Experiments of Photosynthesis
Important Questions on Experiments of Photosynthesis
A small piece of aquatic plant is taken in a test tube with pond water and kept in bright sunlight for 5-6 hrs. Bubbles of gas are coming out which gradually decrease when the intensity of sunlight decreases and no bubbles will evolve in complete darkness.
Why does the evolution of bubbles completely stop at night?
A small piece of aquatic plant is taken in a test tube with pond water and kept in bright sunlight for 5-6 hrs. Bubbles of gas are coming out which gradually decrease when the intensity of sunlight decreases and no bubbles will evolve in complete darkness.
Why are the bubbles decreasing in dim light? Name the gas that evolved in bright light.
A small piece of aquatic plant is taken in a test tube with pond water and kept in bright sunlight for 5-6 hrs. Bubbles of gas are coming out which gradually decrease when the intensity of sunlight decreases and no bubbles will evolve in complete darkness.
What is the importance of this process to us?
A small piece of aquatic plant is taken in a test tube with pond water and kept in bright sunlight for 5-6 hrs. Bubbles of gas are coming out which gradually decrease when the intensity of sunlight decreases and no bubbles will evolve in complete darkness.
Write the equation of the process.
A small piece of aquatic plant is taken in a test tube with pond water and kept in bright sunlight for 5-6 hrs. Bubbles of gas are coming out which gradually decreases when the intensity of sunlight decreases and no bubbles will evolve in complete darkness.
Name the process.
A small piece of aquatic plant is taken in a test tube with pond water and kept in bright sunlight for 5-6 hrs. Bubbles of gas are coming out which gradually decrease when the intensity of sunlight decreases and no bubbles will evolve in complete darkness.
What is the aim of the experiment?
Define destarching.
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.
Why is KOH not kept in jar B?
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.
How are the leaves tested for starch?
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.
Why are the plants destarched?
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.
Write the aim of the experiment?
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.
Why is KOH kept in jar A?
The diagram below illustrates iodine test for the presence of starch in a leaf.
What is the composition of iodine solution in 100 ml of water?
The diagram below illustrates iodine test for the presence of starch in a leaf.
Why is the leaf again boiled in hot water?
The diagram below illustrates the iodine test for the presence of starch in a leaf.
Why will the colour of leaf after boiling it with methylated spirit turn pale white?
The diagram below illustrates iodine test for the presence of starch in a leaf.
Why is the leaf boiled in water for few minutes?
The figure below represents an experiment performed to demonstrate a particular aspect of photosynthesis. The apparatus was kept in sunlight for almost the whole day. The numeral 1 represents a certain condition inside the flask and numeral 2 represents a chemical responsible for this condition.
Write the overall chemical equation for the process of respiration.
The figure below represents an experiment performed to demonstrate a particular aspect of photosynthesis. The apparatus was kept in sunlight for almost the whole day. The numeral 1 represents a certain condition inside the flask and numeral 2 represents a chemical responsible for this condition.
Name the process which is reverse of photosynthesis in terms of the end products.
The figure below represents an experiment performed to demonstrate a particular aspect of photosynthesis. The apparatus was kept in sunlight for almost the whole day. The numeral 1 represents a certain condition inside the flask and numeral 2 represents a chemical responsible for this condition.
In what way will the three leaves (A, B and C) differ at the end of the experiment, when tested with iodine solution?
The figure below represents an experiment performed to demonstrate a particular aspect of photosynthesis. The apparatus was kept in sunlight for almost the whole day. The numeral 1 represents a certain condition inside the flask and numeral 2 represents a chemical responsible for this condition.
What is the chemical substance numbered 2?
