Explore topic-wise MCQs in Biology.

This section includes 149 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

1.

The Short upper part of human intestine next to the stomach is called

A. Caecum
B. Duodenum
C. Ileum
D. Jejunum
Answer» C. Ileum
2.

Which is the largest living bird on earth?

A. Emu
B. Ostrich
C. Albatross
D. Siberian Crane
Answer» C. Albatross
3.

Bile is secreted by

A. Gall bladder
B. Liver
C. Bile duct
D. Pancrease
Answer» B. Liver
4.

Which one of the following is a rich source of energy?

A. Protein
B. Hipid
C. Carbohydrate
D. Vitamin
Answer» D. Vitamin
5.

Normal temperature of human body is

A. 40.5 C
B. 37 C
C. 97.4 C
D. 82.4 C
Answer» C. 97.4 C
6.

Part of eye used during eye donation is

A. Retina
B. Cornea
C. Eye hens
D. Complet eye
Answer» C. Eye hens
7.

The image formed on the retina of a human eye is

A. Virtual and inverted
B. Virual and erect
C. Real and erect
D. Real and inverted
Answer» E.
8.

Insuline was discovered by

A. F.Banting
B. Edward Jenner
C. Ronald Ross
D. Ferederick Sanger
Answer» E.
9.

A surge of which hormone stimulates ovulation in human females

A. Luteinizing harmone
B. Estrogen
C. Follicle stimulating harmone
D. Progesterone
Answer» B. Estrogen
10.

Consider the following
1. Cartilage
2. Blood
3. Neurons
Which of the above is/are connective tissues?

A. 2 only
B. 1 only
C. 1 and 2
D. 2 and 3
E. 1, 2 and 3
Answer» C. 1 and 2
11.

Which of the following is a female sex harmone?

A. Estrogen
B. Androgen
C. Auxin
D. Insulin
Answer» B. Androgen
12.

The Largest organ of human body is

A. Heart
B. Brain
C. Liver
D. Kidney
Answer» D. Kidney
13.

An individual whose blood type is B may in an emergency donate blood to a person whose blood type is

A. B or A
B. AB or A
C. A or O
D. AB or B
Answer» E.
14.

When we eat something we like, our mouth waters, This is actually not water but fluid secreted from

A. Masal gland
B. Oval epithelium
C. Salivary gland
D. Tongue
Answer» D. Tongue
15.

Cylindrical lens is used by a person suffering from

A. Astigmatism
B. Myopia
C. Hypermetropia
D. Presbyopia
Answer» B. Myopia
16.

Which one of the following pairs is not correctly matched?

A. Loop of Henele-Kidney
B. Fallopian tube-Female reproductive system
C. Epididymis-Male reproductive system
D. Cowpers gland-Intestine
Answer» E.
17.

Which of the following organs have its own wave of autonomic excitation?

A. Heart
B. Kidney
C. Liver
D. Intestine
Answer» B. Kidney
18.

Human stomach produces acid 'X' which helps in digestion of food. Acid 'X' is

A. Acetic acid
B. Methanoic acid
C. Hydrochloric acid
D. Citric acid
Answer» D. Citric acid
19.

Blood is a/an

A. Connective tissue
B. Epithelial tissue
C. Both of the above
D. None of above
Answer» B. Epithelial tissue
20.

Which one of the following is not an enzyme?

A. Ptyalin
B. Pepsin
C. Trypsin
D. Oxytocin
Answer» E.
21.

Main function of skeleton is

A. To cover the skull
B. To provide the shape of body
C. Formation of RBC
D. All of these
Answer» C. Formation of RBC
22.

Insulin is a kind of

A. Salt
B. Hormone
C. Enzyme
D. Vitamin
Answer» C. Enzyme
23.

Hormone insulin is a

A. Glycolipid
B. Fatty acid
C. Peptide
D. Sterol
Answer» D. Sterol
24.

Athletes with higher proportion of red fivers in their muscles are better equipped for which of the following>

A. Swimming
B. Sprint
C. Short activities
D. Shot put
Answer» B. Sprint
25.

Number of spinal nerve in human is

A. 10 pair
B. 12 pair
C. 15 pair
D. 31 pair
Answer» E.
26.

Which among following is the largest mammal?

A. Elephant
B. Whale
C. Dinosaur
D. Rhinoceros
Answer» C. Dinosaur
27.

Which one of the following organ have the capacity of regeneration?

A. Spleen
B. Kidney
C. Brain
D. Liver
Answer» E.
28.

Which of the following organ cannot be transplanted?

A. Kidney
B. Heart
C. Lung
D. Brain
Answer» E.
29.

Consider the following
1. All proteins are enzyme
2. All enzymes are protein
3. All enzymes are not protein
4. All proteins are not enzyme
Which of the above are correct?

