To solve this problem, we need to identify the correct term for the fluid combination of seminal plasma and sperm.
1. Understanding Seminal Plasma:
Seminal plasma is the fluid secreted by accessory reproductive glands such as seminal vesicles, prostate gland, and Cowper's (bulbourethral) glands. It provides nutrients, protection, and a medium for sperm motility.
2. Combination of Seminal Plasma and Sperm:
When seminal plasma mixes with spermatozoa produced in testes, it collectively forms semen. Semen is the fluid ejaculated during sexual intercourse.
3. Evaluating Options:
(1) Plasma – Incorrect (a general term unrelated specifically to reproductive fluids).
(2) Semen – Correct (semen consists of seminal plasma and sperm).
(3) Placenta – Incorrect (involved in fetal development and not related to seminal fluids).
(4) None of the above – Incorrect (option (2) is correct).
Final Answer:
The correct option is (B) Semen.
Study the graphs given below for Case 1 and Case 2 showing different levels of certain hormones and answer the question that follows:
(a) Which hormone is responsible for the peak observed in Case 1 and Case 2? Write one function of that hormone.
(b) Write changes that take place in the ovary and uterus during follicular phase.
Student to attempt either sub-part (c) or (d):
(c) Name the hormone Q of Case 2. Write one function of hormone Q.
OR
(d) Which structure in the ovary will remain functional in Case 2? How is it formed?
Match the following items of Column-I with that of Column-II: