Excess of phosphates and nitrates in water bodies causes

Increase in the growth rate of decomposers

In the heart of man the bicuspid valve is situated between ______.

Right auricle and right ventricle

Right ventricle and pulmonary aorta

Left auricle and left ventricle

Right auricle and right ventricle

ln human beings, the chromosomes that determine birth of a normal female child are ___________.

one X chromosome from mother and one Y chromosome from father

one X chromosome from mother and one X chromosome from father

one X chromosome from mother and one Y chromosome from father

two X chromosomes from mother and one X chromosome from father

one X chromosome and one Y chromosome from father and one X chromosome from mother

2103 + Mcqs in Biology Page 8 McqOptions

351.	______ found in blood, is responsible for oxygen transportation.
A.	WBC
B.	RBC
C.	Plasma
D.	Platelets
Answer» C. Plasma

Discussion

352.	Anaemia is related to ______.
A.	Iodine deficiency
B.	Calcium deficiency
C.	Iron deficiency
D.	Food poisoning
Answer» D. Food poisoning

Discussion

353.	Excess of phosphates and nitrates in water bodies causes
A.	Nutritional deficiency
B.	Algal bloom
C.	Decrease of water pollution
D.	Increase in the growth rate of decomposers
Answer» C. Decrease of water pollution

Discussion

354.	In humans, exhaled air contains oxygen about ________.
A.	40%
B.	44%
C.	16%
D.	64%
Answer» D. 64%

Discussion

355.	Detoxification of harmful substances takes place in which of the following organ in human beings?
A.	Spleen
B.	Liver
C.	Colon
D.	Kidney
Answer» C. Colon

Discussion

356.	From the following which is an example of a single-celled organism?
A.	Protozoa
B.	Anthropods
C.	Echinoderms
D.	Annelids
Answer» B. Anthropods

Discussion

357.	Bending of shoot of a plant towards light can be referred to as
A.	photonasty
B.	positive phototropism
C.	negative phototropism
D.	photoperiodism
Answer» C. negative phototropism

Discussion

358.	Excessive amount of calcium oxalate in the body causes ______.A. BronchitisB. DiabetesC. StonesD. Meningitis
A.	B
B.	A
C.	C
D.	D
Answer» D. D

Discussion

359.	Melanin is the natural pigment that gives colour to human skin, hair and the iris. It provides protection against the
A.	Ultraviolet radiation
B.	Infrared radiation
C.	X-ray radiation
D.	Short wave radio radiation
Answer» B. Infrared radiation

Discussion

360.	On which part of the human eye is the image formed?
A.	Retina
B.	Cornea
C.	Optic nerve
D.	Iris
Answer» B. Cornea

Discussion

361.	Father of taxonomy is
A.	De Candolle
B.	Hooker
C.	Linnaeus
D.	Aristotle
Answer» D. Aristotle

Discussion

362.	Deficiency of which of the following vitamins causes Night Blindness?
A.	Vitamin C
B.	Vitamin D
C.	Vitamin B
D.	Vitamin A
Answer» E.

Discussion

363.	Identify the correct statements related to Z-scheme of light reactionI) Transfer of electrons starts from PSIIII) The electrons passed down the chain to PSII againIII) The electrons reaches finally downhill to \(NADP^+\)IV) The electron carriers are not placed in a sequence on a redox potential scale
A.	I, II
B.	III, IV
C.	I, III
D.	II, III
Answer» D. II, III

Discussion

364.	Prostate gland is present below ________.
A.	The kidneys
B.	The scrotum
C.	The urinary bladder
D.	The penis
Answer» D. The penis

Discussion

365.	In vertebrates, smooth endoplasmic reticulum plays a crucial role in detoxifying _____ from many drugs.
A.	small intestine
B.	liver
C.	brain
D.	lungs
Answer» C. brain

Discussion

366.	Muscle fatigue is due to accumulation of
A.	Carbon dioxide
B.	Creatinine
C.	Lactic acid
D.	Ethyl alcohol
Answer» D. Ethyl alcohol

Discussion

367.	Iodine is a vital component of hormones produced by:
A.	Thyroid gland
B.	Adrenal gland
C.	Pituitary gland
D.	Pancreas
Answer» B. Adrenal gland

Discussion

368.	Poisonous substance found in nematocysts of hydra is
A.	Hyponotoxin
B.	Haematin
C.	Heparin
D.	Thrombin
Answer» B. Haematin

Discussion

369.	Eichornia can be classified under which of the following type of plants?
A.	Xerophytes
B.	Epiphytes
C.	Halophytes
D.	Hydrophytes
Answer» E.

