Regarding the hypothalamus:

the anterior hypothalamus responds to cold

it has neural connections with the anterior pituitary gland

it integrates the vomiting reflex

the anterior hypothalamus responds to cold

it controls circadian rhythms via the supraoptic nuclei

it has osmoreceptors in the anterior hypothalamus to stimulate thirst and vasopressin release

is broken down by glutamate decarboxylase (GA????)

there are five receptor subtypes

benzodiazepines bind to the subunit of the GABA receptor

is involved in 20% of CNS synapses

Regarding acetylcholine:

it is oxidised to choline and acetate by acetylcholinesterase

nicotinic receptors are blocked by atropine

it is the main excitatory transmitter in the spinal cord

it is secreted by the adrenal medulla

tetanus blocks its release at the NMJ

Regarding isometric ventricular reaction:

intraventricular pressure remains constant during this phase

it ends when the AV valve close

Transmitters all are true EXCEPT:

glucagons is found in hypothalamus and retina

angiotensin II is a neurotransmitter of the polypeptidillars

glutamate is an inhibitory amino acid

glucagons is found in hypothalamus and retina

vasopressin is found in posterior pituitary, medulla, spinal cord

Local vasoconstriction results from:

increased potassium concentration

increased magnesium concentration

increased calcium concentration

each receive approximately 20-25% of resting cardiac output

minimally filters protein, so plasma protein concentration is not altered

are supplied by an extensive anastomotic arterial network

lie distal to the juxtaglomerular apparatus

each receive approximately 20-25% of resting cardiac output

do not filter appreciable albumin since membrane pores are too small

Regarding sound and hearing:

high pitched sounds are detected at the apex of the cochlear

Harr cells are bathed in endolymph

defected by hair cells found within the tectorium membrane

95% of afferent neurones outer ??? cells

increased with decreased interstitial fluid protein

an average 500ml/hr into the circulation

proportional to interstitial fluid pressure

increased with decreased interstitial fluid protein

decreased with contraction of muscles

decreased with elevated capillary pressure

Regarding neurotrophins:

CNTF is necessary for the growth and maintenance of sympathetic neurons

NGF and BDNF share the same receptor

the structure of the subunit of NGF resembles that of insulin

CNTF is necessary for the growth and maintenance of sympathetic neurons

disruption of GDNF by gene knockout causes a marked loss of cutaneous mechanoreceptors

may cause hypocalcaemic nephropathy

causes low plasmic Na+ and high H+

retains acid H+ ions and can cause acidosis

doesn t cause oedema due to the escape phenomenon

may cause hypocalcaemic nephropathy

may be caused by high sodium intake

movement across the capillary wall is not affected by the Donnan effect

movement across an impermeable membrane occurs due to an osmotic gradient

equilibrium potential can be determined using the Nernst equation

movement across the capillary wall is not affected by the Donnan effect

valency determines osmotic effect in an ideal solution

forms of weak acids cross cell membranes easily

More on muscles; which is TRUE?

cardiac muscle does not contain regular striation

skeletal muscle cells act as syncytram, though intercellular communications

some skeletal muscles are not subject to voluntary control

smooth muscle contains regularly discharging pacemaker

a variant of smooth muscle is found in the eye, which resembles skeletal muscle

cardiac muscle does not contain regular striation

More on muscles; which is FALSE?

the sarcolemnia transmits action potentials

T tubules are extensions of extracellular space

cystems of SR are in contact with T-tubules

myosin molecules combine to form thick filaments while actin, tropomyosin, and the troponins the t ..

an individual muscle cell is a myofibril, containing myofilaments

the sarcolemnia transmits action potentials

In regard to plasma volume:

the average plasma volume is 500ml

it contributes to 10% of body weight

can easily be measured by radioisotope chromium

if the plasma volume is known, the blood volume can be calculated by multiplying100-HCT/100

measured by injecting Evans blue

the average plasma volume is 500ml

elevated HDL levels are associated with increased risk of atherosclerosis

HDL transports ingested cholesterol from the intestine

HDL transports triglycerides from peripheral tissues

HDL receptors on macrophages are called scavenger receptors

elevated HDL levels are associated with increased risk of atherosclerosis

Regarding neurotransmitters, which of the following is INCORRECT?

