CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
Question

In the following question, a statement of assertion is followed by a statement of reason. Mark the correct choice as:
Assertion: Translocation of sugar from source (leaf) to sink is defined as pressure flow hypothesis
Reason: Translocation of the solute is facilitated through living phloem sieve tube cells.


A

If both assertion and reason are true and reason is the correct explanation of assertion.

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

If both assertion and reason are true but reason is not the correct explanation of assertion.

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

If assertion is true but reason is false.

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

If both assertion and reason are false.

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

The correct option is B

If both assertion and reason are true but reason is not the correct explanation of assertion.


The accepted mechanism for the translocation of sugars from source to sink is called pressure flow hypothesis. The glucose is prepared at the source by photosynthesis, it is converted to sucrose (a disaccharide). The sugar is then moved in the form of sucrose into the companion cells and then into living phloem, sieve tube cells by active transport.


flag
Suggest Corrections
thumbs-up
2
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Phloem Transport
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon