A Set of Zoology-3
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A Set of Zoology-3
1. The structure that controls the entry of light into the human eye is:
a) Lens
b) Retina
c) Cornea
d) Pupil
2. The main function of the red blood cells is to:
a) Fight infection
b) Carry oxygen
c) Clot blood
d) Produce antibodies
3. The process by which plants lose water through their leaves is called:
a) Respiration
b) Transpiration
c) Evaporation
d) Condensation
4. The structure that produces insulin in humans is:
a) Liver
b) Stomach
c) Pancreas
d) Kidney
5. Which of the following is a characteristic of mammals?
a) They lay eggs
b) They have a backbone
c) They produce milk
d) They are cold-blooded
6. The human heart has how many chambers?
a) 2
b) 3
c) 4
d) 5
7. Which of the following is the functional unit of the kidney?
a) Alveolus
b) Glomerulus
c) Nephron
d) Tubule
8. The process of protein synthesis takes place in which part of the cell?
a) Mitochondria
b) Nucleus
c) Ribosomes
d) Cytoplasm
9. Which of the following is the site for gas exchange in the human body?
a) Bronchi
b) Alveoli
c) Trachea
d) Pharynx
10. The part of the brain responsible for maintaining balance and coordination is:
a) Cerebellum
b) Cerebrum
c) Medulla
d) Pons
11. The molecule that carries genetic information is:
a) RNA
b) DNA
c) Protein
d) Lipid
12. Which of the following organs is responsible for filtering blood in the human body?
a) Heart
b) Liver
c) Kidney
d) Lung
13. The cells responsible for carrying oxygen in the human body are:
a) White blood cells
b) Red blood cells
c) Platelets
d) Nerve cells
14. The basic unit of heredity is:
a) Chromosome
b) Gene
c) DNA
d) Protein
15. Which of the following is the largest gland in the human body?
a) Liver
b) Pancreas
c) Pituitary
d) Thyroid
16. Which of the following is true about amphibians?
a) They are cold-blooded
b) They have a three-chambered heart
c) They are viviparous
d) They breathe only through gills
17. The process of cell division in which the chromosome number is halved is called:
a) Mitosis
b) Meiosis
c) Fertilization
d) Binary fission
18. The structure that connects muscles to bones is called:
a) Ligament
b) Tendon
c) Cartilage
d) Joint
19. The central nervous system consists of the:
a) Brain and spinal cord
b) Brain and heart
c) Spinal cord and nerves
d) Brain and muscles
20. Which of the following is the correct sequence of the digestive system in humans?
a) Mouth → Stomach → Small intestine → Large intestine
b) Mouth → Small intestine → Stomach → Large intestine
c) Stomach → Small intestine → Mouth → Large intestine
d) Mouth → Small intestine → Large intestine → Stomach
21. The cells responsible for immune response in the human body are:
a) Red blood cells
b) White blood cells
c) Platelets
d) Erythrocytes
22. The part of the nervous system that controls involuntary actions like heart rate is the:
a) Central nervous system
b) Sympathetic nervous system
c) Parasympathetic nervous system
d) Autonomic nervous system
23. Which of the following animals is viviparous?
a) Frog
b) Lizard
c) Dolphin
d) Bird
24. The part of the cell responsible for energy production is the:
a) Nucleus
b) Mitochondria
c) Golgi apparatus
d) Endoplasmic reticulum
25. Which of the following is a function of the skeletal system?
a) Protects vital organs
b) Produces hormones
c) Transports oxygen
d) Regulates temperature
26. Which of the following is an example of an exoskeleton?
a) Human bones
b) Crab shell
c) Fish scales
d) Human teeth
27. Which of the following is a function of the lymphatic system?
a) Transportation of oxygen
b) Transport of nutrients
c) Removal of waste products
d) Fighting infections
28. The human body consists of how many bones in total?
a) 206
b) 270
c) 210
d) 206 at birth, but 270 in adults
29. Which of the following is responsible for the red color of blood?
a) White blood cells
b) Platelets
c) Hemoglobin
d) Plasma
30. The process by which a cell converts glucose into energy is called:
a) Photosynthesis
b) Cellular respiration
c) Glycolysis
d) Fermentation
31. The term "homeostasis" refers to:
a) Maintaining constant internal conditions
b) Growth and development
c) Energy production
d) External environment regulation
32. Which of the following is the main function of the lymphatic system?
a) Transport oxygen
b) Protect the body against infections
c) Regulate body temperature
d) Transport carbon dioxide
33. Which organ is responsible for regulating body temperature in humans?
a) Liver
b) Skin
c) Heart
d) Kidneys
34. Which type of blood vessel carries blood away from the heart?
a) Veins
b) Arteries
c) Capillaries
d) Lymphatic vessels
35. The enzyme that helps in breaking down starch in the mouth is:
a) Pepsin
b) Amylase
c) Lipase
d) Trypsin
36. The human body's largest lymphatic organ is the:
a) Lymph nodes
b) Thymus
c) Spleen
d) Liver
37. The movement of water across a semipermeable membrane is called:
a) Diffusion
b) Active transport
c) Osmosis
d) Filtration
38. The group of animals that includes insects, arachnids, and crustaceans is:
a) Arthropoda
b) Mollusca
c) Annelida
d) Chordata
39. The scientific study of the structure of organisms is known as:
a) Physiology
b) Morphology
c) Ecology
d) Cytology
40. The function of the immune system is to:
a) Regulate digestion
b) Transport oxygen
c) Fight infections
d) Produce hormones
Answer Key:
- d) Pupil
- b) Carry oxygen
- b) Transpiration
- c) Pancreas
- c) They produce milk
- c) 4
- c) Nephron
- c) Ribosomes
- b) Alveoli
- a) Cerebellum
- b) DNA
- c) Kidney
- b) Red blood cells
- b) Gene
- a) Liver
- a) They are cold-blooded
- b) Meiosis
- b) Tendon
- a) Brain and spinal cord
- a) Mouth → Stomach → Small intestine → Large intestine
- b) White blood cells
- d) Autonomic nervous system
- c) Dolphin
- b) Mitochondria
- a) Protects vital organs
- b) Crab shell
- d) Fighting infections
- a) 206
- c) Hemoglobin
- b) Cellular respiration
- a) Maintaining constant internal conditions
- b) Protect the body against infections
- b)Skin
34. b) Arteries
35. b) Amylase
36. c) Spleen
37. c) Osmosis
38. a) Arthropoda
39. b) Morphology
40. c) Fight infections
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