How can it be demonstrated that oxygen is a product of photosynthesis?
How can it be demonstrated that oxygen is a product of photosynthesis?
To prove that oxygen is a by-product of photosynthesis, you can set up an experiment with an aquatic plant and capture the gas it emits in response to photosynthesis. You will also set up a control condition where the plant will not be exposed to light, preventing photosynthesis.
Which aquatic plants are used in photosynthesis to prove o2 is released?
Why only hydrilla plant is used in the experiment to prove that oxygen is necessary for the photosynthesis. Because hydrilla is a small plant and hence easy to handle and also it is a aquatic plant so it is able to breath in water whereas land plants are not.
What plant is used in an experiment?
Plants for Rooting Experiments Bulbs and corms that are easy to obtain and use include: amaryllis. lily. iris.
What are the precautions to be taken in Hydrilla plant experiment?
The precautions to take while doing Hydrilla experiment:
- i) Fresh Hydrilla plants with obliquely cut stems to be used.
- ii) Should be placed inside funnel.
- iii) Ensure no outside air is trapped inside the water.
- iv) Glass apparatus should be used.
- v) Experimental setup should be placed in sunlight.
- Learn more about Hydrilla experiment.
How do you test the gas released in Hydrilla funnel experiment?
Invert the test tube full of water and cover the stem of the funnel. While placing the test tube, ensure that the level of the water in beaker is above the level of stem of funnel. Expose the apparatus to the sunlight. After few hours, gas bubbles will form and collect in the test tube.
Why is it necessary to Destarch a plant before performing an experiment?
A plant is destarched before performing any experiment in order to prevent photosynthesis. If starch is already present then it will create hindrance in determining the correct pathway of photosynthesis which results in the formation of food.
What would be the result if the Hydrilla experiment is done in shadow?
Answer. Explanation: Answer: when we put it in the dark places. there are almost no bubbles coming out in the water
What would be the result if the experiment is done in Shadow answer?
Answer. Answer: There would be lesser amount of light and the results would be different compared to the results of the experiment done in light
What precautions do you need while removing test tube from the beaker?
Explanation: Remove the test tube from the beaker in a slow and gentle manner. Prevent the escape of gas bubbles while removing the test tube from the funnel. Avoid unnecessary shaking of the apparatus while removing the test tube
Why do we use Destarched plant?
Destarching occurs in a plant when a part of a plant is “deprived of starch, as by translocation”. It is also the process of eliminating starch reserves in a plant for experiments concerning photosynthesis. This is done by leaving the plant(s) in a dark place for a long period of time.
What will happen if the plant is not Destarched?
If we do not exploration a plant before the effort, the starch wont get manipulated by the plant, and the starch will, however, occur on the leaf
Why was part of the leaf left uncovered?
In the experiment, light is essential for photosynthesis, the uncovered region of the leaf, receives sunlight and performs photosynthesis. The leaf, therefore turns blue-black after putting iodine in this area due to the production of starch.
Why only part of the leaf was covered with cardboard?
The uncovered part of the leaf undergoes photosynthesis and started forming glucose (then starch). But the covered area of the leaf didn’t take part in photosynthesis. Iodine give blue-black colour in the presence of starch. So the uncovered area of the leaf turns blue black, as it was containing starch.
Why part of the leaf is covered with Aluminium foil?
the part of the leaf is covered with foil or block paper , Where you block access to sunlight, the leaf can’t make more starch but that doesn’t mean the cells there stop working. Instead, they keep carrying on chemical reactions using the starch they made and stored previously, eventually consuming it.
What happens if you cover a leaf with black paper?
When a part of the leaf is covered from both upper and lower sides with a black paper strip, light will not reach to covered part. Hence, photosynthesis will not take place in covered part of the leaf.
What will happen to a plant if you keep it in a dark room?
But when a green plant is placed in a dark room, it will not get any light from sun. And so, it will not be able to perform the process called photosynthesis and hence will not get any energy and food. Eventually, the leaves will turn yellow and the plant will dry up and then will die.
What will happen if leaves of plants are covered with Vaseline?
The leaves of a healthy plant coated with vaseline will not remain healthy because the vaseline coating will block the stomata. As a result, The plant would not get oxygen for respiration. It would not get carbon dioxide to carry out photosynthesis
Why is it important to remove the green Colour from the leaf before adding iodine solution?
Green colour(chlorophyll) is removed from the leaf before testing the leaf with iodine solution. This is because this pigment would not give us the accurate results , and would make alterations in the results to be obtained. Hence, by removing cholorophyll from the leaves , we can obtain the most accurate result.
Why do we remove Green Colour of a leaf before testing it for starch?
We boil the leaf in alcohol when we are testing it for starch because to remove the green pigment chlorophyll present in it. Hence to remove the green pigment present in the leaf we boil the leaf in alcohol when we are testing it for starch.
Why is ethanol used to remove chlorophyll?
Do you know why chlorophyll can be removed from the leaf by ethanol? Ethanol is an organic solvent that causes the plant cells to become leaky. The chlorophyll inside the cells become available and dissolves in the ethanol