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

Categorise the following under stimulus and response.

Pain in the eye if something falls into it.

Given alongside is a partial diagrammatic representation of a certain phenomenon pertaining to the nervous system.

1. Name the parts numbered 1-7.
2. Name the phenomenon that the diagram depicts and define it.
3. Give the technical term for the point of contact between two nerve cells.
4. Name the parts not shown in the diagram that should be included to complete the pathway of the phenomenon.

State whether the following is simple reflex, conditioned reflex or neither of the two.

Sneezing

The diagram given below shows the internal structure of a spinal cord depicting a phenomenon. Study the diagram and answer the following questions.

1. Name the phenomenon shown in the figure and define the same.
2. Identify the parts labelled as 1 and 2. Write one functional difference between these two.
3. Name the bony protective covering and the membranous protective covering of the spinal cord.
4. Label the guidelines 3 and 4.
5. How is the labelled part 3 different from part 4 with respect to its composition (part of neuron)?
6. Give the technical term for the point of contact between the two nerve cells.
7. Name the fluid filled inside the central canal of spinal cord.
8. Name the term used for a small gap between two neurons.
9. Give one example of a neurotransmitter.
10. Draw a neat diagram of a nerve cell and label the parts: Perikaryon, Node of Ranvier, Myelin sheath and Axon terminals.

The exact location of the Bicuspid value

Meiosis occurs only in __________ cells.

State the difference between: 

Centrosome and centromere: 

“Gametes must be produced by meiosis for sexual reproduction”. Why is it so? 

How many daughter cells would you expect if 4 cells undergo:

Mitosis

Fill in the blank:

Both ______ and heterotypic divisions occur in meiosis.

Fill in the blank:

Meiotic division is also called ______ division.

Choose the correct answer:

Which division takes most time?

Choose the correct answer:
In meiosis, chromosome number is reduced by