First 50

Question 1

The pancreas produces:

Answer 1

digestive enzymes and hormones.

Question 2

The liver converts excess glucose into:

Answer 2

b) Glycogen

Question 3

The stomach lining is protected from acid by:

Answer 3

b) Mucus

Question 4

The large intestine absorbs:

Answer 4

c) Water

Question 5

Lactose intolerance is due to the deficiency of:

Answer 5

b) Lactase

Question 6

Jaundice is caused due to the improper function of the:

Answer 6

a) Liver

Question 7

Acid reflux is caused by the malfunction of the:

Answer 7

a) Cardiac sphincter

Question 8

The disease caused by Vitamin C deficiency is:

Answer 8

b) Scurvy

Question 9

The total length of the human digestive tract is about:

Answer 9

c) 9 meters

Question 10

The function of the pyloric sphincter is to:

Answer 10

b) Prevent backflow from small intestine

Question 11

The hormone that stimulates gastric juice secretion is:

Answer 11

a) Gastrin

Question 12

Which organ is not directly involved in digestion?

Answer 12

c) Heart

Question 13

Protozoans are included in which kingdom?

Answer 13

b) Protista

Question 14

Which protozoan causes malaria?

Answer 14

b) Plasmodium

Question 15

Which phylum includes the simplest animals?

Answer 15

a) Porifera

Question 16

An example of a non-chordate is:

Answer 16

c) Earthworm

Question 17

The characteristic feature of phylum Echinodermata is:

Answer 17

c) Water vascular system

Question 18

Which of the following belongs to phylum Mollusca?

Answer 18

b) Octopus

Question 19

The largest phylum in the animal kingdom is:

Answer 19

c) Arthropoda

Question 20

The notochord is a characteristic feature of:

Answer 20

c) Chordates

Question 21

Fishes breathe through:

Answer 21

b) Gills

Question 22

Amphibians have:

Answer 22

c) Moist skin

Question 23

Reptiles are:

Answer 23

b) Cold-blooded

Question 24

Which of the following is oviparous?

Answer 24

c) Lizard

Question 25

Birds have:

Answer 25

a) Four-chambered heart

Question 26

Mammals are characterized by the presence of:

Answer 26

b) Mammary glands

Question 27

Which is an egg-laying mammal?

Answer 27

c) Platypus

Question 28

Which of the following is a flightless bird?

Answer 28

a) Penguin

Question 29

The basic structural and functional unit of life is:

Answer 29

b) Cell

Question 30

The largest organ in the human body is:

Answer 30

d) Skin

Question 31

The powerhouse of the cell is:

Answer 31

b) Mitochondria

Question 32

The longest bone in the human body is:

Answer 32

a) Femur

Question 33

The main function of red blood cells is:

Answer 33

b) Oxygen transport

Question 34

The oxygen-carrying pigment in RBCs is:

Answer 34

b) Hemoglobin

Question 35

The process of breathing is regulated by:

Answer 35

a) Brainstem

Question 36

Which of the following is an exocrine gland?

Answer 36

c) Pancreas

Question 37

The primary function of the kidneys is:

Answer 37

b) Filtration of blood

Question 38

Which part of the brain controls voluntary movements?

Answer 38

a) Cerebrum

Question 39

The hormone responsible for regulating blood sugar is:

Answer 39

a) Insulin

Question 40

The functional unit of the kidney is:

Answer 40

a) Nephron

Question 41

The muscle responsible for breathing is:

Answer 41

b) Diaphragm

Question 42

The blood group known as the universal donor is:

Answer 42

d) O

Question 43

The human heart has how many chambers?

Answer 43

c) 4

Question 44

The part of the eye responsible for vision in dim light is:

Answer 44

b) Rods

Question 45

Which of the following is a connective tissue?

Answer 45

c) Blood

Question 46

The enzyme responsible for digestion of proteins in the stomach is:

Answer 46

c) Pepsin

Question 47

Which of the following is not part of the central nervous system?

Answer 47

c) Nerves

Question 48

The part of the ear that helps maintain balance is:

Answer 48

b) Semicircular canals

Question 49

The function of hemoglobin in the blood is to:

Answer 49

c) Carry oxygen

Question 50

The process by which white blood cells engulf bacteria is called:

Answer 50

b) Phagocytosis

Question 51

Which part of the digestive system absorbs most of the nutrients?

Answer 51

c) Small intestine

Question 52

The hormone responsible for female secondary sexual characteristics is:

Answer 52

b) Estrogen

Question 53

The largest artery in the human body is:

Answer 53

b) Aorta

Question 54

The human body has how many pairs of ribs?

Answer 54

b) 12

Question 55

Who is known as the 'Father of Evolution'?

Answer 55

b) Charles Darwin

Question 56

The five-kingdom classification was given by:

Answer 56

b) Whittaker

Question 57

Homologous structures indicate:

Answer 57

b) Divergent evolution

Question 58

The first life forms on Earth were:

Answer 58

b) Bacteria

Question 59

The theory of natural selection was proposed in the book:

Answer 59

a) Origin of Species

Question 60

Vestigial organs are:

Answer 60

d) Organs lost in evolution but still present

Question 61

The modern system of classification is based on:

Answer 61

c) Phylogeny

Question 62

Binomial nomenclature was introduced by:

Answer 62

b) Linnaeus