Question

Q1. How does the process of ingestion take place in paramecium? How is it different from that in

amoeba?

Q2. Identify the part of the Alimentary Canal where:

a) No digestion takes place.

b) Absorption of nutrients takes place.

c) Absorption of water takes place.

d) Only absorption takes place and no digestion occurs

e) Food changes into paste called chime.

Q3. Give reasons for the following:

a) Food needs to be broken down before absorption.

b) Brushing of teeth is essential before each meal.

c) Lactic Acid is produced on sudden physical exercise.

d) Emulsification of fat is important for its breakdown.

Q4. Trace the digestion of Chappati and Dal in the human digestive system.

Q5. Explain the structure of Alveoli with reference to its role in exchange of gases.

Q6. Identify the part in the Human Respiratory System

a) That has cartilageous rings

b) That encloses vocal cord

c) Sheet of muscle that separates the chest cavity from the abdominal cavity.

d) Serves as a common passage for food and air.

e) cartilaginous flap which closes the glottis to check the entry of food into it during

swallowing.

Answer 1

tooooooo longggggggg

Answer 2

(1) paramecium follows holozic nutrition. Paramecium feed on microorganisms like bacteria, algae, and yest.