GHB (gamma hydroxybutyrate) is inhibitory

GABA is inhibitory at presynaptic neurons

glycine is excitatory at postsynaptic neurons

GHB (gamma hydroxybutyrate) is inhibitory

MAOA is found in nerve endings and platelets

atropine blocks effect of acetylcholine at ???? receptor

reaction between active acetate and choline is catalysed by acetylcholinesterase

nicotinic cholinergic receptors are serpentine receptors

the rate limiting step in synthesis of NOVA is ?????(concussion) of tyrosine to dopa

MAOA is found in nerve endings and platelets

Regarding mitochondria, which of the following is TRUE?

99% of mitochondrial proteins are products of mitochondrial DNA

the outer membrane of the mitochondria is folded to form cristae

the space between the outer and inner mitochondrial space is called matrix space

it is the sperm which contributes to the formation of mitochondria in the zygote

the synthesis of ATP in the mitochondria is triggered by diffusion of H+ from matrix to intracristal space

a polypeptide that tags proteins for degradation

is synthesised in the liver from methionine, glycine and anganine

is converted directly to creatine

has variable excretion from day to day

creatinuria occurs normally in the elderly and in pregnant women

Regarding mitochondria:

the citric acid cycle occurs at the outer membrane

genome inheritance is strictly maternal

the citric acid cycle occurs at the outer membrane

the space between the two membranes is called the matrix

the mutation rate for mitochondrial DNA is less than for nuclear DNA

involutions of the outer membrane are called cristae

Regarding cellular components:

peroxisomes are larger than lysosomes

pH of lysosomes is higher than the rest of the cytoplasm

myosin 1 molecules are characteristically found in muscle cells

microfilaments are made up of actin

For neurotransmitters, which is TRUE?

catecholamines are formed from VMA (vanillylmandelic acid)

acetylcholine is synthesised by true cholinesterase

atropine blocks muscarinic cholinergic receptors

catecholamines are formed from VMA (vanillylmandelic acid)

adrenaline has a higher affinity for rather than adrenergic receptors

dopamine is formed by COMT from tryptophan

For the genome, which is TRUE?

the human genome encodes 3 X 109 genes

adenine binds to cytosine and guanine to thymine

haploid DNA in germ cells is single stranded

For mitochondria, which is TRUE?

99% of mitochondrial proteins are encoded by mitochondrial DNA

NADH-DH, 5DH, bc, cox synthesise ATP

the matrix is between the inner and outer mitochondrial DNA

mitochondrial DNA is not transmitted paternally

99% of mitochondrial proteins are encoded by mitochondrial DNA

ATP synthetase is powered by an electron gradient

In muscle construction, which is TRUE?

ATPase clefts are on the tips of the myosin beads

only contraction is energy requiring, not relaxing

sequestering of Ca2+ causes separation of actin-myosin bands and muscle relaxation

ATPase clefts are on the tips of the myosin beads

ryanodine receptors are voltage gated Ca2+ chains

Troponin T inhibits the interaction of actin and myosin

The golgi apparatus, which is TRUE?

is found only in secretory cells

vesicles containing newly synthesised proteins bind to trans side of the apparatus

constitutive pathway of cell secretion is responsible for further processing and storage of proteins

is responsible for glycorylation of proteins

compact bone makes up 60% of a long bone

osteoclasts attach to bone via integins

compact bone makes up 60% of a long bone

osteoblasts secrete large quantities of type IV collagen and other bone matrix proteins

oestrogens inhibit osteoblasts and stimulate osteoclasts

Regarding plasma protein, all of the following are correct EXCEPT:

rapid loss of plasma proteins may occur during severe burns

albumin, globulin and fibrinogen constitute the major plasma proteins in the plasma

the fibrinogen polymerises into long fibrin threads during blood coagulation

the principal function of albumin is to provide colloid osmotic pressure in the plasma

the majority of plasma proteins are formed in the lymphoid tissue

rapid loss of plasma proteins may occur during severe burns

Creatinine appears in the urine in significant amounts in all of the following EXCEPT:

poorly controlled diabetes mellitus

Regarding free fatty acids, which statement is INCORRECT?

they are the major source of energy for cardiac muscle

circulate in plasma bound to globulin

they are the major source of energy for cardiac muscle

combine with glycerol to form the triglyceride of neutral fat

contain an even number of carbon atoms

require linkage to carnitine in order to cross mitochondrial membranes prior to oxidation

