Oestrogen

Q.

Name the male hormone which is secreted by testes at the onset of puberty in boys.

1. Estrogen

2. Insulin

3. Testosterone

4. Adrenaline

Q.

How does a sperm penetrate an egg through the defence barrier of the egg?

1. They have a sharp pointed head

2. The barrier is not that strong

3. The sperms release digestive enzymes

4. None of these

Q.

The correct set of the match about LH and FSH from the following table is ___. (enter one of A, B, C or D)

$$\begin{array}{ccc}\text{Target organ}& \text{Secretion}& \text{Characters developed}\\ \text{A - Testes}& \text{Testosterone}& \text{Development of breasts}\\ \text{B - Testes}& \text{Oestrogen}& \text{Development of acne}\\ \text{C - Ovaries}& \text{Oestrogen}& \text{Development of breasts}\\ \text{D - Ovaries}& \text{Testosterone}& \text{Development of acne}\end{array}$$

Q. Which of the following is not a gland that helps in the digestion of food?

1. Oesophagus
2. Liver
3. Salivary glands
4. Pancreas