The diagram given below represents a system in the human body. Study the diagram and answer the following questions: Mention the number and the name of the part involved in fertilization and Implantation from the above diagram.

In the given figure, the marked part 2 is fallopian tube. This part is involved in the fertilization process.The fusion of both male and female gametes is called fertilization. It results in the formation of a zygote. It is a natural life process.The fertilization usually takes place in the ampulla of the fallopian/uterine tube. The marked part 3 is Uterus. This part is involved in the implantation process.The implantation happens in the endometrium of the uterus.

Give appropriate biological/ technical terms for the following: The accessory gland in human males whose secretion neutralises the acid in the vagina.

The male accessory glands include the seminal vesicles, prostate, bulbourethral gland. These glands secrete fluids that enter the urethra. Among them, the prostate gland is the largest, and it pours down alkaline secretions into the semen as it passes down through the urethra. The accessory gland in males whose secretion neutralises the acid in the vagina is prostate gland. This gland contains alkaline pH which helps to neutralize the acidity of the vagina.

Give appropriate biological/ technical terms for the following: A surgical method of fertility control in human males.

The surgical method used for the fertility control in males is vasectomy and for women, it is called tubectomy. In the vasectomy, a slight incision is made at the base of the scrotum in order to expose sperm duct. It carries the sperms to the urethra. Hence, it is tied by a thread to stop the movement of sperms.

Given below are diagrams showing the different stages in the process of fertilisation of an egg in the female reproductive tract: Study the diagrams and answer the questions: (i) Arrange the letters given below each diagram in a logical sequence to show the correct order in the process of fertilisation. (ii) Where does fertilisation normally take place? What is ‘implantation’ that follows fertilisation? (iii) Mention the chromosome number of the egg and zygote in humans. (iv) Explain the term 'Gestation'. How long does gestation last in humans? (v) Draw a neat labelled diagram of a mature human sperm.

(i) D- C- B- A Fertilization is a natural process where the male gamete or sperm fused together with the female gamete, or ovum to produce a zygote. During fertilisation, several sperm may surround an egg, but only one sperm enters it. In doing so, the tail is left behind and only the head part which contains the nucleus penetrates the egg. This sperm nucleus fuses with the nucleus of the egg. As soon as one sperm enters the egg (ovum), the entry of other sperm is prevented by a chemical barrier. (ii) Fertilization usually takes place in a fallopian tube that links an ovary to the uterus. The zygote soon starts dividing (cleavage) into 2, 4, 8, 16 cells and so on. By the time it reaches the uterus, it has already formed a small hollow ball of numerous cells called a blastocyst. This process is called implantation. (iii) Healthy humans have 46 chromosomes, 23 from the sperm and 23 from the egg. The zygote has 46 chromosomes. The egg has 23 chromosomes due to the meiosis process. (iv) The full term of the development of the embryo in the uterus is called gestation. In humans, it lasts for about 280 days. (v)

Correct and rewrite the statements by changing the biological term that is underlined in the statement: The protective sac which develops around the developing embryo is called the Pericardium .

Amnion is a membrane that covers the human and various other embryos when first formed. It is the protective sac that develops around the developing embryo. It produces a clear, yellowish liquid that surrounds the unborn baby during pregnancy. This fluid is called amniotic fluid which protects an embryo while it is growing in the uterus. It is essential for the development of the foetus. Hence, The protective sac which develops around the developing embryo is called the amnion .

Mention the exact location of the following: (i) Epididymis

Epididymis is a knot like structure which locates in the upper portion of testes. The epididymis is the part of the human male reproductive system. It is the tube that holds the testicles in place. It stretches from the back of each testicle to the vas deferens.The epididymis consists of three parts: head, body, and tail.

E M B I B E

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 13 - Reproductive System>ICSE-2019>Q 19

EASY

10th ICSE

IMPORTANT

Earn 100

The diagram given below represents a system in the human body.

Study the diagram and answer the following questions:

Label the parts marked 5 and 6.

Important Questions on Reproductive System

EASY

10th ICSE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 13 - Reproductive System>ICSE-2019>Q 20

The diagram given below represents a system in the human body.

Study the diagram and answer the following questions:

Question Image

Name the two hormones secreted by 1.

EASY

10th ICSE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 13 - Reproductive System>ICSE-2019>Q 21

The diagram given below represents a system in the human body.

Study the diagram and answer the following questions:

Question Image

Mention the number and the name of the part involved in fertilization and

Implantation from the above diagram.

EASY

10th ICSE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 13 - Reproductive System>ICSE-2020>Q 22

Given below are certain groups of terms. In each group, the first pair indicates a relationship between the two terms. Rewrite and complete the second pair on a similar basis.

Widening of hips: Oestrogen:: Deepening of voice in males: _____.

EASY

10th ICSE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 13 - Reproductive System>ICSE-2020>Q 23

Given below are certain groups of terms. In each group, the first pair indicates a relationship between the two terms. Rewrite and complete the second pair on a similar basis.

Uterus : Implantation :: Fallopian tube : _____.

EASY

10th ICSE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 13 - Reproductive System>ICSE-2020>Q 24

Choose the correct answer from the four options given below:

The fusion of the sperm and ovum is termed as:

MEDIUM

10th ICSE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 13 - Reproductive System>ICSE-2020>Q 25

State two functions of testis.