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
Lyrx [107]
3 years ago
7

Photosynthesis is divided into two sets of reactions (light-dependent and light-independent). Photosystem I and photosystem II a

re both light-dependent reactions while the Calvin cycle is light-independent. How are the light-dependent and light-independent reactions similar?
A) Both reactions rely on chemical energy.
B) They take place in the stroma of the chloroplast.
C) Both need light energy at all times in order to occur.
D) They occur in the thylakoid membranes of the chloroplast.
Biology
2 answers:
LuckyWell [14K]3 years ago
8 0

Answer:

D

They occur in the thylakoid membranes of the chloroplast.

guapka [62]3 years ago
5 0

Answer:

A) Both reactions rely on chemical energy.

Explanation:

The light-dependent phase of photosynthesis occurs in the chloroplasts' tilacoid membrane, the capture of light energy and the transformation into chemical energy. In this process, the green pigment molecules go into an excited state, emitting part of the absorbed energy. These pigments are organized into two photosystems (I and II), which can be defined as light capture units present in thylacoids.

In this phase, light energy is absorbed by pigments in photosystem II and transferred to chlorophyll molecules in the reaction center. The energized electrons are transferred to an electron receiver. According to the transfer of these electrons, they are replaced by others from water photolysis. Here, too, oxygen is produced.

Some pairs of electrons pass to photosystem I stimulating ATP synthesis. The energy absorbed at that moment stimulates the chlorophyll molecules of the reaction center of this photosystem, and the energized electrons are accepted by a NADP + molecule. The electrons removed from chlorophyll are replaced by others from photosystem II.

The independent light phase occurs in the chloroplast stroma and also depends on the chemical energy. It starts with the process of fixing carbon in an organic compound. In this stage, the molecules of NADPH and ATP produced in the light phase are used for the production of sugars from the reduction of the fixed carbon. The reactions that occur here are called Calvin Cycle and, in the process, most of the fixed carbon is converted into sucrose or starch.

You might be interested in
Can someone check these please? ❤️
serg [7]

i hink u are correct


4 0
3 years ago
Read 2 more answers
The picture shows a jar of honey<br><br> Which statement is correct about this food?
scoundrel [369]

Answer:

what picture?

Explanation:

?????????????????????????????????

3 0
2 years ago
What is the rounded proximal end of a long bone
zvonat [6]

Answer:

epiphyses (Just typing more so brainly lets me post this)

4 0
2 years ago
Read 2 more answers
What are 4 types of chemical weathering?
Sliva [168]
Dissolution
Oxidation
Carbonation
Hydrolysis
3 0
3 years ago
You are working as a botanist in a tropical forest and have located a small plant that has never before been seen or classified.
vichka [17]

Answer: Pteridophyte

You classify the plant as a pteridophyte

Explanation:

Pteridophytes are known to have the following:

- many cells (multicellular) and vascular bundles

- true roots, stems, and leaves

- do not produce flower throughout their lifespan

- they are mainly terrestrial plants, while few are aquatic

- do not produce seeds but reproduce asexually by formation of spores

Examples are ferns

8 0
3 years ago
Other questions:
  • A student completing an experiment finds that her data do
    10·1 answer
  • Peter was surprised to learn that, in addition to blood, there's another type of circulating body fluid that flows within separa
    15·1 answer
  • Please help on these questions
    15·2 answers
  • PLZ HELP!!! 50 POINTS!!
    7·2 answers
  • Which of the following levels of organization is the smallest?
    14·2 answers
  • If coliforms are found in a water sample, the imvic tests will help determine whether the coliforms are of fecal origin and not
    15·2 answers
  • Que es la evolución ?
    10·1 answer
  • What are the functions of lipids?
    8·1 answer
  • Which statement best describes a sustainable mining or drilling technique?
    15·1 answer
  • Where does photolysis of water occur in photosynthesis
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!