Class 10 Biology Chapter 11
The Reproductive System
Important Questions

Here, you'll find important questions related to Chapter 11 The Reproductive System For ICSE Class 10 Biology. These questions have been crafted to assist students in their preparation for the ICSE Class 10 Biology Examination in 2023–24. By practising various question types, students can clarify their doubts, enhance their exam readiness, boost their confidence, and refine their problem-solving skills

Introduction

The Reproductive System is a crucial topic in ICSE Class 10 Biology. Understanding this system is essential for students as it forms the basis for the continuation of species and plays a vital role in human biology. To excel in your ICSE Class 10 Biology exams, it's essential to focus on important questions related to the reproductive system. These questions are designed to test your knowledge and comprehension of this fundamental biological concept. By practising and mastering these biology important questions for Class 10 ICSE, you can ensure a solid grasp of the topic and boost your confidence in the subject. So, make sure to prioritise studying and solving important questions of biology Class 10 ICSE, as they will help you excel in your biology exams.

What is The Reproductive System?

The reproductive system is a complex set of organs and structures in organisms that is responsible for the production of offspring and the continuation of a species. In biology, it is often divided into male and female reproductive systems, each with its own specialised functions.

• Male Reproductive System: The male reproductive system is primarily responsible for producing and delivering sperm, the male reproductive cells, to fertilise the female's egg. It includes organs such as the testes (which produce sperm and testosterone), the epididymis (where sperm mature and are stored), the vas deferens (the duct that carries sperm from the epididymis to the urethra), and the penis (which delivers sperm to the female reproductive tract during sexual intercourse).
• Female Reproductive System: The female reproductive system is responsible for producing eggs (ova), providing a suitable environment for fertilisation and embryonic development, and nurturing the developing foetus during pregnancy. Key components of the female reproductive system include the ovaries (which produce eggs and female sex hormones like oestrogen and progesterone), the fallopian tubes (where fertilisation typically occurs), the uterus (where a fertilised egg implants and develops during pregnancy), and the vagina (the birth canal and the site of sperm deposition during intercourse).

The reproductive system is regulated by a complex interplay of hormones and is essential for the survival and perpetuation of species. In humans and many other organisms, understanding the functions and interactions of the male and female reproductive systems is crucial for reproduction and the transmission of genetic information from one generation to the next.

Class 10 Biology The Reproductive System Important Questions and Answers

Q1. How many seminiferous tubules are present per testicular lobule?

Options

(a) 1-3
(b) 500
(c) 1000 
(d) At maximum 10

Ans. (a) 1-3

Explanation:
Seminiferous tubules are present in the testes, where sperms are produced. Two to three seminiferous tubules are present in each testicular lobule. Each testis contains around 250 testicular lobules. Seminiferous tubules open into rete testis. The rete testis leads to epididymis through vasa efferentia.

Q2. Corpus luteum in mammals is present in :

Options

(a) Brain and connects the two cerebral hemispheres
(b) Ovaries and produces progesterone hormone
(c) Heart and initiates atrial contraction
(d) Skin and acts as a pain receptor

Ans. (b) Ovaries and produces progesterone hormone
Explanation:
The follicular cells of the empty Graafian follicle form a yellow body called corpus luteum. The corpus luteum secretes progesterone and a smaller amount of estradiol.

Q3. What are the signs of puberty in human male and females ?

Explanation:
In a boy : Change of voice and discharge of semen.
In a girl : Appearance of the menses, appearance of mammary glands and widening of the hips.

Q4. Give two important unique features of the human reproductive system.

Explanation:
(i) It has the longest reproductive phase.
(ii) There is no specific breeding season. It can take place any time during the year.

Q5. (i) Name the female sex hormones and structures which secrete them.
(ii) How is the foetus protected ?

Explanation:
(i) (1) Oestrogen, produced by ovarian follicle and placenta.    
(2) Progesterone, produced by corpus luteum.    
(3) Relaxin, produced by ovary and placenta.
(ii) The human foetus is protected by the amnion layer having amniotic fluid and the yolk sac.

ICSE Class 10 Biology Chapter wise Important Questions

Conclusion

The reproductive system is a remarkable and intricate part of biology, playing a pivotal role in the continuation of life on our planet. It encompasses both the male and female reproductive systems, each with its distinct functions, aimed at the creation of offspring. oswal.io offers a valuable resource in the form of a comprehensive collection of questions related to various biological systems, including the endocrine system. These resources are invaluable for students striving to excel in their studies and gain a deeper understanding of the intricate workings of the human body.

Frequently Asked Questions

Q1 : Explain the term trimester system?

Ans: In Biology, the trimester system mainly refers to three months. A complete pregnancy period lasts for 38-40 weeks or 9 months from the first day of your last menstrual period to the birth of the baby. This period is divided into three stages, which are collectively called trimesters.

• First trimester (1st 3-months).
• Second trimester (2^nd 3 months).
• Third trimester (3^rd 3 months).

Q2 : What is Parturition?

Ans:  Parturition is the process of delivering the baby after the completion of pregnancy or a fully grown developed foetus and placenta from the uterus to the vagina to the outside world. This process occurs in three stages, which includes:

• Stage 1: Preparatory Stage- 2 to 12 hours.
• Stage 2: Birthing Process –30 to 180 minutes.
• Stage 3: Placenta Expulsion –1 to 12 hours.

Q3 : What is the significance of human reproduction?

Ans: Reproduction is a fundamental biological process carried out by different living organisms to produce their young ones or offspring. In humans, reproduction plays a significant role in the continuity of species from one generation to another generation. Without reproduction, there would be no life existing on the planet earth.

Q4 : Difference between sexual and asexual mode of reproduction?

Ans:  Both sexual and asexual are two different modes of reproduction. Sexual mode reproduction takes place in all multicellular organisms including humans, animals, and higher plants. Asexual mode reproduction occurs only in lower invertebrates and other simpler living species such as amoeba, bacteria, and hydra.

Q5 : What is Fertilisation?

Ans: Fertilisation is the fusion of male and haploid female gametes (egg and sperm) resulting in the formation of a diploid zygote.