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

Choose the correct answer:

Absorption of water from soil takes place by __________

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In ascent of sap water reaches upwards ____________

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The water is translocated upwards from the roots through _____________

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Exudation or bleeding is associated with ___________

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 Wilting of plants occurs when ____________

Answer the following:

Give the overall chemical equation of photosynthesis in green plants.

Answer the following:

Mention two significant advantages of photosynthesis to the living world as a whole.

Define the following:

Plant pigments

Define the following:

Quantum

Define the following:

Organic food

Distinguish between the following:
Photosynthesis and photophosphorylation.

The figure given below represents the vertical section of a leaf.
( i) Name the parts labeled 1 to 5.
( ii ) What do the two arrows (dotted and solid) indicate in the daytime and at night?
( iii) Could you add one more arrow in the figure? If yes, what for?
( iv) How many leaf veins have been shown in this section?

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

Mention any two points in which photosynthesis and respiration in plants are opposite to each other.

What is meant by photosynthesis? Why is it so important in nature?

An experiment was set up as shown in the figure alongside. Look at the figure and answer the following questions:
( i) What is the objective of this experiment?
( ii ) Which plant is used in this experiment?
( iii ) Which gas is evolved in this process?
( iv ) What will happen to the rate of evolution of this gas if a pinch of sodium
bicarbonate is added?
(v ) What will happen if the apparatus is kept in dark?

Mention two ways in which photosynthesis is useful to life.