Discussion

370.	Equus burchellii is the scientific name of _________.
A.	Horse
B.	Zebra
C.	Buffalo
D.	Ass
Answer» C. Buffalo

Discussion

371.	AIDS is caused by a virus whose genetic material is
A.	single stranded circular DNA
B.	double stranded DNA
C.	single stranded RNA
D.	Double stranded RNA
Answer» D. Double stranded RNA

Discussion

372.	Gasoline is the name given to the same substance as?
A.	Diesel oil
B.	Natural gas
C.	Petrol
D.	Crude oil
Answer» D. Crude oil

Discussion

373.	________ is a scientific discipline concerned with the study of plant pollen, spores, and certain microscopic planktonic organisms, in both, living and fossil form.
A.	Dendrology
B.	Ethnobotany
C.	Palynology
D.	Paleobotany
Answer» D. Paleobotany

Discussion

374.	Hormone secreting structure produced after ovulation is
A.	Corpus albicans
B.	Corpus spongiosum
C.	Corpus callosum
D.	Corpus luteum
Answer» E.

Discussion

375.	Examine the following pairs:A. Ramdeo Mishra1. Father of Ecology in IndiaB. Robert Brown2. Father of Micro BiologyC. Anton Van Leeuwenhoek3. Discoverer of NucleusD. Newton4. Universal Law of GravitationChoose the INCORRECT pairs:
A.	A, B and D only
B.	B, C and D only
C.	B and C only
D.	A and D only
Answer» D. A and D only

Discussion

376.	Members of which group are used in making beer?
A.	Rhizopus
B.	Albugo
C.	Neurospora
D.	Yeast
Answer» E.

Discussion

377.	Dengue virus causes high fever, rashes and reduces the number of a particular type of blood cells. Those blood cells are
A.	Monocytes
B.	Platelets
C.	Eosinophils
D.	Neutrophils
Answer» C. Eosinophils

Discussion

378.	_______ is a multicellular organism.
A.	Agaricus
B.	Cyanobacteria
C.	Mycoplasma
D.	Paramecium
Answer» B. Cyanobacteria

Discussion

379.	In humans, ribs are attached to ________.
A.	clavicle
B.	ileum
C.	sternum
D.	scapula
Answer» D. scapula

Discussion

380.	In which of the following phylum, would you place an animal with a bilaterally symmetrical, triploblastic body without a true internal cavity (coelom)?
A.	Porifera
B.	Platyhelminthes
C.	Cnidaria
D.	Annelida
Answer» C. Cnidaria

Discussion

381.	Emasculation is achieved by ________________.
A.	Removal of Anther
B.	Removal of Style
C.	Removal of Petals
D.	Removal of Sepals
Answer» B. Removal of Style

Discussion

382.	Amoeba, Paramecium and Bacteria undergo:
A.	Sexual reproduction
B.	budding
C.	binary fission
D.	multiple fission
Answer» D. multiple fission

Discussion

383.	Arthritis is the disease of ________.
A.	Skin
B.	Kidney
C.	Liver
D.	Joints
Answer» E.

Discussion

384.	Glomerulus and Bowman's Capsule are part of which body organ?
A.	Kidney
B.	Lungs
C.	Heart
D.	Liver
Answer» B. Lungs

Discussion

385.	In the heart of man the bicuspid valve is situated between ______.
A.	Right ventricle and pulmonary aorta
B.	Left auricle and left ventricle
C.	Right auricle and right ventricle
D.	Postcaval and auricle
Answer» C. Right auricle and right ventricle

Discussion

386.	Food web is a system of interlocking and interdependent ______.
A.	Food cycles
B.	Food chains
C.	Food system
D.	None of these
Answer» C. Food system

Discussion

387.	'Flora and fauna' refer to ______.
A.	birds and animals
B.	mountains and rivers
C.	plants and animals
D.	humans and animals
Answer» D. humans and animals

Discussion

388.	Accumulation of which chemical leads to kidney stones?
A.	Phthalates
B.	Albuminuria
C.	Calcium Oxalate
D.	Bispehnol A
Answer» D. Bispehnol A

Discussion

389.	_______ is the common name for Ascaris.
A.	Tape worm
B.	Earthworm
C.	Pinworms
D.	Round worm
Answer» E.

Discussion

390.	If the chromosome number is 46 in a human being, how many chromosomes are present in somatic cells of the human being?
A.	24
B.	46
C.	23
D.	48
Answer» C. 23

Discussion

391.	In lichen Soredium, Cephalodum and isidium are mode of:
A.	Vegetative reproduction
B.	Asexual reproduction
C.	Sexual reproduction
D.	None of these
Answer» C. Sexual reproduction

Discussion

392.	More diversity is allowed for breeding by _____.
A.	Vegetative propagation
B.	Tissue culture
C.	Asexual reproduction
D.	Sexual reproduction
Answer» E.