Regarding cholesterol, which statement is INCORRECT?

negatively feeds back on its synthetic pathway

dietary cholesterol is absorbed in the intestine and incorporated into chylomicrons formed in the mucosa

about 20% is in the plasma, with the remainder intracellular

negatively feeds back on its synthetic pathway

most hepatic synthesised cholesterol is incorporated into VLDL

thyroid hormones decrease the plasma cholesterol level

Basal metabolic rate is GREATER in all of the following circumstances EXCEPT:

anxiety compared with depression

Caucasians compared with Chinese and Indians

anxiety compared with depression

feeding compared with starvation

Regarding endothelins, which statement is INCORRECT?

there are low concentrations present in blood

they can cause dose-dependent vasoconstriction in most vascular beds

they are structurally similar to vasoactive intestinal contractor

they have negative inotropic effect

there are low concentrations present in blood

Regarding parathyroid hormone, which is NOT true?

it is secreted by chief cells of he parathyroid glands

it is cleared by Kupffer cells of the liver

its secretion is regulated by the level of bound Ca++ in plasma

What is the most important factor affecting metabolic rate?

high or low environmental temperature

height, weight and surface area

the majority of the lipoproteins are synthesised in the liver

chylomicrons are themselves very large lipoproteins composed of cholesterol, phospholipids, triglycerides and proteins

VLDL contains a higher concentration of triglycerides and a moderate concentration of cholesterol and proteins

HDL contains a very higher concentration of cholesterol and a moderate concentration of phospholipids and triglycerides

the majority of the lipoproteins are synthesised in the liver

the primary function of the lipoproteins are to transport lipids in the blood from liver to adipose tissue

Regarding body surface area, which of the following statements is TRUE?

it does not affect the basal metabolic rate

is calculated using weight/height

is calculated using 0.007184 X weight + 0.425 X weight + 0.725

it does not affect the basal metabolic rate

it does not affect the general metabolic rate

it has an effect on the specific dynamic action of foodstuffs

697 + Mcqs in Physiology in Biology Page 2 McqOptions

51.	Regarding the hypothalamus:
A.	it has neural connections with the anterior pituitary gland
B.	it integrates the vomiting reflex
C.	the anterior hypothalamus responds to cold
D.	it controls circadian rhythms via the supraoptic nuclei
E.	it has osmoreceptors in the anterior hypothalamus to stimulate thirst and vasopressin release
Answer» C. the anterior hypothalamus responds to cold

Discussion

52.	GABA:
A.	decreases Cl- conductance
B.	is broken down by glutamate decarboxylase (GA????)
C.	there are five receptor subtypes
D.	benzodiazepines bind to the subunit of the GABA receptor
E.	is involved in 20% of CNS synapses
Answer» F.

Discussion

53.	Regarding acetylcholine:
A.	it is oxidised to choline and acetate by acetylcholinesterase
B.	nicotinic receptors are blocked by atropine
C.	it is the main excitatory transmitter in the spinal cord
D.	it is secreted by the adrenal medulla
E.	tetanus blocks its release at the NMJ
Answer» F.

Discussion

54.	Regarding isometric ventricular reaction:
A.	it occurs late in diastole
B.	ventricular filling occurs
C.	intraventricular pressure remains constant during this phase
D.	it ends when the AV valve close
E.	it ends when the AV valve open
Answer» F.

Discussion

55.	Transmitters all are true EXCEPT:
A.	angiotensin II is a neurotransmitter of the polypeptidillars
B.	glutamate is an inhibitory amino acid
C.	glucagons is found in hypothalamus and retina
D.	vasopressin is found in posterior pituitary, medulla, spinal cord
E.	serotonin is an amine
Answer» C. glucagons is found in hypothalamus and retina

Discussion

56.	Local vasoconstriction results from:
A.	increased potassium concentration
B.	increased magnesium concentration
C.	increased sodium concentration
D.	decrease in pH
E.	increased calcium concentration
Answer» F.

