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
Elina [12.6K]
3 years ago
11

The rate of O₂ production by the light reactions varies with the intensity of light because light is required as the energy sour

ce for O₂ formation. Thus, lower light levels generally mean a lower rate of O₂ production. In addition, lower light levels also affect the rate of CO₂ uptake by the Calvin cycle. This is because the Calvin cycle needs the ATP and NADPH produced by the light reactions. In this way, the Calvin cycle depends on the light reactions. But is the inverse true as well? Do the light reactions depend on the Calvin cycle?
Biology
1 answer:
Paraphin [41]3 years ago
5 0

Answer:

No, the light-dependent reactions doesn´t depend on the Calvin Cycle

Explanation:

While the Calvin cycle produces ADP and NADP+, both of which are photophosphorylated by the light-dependent reactions, there is another carbon cycle, called PHOTORESPIRATION, in which the enzyme RuBisCO (RuBP oxygenase-carboxylase), OXYGENATES RuBP (ribulose-1,5-bisphosphate), instead of the CARBOXYLATION OF RuBP (the normal Calvin Cycle), releasing 3CO2 and spending ATP and NADPH (produced by the light-dependent reactions), thus, providing the ADP and NADP+ photophosphorylated by the light-dependent reactions.

PHOTORESPIRATION results in a NET LOSS of fixated carbon, and is activated by certain conditions like HIGH TEMPERATURE and LOWER CO2 AVAILABILITY (due to CLOSED STOMATA as a response to droughts). However, the main functions of this system are not clear. It may be involved in nitrate assimilation, free radicals regulation, plant growth, homeostasis of plant cells, among others.

You might be interested in
According to the preface to The Pluto Files, what best describes the information the book will include?
julia-pushkina [17]
According to the preface to The Pluto Files, what best describes the information the book will include a record of Pluto's rise and fall as a planet. The said book was originally published last January 26, 2009 by the author <span>Neil deGrasse Tyson.</span>
8 0
3 years ago
Read 2 more answers
Where are pesticides found in the environment?
Lera25 [3.4K]
It is d because pesticides run off into water, they are absorbed into soil , and they are left in the air , hope this helps :)
7 0
2 years ago
Which term is used to describe a fact that has always been observed true but could at some future time not be observed as true.A
kotegsom [21]

<u>Answer:</u>

Theory is used to describe a fact that has always been observed true but could at some future time not be observed as true.

Option: (B)

<u>Explanation:</u>

  • Hypothesis is a guess that is based upon the observation. Hypothesis is an idea that might occur in future but doesn’t fall in present theory.
  • Generally hypothesis is not based upon facts and also they aren’t proved. Interpreting certain fact is theory.
  • Theories are only the explanation of something but facts is observable.
  • Theory is something like a concept or idea that is observed to be true at present may fail in near future.
  • Law is absolute and true. Generally, they are represented by mathematical expression or equation.
  • For example, Newton's law, Law of gravity, Law of thermodynamics.
4 0
3 years ago
It's a gizmo for rainfall and bird beaks​
Flauer [41]

Answer:

9.9mm

Explanation:

7 0
3 years ago
The __________ of a cell determines how the labels and values look.
qaws [65]
I think format? or formula?
4 0
3 years ago
Other questions:
  • ____ has the highest affinity for electrons while _____ has the lowest affinity for electrons.
    13·1 answer
  • What is the connection between a circadian rhythm and the biological clock​
    5·1 answer
  • Which statement best describes the relationship of photosynthesis and energy? The process of photosynthesis is energy-storing be
    5·2 answers
  • Where does most seismic activity occur?
    9·2 answers
  • The biconcave shape of erythrocytes is a result of__________. peripheral proteins anchored to the inner surface of their plasma
    12·2 answers
  • During which step of the water cycle does water combine with pollutants on Earth's surface?
    5·1 answer
  • A population is a group of conspecific organisms.<br> True or false?
    10·1 answer
  • How is a whale more like a human than a fish? CHOOSE ALL THAT APPLY 1.warm blooded 2.breast feeds its young 3.spends much time o
    12·1 answer
  • Which of the following sentences from the article helps prove the claim that living with farm animals can help prevent asthma?
    15·2 answers
  • What level of organization is the brain?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!