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प्रश्न
Active transport involves ______
विकल्प
movement of molecules from lower to higher concentration
expenditure of energy
it is an uphill task
all of the above
उत्तर
Active transport involves all of the above.
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संबंधित प्रश्न
The Biological/technical term for The process of uptake of mineral ions against the concentration gradient using energy from the cell
Fill in the blank with the suitable term given below:
Transportation in plants is carried out by a __________ system.
Fill in the blank with the suitable term given below:
The upward movement of sap that contains water and minerals is called _______ of sap.
Fill in the blank with the suitable term given below:
Most water gets evaporated from the plant from its __________.
is the following statement true (T) or false (F)? Mark T or F
‘Girdling experiment’ demonstrates food synthesis in plants.
Identify the CORRECT statement about the active absorption of water.
Identify the INCORRECT statement from the following.
Pumps are related to
Define the following term:
Active transport
Three cylinders of potato were carefully dried on blotting paper and weighed. Each piece weighed 3 grams. Each one was placed in the beaker as shown below:
Answer the following questions:
- After 48 hours, which potato cylinder would be the heaviest?
- The movement of which substance is mainly responsible for the weight change in the potato cylinders?
- Name and define the process which is responsible for the movement of the substance mentioned in answer (b).
- Write specific names of the processes which occur in beakers B and C. [kinds of processes defined in answer (c)].
- Would there be any difference in the weight of the potato cylinder in beaker A after 48 hours? Give reason.
