Human body systems, diseases and reproduction - Question Bank

1. The human body's defense system against pathogens is called the:
A) Digestive system
B) Nervous system
C) Immune system
D) Endocrine system
2. Which type of cell division is responsible for producing gametes?
A) Mitosis
B) Binary fission
C) Meiosis
D) Budding
3. The process of producing new individuals from existing ones is called:
A) Nutrition
B) Growth
C) Reproduction
D) Respiration
4. What is the name of the disease caused by the human immunodeficiency virus (HIV)?
A) Hepatitis
B) Malaria
C) AIDS
D) Tuberculosis
5. Which part of the brain is responsible for higher-level thinking, such as reasoning and problem-solving?
A) Cerebellum
B) Brainstem
C) Medulla oblongata
D) Cerebrum
6. The process of breathing in and out is known as:
A) Circulation
B) Respiration
C) Ventilation
D) Digestion
7. In human males, the primary reproductive organs are the:
A) Prostate glands
B) Seminal vesicles
C) Testes
D) Vas deferens
8. Which of the following is a protozoan disease?
A) Tuberculosis
B) Malaria
C) Influenza
D) Cholera
9. What is the primary function of the urinary system?
A) Transporting oxygen
B) Filtering waste products from the blood and producing urine
C) Digesting food
D) Regulating body temperature
10. Which hormone is produced by the adrenal glands and is involved in the 'fight or flight' response?
A) Insulin
B) Thyroxine
C) Adrenaline
D) Estrogen
11. The process of cell division that results in two identical daughter cells is called:
A) Meiosis
B) Mitosis
C) Fertilization
D) Mutation
12. Which disease is characterized by uncontrolled cell growth?
A) Diabetes
B) Hypertension
C) Cancer
D) Arthritis
13. What is the function of the skeletal system?
A) Producing antibodies
B) Supporting and protecting the body
C) Transporting nutrients
D) Digesting food
14. Which organ is known as the 'powerhouse' of the cell?
A) Nucleus
B) Ribosome
C) Mitochondrion
D) Endoplasmic reticulum
15. The process by which an embryo attaches to the uterine wall is called:
A) Fertilization
B) Ovulation
C) Implantation
D) Gestation
16. Which of the following is a sexually transmitted infection (STI)?
A) Tuberculosis
B) Malaria
C) Syphilis
D) Cholera
17. What is the main component of blood responsible for carrying oxygen?
A) White blood cells
B) Platelets
C) Plasma
D) Red blood cells
18. Which system is responsible for producing hormones that regulate various bodily functions?
A) Nervous system
B) Circulatory system
C) Endocrine system
D) Excretory system
19. The structure formed by the union of sperm and egg is called:
A) Embryo
B) Zygote
C) Fetus
D) Gamete
20. Which disease is caused by a lack of iodine in the diet?
A) Anemia
B) Diabetes
C) Goiter
D) Rickets
21. What is the primary role of the digestive system?
A) Transport oxygen
B) Break down food and absorb nutrients
C) Remove waste products
D) Regulate body temperature
22. Which part of the nervous system is responsible for coordinating voluntary movements and balance?
A) Cerebrum
B) Cerebellum
C) Brainstem
D) Spinal cord
23. The process of releasing a mature ovum from the ovary is called:
A) Fertilization
B) Implantation
C) Menstruation
D) Ovulation
24. Which of the following is a deficiency disease caused by lack of iron?
A) Scurvy
B) Anemia
C) Rickets
D) Goiter
25. What is the organ that produces bile, essential for digestion?
A) Stomach
B) Pancreas
C) Liver
D) Gallbladder
26. Which system provides a framework for the body and protects internal organs?
A) Muscular system
B) Nervous system
C) Skeletal system
D) Circulatory system
27. The period of development of a fetus inside the uterus is called:
A) Ovulation
B) Fertilization
C) Gestation
D) Implantation
28. Which disease affects the joints and causes pain and stiffness?
A) Osteoporosis
B) Arthritis
C) Anemia
D) Asthma
29. What is the role of white blood cells?
A) Transport oxygen
B) Clot blood
C) Defend the body against infection
D) Carry nutrients
30. Which part of the cell contains the genetic material (DNA)?
A) Cytoplasm
B) Cell membrane
C) Nucleus
D) Ribosome
31. The process by which food is broken down into simpler substances that can be absorbed by the body is called:
A) Circulation
B) Respiration
C) Digestion
D) Excretion
32. The female reproductive cell is called:
A) Sperm
B) Zygote
C) Ovum
D) Embryo
33. Which of these is NOT a communicable disease?
A) AIDS
B) Diabetes
C) Tuberculosis
D) Malaria
34. What is the main function of the lungs?
A) Digesting food
B) Pumping blood
C) Exchange of gases (oxygen and carbon dioxide)
D) Filtering waste
35. Which hormone is responsible for regulating blood sugar levels?
A) Thyroxine
B) Adrenaline
C) Insulin
D) Estrogen
36. The development of an embryo from a zygote is called:
A) Meiosis
B) Mitosis
C) Gestation
D) Fertilization
37. Which of the following is a bacterial disease?
A) Chickenpox
B) Measles
C) Pneumonia
D) Rabies
38. The brain is part of which human body system?
A) Endocrine system
B) Nervous system
C) Skeletal system
D) Muscular system
39. In human reproduction, fertilization typically occurs in the:
A) Uterus
B) Ovary
C) Fallopian tube
D) Vagina
40. Which disease is spread by the Aedes mosquito?
A) Malaria
B) Typhoid
C) Dengue
D) Tuberculosis
41. What is the primary function of red blood cells?
A) Fighting infection
B) Clotting blood
C) Transporting oxygen
D) Producing antibodies
42. Which system is responsible for transporting oxygen, nutrients, and hormones throughout the body?
A) Respiratory system
B) Digestive system
C) Circulatory system
D) Nervous system
43. The process of fusion of male and female gametes is known as:
A) Gestation
B) Ovulation
C) Fertilization
D) Implantation
44. A disease caused by a deficiency of Vitamin D is:
A) Scurvy
B) Night blindness
C) Rickets
D) Anemia
45. Which part of the human eye controls the amount of light entering it?
A) Retina
B) Cornea
C) Iris
D) Pupil
46. What is the largest organ of the human body?
A) Brain
B) Liver
C) Skin
D) Heart
47. The male reproductive cell is called:
A) Ovum
B) Sperm
C) Zygote
D) Embryo
48. Which of the following is a viral disease?
A) Tuberculosis
B) Malaria
C) Cholera
D) Influenza
49. The process by which plants make their own food using sunlight, water, and carbon dioxide is called:
A) Respiration
B) Transpiration
C) Photosynthesis
D) Fermentation
50. Which organ is primarily responsible for filtering blood and producing urine in the human body?
A) Liver
B) Heart
C) Kidneys
D) Lungs