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

The human female gonads are ovaries. A maturing egg in the ovary is present in a sac of cells called ______ (1). As the egg grows larger, the follicle enlarges and gets filled with a fluid and is now called the ______ (2) follicle. The process of releasing the egg from the ovary is called ______ (3). The ovum is picked up by the oviducal funnel and fertilization takes place in the ______ (4). In about a weak the blastocyst gets fixed in the endometrium of the uterus and this process is called ______ (5).

The site of maturation of human sperms is the

The exact location of the Amnion

The exact location of the seminal vesicle

Expand the following biological abbreviations: TSH

Give technical terms for Thin walled sac of skin which covers the testes

Choose the ODD one out from the following terms given and name the CATEGORY to which the others belong :

Prostate gland, Cowper’s gland, seminal vesicle, seminiferous tubules

Given below are diagrams showing the different stages in the process of fertilisation of an egg. in the human female reproductive tract.

Study the diagrams and answer the questions:

1) Arrange the letters given below each diagram in a logical sequence to show the correct order in the process of fertilisation.

2) Where does fertilisation normally take place? and What is ‘Implantation’ that follows fertilisation?

3) Mention the chromosome number of the egg and zygote in humans.

4) Explain the term ‘Gestation’. How long does Gestation last in humans?

5) Draw a neat, labelled diagram of a mature human sperm.

Give appropriate biological or technical terms for the following:

The onset of menstruation in a young girl

Give appropriate biological or technical terms for the following :

The fluid which surrounds the foetus

Give biological explanations for The placenta is an important structure for the development of a foetus

Give biological explanations for All the food chains begin with green plants.

 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. 

Choose the correct answer from the four options given below : 
 On which day of the menstrual cycle does ovulation take place ?

Mention the exact location of the following : 
 Testis   

 Mention the exact location of the following : 
Amniotic fluid 

Mention the exact location of the following : 
Corpus callosum 

The diagram given below represents a system in the human body. Stud the diagram and answer the following questions:

 Label the parts marked 5 and 6. 

The diagram given below represents a system in the human body. Stud the diagram and answer the following questions:

Name the two hormones secreted by 1. 

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