Assertion :Upward movement of water is called as ascent of sap. Reason: Upward movement of water occurs through xylem and phloem.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Assertion is correct but Reason is incorrect.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Both Assertion and Reason are incorrect.

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D Both Assertion and Reason are incorrect.
The ascent of sap refers to the upward movement of water and minerals from the root to the tip through the xylem tissue of plants. It is very important to note that the water that is transported all along the length of the stem is not just water but is a solution of water containing various inorganic and organic components, thus the term 'ascent of sap'. Further, the upward movement of water takes place through xylem cells while the phloem transports food from the leaves to the rest of the plant.
So, the correct answer is option D.

Suggest Corrections

Similar questions

Q. Assertion: The compressibility factor for

H_{2}

and

H e

(1 + \frac{P b}{R T})

Reason: The compressibility factor for

H_{2}

and

H e

can be derived from Van der Waal's equation.

Assertion (A) Order of the reaction can be zero or fractional.

Reason (R) We cannot determine order from balanced chemical equation.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

Assertion (A) Rate constant determined from Arrhenius equation are fairly accurate for simple as well as complex molecules.

Reason (R) Reactant molecules undergo chemical change irrespective of their orientation during collision.

Assertion (A) Order and molecularity are same.

Reason (R) Order is determined experimentally and molecularity is the sum of the stoichimetric coeffcient of rate determining elementary step.

Q. Assertion
If BOD level of water in reservoir is less than 5 ppm it is not polluted.

Reason
High biological oxygen demand means low activity of bacteria in water.

Join BYJU'S Learning Program