Discussion

57.	Glomeruli:
A.	minimally filters protein, so plasma protein concentration is not altered
B.	are supplied by an extensive anastomotic arterial network
C.	lie distal to the juxtaglomerular apparatus
D.	each receive approximately 20-25% of resting cardiac output
E.	do not filter appreciable albumin since membrane pores are too small
Answer» D. each receive approximately 20-25% of resting cardiac output

Discussion

58.	Regarding sound and hearing:
A.	high pitched sounds are detected at the apex of the cochlear
B.	Harr cells are bathed in endolymph
C.	defected by hair cells found within the tectorium membrane
D.	95% of afferent neurones outer ??? cells
E.	supplied by retinal vessels
Answer» F.

Discussion

59.	Lymph flow is:
A.	an average 500ml/hr into the circulation
B.	proportional to interstitial fluid pressure
C.	increased with decreased interstitial fluid protein
D.	decreased with contraction of muscles
E.	decreased with elevated capillary pressure
Answer» C. increased with decreased interstitial fluid protein

Discussion

60.	Regarding neurotrophins:
A.	NGF and BDNF share the same receptor
B.	the structure of the subunit of NGF resembles that of insulin
C.	CNTF is necessary for the growth and maintenance of sympathetic neurons
D.	disruption of GDNF by gene knockout causes a marked loss of cutaneous mechanoreceptors
E.	none of the above are true
Answer» C. CNTF is necessary for the growth and maintenance of sympathetic neurons

Discussion

61.	Hyperaldosteronism:
A.	causes low plasmic Na+ and high H+
B.	retains acid H+ ions and can cause acidosis
C.	doesn t cause oedema due to the escape phenomenon
D.	may cause hypocalcaemic nephropathy
E.	may be caused by high sodium intake
Answer» D. may cause hypocalcaemic nephropathy

Discussion

62.	Ionic:
A.	movement across an impermeable membrane occurs due to an osmotic gradient
B.	equilibrium potential can be determined using the Nernst equation
C.	movement across the capillary wall is not affected by the Donnan effect
D.	valency determines osmotic effect in an ideal solution
E.	forms of weak acids cross cell membranes easily
Answer» C. movement across the capillary wall is not affected by the Donnan effect

Discussion

63.	More on muscles; which is TRUE?
A.	skeletal muscle cells act as syncytram, though intercellular communications
B.	some skeletal muscles are not subject to voluntary control
C.	smooth muscle contains regularly discharging pacemaker
D.	a variant of smooth muscle is found in the eye, which resembles skeletal muscle
E.	cardiac muscle does not contain regular striation
Answer» E. cardiac muscle does not contain regular striation

Discussion

64.	More on muscles; which is FALSE?
A.	T tubules are extensions of extracellular space
B.	cystems of SR are in contact with T-tubules
C.	myosin molecules combine to form thick filaments while actin, tropomyosin, and the troponins the t ..
D.	an individual muscle cell is a myofibril, containing myofilaments
E.	the sarcolemnia transmits action potentials
Answer» E. the sarcolemnia transmits action potentials

Discussion

65.	In regard to plasma volume:
A.	it contributes to 10% of body weight
B.	can easily be measured by radioisotope chromium
C.	if the plasma volume is known, the blood volume can be calculated by multiplying100-HCT/100
D.	measured by injecting Evans blue
E.	the average plasma volume is 500ml
Answer» E. the average plasma volume is 500ml

Discussion

66.	Regarding HDL:
A.	HDL transports ingested cholesterol from the intestine
B.	HDL transports triglycerides from peripheral tissues
C.	HDL receptors on macrophages are called scavenger receptors
D.	elevated HDL levels are associated with increased risk of atherosclerosis
E.	none of the above are correct
Answer» D. elevated HDL levels are associated with increased risk of atherosclerosis

Discussion

67.	Regarding neurotransmitters, which of the following is INCORRECT?
A.	glutamate is excitatory
B.	GABA is inhibitory at presynaptic neurons
C.	glycine is excitatory at postsynaptic neurons
D.	GHB (gamma hydroxybutyrate) is inhibitory
E.	aspartate is excitatory
Answer» D. GHB (gamma hydroxybutyrate) is inhibitory

Discussion

68.	Neurotransmitters:
A.	atropine blocks effect of acetylcholine at ???? receptor
B.	reaction between active acetate and choline is catalysed by acetylcholinesterase
C.	nicotinic cholinergic receptors are serpentine receptors
D.	the rate limiting step in synthesis of NOVA is ?????(concussion) of tyrosine to dopa
E.	MAOA is found in nerve endings and platelets
Answer» E. MAOA is found in nerve endings and platelets

Discussion

69.	Regarding mitochondria, which of the following is TRUE?
A.	99% of mitochondrial proteins are products of mitochondrial DNA
B.	the outer membrane of the mitochondria is folded to form cristae
C.	the space between the outer and inner mitochondrial space is called matrix space
D.	it is the sperm which contributes to the formation of mitochondria in the zygote
E.	the synthesis of ATP in the mitochondria is triggered by diffusion of H+ from matrix to intracristal space
Answer» F.

