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

Given below is the overall chemical equation of photosynthesis which is incomplete in certain respects.

\[\ce{CO2 + H2O  ->[Chlorophyll] C6H12O6 + H2O + O2} \]

Rewrite the equation in its complete form .

Describe an experiment to prove that sunlight is necessary for photosynthesis.

(i) Fill in the blanks in the following equations of two chemical reactions:

(a) \[\ce{---+12H2O->[Light energy]C6H12O6 + --- + ----}\]

(b) \[\ce{--- 6O2->[Chlorophyll] 6 --- +6 ---- + Energy}\]

(ii) Name the two processes represented by the above two reactions. 

(iii) State any two differences in these processes other than those already indicated in the reactions. 

(iv) Which one of these two reactions is the supporter of all life on earth? 

A potted destarched plant was taken in order to prove that light is necessary for photosynthesis.
(i) What is meant by 'destarched plant'? How can it be destarched?
(ii) Using the destarched plant describe step by step how you would proceed to prove that in the absence of light the leaf cannot manufacture starch.

Choose the correct answer:
The amount of water present in blood plasma is __________

Name the following:
Gland secreting adrenaline

Name the hormone responsible for the following function:
Increase in heartbeat

Name the hormone responsible for the following function:
Prepares the body during emergency

Name the hormone responsible for the following function:
Increased blood supply to muscles.

Choose the correct answer:
Adrenaline is secreted by ___________

The diagram given below represents an experimental set – up to demonstrate a certain process. Study the same and answer the questions that follow: 

Define the above named process.

The diagram given below represents an experimental set – up to demonstrate a certain process. Study the same and answer the questions that follow: 

what would you observe in the experimental set-up after an hour or so?

The diagram given below represents an experimental set – up to demonstrate a certain process. Study the same and answer the questions that follow: 

what control experiment can be set up for comparison? 

The diagram given below represents an experimental set – up to demonstrate a certain process. Study the same and answer the questions that follow: 

Keeping in mind the root- hair, cell and its surroundings, name the parts that correspond to

(1) concentrated sugar solution

(2) parchment paper and

(3) water in the beaker.

The diagram given below represents an experimental set – up to demonstrate a certain process. Study the same and answer the questions that follow: 

Name any other substance that can be used instead of parchment paper in the above experiment.

The diagram given below represents an experimental set-up to demonstrate a certain process. Study the same and answer the questions that follow: 

Mention two advantages of the process to the plants.

Identify the false statements and rewrite them correctly by changing the first or last word only.

Starch produced in a leaf remains stored in it for 2-3 weeks before it is used by other parts of the plant.

In the flowering plants, food is transported in the form of ______.

Enumerate the steps involved in testing a green leaf for the presence of starch.