Explore topic-wise MCQs in Biology.

This section includes 256 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

1.

Quter coating of a capsule is made up of

A. Protein
B. Calcium carbonate
C. Cellulose
D. Starch
Answer» E.
Discussion
2.

Match List-I with List-II and select the correct answer using the codes given below
List-I (Disease)List-II (Part of human body)
F Conjunctivitis1.Eye
G Dermatitis2.Joints
H Gout3.Skin
J Meningitis4.Spinal cord
Codes
F G H J
A. 2413
B. 1324
C. 2314
D. 1423
A. A.
B. B.
C. C.
D. D.
Answer» C. C.
Discussion
3.

Consider the following statements
1. Femur is the longest bone in the human body
2. Cholera is a disease caused by bacteria
3. Atheltte's foot is a disease caused by virus
Which of the statement given above are correct?

A. 1 and 2
B. 2 and 3
C. 1 and 3
D. 1, 2 and 3
Answer» B. 2 and 3
Discussion
4.

Match List-I With List-II
List-IList-II
F EEG1.Muscles
G ECG2.Eye
H EOG3.Brain
J EMG4.Heart
Answer the above question using codesCode
F G H J
A. 1234
B. 3431
C. 1431
D. 4321
A. A.
B. B.
C. C.
D. D.
Answer» C. C.
Discussion
5.

Match List-I (Disease) with List-II (Deficiency causing them) using the code given below the list
List-IList-II
F Rickets1.Vitamin D
G Beriberi2.Vitamin B12
H Night blindness3.Vitamin A
J Scurvy4.Vitamin C
Code
F G H J
A. 1234
B. 4231
C. 3214
D. 4321
A. A.
B. B.
C. C.
D. D.
Answer» B. B.
Discussion
6.

Match List-I with List-II and select the correct answer using the codes given below
List-I (Institute)List-II(Location)
F National institute of immunology1.Pune
G National centre for cell science2.Manesar12
H Centre for DNA finger printing3.Hydrabad
J National Brain Research Centre4.New Delhi
Codes
F G H J
A. 2314
B. 4132
C. 4312
D. 2134
A. A.
B. B.
C. C.
D. D.
Answer» C. C.
Discussion
7.

Match List-I with List-II and select the correct answer using the codes given below
List-IList-II
F Malaria1.Bone marrow
G Filaria2.Brain
H Encephalitis3.Muscle
J Leukaemia4.Lymph node
5. Blood cells
Codes
F G H J
A. 5321
B. 5421
C. 4351
D. 5412
A. A.
B. B.
C. C.
D. D.
Answer» C. C.
Discussion
8.

Match List-I with List-II and select the correct answer using the codes given below
List-IList-II
F Malaria1.Fungi
G Poliomyelitis2.Bacteria
H Tuberculosis3.Virus
J Ring worm4.Protozoa
Codes
F G H J
A. 4321
B. 4312
C. 3412
D. 3421
A. A.
B. B.
C. C.
D. D.
Answer» B. B.
Discussion
9.

Enzymes are made up pf

A. carbohydrates
B. Edible proteins
C. Proteins with specific structure
D. None of these
Answer» D. None of these
Discussion
10.

What causes the mottling of the dental enamel?

A. High levels of chlorine in the water
B. High levels of nitrate in the water
C. High levels of floride in the water
D. High levels of calcium in the water
Answer» D. High levels of calcium in the water
Discussion
11.

Consider the following statements
1. Elisa test is employed as the first and most basic test for an individual to detect cancer.
2. Almost 50% of human beings have Rh+ blood while the remaining have Rh- blood.
Which of the statement(s) given above is/are correct?

A. 1 only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2
Answer» E.
Discussion
12.

Match List-I (Disease) with List-II (Cauative organism) and select the correct answer using the codes given below
List-(Disese)List-II (Causativ organism)
F Cholera1.Mycobacerium
G Influenza2.Myxovirus
H Tuberculosis3.Salmonella
J Typhoid4.Vibrio
Code
F G H J
A. 3124
B. 3214
C. 4123
D. 4213
A. A.
B. B.
C. C.
D. D.
Answer» E.
Discussion
13.

Match List-I with List-II and select the correct answer using the codes given below
List-I(Disese)List-II (Diagnosis)
F AIDS1.Widal test
G Plague2.Wayson stain test
H Typhoid3.Elisa test
4.Mantoux text
Code
F G H J
A. 4322
B. 3211
C. 1233
D. 3244
A. A.
B. B.
C. C.
D. D.
Answer» C. C.
Discussion
14.

