39 + Mcqs in Homeostasis Mcqs Page 1 McqOptions

1.	The mechanism of regulation, generally between organism and its environment, of solutes and the gain and the loss of water is called
A.	Homeostasis
B.	Hemostasis
C.	Osmoregualtion
D.	Thermoregulation
Answer» D. Thermoregulation

Discussion

2.	Which of the following statement about Homeostasis is incorrect
A.	There is a definite control system that regulates the homeostatic activities
B.	Homeostatic mechanisms keep the internal environment fixed despite of wide changes in external environment
C.	Because of this the fluctuations of internal environment are of extremely narrow range as compared to that of external environment
D.	All are correct
Answer» C. Because of this the fluctuations of internal environment are of extremely narrow range as compared to that of external environment

Discussion

3.	In osmosis water molecules move from area of _______ to _______ through semipermeable memberane
A.	Higher solute concentration to lower solute concentration
B.	Lower solute concentration to higher solute concentration
C.	Lower solvent concentration to higher solvent concentration
D.	All of these
Answer» C. Lower solvent concentration to higher solvent concentration

Discussion

4.	In animals excess of nitrogen is excreted primarily in form of
A.	Creatinine
B.	Trimethyamine oxide
C.	Pyrimidine
D.	Ammonia
Answer» E.

Discussion

5.	Thick, waxy & leathery cuticle around leaves is present in
A.	Hydrophytes
B.	Mesophytes
C.	Xerophytes
D.	Halophytes
Answer» D. Halophytes

Discussion

6.	Purine and pyrimidine catabolism results in production of
A.	Creatinine
B.	Trimethyamine oxide
C.	Xanthine
D.	None of these
Answer» D. None of these

Discussion

7.	Aquatic animals excrete nitrogenous waste commonly in the form of
A.	Ammonia.
B.	Urea
C.	Uric acid
D.	Trimethylamine oxide
Answer» B. Urea

Discussion

8.	Amount of water required to excrete 1gN of Urea is
A.	1 ml
B.	50 ml
C.	100 ml
D.	150 ml
Answer» C. 100 ml

Discussion

9.	Hydra has no specialized excretory system because
A.	It does not produce waste material
B.	Due to absence of mesoderm
C.	The whole body cells are in contact with water
D.	It has pseudocoelom.
Answer» D. It has pseudocoelom.

Discussion

10.	The nephridia of earthworm open into the coelom by
A.	Nephrostome
B.	Nephridiopore
C.	Flame cell
D.	Anus
Answer» B. Nephridiopore

Discussion

11.	Each ach nephridium of earthworm opens to the exterior by
A.	Nephrostome
B.	Nephridiopore
C.	Flame cell
D.	Anus
Answer» C. Flame cell

Discussion

12.	The distal blind end of the malpighian tubules bathes freely in
A.	Digestive tract
B.	Intestines
C.	Haemocoel
D.	Coelom
Answer» D. Coelom

Discussion

13.	The main nitrogenous waste formed in the body of earthworm is/are
A.	Ammonia
B.	Urea
C.	Uric acid
D.	Trimethylamine oxide
Answer» C. Uric acid

Discussion

14.	Protonephridia are present in
A.	Round worms
B.	Flateworm
C.	Tape worms
D.	Segmented worms
Answer» C. Tape worms

Discussion

15.	Nephrostome in earthworm opens in
A.	External space
B.	Internal Body cavity
C.	In gut
D.	In Bladder
Answer» C. In gut

Discussion

16.	Rose is an example of
A.	Hydrophytes
B.	Mesophytes
C.	Xerophytes
D.	Halophytes
Answer» C. Xerophytes

Discussion

17.	Most of the marine invertebrates are
A.	Osmoconformers
B.	Osmoregulators
C.	Both depend upon the concentration of sea water
D.	None of these
Answer» B. Osmoregulators

Discussion

18.	The characteristic which enable animals to tolerate dehydration is called
A.	Osmoconformation
B.	Osmoregulaton
C.	Anhydrobiosis
D.	Anhydrosis
Answer» D. Anhydrosis

Discussion

19.	In plants which of the following is a waste product produced both during photosynthesis and respiration
A.	CO2
B.	H2O
C.	O2
D.	Both A and B
Answer» C. O2

Discussion

20.	Malphighian tubules absorb waste materials and salts from
A.	Blood
B.	Lymph
C.	Gut
D.	Hemolymph
Answer» E.

Discussion

21.	Which of the following is a segmentally arranged excretory system?
A.	Protonephridium
B.	Metanephridium
C.	Malpighian tubules
D.	Nephrons
Answer» C. Malpighian tubules

