[1 Mark Question Answer]

Question 11 Mark

Photophosphorylation

Answer

Photophosphorylation- It is defind as the process of formation of energy rich compound i.e; ATP from ADP and inorganic phosphate utilising light energy.
$
ADP+Pi \xrightarrow{\text { Sunlight }} ATP
$

1. Photosynthesis
2. Chloroplast
3. Compensation point
4. Photolysis
5. Destarched plant
6. Photophosphorylation

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Question 21 Mark

Destarched plant

Answer

Destarched plant-A plant is said to be a 'destarched plant' when it has no starch in its leaves. The leaves remain or appear yellowish-brown when tested for the presence of starch by using iodine solution.

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Question 31 Mark

Photolysis

Answer

Photolysis- 'Photo' meaning 'light' and 'lysis' meaning 'breaking up'. Photolysis is defined as the reaction which involves the breaking up of water molecules through light into $H ^{+}$and $OH ^{-}$ions.

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Question 41 Mark

Compensation point

Answer

Compensation point- It is defined as the point where the rate of photosynthesis is same to the rate of respiration. The net carbon dioxide assimilation is zero.

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Question 51 Mark

Chloroplast

Answer

Chloroplast- They are the green plastids found in green parts of plants such as leaves and soft stem. They are sites of photosynthesis. They contain green pigment known as chlorophyll, important for photosynthesis to occur.

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Question 61 Mark

Photosynthesis

Answer

Photosynthesis- Photosynthesis can be defined as the process by which green plants manufacture their food (glucose) by utilising the atmospheric carbon dioxide and water from the soil in the presence of sunlight.
$
\underset{\text { (Carbon dioxide) }}{6 CO_2}+\underset{\text { (water) }}{12 H_2 O} \longrightarrow \underset{\text { (Glucose) }}{C_6 H_{12} O_6}+\underset{\text { (Oxygen) }}{6 O_2}+\underset{\text { (Water) }}{6 H_2 O}$

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Question 71 Mark

The first form of food produced during photosynthesis

Answer

Glucose

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Question 81 Mark

A plant which does not perform photosynthesis

Answer

Saprophytic plants (coral root, Indian pipe)

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Question 91 Mark