1. Describe conditions necessary for photosynthesis.
2. What are the features that make a leaf suitable place for photosynthesis to occur?
3. Give differences between autotrophic and heterotrophic nutritions.
4. Cuscuta is without leaves and without chlorophyll. How does it obtain food?
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Answers
Answer:
1.For photosynthesis, presence of carbon dioxide, water, chlorophyll and sunlight is required. ... Plants use water to help break down carbon dioxide so its components can be combined with those in water to form sugar molecules.
2.The features that make a leaf suitable place for photosynthesis to occur are: - It has stomata on its surface which open and close due to the activity of the guard cells and helps in getting carbon dioxide for plants from the air and also helps in releasing oxygen through it.
3.Autotrophs are organisms that prepare their own food through the process of photosynthesis, whereas heterotrophs are organisms that cannot prepare their own food and depend upon autotrophs for nutrition.”
4.CUSCUTA IS A PARASITE. A PARASITE IS A MODE OF PLANT NUTRITION IN WHICH THE PLANT IS DEPENDENT ON OTHER PLANT FOR ITS FOOD AND SHELTER. AND THE PLANT ON WHICH IT IS DEPENDENT IS CALLED A HOST. THUS CUSCUTA GETS ITS FOOD FROM ITS HOST THAT HAS CHLOROPHYLL AND LEAVES.
1)For photosynthesis, presence of carbon dioxide, water, chlorophyll and sunlight is required. ... Plants use water to help break down carbon dioxide so its components can be combined with those in water to form sugar molecules
2)The features that make a leaf suitable place for photosynthesis to occur are: - It has stomata on its surface which open and close due to the activity of the guard cells and helps in getting carbon dioxide for plants from the air and also helps in releasing oxygen through it.
3)In autotrophic nutrition, organisms prepare their own food. In heterotrophic nutrition, organisms do not prepare their own food. Autotrophs are the producers in the food chain. Heterotrophs are the consumers in the food chain. Autotrophs use simple substances from surroundings to produce food.
4)CUSCUTA IS A PARASITE. A PARASITE IS A MODE OF PLANT NUTRITION IN WHICH THE PLANT IS DEPENDENT ON OTHER PLANT FOR ITS FOOD AND SHELTER. AND THE PLANT ON WHICH IT IS DEPENDENT IS CALLED A HOST. THUS CUSCUTA GETS ITS FOOD FROM ITS HOST THAT HAS CHLOROPHYLL AND LEAVES.
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