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Question
What is the composition of semen?
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Solution
Semen or seminal fluid is a milky white fluid which contains sperms and seminal plasma, which is secreted from the seminal vesicles, prostate gland, and bulbourethral glands.
RELATED QUESTIONS
The diagram given below is that of a developing human foetus. Study the diagram and then answer the questions that follow:
(i) Label the parts numbered 1 to 3 in the diagram.
(ii) Mention any two functions of the part labelled 2 in the diagram.
(iii) Explain the significance of the part numbered 3 in the diagram.
(iv) Define the term ‘Gestation’. What is the normal gestational period of the developing human embryo?
(v) Mention the sex chromosomes in a male and female embryo.
Match the Column:
| no | Column A | Column B |
| 1 | Allele | Control of automobile exhaust |
| 2 | Leydig cells | Tourniquet |
| 3 | Utriculus | Alternate forms of genes |
| 4 | Snake bite | Dynamic equilibrium |
| 5 | Euro IV norms | Testosterone |
| Sudden change in genes | ||
| Static equilibrium |
What changes are seen in boys at the time of puberty?
What is placenta? What is its function?
The normal gestation period in humans is:
Describe in brief the role of ureter in human male reproductive system.
Describe the role of the following in human beings:
(i) Seminal vesicles
(ii) Prostate gland
Choose the correct answer:
Binary fission is a method of __________
Define the following:
Asexual reproduction
Choose the Odd One Out:
