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The Reproductive System

Question
ICSEENIBI10003496

 Study the diagram given below and answer the questions which follow:

(i) Name the part labelled A. Name any two hormones produced by part A.

(ii) What happens to the part labelled B:

(1) If fertilisation takes place.

(2) If fertilisation does not take place.

(iii)Where does fertilisation occur?

(iv)Draw a neat diagram of the human sperm as seen under high magnification and label the following parts:

(1) Acrosome

(2) Mitochondria 

Solution

(i) A - Ovary. 
Two hormones produced by the ovary are oestrogen and progesterone.
(ii)
(1) If fertilisation takes place, then the zygote gets implanted in the endometrial
walls of the uterus and there is no menstrual discharge.
(2) If fertilisation does not take place, then the egg disintegrates and the uterine
lining starts shedding on the 28th day of the menstrual cycle.
(iii)Fertilisation occurs in the fallopian tubes.
(iv) Human sperm

Tips: -


Some More Questions From The Reproductive System Chapter

Given below is an example of certain structures and their special functional activities.

For example: Eye and vision.

On a similar pattern, complete the following:

Placenta ...................... 

Give the biological/technical terms for the following:

The onset of menstruation in a young girl.

Give the biological/technical terms for the following:

Structure which connects the placenta with the foetus

Given below are five groups of terms. In each group, arrange and rewrite the terms in the correct order so as to be in a logical sequence. 

For example, Question: Implantation, Parturition, Ovulation, Gestation, Fertilisation. Answer: Ovulation,Fertilisation. Implantation. Gestation, parturition.

 Intestine, Llver, lntestlnal artery, Hepatic vein. Hepatic portal vein 

(a) Given below is a diagram of the lateral section of the testis of a man. Study the same and answer the questions which follow:

(i)Label the parts numbered 1 to 4 in the diagram.

(ii) State the functions of the parts labelled 1 and 3.

(iii) What is the significance of the testes being located in the scrotal sac outside the abdomen?

(iv) What is the role played by the inguinal canal?

(v) What is semen?

Name the following:

v. The structure formed by the villi of the embryo and the uterus of the mother

Choose the correct answer from the four options given below:

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

Given below is an example of a certain structure and its special functional activity. On a similar pattern fill in the blanks with suitable functions:
Example: Chloroplast and Photosynthesis

iii. Seminiferous Tubule and _________.

Give the biological/technical terms for the following:

iii. Fixing of developing zygote on the uterine wall.

Give the biological/technical terms for the following:

iv. The permanent stoppage of menstruation at about the age of 45 years in a
female.