(English Medium) ICSE Class 10 - CISCE Important Questions

Expand the following biological abbreviations: ATP

Complete the following paragraph by filling in the blank (1) to (5) with appropriate words:

To test a leaf for starch, the leaf is boiled in water to (1) _________.  It is then boiled in Methylated spirit to (2) ________. The leaf is dipped in warm water to soften it. It is placed in a petri dish, and (3) _____ solution is added. The region of the leaf which contains starch, turns (4) ________and the region while does not contain starch, turns (5) __________.

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.

Differentiate between the following pairs on the basis of what is indicated in the brackets.

Leaf and Liver [form in which glucose is stored]

Give biological explanations for Plants growing in fertilized soil are often found to wilt if the soil is not adequately watered.

 Give suitable biological reasons for the following statement : 
 All life on Earth is supported by Photosynthesis. 

Expand the following biological abbreviations : 
 ATP 

Given below is an experiment setup to demonstrate a particualr tropic movement in germinating seeds. Study the diagram and answer the questions that follow : 

 Label the parts 1 and 2. 

Given below is an experiment setup to demonstrate a particualr tropic movement in germinating seeds. Study the diagram and answer the questions that follow :

(ii) Name the tropic movement shown by part 1. 

 Given below is an experiment setup to demonstrate a particualr tropic movement in germinating seeds. Study the diagram and answer the questions that follow :
Part 1 is affected by two stimuli. Name them. Which one of the two is stronger? 

 Part 1 is affected by two stimuli. Name them. Which one of the two is stronger? 

Given below is an experiment setup to demonstrate a particualr tropic movement in germinating seeds. Study the diagram and answer the questions that follow : 

What is Thigmotropism? Give one example.  

Given below is an experiment setup to demonstrate a particualr tropic movement in germinating seeds. Study the diagram and answer the questions that follow : 

What is meant by ‘Positive’ and ‘Negative’ tropic movements in plants? 

 Mention the exact location of the following : 
Thylakoids 

The diagram given below represents an experiment to prove the importance of a  factor in photosynthesis. Answer the questions that follow : 

 Name the factor studied in this experiment. 

The diagram given below represents an experiment to prove the importance of a  factor in photosynthesis. Answer the questions that follow :

 What will you observe in the experimental leaf after the starch test? 

The diagram given below represents an experiment to prove the importance of a  factor in photosynthesis. Answer the questions that follow :

 Explain the process of Photosynthesis.

The diagram given below represents an experiment to prove the importance of a  factor in photosynthesis. Answer the questions that follow :
 Give a balanced chemical equation to represent the process of photosynthesis. 

 The diagram given below represents an experiment to prove the importance of a  factor in photosynthesis. Answer the questions that follow : 

 Draw a neat, labelled diagram of an experimental steup to show that oxygen is released during photosynthesis

 State the main functions of the following: 
Medulla Oblongata 

 State the main functions of the following:
Cytokinins