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प्रश्न
Answer the following question based on the human male reproductive system:
By which type of cell division, sperms are formed?
उत्तर
- Sperms are formed by the type of cell division known as meiosis.
- Meiosis reduces the chromosome number by half, producing haploid sperm cells essential for fertilisation.
APPEARS IN
संबंधित प्रश्न
Humans are __________.
Give appropriate biological/technical terms for the following:
The accessory gland in human males whose secretion activates the
sperms.
Define Spermatogenesis.
Describe the functions of the following:
ovary
Name the Following
The structure in which testes are present in man.
Write the answers to the questions by observing the figure.
- What does the above figure show?
- Write the names of parts A, B, C, D.
- Write the function of the part 'D'.
- How is semen formed?
Which is the duct that carries sperms from testes and opens into the epididymis?
In the male reproductive system, the vasa deferens joins the ____________.
The enlarged end of penis is covered by a loose fold of skin is called ______.
Secretions from which one of the following are rich in fructose, calcium, and some enzymes?
Spot the odd one out from the following structures with reference to the male reproductive system.
Temperature of the scrotum which is necessary for the functioning of testis is always ______ around below body temperature.
Cell at the end of first meiotic division male sperm differentiates into ______.
The path of sperm transport is given below. Provide the missing steps in blank boxes.
In humans, sperm production occurs in the organ ______.
Match the items given in Column I with the most appropriate ones in Column II and rewrite the correct matching pairs:
| Column I | Column II | ||
| (a) | Leydig Cells | 1. | Lack of thyroxine in children |
| (b) | Stoma | 2. | 12 pairs |
| (c) | Ova | 3. | Testosterone |
| (d) | Cranial nerve | 4. | Diffusion of respiratory gases |
| (e) | Cretinism | 5. | Haploid cells |
| 6. | 31 Pairs | ||
| 7. | Diploid cells |
Draw a labelled diagram of male reproductive system.
What is the significance of Testes being placed in Scrotal sacs?
The thin-walled sac of skin in which testis descends is ______.