Discussion

70.	Ubiquitin is:
A.	an essential amino acid
B.	a polypeptide that tags proteins for degradation
C.	a cell membrane glycoprotein
D.	a precursor or uric acid
E.	none of the above
Answer» C. a cell membrane glycoprotein

Discussion

71.	Which of the following enzymes are missing in the zona glomerulosa?
A.	17 hydroxylase
B.	11 hydroxylase
C.	21 hydroxylase
D.	cholesterol desmolase
E.	3 hydroxysteroid
Answer» B. 11 hydroxylase

Discussion

72.	Creatinine:
A.	is synthesised in the liver from methionine, glycine and anganine
B.	is converted directly to creatine
C.	has variable excretion from day to day
D.	creatinuria occurs normally in the elderly and in pregnant women
E.	all of the above
Answer» E. all of the above

Discussion

73.	Regarding mitochondria:
A.	genome inheritance is strictly maternal
B.	the citric acid cycle occurs at the outer membrane
C.	the space between the two membranes is called the matrix
D.	the mutation rate for mitochondrial DNA is less than for nuclear DNA
E.	involutions of the outer membrane are called cristae
Answer» B. the citric acid cycle occurs at the outer membrane

Discussion

74.	What percentage of body weight is plasma?
A.	2%
B.	5%
C.	8%
D.	15%
E.	20%
Answer» C. 8%

Discussion

75.	Regarding cellular components:
A.	peroxisomes are larger than lysosomes
B.	pH of lysosomes is higher than the rest of the cytoplasm
C.	microfilaments are hollow
D.	myosin 1 molecules are characteristically found in muscle cells
E.	microfilaments are made up of actin
Answer» F.

Discussion

76.	For neurotransmitters, which is TRUE?
A.	acetylcholine is synthesised by true cholinesterase
B.	atropine blocks muscarinic cholinergic receptors
C.	catecholamines are formed from VMA (vanillylmandelic acid)
D.	adrenaline has a higher affinity for rather than adrenergic receptors
E.	dopamine is formed by COMT from tryptophan
Answer» C. catecholamines are formed from VMA (vanillylmandelic acid)

Discussion

77.	For the genome, which is TRUE?
A.	the human genome encodes 3 X 109 genes
B.	adenine binds to cytosine and guanine to thymine
C.	uracil replaces thymine in RNA
D.	3% of DNA are introns
E.	haploid DNA in germ cells is single stranded
Answer» D. 3% of DNA are introns

Discussion

78.	For mitochondria, which is TRUE?
A.	NADH-DH, 5DH, bc, cox synthesise ATP
B.	the matrix is between the inner and outer mitochondrial DNA
C.	mitochondrial DNA is not transmitted paternally
D.	99% of mitochondrial proteins are encoded by mitochondrial DNA
E.	ATP synthetase is powered by an electron gradient
Answer» D. 99% of mitochondrial proteins are encoded by mitochondrial DNA

Discussion

79.	In muscle construction, which is TRUE?
A.	only contraction is energy requiring, not relaxing
B.	sequestering of Ca2+ causes separation of actin-myosin bands and muscle relaxation
C.	ATPase clefts are on the tips of the myosin beads
D.	ryanodine receptors are voltage gated Ca2+ chains
E.	Troponin T inhibits the interaction of actin and myosin
Answer» C. ATPase clefts are on the tips of the myosin beads

Discussion

80.	The golgi apparatus, which is TRUE?
A.	is found only in secretory cells
B.	vesicles containing newly synthesised proteins bind to trans side of the apparatus
C.	constitutive pathway of cell secretion is responsible for further processing and storage of proteins
D.	is responsible for glycorylation of proteins
E.	none of the above
Answer» F.

Discussion

81.	Bone:
A.	osteoblasts are multinucleate
B.	osteoclasts attach to bone via integins
C.	compact bone makes up 60% of a long bone
D.	osteoblasts secrete large quantities of type IV collagen and other bone matrix proteins
E.	oestrogens inhibit osteoblasts and stimulate osteoclasts
Answer» C. compact bone makes up 60% of a long bone

Discussion

82.	Which of the following is NOT a purine?
A.	adenine
B.	cytosine
C.	guanine
D.	hypoxanthine
E.	xanthine
Answer» C. guanine

Discussion

83.	Regarding plasma protein, all of the following are correct EXCEPT:
A.	albumin, globulin and fibrinogen constitute the major plasma proteins in the plasma
B.	the fibrinogen polymerises into long fibrin threads during blood coagulation
C.	the principal function of albumin is to provide colloid osmotic pressure in the plasma
D.	the majority of plasma proteins are formed in the lymphoid tissue
E.	rapid loss of plasma proteins may occur during severe burns
Answer» E. rapid loss of plasma proteins may occur during severe burns

Discussion

84.	Creatinine appears in the urine in significant amounts in all of the following EXCEPT:
A.	normal men
B.	thyrotoxicosis
C.	post-partum
D.	poorly controlled diabetes mellitus
E.	children
Answer» B. thyrotoxicosis

Discussion

85.	Regarding free fatty acids, which statement is INCORRECT?
A.	circulate in plasma bound to globulin
B.	they are the major source of energy for cardiac muscle
C.	combine with glycerol to form the triglyceride of neutral fat
D.	contain an even number of carbon atoms
E.	require linkage to carnitine in order to cross mitochondrial membranes prior to oxidation
Answer» B. they are the major source of energy for cardiac muscle

Discussion

86.	How many ATP molecules are produced from one glucose molecule metabolised aerobically via the Embden-Meyerhof pathway and citric acid cycle?
A.	32
B.	34
C.	36
D.	38
E.	40
Answer» E. 40

Discussion

87.	Regarding cholesterol, which statement is INCORRECT?
A.	dietary cholesterol is absorbed in the intestine and incorporated into chylomicrons formed in the mucosa
B.	about 20% is in the plasma, with the remainder intracellular
C.	negatively feeds back on its synthetic pathway
D.	most hepatic synthesised cholesterol is incorporated into VLDL
E.	thyroid hormones decrease the plasma cholesterol level
Answer» C. negatively feeds back on its synthetic pathway

Discussion

88.	Which amino acid is NOT ketogenic (ie CAN T be converted into acetoacetate)?
A.	leucine
B.	isoleucine
C.	phenylalanine
D.	tyrosine
E.	proline
Answer» F.

Discussion

89.	Basal metabolic rate is GREATER in all of the following circumstances EXCEPT:
A.	children compared with adults
B.	Caucasians compared with Chinese and Indians
C.	females compared with males
D.	anxiety compared with depression
E.	feeding compared with starvation
Answer» D. anxiety compared with depression

Discussion

90.	Which lipoprotein contains the GREATEST proportion of triglyceride?
A.	VLDL
B.	IDL
C.	chylomicrons
D.	LDL
E.	HDL
Answer» D. LDL

Discussion

91.	Regarding endothelins, which statement is INCORRECT?
A.	they can cause dose-dependent vasoconstriction in most vascular beds
B.	they activate phospholipase C
C.	they are structurally similar to vasoactive intestinal contractor
D.	they have negative inotropic effect
E.	there are low concentrations present in blood
Answer» E. there are low concentrations present in blood

Discussion

92.	Which lipoprotein contains the GREATEST proportion of cholesterol and cholesterol esters?
A.	VLDL
B.	IDL
C.	chylomicrons
D.	LDL
E.	HDL
Answer» E. HDL

Discussion

93.	Regarding parathyroid hormone, which is NOT true?
A.	it decreases plasma phosphate
B.	it is secreted by chief cells of he parathyroid glands
C.	it is cleared by Kupffer cells of the liver
D.	its secretion is regulated by the level of bound Ca++ in plasma
E.	it increases bone reabsorption
Answer» E. it increases bone reabsorption

Discussion

94.	Which lipoprotein contains the GREATEST proportion of protein?
A.	VLDL
B.	IDL
C.	chylomicrons
D.	LDL
E.	HDL
Answer» F.

Discussion

95.	What is the basal metabolic rate of an average sized man per day?
A.	1000 Kcal
B.	2000 Kcal
C.	3000 Kcal
D.	4000 Kcal
E.	5000 Kcal
Answer» C. 3000 Kcal

Discussion

96.	What is the most important factor affecting metabolic rate?
A.	muscular exertion
B.	recent ingestion of food
C.	high or low environmental temperature
D.	height, weight and surface area
E.	sex
Answer» B. recent ingestion of food

Discussion

97.	Which of the following are NON ESSENTIAL amino acids?
A.	valine
B.	leucine
C.	isoleucine
D.	cysteine
E.	methionine
Answer» E. methionine

Discussion

98.	Factors that predisposes to atherosclerosis includes all of the following EXCEPT:
A.	diabetes
B.	hypothyroidism
C.	smoking
D.	male sex
E.	female sex hormone
Answer» F.

Discussion

99.	Lipoproteins:
A.	chylomicrons are themselves very large lipoproteins composed of cholesterol, phospholipids, triglycerides and proteins
B.	VLDL contains a higher concentration of triglycerides and a moderate concentration of cholesterol and proteins
C.	HDL contains a very higher concentration of cholesterol and a moderate concentration of phospholipids and triglycerides
D.	the majority of the lipoproteins are synthesised in the liver
E.	the primary function of the lipoproteins are to transport lipids in the blood from liver to adipose tissue
Answer» D. the majority of the lipoproteins are synthesised in the liver

Discussion

100.	Regarding body surface area, which of the following statements is TRUE?
A.	is calculated using weight/height
B.	is calculated using 0.007184 X weight + 0.425 X weight + 0.725
C.	it does not affect the basal metabolic rate
D.	it does not affect the general metabolic rate
E.	it has an effect on the specific dynamic action of foodstuffs
Answer» C. it does not affect the basal metabolic rate

Discussion

Explore topic-wise MCQs in Biology.

Regarding the hypothalamus:

GABA:

Regarding acetylcholine:

Regarding isometric ventricular reaction:

Transmitters all are true EXCEPT:

Local vasoconstriction results from:

Glomeruli:

Regarding sound and hearing:

Lymph flow is:

Regarding neurotrophins:

Hyperaldosteronism:

Ionic:

More on muscles; which is TRUE?

More on muscles; which is FALSE?

In regard to plasma volume:

Regarding HDL:

Regarding neurotransmitters, which of the following is INCORRECT?

Neurotransmitters:

Regarding mitochondria, which of the following is TRUE?

Ubiquitin is:

Which of the following enzymes are missing in the zona glomerulosa?

Creatinine:

Regarding mitochondria:

What percentage of body weight is plasma?

Regarding cellular components:

For neurotransmitters, which is TRUE?

For the genome, which is TRUE?

For mitochondria, which is TRUE?

In muscle construction, which is TRUE?

The golgi apparatus, which is TRUE?

Bone:

Which of the following is NOT a purine?

Regarding plasma protein, all of the following are correct EXCEPT:

Creatinine appears in the urine in significant amounts in all of the following EXCEPT:

Regarding free fatty acids, which statement is INCORRECT?

How many ATP molecules are produced from one glucose molecule metabolised aerobically via the Embden-Meyerhof pathway and citric acid cycle?

Regarding cholesterol, which statement is INCORRECT?

Which amino acid is NOT ketogenic (ie CAN T be converted into acetoacetate)?

Basal metabolic rate is GREATER in all of the following circumstances EXCEPT:

Which lipoprotein contains the GREATEST proportion of triglyceride?

Regarding endothelins, which statement is INCORRECT?

Which lipoprotein contains the GREATEST proportion of cholesterol and cholesterol esters?

Regarding parathyroid hormone, which is NOT true?

Which lipoprotein contains the GREATEST proportion of protein?

What is the basal metabolic rate of an average sized man per day?

What is the most important factor affecting metabolic rate?

Which of the following are NON ESSENTIAL amino acids?

Factors that predisposes to atherosclerosis includes all of the following EXCEPT:

Lipoproteins:

Regarding body surface area, which of the following statements is TRUE?