- 1. What is the powerhouse of the cell?
A) Ribosome
B) Endoplasmic reticulum
C) Mitochondria
D) Nucleus
- 2. Which part of the brain is responsible for regulating body temperature and some emotional responses?
A) Hypothalamus
B) Cerebellum
C) Occipital lobe
D) Frontal lobe
- 3. What is the largest organ in the human body?
A) Lungs
B) Skin
C) Liver
D) Heart
- 4. Which blood type is known as the 'universal recipient'?
A) A
B) O
C) B
D) AB
- 5. What is the smallest bone in the human body?
A) Stapes
B) Radius
C) Humerus
D) Femur
- 6. Which type of muscle is voluntary and can be consciously controlled?
A) Skeletal
B) Smooth
C) Involuntary
D) Cardiac
- 7. In which organ are red blood cells produced?
A) Kidney
B) Liver
C) Bone marrow
D) Spleen
- 8. What is responsible for carrying oxygen in the bloodstream?
A) Leukocytes
B) Hemoglobin
C) Platelets
D) Plasma
- 9. Which part of the eye contains cells that are sensitive to light?
A) Lens
B) Cornea
C) Retina
D) Pupil
- 10. Which gland regulates metabolism in the human body?
A) Thyroid
B) Pancreas
C) Adrenal
D) Pituitary
- 11. What liquid is produced in the stomach to help with digestion?
A) Mucus
B) Gastric acid
C) Bile
D) Saliva
- 12. Which organ stores bile produced by the liver?
A) Spleen
B) Kidney
C) Gallbladder
D) Pancreas
- 13. Which mineral is important for maintaining strong bones and teeth?
A) Iron
B) Sodium
C) Calcium
D) Potassium
- 14. What is the technical term for the voice box?
A) Larynx
B) Trachea
C) Thyroid
D) Pharynx
- 15. Which part of the ear is responsible for hearing and balance?
A) Middle ear
B) Outer ear
C) Eardrum
D) Inner ear
- 16. What is the body's largest joint?
A) Elbow
B) Shoulder
C) Ankle
D) Knee
- 17. Which vitamin is synthesized by the skin when exposed to sunlight?
A) Vitamin C
B) Vitamin A
C) Vitamin B12
D) Vitamin D
- 18. What is the fluid that lubricates the joints in the human body?
A) Synovial fluid
B) Cerebrospinal fluid
C) Interstitial fluid
D) Amniotic fluid
- 19. What is the body's main source of energy?
A) Protein
B) Fat
C) Glucose
D) Vitamins
- 20. What is the name of the airway that connects the throat to the lungs?
A) Bronchus
B) Esophagus
C) Trachea
D) Diaphragm
- 21. What is the body's largest internal organ?
A) Lungs
B) Liver
C) Intestines
D) Stomach
- 22. Where are memories and emotions processed in the brain?
A) Cerebellum
B) Cerebrospinal fluid
C) Pons
D) Limbic system
- 23. Which organ in the human body is responsible for pumping blood?
A) Liver
B) Brain
C) Heart
D) Lungs
- 24. Which part of the brain is responsible for motor control, balance, and coordination?
A) Cerebrum
B) Hippocampus
C) Thalamus
D) Cerebellum
- 25. Which type of muscle is involuntary and found in the walls of internal organs?
A) Smooth muscle
B) Cardiac muscle
C) Skeletal muscle
D) Tendon
- 26. What is the role of red blood cells in the body?
A) Digest food
B) Fight infections
C) Produce bile
D) Carry oxygen to tissues and remove carbon dioxide
- 27. Which structure in the ear is responsible for detecting sound waves?
A) Incus
B) Tympanic membrane
C) Eustachian tube
D) Cochlea
- 28. What part of the human body is affected by osteoarthritis?
A) Lungs
B) Joints
C) Brain
D) Kidneys
- 29. What is the purpose of the respiratory system?
A) To digest food
B) To regulate body temperature
C) To pump blood to the rest of the body
D) To facilitate the exchange of oxygen and carbon dioxide in the body
- 30. Which part of the human body is primarily affected by Parkinson's disease?
A) Brain
B) Skin
C) Kidneys
D) Eyes
- 31. What is the function of the adrenal glands in the human body?
A) Filter waste from the blood
B) Help regulate blood sugar levels
C) Aid in digestion
D) Produce hormones like cortisol and adrenaline in response to stress
- 32. Which part of the human body is affected by appendicitis?
A) Liver
B) Appendix
C) Brain
D) Lungs
- 33. What is the purpose of the cochlea in the ear?
A) Maintain equal air pressure
B) Regulate balance
C) Convert sound vibrations into electrical signals for the brain to interpret
D) Filter out harmful noises
- 34. How many bones do adult humans have?
A) 206
B) 210
C) 220
D) 204
- 35. Which blood type is known as the universal donor type?
A) O-
B) B-
C) AB+
D) A+
- 36. How many chambers are there in the human heart?
A) 3
B) 5
C) 2
D) 4
- 37. Which organ in the human body is responsible for filtering blood?
A) Kidneys
B) Spleen
C) Lungs
D) Liver
- 38. What is the longest bone in the human body?
A) Femur
B) Radius
C) Humerus
D) Tibia
- 39. Where does digestion begin in the human body?
A) Stomach
B) Liver
C) Mouth
D) Small Intestine
- 40. Which substance gives skin its pigmentation or color?
A) Elastin
B) Collagen
C) Melanin
D) Keratin
- 41. What is the main function of the gallbladder?
A) Store Bile
B) Filter Blood
C) Digest Food
D) Produce Insulin
- 42. Which part of the human body produces insulin?
A) Stomach
B) Liver
C) Pancreas
D) Kidneys
- 43. Which enzyme is found in saliva and breaks down starches into sugars?
A) Trypsin
B) Pepsin
C) Amylase
D) Lipase
- 44. Which hormone regulates blood sugar levels?
A) Estrogen
B) Insulin
C) Cortisol
D) Testosterone
- 45. Which part of the brain controls involuntary functions like breathing and heart rate?
A) Hippocampus
B) Brainstem
C) Cerebrum
D) Thalamus
- 46. What is the deadliest type of skin cancer?
A) Melanoma
B) Squamous cell carcinoma
C) Kaposi's sarcoma
D) Basal cell carcinoma
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