1. Hemolysis is-
a) Breakdown of RBC
b) Breakdown of WBC
c) Breakdown of Platelet
d) A process of blood purification
Answer: Breakdown of RBC
2. Helps in maturation of RBC-
a) Vitamin C
b) Vitamin E
c) Vitamin B12
d) Vitamin B1
Answer: Vitamin B12
3. Genotype of O blood group-
a) OO
b) AO
c) BB
d) AA
Answer: OO
4. Causes of Bell's Palsy-
a) Glossopharyngeal Nerve
b) Hypoglossal Nerve
c) Vagus Nerve
d) Facial Nerve
Answer: Facial Nerve
5. Which of the following is the outermost covering layer of the meninges?
a) Subarachnoid mater
b) Dura mater
c) Arachnoid mater
d) Pia mater
Answer: Dura mater
Explanation: Option-2 (Dura mater): This is the correct answer because it is the thickest, toughest, and outermost layer of the meninges. It sits directly beneath the skull bone to act as a heavy-duty protective shield for the brain and spinal cord
6. What is the normal, healthy color of cerebrospinal fluid (CSF)?
a) Bright red
b) Milky white
c) Clear and colorless
d) Straw-yellow
Answer: Clear and colorless
Explanation: ✅ Clear and colorless: Normal CSF looks exactly like clear water. Any deviation indicates a medical issue. ❌ Straw-yellow: This color (xanthochromia) is abnormal. It usually means there is old blood breakdown from a past brain bleed or very high protein levels. ❌ Milky white: A cloudy or milky appearance is abnormal. It indicates an active bacterial infection (meningitis) due to the presence of pus and white blood cells. ❌ Bright red: A red or pink tint is abnormal. It signals fresh bleeding in the brain space (like a subarachnoid hemorrhage) or a nicked blood vessel during the spinal tap procedure.
7. Which lobe of the brain contains the primary visual cortex (visual center)?
a) Frontal lobe
b) Parietal lobe
c) Temporal lobe
d) Occipital lobe
Answer: Occipital lobe
Explanation: ✅ Occipital lobe: Located at the very back of the brain. It houses the primary visual cortex, which processes images, color, shape, and recognition from the eyes. ❌ Frontal lobe: Located at the front. It handles decision-making, reasoning, motor control, and expressive language, not vision. ❌ Parietal lobe: Located at the top-middle. It processes sensory information like touch, pressure, spatial awareness, and temperature. ❌ Temporal lobe: Located at the sides (near ears). It manages hearing, memory, and language comprehension.
8. Which gland secrets Epinephrine?
a) Adrenal Medulla
b) Adrenal Cortex
c) Thyroid Gland
d) Thymus
Answer: Adrenal Medulla
9. A 62-year-old patient with severe chronic obstructive pulmonary disease (COPD) presents with confusion, lethargy, and a bounding pulse. An arterial blood gas (ABG) analysis confirms severe hypercapnia. Which of the following physiological changes occurs as a direct compensatory response to this acute state?
a) Intracellular shift of potassium ions causing acute hypokalemia
b) Rightward shift of the oxyhemoglobin dissociation curve (Bohr effect)
c) Renal excretion of bicarbonate (HCO₃⁻) ions within minutes
d) Decreased minute ventilation via peripheral chemoreceptor inhibition
Answer: Rightward shift of the oxyhemoglobin dissociation curve (Bohr effect)
Explanation: Rightward shift of the oxyhemoglobin dissociation curve: Hypercapnia increases blood carbon dioxide (CO₂), which lowers pH (acidosis). This high CO₂ and hydrogen ion concentration binds to hemoglobin, decreasing its oxygen affinity and shifting the curve to the right to help unload oxygen to tissues.
10. Which part of digestive system makes/produces vit-k & vitB12
a) Duodenum
b) Large intestine
c) Small intestine
d) Stomach
Answer: Large intestine
11. Bile is necessary for the absorption of-
a) Vit-k
b) Vit-B12
c) Fats and fat soluble vitamins
d) a & C
Answer: a & C
Explanation: ✅ B) Fats and fat-soluble vitamins: Bile acts like a soap or detergent. It breaks down large fat droplets into tiny droplets (emulsification). This allows the body to absorb fats and fat-soluble vitamins (Vitamins A, D, E, and K).
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12. Excretory organs of human body-
a) Stomach
b) Intestine
c) Bones
d) Blood
Answer: Intestine
13. Which part of kidney controls acid-base balance?
a) Glomerulus
b) Loop of henle
c) Proximal convoluted tubules
d) Distal convoluted tubules
Answer: Proximal convoluted tubules
14. Cowper's glands (also known as bulbourethral glands) are found in which body system?
a) Female reproductive system
b) Integumentary system
c) Male reproductive system
d) Digestive gland
Answer: Male reproductive system
15. Where is conjugated bilirubin produced in the human body?
a) Spleen
b) Thymus
c) Liver
d) Gall bladder
Answer: Liver
16. Refractory media of eye-
a) Aqueous humour
b) Vitreous humour
c) Cornea
d) All
Answer: All
17. In myopia
a) Using concave lens
b) Using convex lens
c) Using bifocal lens
d) Using cylindrical lens
Answer: Using concave lens
18. Which of the following structures serves as the primary organ for hearing?
a) Utriculus
b) Duct of cochlea
c) Vestibule
d) Sacculus
Answer: Duct of cochlea
19. Hammer shaped bone-
a) Malleus
b) Incus
c) Stapes
d) Clavicle
Answer: Malleus
20. Number of milk teeth-
a) 18
b) 20
c) 22
d) 28
Answer: 20
