EASY
Earn 100

Explain the needs of long distance transport in plants.

Important Questions on Transport in Plants

HARD
How does ascent of sap occur in tall tree?
HARD
How does ascent of sap takes place in tall trees?
EASY
Will the ascent of sap be possible without the cohesion and adhesion of the water molecules? Explain.
MEDIUM
List the three prominent theories to explain water translocation in trees. Describe the most accepted theory out of these?
MEDIUM
According to Sachs theory, the ascent of sap takes place:
HARD
Water molecule is very polar. The polar end of the molecule attracts opposite charges on another water molecule (acts like a magnet). How will you explain this property of water with reference to the upward movement of water? Comment on the upward movement of water given the intermolecular hydrogen bonding in water.
MEDIUM
Find odd one out w.r.t. propounders of vital force theories.
HARD
Discuss the factors responsible for ascent of xylem sap in plants.
EASY
Incorrect statement in relation to forces involved in transpiration driven ascent of xylem sap is
HARD
Which of the following helps in ascent of sap?
MEDIUM
Force generated by transpiration creates pressure sufficient to lift a xylem-sized column of water over ____.
EASY
Which process is favoured by transpiration?
MEDIUM
What is ascent of sap? Explain cohesion-tension theory for it?
HARD
How does ascent of sap occur in plants?
MEDIUM

Represent the union of two sets by Venn diagram for each of the following.

X={x | x is a prime number between 80 and 100}

Y={y | y is an odd number between 90 and 100}