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प्रश्न
State the main functions of the following:
Cytokinins
उत्तर
Cytokinin are class of plant growth substances that promote cell division or cytokinesis in plant root and shoots.
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संबंधित प्रश्न
Give appropriate biological/technical terms for the following:
An apparatus that measures the rate of water uptake in a cut shoot due to transpiration.
Expand the following biological abbreviations: ATP
The diagram given below represents an experiment to prove the importance of a factor in photosynthesis. Answer the questions that follow :
Explain the process of Photosynthesis.
Answer the following:
Give the overall chemical equation of photosynthesis in green plants.
Name the following:
Three organisms that cannot prepare their own food by photosynthesis.
Identify the false statement and rewrite it correctly by changing the first or last word only.
Green plants are consumers.
The site of light reaction in the cells of a leaf is ______.
Complete the following food chains by writing the names of appropriate organisms in the blanks:
______ → Mouse ______ → Peacock
Name the membrane that connects thylakoid of one granum With the other granum.
What is meant by the photolysis of water?
What is the law of limiting factors?
Explain the term Plastoquinone.
Give technical term:
The main reaction which means the breaking up of water molecules through light.
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.
Write the functional activity of the following structure:
Stroma
Column ‘II’ is a list of items related to ideas in Column ‘I’. Match the term in Column ‘II’ with the suitable idea given in Column ‘I’.
| Column I | Column II | ||
| (i) | Grana | (a) | Decomposers |
| (ii) | Autotrophs | (b) | Light reaction |
| (iii) | By-products of photosynthesis | (c) | Animals |
| (iv) | Photolysis | (d) | Oxygen |
| (v) | Bacteria and fungi | (e) | Stimulated by light |
| (vi) | Chloroplast | (f) | Power |
| (vii) | Oxygen and water | (g) | Raw material |
| (viii) | Sunlight | (h) | Machinery |
| (ix) | CO2 and water | (i) | End products |
| (x) | Glucose (sugar) | (j) | Workrooms |
| (xi) | Cells in the leaf | (k) | By-products. |
Choose the correct option.
A cell that lacks chloroplast does not ______.
Choose the correct option.
For fixation of 6 molecules of CO2 and formation of one molecule of glucose in Calvin cycle, requires
Define photosynthesis.
What are stomata?
