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

______ hormone inhibits apical dominance.

Define the following term:

Apical dominance

Define the following term:

Parthenocarpy

Name the two fluids that circulate in the body.

In a coloured diagram, why do we generally show the pulmonary artery in blue and pulmonary vein in red colour?

Name these:

Three non-circulating fluids in human body

Write one word for the following:

Point of contact between two nerve cells.

Correct the following statement by changing the underlined word:

Nitrogen bonds are present between the complementary nitrogenous bases of DNA.

What are the rungs of the “DNA ladder” made of? 

Correct the following statement if there is any mistake.  

The four nitrogenous bases in the DNA are Guanine, Thiamine, Adrenaline and Cytosine. 

The three sketch (A, B and C) are intended to represent the replication of DNA.

What should be their correct sequence, starting with the first and ending with the last? …… 

The diagram below represents a layer of epidermal cells showing fully grown root hair. Study the diagram and answer the questions that follow: 

1. Name the parts labelled A, B, C and D.
2. The root hair cell is in a turgid state. Name and explain the process that caused this state.
3. Mention one distinct difference between the parts labelled A and B.
4. Draw a diagram of the above root hair cell as it would appear when a concentrated solution of fertiliser is added near it.

Name the following:

An instrument used to find the rate of transpiration.

Name the following:

The apparatus to record the rate of transpiration in a cut shoot. 

Which of the following statements are true and which ones are false? Give reason in support of your answer. 

Forest contribute in bringing rains. 

Which of the following statements are true and which ones are false? Give reason in support of your answer. 

Potometer is an instrument used for Demonstration of transpiration occurring from the lower surface of a leaf. 

What is a photometer? 

What is lenticular transpiration? Mention one major difference between lenticular transpiration and stomatal transpiration. 

Droplets of water may sometimes be seen along the margins of the leaves of a banana plant, growing in wet soil, in the mornings. Are these dew drops? Comment upon your answer.

List three major landmarks in human history which contributed to the sudden rise in population of the world.