Question

Classify the following hormone as plant hormone (P) or animal hormone (A).
I. Progesterone
II. Thyroxine
III. Auxin
IV. Adrenaline

• A. I – (P), II – (A), III – (P), IV – (P)
• B. I – (A), II – (A), III – (P), IV – (A)
• C. I – (A), II – (A), III – (A), IV – (P)
• D. I – (P), II – (P), III – (P), IV – (P)

Answer 1

The correct option is B

I – (A), II – (A), III – (P), IV – (A)

Progesterone is a hormone that is secreted in females and is associated with menstrual cycle and pregnancy.

Thyroxine is a hormone that is secreted by the thyroid gland and regulates the metabolism of carbohydrates, proteins and fats and maintains the balance of growth.

Auxin is a plant hormone and is responsible for the growth of the shoot.

Adrenaline is a hormone secreted in the animal body and it affects the heart rate, dilation of pupils, etc.