MEDIUM
10th ICSE
IMPORTANT
Earn 100

The diagram below illustrates iodine test for the presence of starch in a leaf.

 

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What is the composition of iodine solution in 100 ml of water?

Important Questions on Photosynthesis

MEDIUM
10th ICSE
IMPORTANT

Two potted plants are destarched by keeping them in dark for 48 hrs and then set up as shown in the below diagrams A and B. The bell jars are made airtight by putting vaseline at the bottom. They are kept in bright sunlight for 8-10 hrs and tested for starch.

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Why is KOH kept in jar A?

MEDIUM
10th ICSE
IMPORTANT

Two potted plants are destarched by keeping them in dark for 48 hrs and then set up as shown in the below diagrams A and B. The bell jars are made airtight by putting vaseline at the bottom. They are kept in bright sunlight for 8-10 hrs and tested for starch.

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Write the aim of the experiment?

MEDIUM
10th ICSE
IMPORTANT

Two potted plants are destarched by keeping them in dark for 48 hrs and then set up as shown in the below diagrams A and B. The bell jars are made airtight by putting vaseline at the bottom. They are kept in bright sunlight for 8-10 hrs and tested for starch.

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Why are the plants destarched?

MEDIUM
10th ICSE
IMPORTANT

Two potted plants are destarched by keeping them in dark for 48 hrs and then set up as shown in the below diagrams A and B. The bell jars are made airtight by putting vaseline at the bottom. They are kept in bright sunlight for 8-10 hrs and tested for starch.

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How are the leaves tested for starch?

MEDIUM
10th ICSE
IMPORTANT

Two potted plants are destarched by keeping them in dark for 48 hrs and then set up as shown in the below diagrams A and B. The bell jars are made airtight by- putting vaseline at the bottom. They' are kept in bright sunlight for 8-10 hrs and tested for starch.

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Why is KOH not kept in jar B?

MEDIUM
10th ICSE
IMPORTANT
Define photolysis of water.
MEDIUM
10th ICSE
IMPORTANT
Define photophosphorylation.
MEDIUM
10th ICSE
IMPORTANT
Define biosynthetic phase.