Embibe Experts Solutions for Exercise 1: ICSE-2018

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:

(i) What aspect of photosynthesis is being tested in the above diagram?

(ii) Represent the process of photosynthesis in the form of a balanced equation.

(iii) Why was the plant kept in the dark before beginning the experiment?

(iv) What will be the result of the test performed on leaf ‘A’ shown in the diagram ? Give an example of a plant with variegated leaves.

(v) Draw a neat labelled diagram of a chloroplast.

Give suitable biological reasons for the given statement:

Explain the following term:
Photolysis

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

What is the purpose of keeping KOH in the flask?

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

Explain the term Photosynthesis.

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 when the leaf A is tested for starch?

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

Write a well-balanced chemical equation for the process of photosynthesis.

Name the following:

The process of transformation of several glucose molecules into one molecule of starch.