(English Medium) ICSE Class 10 - CISCE Question Bank Solutions for Biology

Describe the functions of Amnion 

Describe the functions of placenta 

The diagram given alongside is that of a developing human foetus in the womb. Study the same and answer the questions that follows:

Name the parts ‘1’ to ‘5’ indicated by guidelines

Name the following: 

The structure which connects the placenta and the foetus.

Correct and rewrite the statements by changing the biological term that is underlined for the statement:

The protective sac which develops around the developing embryo is called the Pericardium.

What is Placenta?

How is Placenta formed?  What are its functions?

Mention three functions of the placenta.

The circulatory system of the fetus and that of the mother are never connected directly. What are the advantages?

What changes occur at the time of birth?

Describe briefly the ways how a mammalian embryo is protected

Describe briefly the ways how a mammalian embryo is nourished

Describe briefly the ways how a mammalian embryo is respires

Give Reasons

The full-grown human embryo respires but does not breathe.

Differentiate

Amnion and Chorion.

Differentiate

Uterus and Urethra.

Differentiate

Fetus and Embryo.

The diagram given below is that of a developing human foetus in the womb. Study the same and then answer the questions that follow:

1. Name the parts '1' to '5' indicated by guidelines.
2. What term is given to the period of development of the foetus in the womb?
3. How many days does the foetus take to be fully developed?
4. Mention two functions of the parts labelled ‘2’ other than its endocrine function.
5. Name the hormone (anyone) produced by the part labelled ‘2’.
6. What is the function of the part marked ‘3’?

The diagram given below shows an embryo in the uterus of mammal. Label the parts indicated.

Study the diagram given below and then answer the questions that follow:

(i) Name the parts labeled 1 and 2. State the function of each part.
(ii) State any one function of the amniotic fluid.
(iii) What is the role of the umbilical cord in the development of the fetus?
(iv) Name the part in the diagram which is endocrine in nature.