Q8
2 marksShort AnswerSection A

List the parts of human male reproductive system which contribute fluid to the semen. State two advantages semen offers to the sperms.

How do Organisms Reproduce?
Human Male Reproductive System
Official Answer

Parts contributing fluid to semen:

  1. Prostate gland
  2. Seminal vesicles

Advantages of semen to the sperms:

  1. Easy Transport: Semen provides a fluid medium that makes the transport of sperms easier through the male reproductive tract.
  2. Nutrition: The fluid contains nutrients (like fructose, proteins, and essential chemicals) that provide nutrition and energy to the sperms for their survival and motility.
prostate glandseminal vesiclesfluid mediumtransportnutrition

Marking Scheme

  • 1Naming Prostate gland and Seminal vesicles (0.5 marks each) (1 mark)
  • 2Stating two advantages: fluid medium for transport and nutrition (0.5 marks each) (1 mark)

Hint

Recall the accessory glands of the male reproductive system that secrete fluids along the vas deferens, and think about what a sperm needs to survive and swim.

Quick Oral Answer

The prostate gland and seminal vesicles contribute fluid to the semen. Semen provides a fluid medium for the easy transport of sperms and supplies them with nutrition.

Analysis & Explanation

In the human male reproductive system, the testes produce sperms, which then travel through the vas deferens. Along this path, glands like the prostate gland and seminal vesicles add their secretions.

  • This combined mixture of sperms and glandular secretions is called semen.
  • The fluid serves two critical roles: it acts as a liquid medium facilitating the smooth transport of sperms, and it delivers vital nutrients to keep the sperms active and motile.

Common Mistakes

  1. 1Naming testes or vas deferens as fluid contributors instead of the accessory glands.
  2. 2Forgetting to mention nutrition as a key advantage of semen.

Interesting Facts

Sperms make up only about 10% of the total volume of semen; the remaining 90% consists of secretions from the seminal vesicles, prostate gland, and bulbourethral glands.

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Frequently Asked Questions

How many marks does this question carry in CBSE Class 10 Science 2012?

This question carries 2 marks in the CBSE Class 10 Science 2012 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" from CBSE Class 10 Science.

What type of question is this in the CBSE Class 10 Science 2012 paper?

This is a Short Answer question from Section A in the CBSE Class 10 Science 2012 paper.