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You can perform an experiment to show that chlorophyll is necessary by using a a potted plant having variegated leaves.(This ia a leaf having several different colours) Destarch the plant by keeping it in the dark for several days. During this time, no more starch is made and the starch present is used up in respiration. The plant is then placed in strong sulinght fo a few hours. Remove one leaf and test for starch with iodine solution. You will notice that the non-green parts of the leaf turns reddish brown due to the absence of starch. However, the green parts of the leaf turns blue black confirming the presence of starch. Hence, it is demonstrated that chlorophyll is needed in plants.

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16y ago
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6mo ago

Chlorophyll is essential for plants as it is a pigment that enables photosynthesis, the process by which plants convert sunlight into energy. If plants lack chlorophyll, they would not be able to produce their own food and would eventually die due to the lack of energy. This can be demonstrated by comparing the growth and health of plants with chlorophyll versus those without it under controlled conditions.

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Q: How would you demostate the need for chloropyhll in plants?
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Why do animals need plants and why do plants need animals?

Animals need plants for food and oxygen, while plants need animals for pollination, seed dispersal, and nutrient recycling through decomposition. This mutual relationship is essential for the ecosystem to function properly and for the survival of both animals and plants.


What is the food plants need to live?

Plants need sunlight, water, carbon dioxide, and nutrients from the soil to live. These elements are used in photosynthesis, the process by which plants create food for themselves. Without these essential components, plants would not be able to survive.


Do plants underwater need sun to survive?

Yes, plants underwater do need sunlight to survive. Sunlight is essential for photosynthesis, the process by which plants make their own food. Without sunlight, underwater plants would not be able to produce the energy they need to grow and carry out other essential functions.


What do the plants need for survival?

Plants need sunlight, water, nutrients from soil, and carbon dioxide to survive. These are essential for photosynthesis, which is the process through which plants produce their own food.


Why is the sun so important to the plants?

The sun is essential for plants because they use a process called photosynthesis to convert sunlight into energy, which allows them to grow and thrive. Without sunlight, plants would not be able to create the nutrients they need to survive and carry out vital functions such as growth, reproduction, and storing energy. In essence, the sun is the primary source of energy for plants.

Related questions

Why do animals need plants and why do plants need animals?

Animals need plants for food and oxygen, while plants need animals for pollination, seed dispersal, and nutrient recycling through decomposition. This mutual relationship is essential for the ecosystem to function properly and for the survival of both animals and plants.


What would the world be if there were no plants?

Well there wouldn't be a world because you need plants to breathe.


What do animals need but plants don't?

That would be oxygen.


What would happen if carbon dioxide (co2) was removed from a plants environment?

The plant would die. Plants need co2 to make oxygen which humans and animals need to exist.


Why do you the world need plants?

Plants take in the CO2 we exhale and turn it into oxygen that we inhale. W/o plants, we would suffocate.


Why do you need plants in the world?

Plants take in the CO2 we exhale and turn it into oxygen that we inhale. W/o plants, we would suffocate.


Would it still grow even though it is in the dark?

If you are talking about plants, then no, it would not grow in the dark. It would need sunlight. Most plants grown in the dark.


When would weather be useful?

Well we need rain to water plants and keep everything alive. we need wind to blow the seeds of plants to other places. without wind we would need to plant everything ourselves


Why is light is so important?

Plants need light to make food, we need light to see, and without plants animals wouldn't eat, without animals and plants we would die.


What would happen without air?

Well if there were no oxygen then all animals would probably die except plants because all they need is carbon dioxide plants would die without us as plants need us to inhale the oxygen they make then exhale the carbon dioxide that they need. our relationship with plants is interdependant meaning we could not survive without each other


Why fertilizer are important for plants?

In the same way food is important to you. Fertilizers contain essential ingridients plants need. If plants didn't have it they would die like we would without food.


Why don't plants grow in detergent?

Like us plants need nutrients to grow, detergent would be a poison