Explore topic-wise MCQs in Biology.

This section includes 1075 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

601.

Respiration is

A. oxidation
B. reduction
C. hydrolysis
D. amination
Answer» B. reduction
602.

Scurvy is a disease which is caused due to the deficiency of vitamin

A. A
B. K
C. C
D. B
E. <sub>12</sub>
Answer» D. B
603.

Toxicology is related to the study of

A. viruses
B. bacteria
C. diseases
D. poisons
Answer» E.
604.

Quarantine regulation is concerned with

A. growing of better varieties of plant
B. prevention of entry of diseased organism
C. spraying of insecticide over diseased plants
D. identification of diseased organism
Answer» C. spraying of insecticide over diseased plants
605.

Lac is produced from

A. a tree
B. an insect
C. an cat
D. a muskrat
Answer» C. an cat
606.

Through Photosynthesis green plants generate

A. inorganic materials
B. minerals
C. organic materials
D. nutrients
Answer» D. nutrients
607.

The name of the first cloned sheep was

A. Molly
B. Dolly
C. Jolly
D. Roly
Answer» C. Jolly
608.

Which part of human body is first highly affected by nuclear radiation ?

A. Eyes
B. Lungs
C. Skin
D. Bone Marrow
Answer» D. Bone Marrow
609.

The concept of tissue culture was introduced by

A. Halfmeister
B. Hanstein
C. Haberlandt
D. Hanning
Answer» D. Hanning
610.

Which among the following is used in the treatment of tuberculosis ?

A. Penicillin
B. Aspirin
C. Paracetamol
D. Dettol
Answer» B. Aspirin
611.

Fluid part of blood devoid of corpuscles is called

A. Tissue fluid
B. Plasma
C. Serum
D. Lymph
Answer» D. Lymph
612.

The vitamin most readily destroyed by heat is

A. Riboflavin
B. Ascorbic acid
C. Tocopherol
D. Thiamine
Answer» C. Tocopherol
613.

The science dealing with the study of teeth is

A. Odontology
B. Ornithology
C. Phenology
D. Cosmology
Answer» B. Ornithology
614.

Raja Rao the famous Indian Novelist who died on 8th July 2006. The title of his first novel was

A. Kanthapura
B. The Serpent and The Rope
C.
D. The Chess Master and His Moves
E. The Cat and Shakespeare
Answer» B. The Serpent and The Rope
615.

Ripe grapes contain

A. Fructose
B. Sucrose
C. Galactose
D. Glucose
Answer» B. Sucrose
616.

Panda belongs to the same family as that

A. Kangaroo
B. Porcupine
C. Whale
D. Bear
Answer» E.
617.

The language used in writing the scientific name of animals is

A. French
B. Latin
C. German
D. Dutch
Answer» C. German
618.

Which of the following has no skeleton at all ?

A. Star fish
B. Sponge
C. Jelly fish
D. Silver fish
Answer» E.
619.

The presence of air cavities is an adaptation of

A. Desert plants
B. Trees
C. Water plants
D. Mesophytes
Answer» D. Mesophytes
620.

Radioimmunoassay (RIA) is a therapy used

A. to cure lung cancer
B. to cure AIDS
C. to cure fractures in bones
D.
E. to detect antibodies and hormones present in the blood samples
Answer» E. to detect antibodies and hormones present in the blood samples
621.

Blood cancer is otherwise called as

A. Anaemia
B. Polycythemia
C. Leucopenia
D. Leukaemia
Answer» E.
622.

The medical term used for the sleeplessness is

A. Somnambulism
B. Insomnia
C. Hallucination
D. Nyctinuria
Answer» C. Hallucination
623.

The causative agent of Tuberculosis is

A. Mycobacterium
B. Aspergillus
C. Rhabdovirus
D. HIV
Answer» B. Aspergillus
624.

The study of extinct animals is called

A. Herpetology
B. Ornithology
C. Geology
D. Palaeontology
Answer» E.
625.

Which one of the following creatures has maximum number of ribs ?

