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प्रश्न
Explain the term Phosphorylation.
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उत्तर
Phosphorylation: The covalent attachment of a phosphate group to a molecule.
संबंधित प्रश्न
Give biological reasons for the following statements : In some xerophytes leaves are modified into spines
Fig. demonstrates a physiological process taking place in green plants. The whole set-up was placed in bright sunlight for several hours. Study the diagram and answer the questions that follow:
- What aspect of the physiological process is being examined?
- Explain the physiological process mentioned in (a) above.
- Label the parts numbered 1 and 2 in the diagram.
- Write a well-balanced chemical equation for the physiological process explained in (b) above.
- What would happen to the rate of bubbling of the gas if a pinch of sodium bicarbonate is added to the water in the beaker? Explain your answer.
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) __________.
State the main functions of the following:
Medulla Oblongata
Fill in the blank:
CO2 enters the leaf through ______.
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 minerals like nitrogen, potassium, and phosphorus, which are required in substantial quantity by the plants are called ______.
Name the minute openings seen on the lower surface of the leaf.
Assertion (A): All food chains begin with herbivores.
Reason (R): Green plants are heterotrophs.
