Question

1. Arrange the following in correct order through which the air flows up

to alveoli.

Trachea, larynx, alveoli, nostrils, pharynx.

2. Which pancreatic enzyme is effective in digesting proteins?

3. What is extracellular digestion?

2 marks question

1. Differentiate between an artery and a vein.

2. Explain role of HCL in stomach?

3. What are the methods used by plants to get rid of excretory products?.

4. Differentiate between transpiration and translocation.

5. What is the advantage of having four chambered heart?

6. If you chew chapati for long, after some time it taste sweet ? Why is

this so ?

3 marks question

1. Explain the process of break down of glucose in a cell (i) in the

presence of oxygen (ii) in the absence of oxygen.

2. What are villi? Where are they present? What is their function?

4 Marks Question

1. Draw a diagram of Sectional view of the Human Heart and label the

parts which do the following functions.

a) Chamber where oxygenated blood from lungs is collected.

b) Largest blood vessel in our body

c) Muscular wall separating right and left chambers

d) Blood vessel that carry blood from heart to the lungs​

Answer 1

Answer:

Explanation:

1)nostrils...pharynx...larynx....trachea..alveoli