Discussion

393.	Parkinson’s disease affects which of the following organ in human beings?
A.	Lungs
B.	Brain
C.	Heart
D.	Kidneys
Answer» C. Heart

Discussion

394.	______ tissue changes the diameter of a blood vessel.
A.	Heart
B.	Muscle
C.	Epithelial
D.	Bone
Answer» C. Epithelial

Discussion

395.	ln human beings, the chromosomes that determine birth of a normal female child are ___________.
A.	one X chromosome from mother and one X chromosome from father
B.	one X chromosome from mother and one Y chromosome from father
C.	two X chromosomes from mother and one X chromosome from father
D.	one X chromosome and one Y chromosome from father and one X chromosome from mother
Answer» B. one X chromosome from mother and one Y chromosome from father

Discussion

396.	All green plants and certain blue-green algae which can produce food by photosynthesis are called the _____.
A.	Consumers
B.	Producers
C.	Decomposers
D.	Bacteria
Answer» C. Decomposers

Discussion

397.	Angiography is used to visualize lumen of:
A.	Arteries
B.	Veins
C.	Heart chambers
D.	All of the above
Answer» E.

Discussion

398.	Flame cells are
A.	Reproductive
B.	Excretory
C.	Sensory
D.	Inflammatory
Answer» C. Sensory

Discussion

399.	Computed _______ scan is a medical imaging technique that uses a computer-processed combination of multiple X-ray measurements taken from different angles to produce tomographic images of the body, allowing doctors to see inside the body without internal procedures.
A.	Tomography
B.	Topography
C.	Taping
D.	Tracking
Answer» B. Topography

Discussion

400.	In the grass family cotyledons are called
A.	Scutellum
B.	Epicotyl
C.	Hypocotyl
D.	Tigellum
Answer» B. Epicotyl

Discussion

Explore topic-wise MCQs in Current Affairs.

______ found in blood, is responsible for oxygen transportation.

Anaemia is related to ______.

Excess of phosphates and nitrates in water bodies causes

In humans, exhaled air contains oxygen about ________.

Detoxification of harmful substances takes place in which of the following organ in human beings?

From the following which is an example of a single-celled organism?

Bending of shoot of a plant towards light can be referred to as

Excessive amount of calcium oxalate in the body causes ______.A. BronchitisB. DiabetesC. StonesD. Meningitis

Melanin is the natural pigment that gives colour to human skin, hair and the iris. It provides protection against the

On which part of the human eye is the image formed?

Father of taxonomy is

Deficiency of which of the following vitamins causes Night Blindness?

Prostate gland is present below ________.

In vertebrates, smooth endoplasmic reticulum plays a crucial role in detoxifying _____ from many drugs.

Muscle fatigue is due to accumulation of

Iodine is a vital component of hormones produced by:

Poisonous substance found in nematocysts of hydra is

Eichornia can be classified under which of the following type of plants?

Equus burchellii is the scientific name of _________.

AIDS is caused by a virus whose genetic material is

Gasoline is the name given to the same substance as?

________ is a scientific discipline concerned with the study of plant pollen, spores, and certain microscopic planktonic organisms, in both, living and fossil form.

Hormone secreting structure produced after ovulation is

Examine the following pairs:A. Ramdeo Mishra1. Father of Ecology in IndiaB. Robert Brown2. Father of Micro BiologyC. Anton Van Leeuwenhoek3. Discoverer of NucleusD. Newton4. Universal Law of GravitationChoose the INCORRECT pairs:

Members of which group are used in making beer?

Dengue virus causes high fever, rashes and reduces the number of a particular type of blood cells. Those blood cells are

_______ is a multicellular organism.

In humans, ribs are attached to ________.

In which of the following phylum, would you place an animal with a bilaterally symmetrical, triploblastic body without a true internal cavity (coelom)?

Emasculation is achieved by ________________.

Amoeba, Paramecium and Bacteria undergo:

Arthritis is the disease of ________.

Glomerulus and Bowman's Capsule are part of which body organ?

In the heart of man the bicuspid valve is situated between ______.

Food web is a system of interlocking and interdependent ______.

'Flora and fauna' refer to ______.

Accumulation of which chemical leads to kidney stones?

_______ is the common name for Ascaris.

If the chromosome number is 46 in a human being, how many chromosomes are present in somatic cells of the human being?

In lichen Soredium, Cephalodum and isidium are mode of:

More diversity is allowed for breeding by _____.

Parkinson’s disease affects which of the following organ in human beings?

______ tissue changes the diameter of a blood vessel.

ln human beings, the chromosomes that determine birth of a normal female child are ___________.

All green plants and certain blue-green algae which can produce food by photosynthesis are called the _____.

Angiography is used to visualize lumen of:

Flame cells are

Computed _______ scan is a medical imaging technique that uses a computer-processed combination of multiple X-ray measurements taken from different angles to produce tomographic images of the body, allowing doctors to see inside the body without internal procedures.

In the grass family cotyledons are called