Tag: mineral transport
Questions Related to mineral transport
Cohesion transpiration pull theory of ascent of sap was proposed by
Match the lists and find the correct option
LIST I | LIST II | ||
---|---|---|---|
A. | Henry Dixon | 1. | Bioelectric response |
B. | Slatyer and Taylor | 2. | Cohesion tension theory |
C. | Levitt | 3. | Active proton concept |
D. | J. C. Bose | 4. | Water potential |
5. | Term physiology |
Mass flow hypothesis was put forward by
Choose the correct answers from the alternatives given.
An example of selectively permeable membrane is
According to mass flow hypothesis
(a) Sucrose is moved into the companion cells and then into the sieve tube by passive transport.
(b) Inside the phloem, an osmotic pressure gradient is generated that facilitates the mass movement in the phloem.
(c) Water in the adjacent xylem moves into the phloem by active process
Which of the following is related with transfer of food material?
Leaf photosynthates are transported to other parts of higher plants through
By many evidences, it can be known that the downward movement of food takes place through
How many of the following features are related to Dixon and Jolly model of water transport in plants?
a. Cohesion between water molecules
b. Transpiration pull
c. Pushing of water by negative root pressure
d. Surface tension
e. Pushing of water by positive root pressure.
Bulk flow or mass flow.
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