(English Medium) ICSE Class 10 - CISCE Important Questions for Biology

Give appropriate biological/technical terms for the following:

The accessory gland in human males whose secretion activates the
sperms.

Give appropriate biological/technical terms for the following:

The kind of twins formed from two fertilized eggs.

find odd one from following: Thymine, Cytosine, Adenine, Pepsin.

State the exact location of the Proximal convoluted tubule.

State the main function of the Leydig cells

Differentiate between Human skin cell and Human ovum (number of chromosomes).

Differentiate between Sperm duct and fallopian rube (function)

Differentiate between Rod cells and cone cells (pigment)

the Biological/technical term for The canal through which the testes descend into the scrotum just before the birth of a male baby

Give scientific reasons: When an ovum gets fertilized, menstrual cycle stops temporarily in a woman.

Give scientific reasons: Mature erythrocytes in humans lack nucleus and mitochondria 

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

(i) Label the parts numbered 1 to 3 in the diagram.
(ii) Mention any two functions of the part labelled 2 in the diagram.
(iii) Explain the significance of the part numbered 3 in the diagram.
(iv) Define the term ‘Gestation’. What is the normal gestational period of the developing human embryo?
(v) Mention the sex chromosomes in a male and female embryo.

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

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

fill in the blanks with suitable functions: Seminiferous Tubule and _____

Match the Column:

the biological/technical terms for Fixing of developing zygote on the uterine wall.

What is the significance of amniotic fluid?

Differentiate between the Tubectomy and Vasectomy (Part cut and tied)

State the main function of the Sperm duct.