Life process test 2

                                      FORMATIVE ASSESSMENT I
                                               life process 

MARKS-30                                                             TIME- 70 MINUTES
Instructions:
 Questions : 1 to 5 – 1 Mark each
 Questions : 6 to 9 – 2 Marks each
 Questions : 10 to 13 – 3 Marks each
 Question 14 – 5 Marks

1) Why do fishes breathe faster than land animals?

2) Why is circulation in man known as ―double circulation?

3) What is the source of (i) Carbon dioxide & (ii) Water in autographs .

4) Name the two tissues in plants, which are involved in transportation of materials

5) What is the basic, functional unit of kidneys known as?

6) What is the function of 
(i) Salivary amylase 
(ii) Lipase in digestion in humans.

7) How does opening and closing of stomata occur?

8) What is trachea? Why does trachea not collapse when it has less air in it?

9) What do the following transport?
(i) Xylem (ii) Pulmonary artery (iii) Pulmonary vein (iv) Vena cava

10) Write 2 differences between aerobic and anaerobic respiration. Name 2 organisms that use anaerobic mode of respiration.

11) Draw a neat and well labelled diagram of digestive system of human beings.

12) Explain the three events that take place during photosynthesis.

13) Explain three requirements of all respiratory surfaces.

14) (i) Explain three requirements of all respiratory surfaces
(ii) Draw a neat and well labelled diagram of human respiratory system.
OR
(i) Explain, how urine is formed in the human body?
(ii) Draw a neat and well labelled diagram of human excretory system.

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