NCERT Solutions For Class 10 Science Chapter 8: How Do Organisms Reproduce?

NCERT Solutions for Class 10 Science Chapter 8 How do Organisms Reproduce? is provided in the article. Some of the important topics of How do Organisms Reproduce chapter include:

Expected no of questions: 3 to 4 questions of total 6 marks.

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NCERT Solutions for Class 10 Science Chapter 8

NCERT Solutions for Class 10 Science Chapter 8 How do Organisms Reproduce is given below.

NCERT Solution class 10 science chapter 8

NCERT Solutions for Class 10 Science

Reproduction is a biological process in which an organism reproduces offspring who are biologically identical to the organism. Reproduction enables and ensures species continuity generation after generation. Organisms reproduce in two ways- namely, asexually and sexually.

Asexual Reproduction: Asexual reproduction takes place in bacteria, amoeba, hydra, etc, and does not involve the fusion of male and female gametes.

Sexual Reproduction: Sexual reproduction can be seen in humans and many animals, and involves the fusion of male and female gametes.

Pollination: Pollination is the transfer of pollen grains from the anther (the male portion of a flower) to the stigma (the female component of a flower).

Self-Pollination is a pollination process in which pollen is transferred between the anther and stigma of the same flower.
Cross-Pollination is a type of pollination in which pollen is transferred between the anther and stigma of different blooms of the same plant or distinct plants of the same species.

When pollen is transported to the stigma, male gametes from pollen grains are released and unite with the egg in the ovule to generate a zygote. This process of gamete fusion is known as fertilization.

In humans, male reproductive organs consist of:

Testes
Scrotum
Vas deferens
Accessory glands
Penis

Female reproductive organs consist of:

Ovaries
Fallopian Tube
Uterus
Vagina

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CBSE X Related Questions

1.
Identify the type of reproduction shown in the diagram given below:
- Budding
- Fragmentation
- Spore Formation
- Binary Fission
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2.
Given below is a pyramid showing various trophic levels in an ecosystem:
(a) From the organisms listed below, identify which one is to be placed at which trophic level:
Deer, Grass, Lion, Snake, Rabbit
(b) Discuss the reason why primary consumers will have more energy as compared to secondary consumers?
(c) Why is the base of the pyramid broad?
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3.
The natural sources of oxalic acid, lactic acid and methanoic acid respectively are:
- tomato, curd, ant-sting
- tomato, orange, nettle-sting
- orange, milk, ant-sting
- orange, sour milk, nettle-sting
View Solution
4.
Assertion (A): Reflex actions do not involve thinking.
Reason (R): Most reflex actions are controlled by the spinal cord.
- Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
- Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
- Assertion (A) is true, but Reason (R) is false.
- Assertion (A) is false, but Reason (R) is true.
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5.
Which structure in a leaf is mainly responsible for gaseous exchange?
- Xylem
- Stomata
- Phloem
- Cuticle
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6.
Rays from the sun converge at a point 25 cm behind a convex lens. The distance at which an object be placed in front of the lens to get a virtual image, is:
- 20 cm
- 40 cm
- 50 cm
- More than 50 cm
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