Biology Class 11 Chapter 12 - Nutrition - Part 8

Biology Class 11 Chapter 12 - Nutrition - Part 8

1. Pepsin

a) An elastic muscular bag that stores the food.
b) Needs alkaline medium
c) Regulated by smell, sight and quality of food
d) Needs acidic medium

2. The enfolding of villi and microvilli increases the surface area for __________.

a) Constipation
b) Absorption
c) Gravity
d) Cardiac sphincter

3. Pepsinogen is activated to pepsin by:

a) HCl
b) Active secretin
c) Gastrin
d) HCl and active pepsin

4. Small intestine

a) No upper incisors
b) A waste product of amino acid metabolism
c) Absorbed into the blood stream
d) Consists of duodenum, Jejunum and Ileum

5. Secretion of gastric Juice

a) Stimulates the pancreas, liver duodenal cells
b) Regulated by smell, sight and quality of food
c) Needs alkaline medium
d) Needs alkaline medium

6. The animals having structurally and functionally intermediate teeth between herbivores and carnivores are:

a) Omnivores
b) Saprozoic
c) Detritivores
d) Insectivores

7. Nearly all absorption of digested food takes place in the __________.

a) Lipase
b) Urea
c) Ileum
d) Constipation

8. Jaundice

a) Accumulation of bile pigments in blood.
b) Enzyme secreted by the lining of duodenum
c) Digests all principal components of food
d) Second portion of the small intestine

9. Deficiency of ___________ causes stunted growth of roots.

a) Assimilation
b) Phosphorus
c) Saprophytic nutrition
d) Puccinia

10. Mastication and communication is the function of: a) Keats
b) Leech
c) Peach
d) Teeth

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