CBSE - Life Processes

1 Life Processes 

Which one of the following is not a factor of respiration?

(1) Oxygen 
(2) Carbondioxide 
(3) Water 
(4) Temperature

2 Life Processes 

In humans, disorders of nervous system are caused due to the deficiency of vitamin

(1) Pyridoxine  
(2) Retinol 
(3) Phylloquinone  
(4) Ascorbic acid

3 Life Processes 

 Which one of the following is not a function of the kidney ?

(1) Filtration 
(2) Oxidation 
(3) Absorption 
(4) Secretion

4 Life Processes 

If the saliva is lacking in salivary amylase then which of the following processes taking place in the buccal cavity will  be affected?

(1) Proteins breaking down into amino acids 
(2) Starch breaking down into sugars
(3) Fats breaking down into fatty acids and glycerol 
(4) Intestinal layer breaking down leading to ulcers

5 Life Processes 

An example for essential fatty acids is 

(1) Glutamic acid 
(2) Aspartic acid 
(3) Linoleic acid 
(4) Tartaric acid

6 Life Processes 

Master gland is controlled by ..

(1) Cerebellum
(2) Cerebrum
(3) Medulla
(4) Diencephalon

7 Life Processes 

Some organs of man have their own specific functions but carry out excretion as a secondary function. Identify them.
(1) Lungs, Kidney, Nephron (2) Liver, Skin, Lungs
(3) Skin, Kidney, Intestine    (4) Intestine, Liver, Kidney

8 Life Processes 

Which one is the most poisonous excretory substance

(1) Uric Acid
(2) Urea
(3) Ammonia
(4) Hippuric Acid

9 Life Processes 

Which cell organelle is known as suicidal bag
(1) Ribosome (2) Centrosome (3) Lysosome (4) Peroxysome

10 Life Processes 

'Edema' is related to
(1) Digestive system (2) Excretory system (3) Lymphatic system (4) Arterial system