Translocation
Trending Questions
Q. Identify the correct statements:
i. The absorption of mineral ions takes place in two phases.
ii. The passive phase involves the movement of ions through symplast pathway.
iii. The active phase involves the use of pumps.
i. The absorption of mineral ions takes place in two phases.
ii. The passive phase involves the movement of ions through symplast pathway.
iii. The active phase involves the use of pumps.
- Only i is correct
- Only ii is correct
- Only i & ii are correct
- Only i & iii are correct
Q. Select the incorrect statement.
- The process of absorption of minerals takes place in two main phases - apoplast and symplast
- The movement of ions is usually called the inward movement into the cells is influx and the outward movement is efflux
- The entry of ions to the apoplast requires the expenditure of metabolic energy
- The movement of ions into the apoplast usually occurs through ion-channels and trans-membrane proteins
Q. Mycorrhiza is a symbiotic association of fungus with root system which helps in
A: Absorption of water
B: Mineral nutrition
C: Translocation
D: Gaseous Exchange
A: Absorption of water
B: Mineral nutrition
C: Translocation
D: Gaseous Exchange
- Only B
- both B and C
- c. both A and B
- Only A
Q. Select the correct match
- Efflux - Inward movement of ions into a cell
- Apoplast - movement of ions in the outer space of cells
- Active uptake - Initial rapid mineral uptake
- Passive uptake - Slow, second phase of mineral uptake
Q. Food in plants is translocated in the form of
- Glucose
- Starch
- Sucrose
- Fructose
Q. Identify the correct statements:
i. The absorption of mineral ions takes place in two phases.
ii. The passive phase involves the movement of ions through symplast pathway.
iii. The active phase involves the use of pumps.
i. The absorption of mineral ions takes place in two phases.
ii. The passive phase involves the movement of ions through symplast pathway.
iii. The active phase involves the use of pumps.
- Only i & ii are correct
- Only i is correct
- Only ii is correct
- Only i & iii are correct
Q. Which of the following is accomplished in a plant by utilising the energy stored in ATP ?
Q. How many radial spokes are there in a flagellum?
- 9
- 10
- 2
- 9+2
Q. Phloem parenchyma is absent in_____________
- Dicot leaf
- Monocot stem
- Dicot stem
- Dicot root
Q. The cortex does not differentiate in
- monocot stem
- dicot stem
- monocot root
- dicot root
Q. What happens to the walls of distal convoluted tubule (DCT) of a nephron when vasopressin is released by the pituitary into the stream?
Q. Assertion :Long distance flow of photoassimilates in plants occurs through sieve tubes. Reason: Mature sieve tubes have parietal cytoplasm and perforated sieve plates.
- Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
- Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
- Assertion is correct but Reason is incorrect.
- Assertion is incorrect but Reason is correct.
Q. Choose the correct answer from the alternatives given.
The tissue responsible for transport of organic nutrients from the source is
The tissue responsible for transport of organic nutrients from the source is
- phloem
- ray parenchyma
- bast fibres
- xylem
Q. Identify the correct statements:
i. The absorption of mineral ions takes place in two phases.
ii. The passive phase involves the movement of ions through symplast pathway.
iii. The active phase involves the use of pumps.
i. The absorption of mineral ions takes place in two phases.
ii. The passive phase involves the movement of ions through symplast pathway.
iii. The active phase involves the use of pumps.
- Only i & ii are correct
- Only i is correct
- Only ii is correct
- Only i & iii are correct
Q. How many radial spokes are there in a flagellum?
- 9
- 10
- 2
- 9+2
Q. Select the correct statement(s) pertaining to transpiration process in plants:
I. It is a necessary evil for plants.
II. Loss of water takes place through hydathodes in vapour form.
Ill. It may also occur through lenticels.
IV. The process is active during night in C3 plants.
I. It is a necessary evil for plants.
II. Loss of water takes place through hydathodes in vapour form.
Ill. It may also occur through lenticels.
IV. The process is active during night in C3 plants.
- I and IV are correct
- II and IV are correct
- I and Ill are correct
- Ill and IV are correct