NEET · Biology · Digestion & Absorption doubts
14 doubts found
What does “Digestive enzymes” actually mean in Digestion & Absorption, and why does it matter for NEET?
amylase breaks starch, pepsin and trypsin break proteins, and lipase breaks fats — each in its own region.
I keep getting “Digestive enzymes” questions wrong in Digestion & Absorption. What's the trap?
thinking pepsin works in the mouth.
What does “Absorption” actually mean in Digestion & Absorption, and why does it matter for NEET?
digested nutrients are absorbed mainly in the small intestine, whose villi hugely increase surface area.
I keep getting “Absorption” questions wrong in Digestion & Absorption. What's the trap?
thinking most absorption happens in the stomach.
What does “Bile” actually mean in Digestion & Absorption, and why does it matter for NEET?
a liver secretion (stored in the gall bladder) that emulsifies fats into small droplets.
I keep getting “Bile” questions wrong in Digestion & Absorption. What's the trap?
calling bile a digestive enzyme.
What does “Peristalsis” actually mean in Digestion & Absorption, and why does it matter for NEET?
the wave-like muscular contractions that push food along the gut.
I keep getting “Peristalsis” questions wrong in Digestion & Absorption. What's the trap?
thinking gravity moves food through the gut.
What is the difference between villi and microvilli?
Villi are finger-like folds of the intestinal wall; microvilli are much smaller projections on each villus cell — together they maximise absorption area.
What is the difference between pepsin and trypsin?
Pepsin digests protein in the acidic stomach; trypsin digests protein in the alkaline small intestine.
What is the difference between mechanical digestion and chemical digestion?
Mechanical digestion physically breaks food (chewing, churning); chemical digestion uses enzymes to break molecular bonds.
How is Digestion & Absorption tested in NEET, and what should I focus on?
Prioritise the core ideas: Digestive enzymes, Absorption, Bile.
What are the most common mistakes students make in Digestion & Absorption?
bile is an emulsifier that breaks fat into droplets; it contains no digestive enzymes.
How do I revise Digestion & Absorption quickly before the exam?
One-page summary of Digestive enzymes, Absorption, Bile, then timed previous-year questions.