CBSE - Life Processes

1 Life Processes 

The largest gland and in human body is 
(1) Pituitary gland (2) Liver (3) Adrenal gland (4) Thyroid gland

2 Life Processes 

The correct pathway of blood in circulatory system is

(1) Auricles -> Ventricles -> Arteries -> Veins
(2) Ventricles -> Auricles -> Veins -> Arteries
(3) Ventricles -> Veins -> Arteries -> Auricles
(4) Veins -> Ventricles -> Arteries -> Auricles

3 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

4 Life Processes 

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

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

5 Life Processes 

The instrument for measuring blood pressure is called
(1) Manometer (2) Sphygmomanometer (3) Barometer (4) Potentiometer

6 Life Processes 

Out of the following endrocine glands which are unparied ?
(1) Ovary (2) Testes (3) Pancreas (4) Adrenal

7 Life Processes 

Energy flow in an Ecosystem is-
(1) Unidirectional (2) Bidirectional (3) Bark (4) Roots

8 Life Processes 

Iodine is necessary for the synthesis of which hormone ?
(1) Auxin (2) Thyroxin (3) Adrenaline (4) Insulin

9 Life Processes 

Which endocrine gland does regulate the level of phosphorus in blood?

(1) Thyroid 
(2) Parathyroid 
(3) Adrenal 
(4) Pituitary

10 Life Processes 

Which of the following are secondary metabolities ?

(A) Carbohydrates (B) Tannins (C) Proteins (D) Gums (E) Alkaloids

(1) A, D (2) B, C (3) A, D, E (4) B, D, E