A. 1 and 3 only
B. 2 and 4 only
C. 1, 2 and 3
D. 2, 3 and 4
Answer» C. 1, 2 and 3
30.

Which of one the following organs of the human body break down the old red blood cells and store iron from them?

A. Kidney
B. Gall bladder
C. Pancreas
D. Thyroid
Answer» E.
31.

Which of the following cell secret insulin

A. a-cell
B. s-cell
C. b-cell
D. Nerve cell
Answer» D. Nerve cell
32.

Number of muscles found in human body

A. 600
B. 630
C. 639
D. 653
Answer» D. 653
33.

Match List-I (Enzyme of digestive juice) with List-II (Food acted upon) and select the correct answer using the codes given below the lists
List-I (Enzyme of digestive juiceList-II (Food acted ipon)
F.Amylase1.Casein of milk
G.Lipase2.Fat
H.Rennin3.Starch
Codes
FGH
A.321
B.231
C.123
D.312

A. A.
B. B.
C. C.
D. D.
Answer» B. B.
34.

Assertion (A): The person with diabetes insipidus feel Thirsty.
Reason (R) : A person with diabetes insipidus suffers from exccess secretion vasopressin.
Codes

A. Both A and R are true and R is the correct explanation of A.
B. Both A and R are true but R is not a correct explanation of A.
C. A is true but R is false
D. A is false but R is true
Answer» D. A is false but R is true
35.

Assertion (A): All the proteins in our food are digested in small intestine only.
Reason (R): The protein digesting exzyme from pancreas are released into small intestine.
Codes

A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true but R is not a Correct explanation of A
C. A is true but R is false
D. A is false but R is true
Answer» E.
36.

With reference to the human body, consider the following statements
1. The production of somatotropin goes sup when a person exercises.
2. Men's testes produce progesterone.
3. Woman's adrenal glands secrete testosterone.
4. Stress causes the adrenals to release very less amount of cortisol than usual.
Which of these statements are correct

A. 1, 2, 3 and 4
B. 1, 2 and 3
C. 2, 3 and 4
D. 1 and 4
Answer» E.
37.

Alpha-Keratin is a protein, present in

A. Blood
B. Skin
C. Lymph
D. Egg
Answer» C. Lymph
38.

Consider the following statements
1. Heart is three chambered in fishes
2. Heart is four chambered in birds
3. All animal of class amphibia are characterised by two pairs of limbs
4. All reptiles of limbs
Which of these statements are correct?

A. 1, 2, 3 and 4
B. 1 and 3
C. 2 and 4
D. 2, 3 and 4
Answer» D. 2, 3 and 4
39.

Consider the following types of cells
1. Easinophil
2. Lymphocytes
3. Monocytes
4. Neutrophils
Which of the above are white blood corpuscles

A. 1 and 2
B. 1, 2 and 4
C. 3 and 4
D. 1, 2, 3 and 4
Answer» E.
40.

White blood cells act

A. As a defence against infection
B. As source of energy
C. For clotting of blood
D. As a medium for oxygen transport from lung to tissue
Answer» B. As source of energy
41.

Which part of the alimentary canal in human beings receives the secretions of liver and pancrease through a common duct?

A. Stomach
B. Duodenum
C. Junction of Jejunum and Ileum
D. Ileurm
Answer» C. Junction of Jejunum and Ileum
42.

With reference to the work of human kidney consider the following statements
(1) After the waste is removed in the kidney the clean blood is sent back through renal artery.
(2) From Bowmaws capsule, the filtered liquid passes through tiny tubes where much of the glucose is reabsorbed and sent back to the blood in the renal vein.
Which of these statements is/ are correct?

A. Only 1
B. Only 2
C. Both 1 and 2
D. Neither 1 nor 2
Answer» C. Both 1 and 2
43.

In human, hymphocytes are formed in

A. Liver
B. bone marrow
C. Pancrease
D. Spleen
Answer» E.
44.

Harmone insulin is a

A. Glycolipid
B. Fatty acid
C. Peptide
D. Sterol
Answer» D. Sterol
45.

Colour of skin depand on

A. Enzyme
B. Harmones
C. Epidermis
D. Melanin
Answer» E.
46.

Which of the following is a vestigeal organ?

A. Diaphram
B. Centriole
C. Appendix
D. Molar teeth
Answer» D. Molar teeth
47.

Upper most layer of skin is called?

A. Epidermis
B. Protodermis
C. Dermis
D. None of these
Answer» B. Protodermis
48.

In the human body, cowper's glands form a part of which one of following?

A. Digestive system
B. Endocrine system
C. Reproductive system
D. Nervous system
Answer» D. Nervous system
49.

Largest organ of human body is

A. Brain
B. Heart
C. Skin
D. Liver
Answer» D. Liver
50.

By EEG we can observe the activity in

A. Heart
B. Hung
C. Brain
D. Muscles
Answer» D. Muscles