Exams › NEET › Biology

The process of sperm production in the testes of an adult human occurs through three key stages in gametogenesis: multiplication, growth, and maturation. During these stages, germ cells first transform into spermatogonia, then into spermatocytes during the growth phase, which subsequently develop into spermatids and eventually mature into sperm cells.

1. Sperm remains functional for a period of 2-3 days.
2. The acrosome, located at the tip of the nucleus, is a pointed structure that releases hydrolytic enzymes prior to fertilization, aiding in the penetration of follicle cells surrounding the ovum to facilitate fertilization.
3. Sperm production in the testes of mature humans occurs in three main phases: multiplication, growth, and maturation. Germ cells first become spermatogonia, then spermatocytes during the growth phase, which develop into spermatids and finally into sperm.
4. The entire process of spermatogenesis takes about 74 days to produce fully mature sperm.

Correct answer: Sperm production in the testes of mature humans occurs in three main phases: multiplication, growth, and maturation. Germ cells first become spermatogonia, then spermatocytes during the growth phase, which develop into spermatids and finally into sperm.

Solution

Option (c) correctly describes the phases of spermatogenesis: multiplication, growth, and maturation, leading to the formation of sperms from germ cells. The other options either describe unrelated facts or are not directly relevant to the question.

Related NEET Biology questions

• Eye lens is formed from
• What is true for cleavage?
• Meiotic division of the secondary oocyte is completed
• Which part of ovary in mammals acts as an endocrine gland after ovulation?
• Mainly which type of hormones control the menstrual cycle in human beings?
• Which of the following hormones is not a secretion product of human placenta?

⚔️ Practice NEET Biology free + battle 1v1 →