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