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

Rearrange the following in correct sequence pertaining to what is given within brackets at the end.

Axon endings - Dendrites - Axon - Perikaryon - Dendron (Neuron structur)

Name the following:

Three types of neurons

Name the following:

Three types of nerves.

Name the following:

Three main parts of the neuron

Define the following term:

Nerve

Define the following term:

Synaptic cleft

Distinguish between the following pair:

Nerve impulse and flow of electricity (transmission and speed)

Give reason:

Neurotransmitters are broken down by an enzyme just after passing an impulse from one neuron to the other.

The figure given below is the basic structural and functional unit of the human nervous system. Study the diagram and answer the following questions:

1. Write the technical term for the diagram.
2. Name two organs of our nervous system where these cells are richly found.
3. How are these cells significant for us?
4. Name the cell organelle that is absent in these cells and how does it affect our body metabolism?
5. Redraw the same figure and label the following Perikaryon, Axon, Dendrites, Myelin sheath and Node of Ranvier.

The immunity acquired by providing readymade antibodies from outside for treating certain infectious diseases.

Give scientific reasons: Injury to medulla oblongata leads to death.

BCG vaccine is effective against
A. Cholera
B. Mumps
C. Tuberculosis
D. Measles

the biological/technical terms for The process by which white blood cells engulf bacteria

Differentiate between the Vasopressin and Insulin (Deficiency disorder)

Give scientific reasons : A person walks clumsily after consuming alcohol

A potted plant with variegated leaves was taken in order to prove a factor necessary for photosynthesis. The potted plant was kept in the dark for 24 hours and then placed in bright sunlight for a few hours. Observe the diagrams and answer the questions:

1. What aspect of photosynthesis is being tested in the above diagram?
2. Represent the process of photosynthesis in the form of a balanced equation.
3. Why was the plant kept in the dark before beginning the experiment?
4. What will be the result of the starch test performed on Leaf ‘A’ shown in the diagram? Give an example of a plant with variegated leaves
5. Draw a neat labelled diagram of a chloroplast.

Name the repeating components of each DNA strand lengthwise.

Name the complex consisting of DNA strand and a core of histones.

Name the type of bond which joins the complementary nitrogenous bases. 

Name the three components of a nucleotide.