1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
exis [7]
2 years ago
11

why do plant cells occasionally switch from noncyclic electron flow (nef) to cyclic electron flow (cef)?

Biology
1 answer:
Blizzard [7]2 years ago
6 0

Creating a proton gradient across the thylakoid membrane in higher plants uses cyclic electron flow (CEF), which primarily serves two purposes: (1) producing ATP and balancing the ATP/NADPH energy budget; and (2) defending photosystems I and II from photoinhibition.

ATP and NADPH are produced by noncyclic electron transport. The single product of cyclic electron transport was ATP. Both steps are required by a plant to produce the required amount of ATP for the Calvin Cycle. The electrons are released by photosystem I and then brought back into the system during cyclic photophosphorylation. However, in non-cyclic photophosphorylation, the electrons that the photosystems emit do not come back.

learn more about photosystems here;

brainly.com/question/13034934

#SPJ4

You might be interested in
How does temperature and the number of stomata relate?
Marrrta [24]

Answer:

A hot air temperature outside of the plant will increase the transpiration rate the movement of water up the plant and out of the stomata so having fewer stomata will help to combat this. Plant species in very humid or wet environments Hydrophytes will have more stomata as there is less need to conserve water

7 0
3 years ago
Who is Mendel? What did he study? Why was his research important
Eddi Din [679]

Answer:

Gregor Mendel was an Austrian monk who discovered the basic principles of heredity through experiments in his garden. Mendel's observations became the foundation of modern genetics and the study of heredity, and he is widely considered a pioneer in the field of genetics. He is known as the "father of modern genetics".

4 0
3 years ago
Pleaseee helpppp meee<3
bezimeni [28]

Answer:

Graph A

Explanation:

8 0
3 years ago
Read 2 more answers
Consider this plant cell which organelle is labeled G ?
fgiga [73]
If it’s on the yellow then is the Plasma membrane bit if it’s on the green then is the cell wall
8 0
3 years ago
Read 2 more answers
This chemical is linked to the beginning of childbirth and is thought to signal the uterus to begin contractions:
ASHA 777 [7]
I believe the answer is Corticotrophin releasing hormone. Corticotropin-releasing hormone is a peptide hormone involved in the stress response. It is a releasing hormone that belongs to corticotropin-releasing factor family. Its main function is the stimulation of the pituitary synthesis of ACTH, as part of the HPA axis.  The Corticotropin releasing hormone derived from the placenta is secreted into the maternal circulation in large amounts during the third trimester of human pregnancy and may have an important role in the onset of labor.
6 0
3 years ago
Other questions:
  • Which is not a function of antibodies? neutralize antigen. agglutinate or precipitate antigen. activate complement enhance phago
    14·1 answer
  • (02.06 MC)Which process adds carbon dioxide to the atmosphere?
    14·2 answers
  • Which substance helps break down starch during digestion
    9·1 answer
  • 2
    12·1 answer
  • Adaptations in a population may lead to the evolution of new species. Which word is associated with the process of evolution?
    13·1 answer
  • Why is the stereoscopic (3-D), binocular vision made possible by the forward facing eyes of the monkey advantageous to primates?
    10·1 answer
  • The __ era follows the end of the Paleozoic era
    9·1 answer
  • 3. which bond is broken when energy is released
    5·1 answer
  • 5) The following picture is of a single organism that has been Gram stained and is viewed under oil immersion on the compound li
    14·1 answer
  • Explain why bacteria are essential parts of the nitrogen cycle.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!