ct one: a. In apoplastic loading, the solute potential of the companion cells is more negative than the apoplastic space nearby. b. Apoplastic phloem unloading enables the import of sugars against their concentration gradient into sink tissue. C. In apoplastic loading, proton pumps create electrochemical gradients that can be used by symporter proteins to import sugars into the companion cell. d. All the statements are true. e. Symplastic loading relies on diffusion of the sugars through plasmodesmata from photosynthetic cells to the phloem cells.
ct one: a. In apoplastic loading, the solute potential of the companion cells is more negative than the apoplastic space nearby. b. Apoplastic phloem unloading enables the import of sugars against their concentration gradient into sink tissue. C. In apoplastic loading, proton pumps create electrochemical gradients that can be used by symporter proteins to import sugars into the companion cell. d. All the statements are true. e. Symplastic loading relies on diffusion of the sugars through plasmodesmata from photosynthetic cells to the phloem cells.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
Related questions
Question
When considering the loading and unloading of photosynthate from the phloem, which of the following is FALSE?
![[PLANT PHYSIOLOGY] When considering the loading and unloading of photosynthate from the phloem, which of the following is FALSE?
Select one:
O a.
In apoplastic loading, the solute potential of the companion cells is more negative than the apoplastic space nearby.
Ob.
Apoplastic phloem unloading enables the import of sugars against their concentration gradient into sink tissue.
In apoplastic loading, proton pumps create electrochemical gradients that can be used by symporter proteins to import sugars into the
companion cell.
o d. All the statements are true.
O e.
Symplastic loading relies on diffusion of the sugars through plasmodesmata from photosynthetic cells to the phloem cells.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F40cbeb66-d88d-4e01-b4b5-1176e5b78ecf%2F4f5e85f8-e6ea-46a2-89ae-fac8b59a894e%2F6l25wg8_processed.jpeg&w=3840&q=75)
Transcribed Image Text:[PLANT PHYSIOLOGY] When considering the loading and unloading of photosynthate from the phloem, which of the following is FALSE?
Select one:
O a.
In apoplastic loading, the solute potential of the companion cells is more negative than the apoplastic space nearby.
Ob.
Apoplastic phloem unloading enables the import of sugars against their concentration gradient into sink tissue.
In apoplastic loading, proton pumps create electrochemical gradients that can be used by symporter proteins to import sugars into the
companion cell.
o d. All the statements are true.
O e.
Symplastic loading relies on diffusion of the sugars through plasmodesmata from photosynthetic cells to the phloem cells.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Biology 2e
Biology
ISBN:
9781947172517
Author:
Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:
OpenStax
Anatomy & Physiology
Biology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Biology 2e
Biology
ISBN:
9781947172517
Author:
Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:
OpenStax
Anatomy & Physiology
Biology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:
9780815344322
Author:
Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:
W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:
9781260159363
Author:
Martin, Terry R., Prentice-craver, Cynthia
Publisher:
McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Biology
ISBN:
9781260231700
Author:
Sylvia S. Mader, Michael Windelspecht
Publisher:
McGraw Hill Education