Discussion

22.	In Urea cycle ______ ammonia molecules combine with 1 CO2 molecule to form 1 molecule of urea.
A.	1
B.	2
C.	3
D.	4
Answer» C. 3

Discussion

23.	Excessive lactic acid is converted into ________ by liver.
A.	Glucose
B.	Fructose
C.	Sucrose
D.	Glycogen
Answer» E.

Discussion

24.	Each human kidney receives _____ % of total cardiac out put
A.	10%
B.	20%
C.	30%
D.	40%
Answer» C. 30%

Discussion

25.	Which of the following constituent is/are maximum in the filtrate that leaves proximal convoluted tubules
A.	Glucose
B.	Amino acids
C.	Nitrogenous waste
D.	All of these
Answer» D. All of these

Discussion

26.	Mammalian kidney, under restricted water supply can conserve water by over _____ % reabsorption of glomerular filtrate
A.	80.50%
B.	90.50%
C.	95.50%
D.	99.50%
Answer» E.

Discussion

27.	On which of the following site the posterior pituitary hormone acts predominantly
A.	Proximal convoluted tubule
B.	Descending limb of loop of Henle
C.	Ascending limb of loop of Henle
D.	Collecting tubules
Answer» E.

Discussion

28.	A stone measuring 0.4 cm, blocking the outlet of renal pelvis resulting in mild to moderate tract obstruction. Which of the following technique will be opted to remove this stone
A.	Kidney surgery
B.	Burring a hole and removing the stone manually (nephrolithotomy)
C.	Extracorporeal Shock wave lithotripsy
D.	None of these
Answer» D. None of these

Discussion

29.	Formation of heat shock proteins in plants results in
A.	Elevation of temperature in cold conditions.
B.	Embracing the enzymes and other proteins and prevent their denaturation.
C.	Change the chemical nature of other proteins thus making them heat resistant.
D.	Help in evaporative cooling.
Answer» C. Change the chemical nature of other proteins thus making them heat resistant.

Discussion

30.	Animals that produce metabolic heat at low level and also absorb heat from the surroundings are called
A.	Endotherms
B.	Ectotherms
C.	Heterotherms
D.	Homeotherms
Answer» D. Homeotherms

Discussion

31.	Fishes, most of the invertebrates and amphibians are examples of ______ animals
A.	Endotherms
B.	Ectotherms
C.	Heterotherms
D.	Homeotherms
Answer» C. Heterotherms

Discussion

32.	Bats & humming birds belong to
A.	Endotherms
B.	Ectotherms
C.	Heterotherms
D.	Homeotherms
Answer» D. Homeotherms

Discussion

33.	Normal body temperature in mamals like human beings is
A.	26 - 28?C
B.	36 - 38?C
C.	46 - 48?C
D.	56 - 58?C
Answer» C. 46 - 48?C

Discussion

34.	Brown fat present in certain mammals is specialized in
A.	Providing insulation in cold environment.
B.	Providing insulation in hot environment
C.	Rapid heat production.
D.	Controlling heat production.
Answer» D. Controlling heat production.

Discussion

35.	Production of pyrogens is a ________ phenomenon
A.	Protective
B.	Destructive
C.	Constructive
D.	Aggressive
Answer» B. Destructive

Discussion

36.	Name the type of adaptation from the following that is responsible for shivering thermogenesis
A.	Structural
B.	Physiological
C.	Behavioral.
D.	None of these
Answer» D. None of these

Discussion

37.	Thermostat of human body is present in
A.	Fore brain.
B.	Hind Brain.
C.	Thalamus.
D.	Hypothalamus.
Answer» E.

Discussion

38.	Panting is a representative of which mechanism
A.	Pigmentation.
B.	Respiration.
C.	Evaporative cooling.
D.	Excretion.
Answer» D. Excretion.

Discussion

39.	Blubber a thick layer of fat is present in
A.	Fresh water mammals.
B.	Terrestrial mammals.
C.	Marine Mammals.
D.	Flying mammals.
Answer» D. Flying mammals.

Discussion

Explore topic-wise MCQs in Biology Mcqs.

The mechanism of regulation, generally between organism and its environment, of solutes and the gain and the loss of water is called

Which of the following statement about Homeostasis is incorrect

In osmosis water molecules move from area of _ to _ through semipermeable memberane

In animals excess of nitrogen is excreted primarily in form of

Thick, waxy & leathery cuticle around leaves is present in

Purine and pyrimidine catabolism results in production of

Aquatic animals excrete nitrogenous waste commonly in the form of

Amount of water required to excrete 1gN of Urea is

Hydra has no specialized excretory system because

The nephridia of earthworm open into the coelom by

Each ach nephridium of earthworm opens to the exterior by

The distal blind end of the malpighian tubules bathes freely in

The main nitrogenous waste formed in the body of earthworm is/are

Protonephridia are present in

Nephrostome in earthworm opens in

Rose is an example of

Most of the marine invertebrates are

The characteristic which enable animals to tolerate dehydration is called

In plants which of the following is a waste product produced both during photosynthesis and respiration

Malphighian tubules absorb waste materials and salts from

Which of the following is a segmentally arranged excretory system?

In Urea cycle ______ ammonia molecules combine with 1 CO2 molecule to form 1 molecule of urea.

Excessive lactic acid is converted into ________ by liver.

Each human kidney receives _____ % of total cardiac out put

Which of the following constituent is/are maximum in the filtrate that leaves proximal convoluted tubules

Mammalian kidney, under restricted water supply can conserve water by over _____ % reabsorption of glomerular filtrate

On which of the following site the posterior pituitary hormone acts predominantly

A stone measuring 0.4 cm, blocking the outlet of renal pelvis resulting in mild to moderate tract obstruction. Which of the following technique will be opted to remove this stone

Formation of heat shock proteins in plants results in

Animals that produce metabolic heat at low level and also absorb heat from the surroundings are called

Fishes, most of the invertebrates and amphibians are examples of ______ animals

Bats & humming birds belong to

Normal body temperature in mamals like human beings is

Brown fat present in certain mammals is specialized in

Production of pyrogens is a ________ phenomenon

Name the type of adaptation from the following that is responsible for shivering thermogenesis

Thermostat of human body is present in

Panting is a representative of which mechanism

Blubber a thick layer of fat is present in

Explore topic-wise MCQs in Biology Mcqs.

The mechanism of regulation, generally between organism and its environment, of solutes and the gain and the loss of water is called

Which of the following statement about Homeostasis is incorrect

In osmosis water molecules move from area of _______ to _______ through semipermeable memberane

In animals excess of nitrogen is excreted primarily in form of

Thick, waxy & leathery cuticle around leaves is present in

Purine and pyrimidine catabolism results in production of

Aquatic animals excrete nitrogenous waste commonly in the form of

Amount of water required to excrete 1gN of Urea is

Hydra has no specialized excretory system because

The nephridia of earthworm open into the coelom by

Each ach nephridium of earthworm opens to the exterior by

The distal blind end of the malpighian tubules bathes freely in

The main nitrogenous waste formed in the body of earthworm is/are

Protonephridia are present in

Nephrostome in earthworm opens in

Rose is an example of

Most of the marine invertebrates are

The characteristic which enable animals to tolerate dehydration is called

In plants which of the following is a waste product produced both during photosynthesis and respiration

Malphighian tubules absorb waste materials and salts from

Which of the following is a segmentally arranged excretory system?

In Urea cycle ______ ammonia molecules combine with 1 CO2 molecule to form 1 molecule of urea.

Excessive lactic acid is converted into ________ by liver.

Each human kidney receives _____ % of total cardiac out put

Which of the following constituent is/are maximum in the filtrate that leaves proximal convoluted tubules

Mammalian kidney, under restricted water supply can conserve water by over _____ % reabsorption of glomerular filtrate

On which of the following site the posterior pituitary hormone acts predominantly

A stone measuring 0.4 cm, blocking the outlet of renal pelvis resulting in mild to moderate tract obstruction. Which of the following technique will be opted to remove this stone

Formation of heat shock proteins in plants results in

Animals that produce metabolic heat at low level and also absorb heat from the surroundings are called

Fishes, most of the invertebrates and amphibians are examples of ______ animals

Bats & humming birds belong to

Normal body temperature in mamals like human beings is

Brown fat present in certain mammals is specialized in

Production of pyrogens is a ________ phenomenon

Name the type of adaptation from the following that is responsible for shivering thermogenesis

Thermostat of human body is present in

Panting is a representative of which mechanism

Blubber a thick layer of fat is present in

In osmosis water molecules move from area of _ to _ through semipermeable memberane