CBSE - Life Processes

1 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

2 Life Processes 

_________ smoothens bone surface at joints and is also present in the nose, ear, trachea & larynx.

(1) Tendons
(2) Ligament
(3) Areolar tissues
(4) Cartilage

3 Life Processes 

By which cell the process of opening and closing of stomata is controlled?

(1)  Epidermal Cell
(2)  Guard Cell
(3)  Accessory Cell
(4)  Leaf Cell

4 Life Processes 

Which one is the most poisonous excretory substance

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

5 Life Processes 

Kidneys in human beings are a part of t he system of
(1) Nutrition (2) Respiration (3) Excretion (4) Transportation

6 Life Processes 

Master gland is controlled by ..

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

7 Life Processes 

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

8 Life Processes 

Which one of the following does not contain any enzyme?

(1) Bile 
(2) Gastric juice 
(3) Saliva 
(4) Pancreatic juice

9 Life Processes 

Which of the following gland acts as an endocrine gland as well as exocrine gland?

(1)  Salivary gland
(2)  Pancreas gland
(3)  Pituitary gland
(4)  Parathyroid gland

10 Life Processes 

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