Vitamin E is important for

A. Development to teeth
B. For the metabolism of carbohydrate
C. For the normal function of reproductive system
D. For the normal health of epithelial membrane
Answer» D. For the normal health of epithelial membrane
Discussion
15.

Metastasis is the process by which

A. Cell divide rapidly under the influence of drugs
B. Cancer cell spread through the blood or lymphatic system to other site or organs
C. The chromosome in cell nuclei are attached to the spindle before moving to the anaphase poles
D. Cancer cells are successfully inhibited to divide any further
Answer» C. The chromosome in cell nuclei are attached to the spindle before moving to the anaphase poles
Discussion
16.

Consumption of fish is considered to be healthy compared to flesh of other animals because fish contain

A. Polyunsaturated fatty acids
B. Saturated fatty acid
C. Essential vitamins
D. More carbohydrate and proteins
Answer» B. Saturated fatty acid
Discussion
17.

A small pouch containing silica gel, is often found in bottles of medicine in tablet or powder form because silica gel

A. Kill Bacteria
B. Kill germs and spores
C. Absorb moisture
D. Absorbs all gas present inside the bottle
Answer» D. Absorbs all gas present inside the bottle
Discussion
18.

Consider the following statement
1. Dengue is a protozoan disease transmitted by mosquito
2. Retro-orbital pain is not a symptom of dengue
3. Skin rash and bleeding from nose and gums are some of the symptoms of dengue.
Which of the statement given above is/are crrect?

A. 1 and 2
B. 3 only
C. 2 only
D. 1 and 3
Answer» C. 2 only
Discussion
19.

Consider the following statement
AIDS is transmitted
1. By sexual intercourse
2. By blood transfusion
3. By mosquitoes and other blood sucking insects
4. Acorss the placenta
Codes

A. 1, 2 and 3 are correct
B. 1, 2 and 4 correct
C. 1,3 and 4 are correct
D. 1 and 3 are correct
Answer» C. 1,3 and 4 are correct
Discussion
20.

Which one of the following statements regarding starch and cellulose is not correct

A. Both of them are of plant origin
B. Both of them are polymer
C. Both of them given colour with iodine
D. Both of them are made up of glucose molecules
Answer» D. Both of them are made up of glucose molecules
Discussion
21.

Jaundice in human beings is the result of

A. Incomplete metabolism of bilverdin
B. Complete metabolism of biliverdin
C. Incomplete metabolism of bilirubin
D. Complete metabolism of bilirubin
Answer» D. Complete metabolism of bilirubin
Discussion
22.

Consider the following conditions of a sick human body
1. Swollen lymph nodes
2. Sweating at night
3. Loss of memory
4. Loss of weight
Which of these are symptoms of AIDS

A. 1 and 2
B. 2, 3 and 4
C. 1, 3 and 4
D. 1, 2, 3 and 4
Answer» E.
Discussion
23.

Carote is the good source of

A. Vitamin A
B. Vitamin C
C. Vitamin D
D. Vitamin E
Answer» B. Vitamin C
Discussion
24.

How much protein a working woman must intake everyday?

A. 30 g
B. 37 g
C. 40 g
D. 45 g
Answer» E.
Discussion
25.

Which of the following organ is affected in jaundice

A. Pancrease
B. Stomach
C. Liver
D. Small intestine
Answer» D. Small intestine
Discussion
26.

White lung disease is prevalent among the worker of

A. Paper Industry
B. Cement Industry
C. Cotton Industry
D. Pesticide Industry
Answer» D. Pesticide Industry
Discussion
27.

Which of the following mineral is essential for controling heart beat

A. Sodium
B. Sulphur
C. Bromine
D. Iodine
Answer» E.
Discussion
28.

Which of the following vitamin is essential for the coagulation of blood?

A. Vitamin A
B. Vitamin B
C. Vitamin K
D. Vitamin D
Answer» D. Vitamin D
Discussion
29.

Ergotism is due to consumption of

A. Contaminated grains
B. Rotting vegetables
C. Contaminated water
D. Safe cooked food
Answer» B. Rotting vegetables
Discussion
30.

Which one of the following disease is caused by bacteria and spread though faecal matter by houseflies?

A. Pertusiss
B. Typhoid
C. Diphtheria
D. Chicken pox
Answer» C. Diphtheria
Discussion
31.

Enzymes are mainly

A. Carbohydrate
B. Protein
C. Lipids
D. Amino acid
Answer» C. Lipids
Discussion
32.

Water percentage in plasma is

A. 60%
B. 70%
C. 80%
D. 90%
Answer» E.
Discussion
33.

Contaminated water can cause the following diseases except which one of the following?

