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Explain the Term Atp. - Biology

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प्रश्न

Explain the Term ATP.

एका वाक्यात उत्तर

उत्तर

ATP: Adenosine triphosphate, a small water-soluble molecule that acts as energy currency in cells.

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पाठ 5: Photosynthesis - Explain the Terms

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आईसीएसई Biology [English] Class 10
पाठ 5 Photosynthesis
Explain the Terms | Q 1

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the exact location of the Thylakoids


The figure given below represents an experimental setup with a weighing machine to demonstrate a particular process in plants. The experimental setup was placed in bright sunlight. Study the diagram and answer the following questions:

(i) Name the process intended for study.
(ii) Define the above mentioned process.
(iii) When the weight of the test tube (A & B) is taken before and after the experiment, what is observed? Give reasons to justify your observation in A & B.
(iv) What is the purpose of keeping the test tube B in the experimental setup?


 Given below is an experiment setup to demonstrate a particualr tropic movement in germinating seeds. Study the diagram and answer the questions that follow :
Part 1 is affected by two stimuli. Name them. Which one of the two is stronger? 

 Part 1 is affected by two stimuli. Name them. Which one of the two is stronger? 


Difference between an autotroph and a heterptroph. Give one example of each organism.

The following statement is about photosynthesis in a green plant. Write whether it is True or False.

A variegated leaf (one that has white as well as green patches) will only photosynthesize in the green areas.


The diagram alongside represents an experiment conducted to prove the importance of a factor in photosynthesis. 

Study the same and then answer the questions that follow: 
(i) Name the factor being studied in his experiment. 
(ii) Why was the plant kept in a dark room before conducting the experiment? 
(iii}Why was the experimental leaf then kept in 
1. boiling water 2. methylated spirit? 
(iv) Name the solution used to test for the presence of starch in the leaf. 
(v) What will we observe in the experimental leaf at the end of the starch test? 
(vi) Give a balanced chemical equation to represent the process of photosynthesis. 


Choose the correct answer:
Photosynthesis is more active in ___________


The rate of photosynthesis is not affected by


The specific function of light energy in the process of photosynthesis is to


Are the following statement true or false? Give a reason in support of your answer.

The rate of photosynthesis continues to rise as long as the intensity of light rises.


Are the following statement true or false? Give a reason in support of your answer.

If you immerse a leaf intact on the plant in ice cold water, it will continue to photosynthesise in bright sunshine.


Complete the following food chains by writing the names of appropriate organisms in the blanks:

Grass → ______ → Snake → ______


What is the importance of photosynthesis in the life of the following:

Animals


Name the molecules which are called assimilatory power? Why are they called so?


Give technical term:

Organisms which cannot prepare their own food by photosynthesis.


Complete the following sentence with appropriate word:

4OH ——> _____ + O2


Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:

Photosynthesis can also occur n artificial light such as that of a 100-watt electric lamp.


Choose the correct option.

Energy is transferred from the light reaction step to the dark reaction step by ______.


What will happen if we remove the fish from the aquarium and keep it (with green plants) in a dark place?


Draw the structure of the stomata and label the parts. 


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