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प्रश्न
A candidate studied the importance of certain factors in photosynthesis. He took a potted plant and kept in the dark for over 24 hours. In the early hours of the next morning, he covered one of the leaves with black paper in the centre only. Then he placed the plant in sunlight for a few hours and tested the leaf which was covered with black paper for starch.
Is there any control in this experiment? If so, state it.
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उत्तर
Yes. The other uncovered leave of the potted plant act as a control.
संबंधित प्रश्न
The process of conversion of ADP into ATP during photosynthesis.
Complete the following paragraph by filling in the blank (1) to (5) with appropriate words:
To test a leaf for starch, the leaf is boiled in water to (1) _________. It is then boiled in Methylated spirit to (2) ________. The leaf is dipped in warm water to soften it. It is placed in a petri dish, and (3) _____ solution is added. The region of the leaf which contains starch, turns (4) ________and the region while does not contain starch, turns (5) __________.
Given below is an experiment setup to demonstrate a particualr tropic movement in germinating seeds. Study the diagram and answer the questions that follow : 
What is Thigmotropism? Give one example.
State the main functions of the following:
Medulla Oblongata
Identify the false statement and rewrite it correctly by changing the first or last word only.
Green plants perform photosynthesis.
Which one of the following is a primary producer?
______ is positively hydrotropic as well as positively geotropic.
Name the plant part
- Which bends in the direction of gravity but away from the light.
- Which bends towards light but away from the force of gravity.
The swollen basal part of the ______ pistil is the which bears the ______.
Assertion (A): All food chains begin with herbivores.
Reason (R): Green plants are heterotrophs.
