CBSE - Life Processes

1 Life Processes 

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

2 Life Processes 

At the end of the experiment to prove that light is necessary for photosynthesis, when the leaf was tested with iodine, the ' S' shaped figure on the leaf was found to be.

(1) green-presence of starch (2) blue-black presence of starch
(3) green-absence of starch (4) blue-black absence of starch

3 Life Processes 

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

4 Life Processes 

Plant part used as medicine of Terminalia arjuna-
(1) Leaves (2) Fruits (3) Bark (4) Roots

5 Life Processes 

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

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

6 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

7 Life Processes 

The given flow chart shows three steps of glucose breakdown in different conditions. Which of the following steps takes place in the mitochondria ?

(1) Step I
(2) Step II
(3) Step III
(4) Both (2) & (3)

8 Life Processes 

Which of the following is not a part of the female reproductive system in human beings?

(1) Ovary
(2) Uterus
(3) Vas deferens
(4) Fallopian tube

9 Life Processes 

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

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

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