Samacheer Kalvi solutions for Science [English] Class 10 SSLC TN Board chapter 17 - Reproduction in Plants and Animals [Latest edition]

The plant which propagates with the help of its leaves is ______.

Asexual reproduction takes place through budding in ______.

Syngamy results in the formation of ______.

The essential parts of a flower are ______.

Anemophilous flowers have ______.

Male gametes in angiosperms are formed by the division of ______.

What is true of gametes?

A single highly coiled tube where sperms are stored gets concentrated, and mature is known as ______

The large elongated cells that provide nutrition to developing sperms are ______

Estrogen is secreted by ______

Which one of the following is an IUCD?

The embryo sac in a typical dicot at the time of fertilization is ______.

After fertilization the ovary develops into ______.

Planaria reproduces asexually by ______.

Fertilization is ______ in humans.

The implantation of the embryo occurs at about ______ days of fertilization.

______ is the first secretion from the mammary gland after childbirth.

Prolactin is a hormone produced by ______.

Match the following.

Match the following terms with their respective meanings.

The stalk of the ovule is called a pedicle.

Seeds are the product of asexual reproduction.

Yeast reproduces asexually by means of multiple fission.

The part of the pistil which serves as a receptive structure for the pollen is called style.

Insect pollinated flowers are characterized by dry and smooth pollen.

Sex organs produce gametes which are diploid.

LH is secreted by the posterior pituitary.

The menstrual cycle ceases during pregnancy.

Surgical methods of contraception prevent gamete formation.

The increased level of estrogen and progesterone is responsible for menstruation.

If one pollen grain produces two male gametes, how many pollen grains are needed to fertilize 10 ovules?

In which part of the flower germination of pollen grains takes place?

Name two organisms that reproduce through budding.

Mention the function of the endosperm.

Name the hormone responsible for the vigorous contractions of the uterine muscles.

What is the enzyme present in the acrosome of sperm?

When is World Menstrual Hygiene Day observed?

What is the need for contraception?

Name the part of the human female reproductive system where the following occurs.

Fertilization

Name the part of the human female reproductive system where the following occurs.

Implantation

What will happen if you cut planaria into small fragments?

Why is vegetative propagation practiced for growing some type of plant?

How does binary fission differ from multiple fission?

Define triple fusion.

Write the characteristics of insect-pollinated flowers.

Name the secondary sex organs in males. 

What is colostrum? How is milk production hormonally regulated?

How can menstrual hygiene be maintained during menstrual days?

How does a developing embryo get its nourishment inside the mother's body? 

Identify the parts A, B, C, and D?

Write the events involved in the sexual reproduction of a flowering plant.

a. Discuss the first event and write the types.

b. Mention the advantages and the disadvantages of that event.

Why are the human testes located outside the abdominal cavity? Name the pouch in which they are present.

The luteal phase of the menstrual cycle is also called the secretory phase. Give reason.

Why are family planning methods not adopted by all the people of our country?

A neat labelled diagram describes the parts of a typical angiospermic ovule.

What are the phases of the menstrual cycle? Indicate the changes in the ovary and uterus.

In angiosperms, the pollen germinates to produce a pollen tube that carries two gametes. What is the purpose of carrying two gametes when a single gamete can fertilize the egg?

Why menstrual cycle does not take place before puberty and during pregnancy?

Read the following passage and answer the question that follows:

Rahini and her parents were watching a television programme. An advertisement flashed on the screen which was promoting the use of sanitary napkins. Rahini’s parents suddenly changed the channel, but she objected to her parents and explained the need and importance of such an advertisement.

What is first menstruation called? When does it occur?

Read the following passage and answer the question that follows:

Rahini and her parents were watching a television program. An advertisement flashed on the screen which was promoting the use of sanitary napkins. Rahini’s parents suddenly changed the channel, but she objected to her parents and explained the need and importance of such an advertisement.

List out the napkin hygiene measures taken during menstruation?

Read the following passage and answer the question that follows:

Rahini and her parents were watching a television program. An advertisement flashed on the screen which was promoting the use of sanitary napkins. Rahini’s parents suddenly changed the channel, but she objected to her parents and explained the need and importance of such an advertisement.

Do you think that Rahini’s objection towards her parents was correct? If so, Why?