A. Crocodile
B. Snake
C. Ray fish
D. Flying mammal
Answer» C. Ray fish
626.

Which one of the following animals is called farmer s friend ?

A. Ant
B. Earthworm
C. Bee
D. Butterfly
Answer» C. Bee
627.

Which one of the following is not a vaccine ?

A. BCG
B. Anti-rabies
C. Polio vaccine
D. Progesterone
Answer» E.
628.

A universal recipient has the blood group

A. B
B. AB
C. A
D. O
Answer» C. A
629.

A cellulosic wall is found in the cells of

A. animals
B. bacteria
C. fungi
D. plants
Answer» E.
630.

The term GM food refers to the food

A. that grows under genetic measures
B. that is genetically modified
C. that grows under geographical modification
D.
E. with greater glucose metabolism
Answer» C. that grows under geographical modification
631.

Some viruses have RNA but no DNA. This would indicate that

A. these viruses cannot replicate
B. these viruses have no heritable information
C. RNA transmits the hereditary information in these viruses
D. their nucleic acids can be crystallised
Answer» C. RNA transmits the hereditary information in these viruses
632.

The vitamin that helps in blood clotting is

A. Vitamin C
B. Vitamin D
C. Vitamin E
D. Vitamin K
Answer» E.
633.

Which of the following is correct about cold blooded animals ?

A. Their blood remains cold all the time
B.
C. Their body temperature changes in accordance with the atmosphere
D. Their body temperature remains constant all the time
E. They kill all the animals they come across
Answer» C. Their body temperature changes in accordance with the atmosphere
634.

Which is the anti-coagulant substance in blood?

A. Fibrinogen
B. Heparin
C. Thrombin
D. Globin
Answer» C. Thrombin
635.

The disease that is caused by virus is

A. Typhoid
B. Cholera
C. Common Cold
D. Tetanus
Answer» D. Tetanus
636.

The number of chambers in a human heart is

A. Four
B. Two
C.
D. Three
E. Five
Answer» B. Two
637.

The metal, which is a constituent of vitamin B

A. Iron
B. Magnesium
C. Zinc
D. Cobalt
Answer» E.
638.

The filtration unit of kidney is

A. axon
B. nephron
C. neuron
D. yellow fiber
Answer» C. neuron
639.

Accupuncture is

A. a disease of heart
B. servicing of tubes and tyres
C. a treatment method with needles
D. a crop culture
Answer» D. a crop culture
640.

The branch of biology dealing with the study of cells is known as

A. Cytology
B. Histology
C. Psychology
D. Physiology
Answer» B. Histology
641.

The study of visceral organs is

A. Angiology
B. Arthrology
C. Anthrology
D. Splanchnology
Answer» E.
642.

The enzyme in whose presence glucose and fructose are converted into alcohol is

A. Diastase
B. Maltase
C. Invertase
D. Zymase
Answer» E.
643.

Olive Ridley is a famous

A. cricketer
B. turtle species
C. grass type vegetation
D. Another name for olive tree
Answer» C. grass type vegetation
644.

Lac, which is used as sealing wax is produced by

A. stem
B. root
C. insect
D. bird
Answer» D. bird
645.

Jonas Salk invented the vaccine for

A. Polio
B. Hepatitis
C. Typhoid
D. Cholera
Answer» B. Hepatitis
646.

The standard audible capacity of a healthy human being as per World Health Organi-sation is in the range of

A. 45-50 decibels
B. 200-250 decibels
C. 5-10 decibels
D. 2000-2500 decibels
Answer» D. 2000-2500 decibels
647.

Which of the following hormones is released in excess quantity during excitement ?

A. Cortisone
B. Serotonin
C. Adrenaline
D. Oestrogen
Answer» D. Oestrogen
648.

Which one of the following is a non-poisonous snake ?

A. Cobra
B. Dryophis
C. Elapes
D. Python
Answer» E.
649.

Scientific study of birds is known as

A. Limnology
B. Herpetology
C. Malacology
D. Ornithology
Answer» E.
650.

In man, the normal number of chromosomes is

A. 42
B. 44
C. 46
D. 48
Answer» D. 48