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

Anger is caused by increased levels ofthe following hormone.

(1) Somatotropin
(2) Thyroxine
(3) Testosterone
(4) Adrenaline

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

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

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

The site for complete digestion of carbohydrates, proteins and fats is

(1) Large intestine 
(2) Stomach 
(3) Small intestine 
(4) Mouth