Sunday, September 27, 2020

Solutions of Worksheet 1, RESPIRATION IN ORGANISMS, Ch 10, Class 7

 

Q1:

1.  voice box

2. lungs and gills

3. alcohol

4. lactic acid

5. guard cells

6. stomata

7. aerobic

8. Haemoglobin

9. 21%

10. 15-18%

11. 0.04%

12. lactic acid

13.  inside

14. spiracles

15. trachea

Q2:

1.  d

2.  d

3.  a

4.  a

5.  b

6.  b

7.  b

8.  a

9.  a

10.  c

11.  a

12.  a

13.  c

14.  c

15.  a

Q. III

a. cockroach or ant or any other insect

b. Tracheal tubes

c. Stomata

d. Haemoglobin

e. Alveoli

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