(a) Mention one function each of the following organs in human male reproductive system: (i) Testis (ii) Scrotum (iii) Vas deferens (iv) Prostate gland (b) Name the type of germ cell which (i) is motile, and (ii) stores food.
(a) Mention one function each of the following organs in human male reproductive system: (i) Testis (ii) Scrotum (iii) Vas deferens (iv) Prostate gland (b) Name the type of germ cell which (i) is motile, and (ii) stores food.
Official answer
(a) Functions of organs in the human male reproductive system:
- (i) Testis: Produces male germ-cells (sperms) and secretes the hormone testosterone (which regulates sperm production and brings about secondary sexual changes in males).
- (ii) Scrotum: Holds the testes outside the abdominal cavity, maintaining a temperature lower than the normal body temperature, which is essential for the formation of sperms.
- (iii) Vas deferens: Transports and delivers the sperms from the testes towards the urethra.
- (iv) Prostate gland: Secretes a fluid that makes the transport of sperms easier and provides nutrition to them.
(b) Types of germ cells:
- (i) The motile germ-cell is the male gamete (sperm).
- (ii) The germ-cell containing the stored food is the female gamete (egg cell/ovum).
Marking scheme
- 1.Stating one correct function for each of the four male reproductive organs (Testis, Scrotum, Vas deferens, Prostate gland) [0.5 marks each]. (2 marks)
- 2.Identifying the motile germ cell as the male gamete (sperm) [0.5 marks]. (0.5 marks)
- 3.Identifying the food-storing germ cell as the female gamete (egg/ovum) [0.5 marks]. (0.5 marks)
Hint
Recall the pathway of sperm from production to delivery, and think about why the scrotum is located outside the abdominal cavity. For part (b), refer to the text's definition of male and female gametes based on motility and food storage.
Quick oral answer
The testis produces sperms and testosterone. The scrotum keeps the testes cool for sperm survival. The motile gamete is the male gamete, and the food-storing gamete is the female gamete.
Common mistakes
- 1.Writing that the scrotum produces sperms (it only houses the testes).
- 2.Confusing the roles of the male gamete (motile) and female gamete (stores food).
Analysis and explanation
In human males, the reproductive system is designed to produce and deliver germ-cells (sperms).
- The testes are the primary sex organs located in the scrotum because sperm production requires a temperature lower than internal body temperature.
- The vas deferens acts as a passage duct.
- Accessory glands like the prostate gland add secretions to make the semen fluid, aiding motility and nutrition.
Regarding gamete specialisation in complex multicellular organisms:
- The male gamete is small and motile to travel and reach the female gamete.
- The female gamete is larger and non-motile, containing food stores to support the early development of the zygote.
Interesting facts
Sperm cells are the smallest cells in the human male body, whereas the female egg cell (ovum) is the largest cell in the human female body!
Question details
Q10 of 15 questions
- Board
- CBSE
- Class
- Class 10
- Subject
- Science
- Year
- 2022
- Section
- Section B
- Marks
- 3
- Type
- Short Answer
- Chapter
- How do Organisms Reproduce?
- Topic
- Human Male Reproductive System and Gametes
- Bloom's level
- Remembering
- Syllabus topic
- Sexual reproduction in human beings
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Frequently asked questions
How many marks does this question carry in CBSE Class 10 Science 2022?
This question carries 3 marks in the CBSE Class 10 Science 2022 examination.
Which chapter does this question come from in Science?
This question is from the chapter "How do Organisms Reproduce?" in the CBSE Class 10 Science syllabus.
What topic does this question cover in Science?
This question covers the topic "Human Male Reproductive System and Gametes" from CBSE Class 10 Science.
What type of question is this in the CBSE Class 10 Science 2022 paper?
This is a Short Answer question from Section B in the CBSE Class 10 Science 2022 paper.