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LIFE PROCESSES

Total questions: 18

Worksheet time: 18mins

Name
Class
Date
1.

can prepare their own food from simple inorganic sources like carbon dioxide and water. (e.g.,

green plants, some bacteria).

(a)  

2.

cannot synthesise their own food and are dependent on the autotrophs for obtaining

complex organic substances for nutrition. (e.g., animals)

(a)  

3.

Green plants manufacture their food by the process of---------.

(a)  

4.

In----------------------------Blood moves from the heart to the lungs and back to the heart.

(a)  

5.

In-----------------------------------------------Blood moves from the heart to rest of the body and back to the heart.

(a)  

6.

Each kidney contains many filtration units called as

(a)  

7.

In plants, excretion of oxygen, CO2 and water takes place through

stomata by the process of --------------

(a)  

8.

It is a wave of contraction behind the food and expansion in the region of contained food that occurs

in the alimentary canal for pushing the food from anterior to posterior ends

(a)  

9.

It is the process of ingestion of solid food particle by a cell or unicellular organism

(a)  

10.

: It is the step-wise complete oxidative breakdown of respiratory substrate into carbon dioxide

and water with the help of oxygen that act as terminal oxidant.

(a)  

11.

It is the first step of breakdown of respiratory substrate which occurs in cytoplasm

and produces two molecules of pyruvate from a molecule of glucose.

(a)  

12.

It is the process of destruction of RBC’s

(a)  

13.

It is a whitish watery fluid that is squeezed out from contracting blood clot.

(a)  

14.

It is a repeated throb felt in a superficial artery of the body due to forceful pumping of the blood. It

depends on the rate of heart beat.

(a)  

15.

It is the process of throwing out of waste products and other harmful chemicals from the body

(a)  

16.

It is the filtration under pressure of small particles, solutes and solvents, through a finely porous

membrane

(a)  

17.

It is the expulsion of urine from the body.

(a)  

18.

It is the maintenance of a fixed osmotic concentration of body fluids by controlling the amount

of water and salts.

(a)