A. Hepatitis A
B. Typhoid
C. Measles
D. Cholera
Answer» D. Cholera
Discussion
34.

Daily intake of proteins, recommended for a moderately active women is

A. 30 gram
B. 37 gram
C. 40 gram
D. 46 gram
Answer» E.
Discussion
35.

Which one of the following disease is caused by bacteria?

A. Chicken pox
B. Poliomyelitis
C. Influenza
D. Tuberculosis
Answer» E.
Discussion
36.

Which of following is involved in controlling blood sugar level

A. Pitcitary gland
B. Islets of langerhans
C. Hypothalmus
D. Spleen
Answer» C. Hypothalmus
Discussion
37.

Among following food item which one has highest amount of carbohydrate ?

A. Apple
B. Beans
C. Cabbage
D. Banana
Answer» E.
Discussion
38.

What does protein deficiency in children usually between the age of 1 to 3 year cause?

A. Anemia
B. Goitre
C. Kwashiorkor
D. Xeropithalmia
Answer» D. Xeropithalmia
Discussion
39.

Among following which one is the highest source of ascorbic acid?

A. Apple
B. Bean
C. Carrot
D. Guava
Answer» E.
Discussion
40.

Consider the following statements
1. Caffine, a constituent of tea and coffee is a diuretic
2. Citric acid is used in soft drink
3. Ascorbic acid is essential for formation of bones and teeth
4. Citric acid is good substitution of ascorbic acid in our nutrition
Which of the statement given above are correct?

A. 1 and 2
B. 1,2 and 3 only
C. 3 and 4
D. 1,2,3 and 4
Answer» C. 3 and 4
Discussion
41.

Regular intake of fresh fruits and vegetables is recommended in the diet since they are a good source of antioxidants help a person to maintain health and promote longevity?

A. They activate the enzymes necessary for vitamin synthesis in the body and help prevent vitamin deficiency.
B. They prevent excessive oxidation of carbohydrates, fats and proteins in the body and help avoid unnecessary wastage of energy
C. They neutralize the free radicals produced in the body during metabolism
D. They activate certain genes in the cells of the body and help delay the ageing process
Answer» D. They activate certain genes in the cells of the body and help delay the ageing process
Discussion
42.

With reference to human nutrition consider the following statement
1. Bananas are richer source of carbohydrate than apples
2. Bananas contain some amount of protein also
3. Spinach has no protein at all
4. Potatoes are richer source of protein than peas
Which of these statement are correct?

A. 1 and 2
B. 2, 3, and 4
C. 1, 3, and 4
D. 1, 2, 3, and 4
Answer» B. 2, 3, and 4
Discussion
43.

It begins as a single cell and grows into a merciless disease that claims millions of lives year after year. But scientists are steadily unlocking its mysteries and the fight against it, may now have reached a dramatic turning point. Now discoveries promise better theropies and hope in the war against. The disease referred to in the above quotation is

A. Cancer
B. AIDS
C. Tuberculosis
D. Alzheimer's disease
Answer» B. AIDS
Discussion
44.

Due contraction of eyeball, a long sighted eye see only

A. Farther objects which is corrected by using convey lens
B. Farther objects which is corrected by using concave lens
C. Nearer objects which is corrected by using convey lens
D. Nearer objects which is corrected by using concave lens
Answer» B. Farther objects which is corrected by using concave lens
Discussion
45.

Who invented the vaccination for small pox

A. Sir Fredrick Grant Banting
B. Sir Alexander Fleming
C. Edward Jenner
D. Louis Pasteur
Answer» D. Louis Pasteur
Discussion
46.

Of the four land marks in medical history given below, which one was the first to take place

A. Organ transplant
B. By pass surgery
C. Test tube baby
D. Plastic surgery
Answer» E.
Discussion
47.

Which one of the following glands in human body enlarged due to goiter?

A. Adrenal cortex
B. Adrenal medulla
C. Pituitaru
D. Thyroid
Answer» E.
Discussion
48.

What is Catharisis?

A. A bird in New-Zealand
B. A wild animal
C. Emotional release
D. A character in Greek drama
Answer» D. A character in Greek drama
Discussion
49.

Virus of bird flue is also known as

A. NH 51
B. NH15
C. N1H5
D. N5H1
Answer» E.
Discussion
50.

Vaccination is available against all of the following disease except

A. Yellow fever
B. Typhoid fever
C. Malaria
D. Hepatits-b
Answer» D. Hepatits-b
Discussion