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
blondinia [14]
4 years ago
15

When light energy excites electrons in photosystem where do the electrons to replace them come from

Biology
1 answer:
mel-nik [20]4 years ago
8 0
Light excites the electrons in chlorophyll a molecules of photosystem 1. As these electrons move to another primary electron receptor, electrons from photosystem 2 replace them.
Therefore the answer is FROM PHOTOSYSTEM 2.
You might be interested in
If rain from a thunderstorm falls into a mountainous area, in what order will the rainwater flow through the surrounding geograp
dybincka [34]
The answer is D. The river basin goes out into the ater shed leading straight for the ocean!
8 0
4 years ago
Read 2 more answers
Why doesn't Venus have a moon​
Deffense [45]

Answer:

Nobody shall ever know -.-

Explanation:

8 0
3 years ago
Read 2 more answers
What are the three sections of the large intestine and what roles does each play in digestion or absorption?
garik1379 [7]
I guess the three parts of the large intestine is it absorbs remaining water, bacteria eats rest of what ever could be digested then puches to anus
6 0
3 years ago
Which of the following is an example of an estuary?
Salsk061 [2.6K]
The answer is C. salt mrash
3 0
4 years ago
It can be said that metabolism and homeostasis are related. Why can you not achieve homeostasis without metabolism?
Burka [1]
The answer is B.  hope this helps I have an 86.6 in biology.
4 0
3 years ago
Other questions:
  • What specific question is this graph addressing?
    12·1 answer
  • The observed results of an experiment that occur from changes in the independent variable are known as?
    8·2 answers
  • Which of the following is not a component of soil?
    11·1 answer
  • Which parameter of the hydrosphere always remains constant
    7·2 answers
  • Why do problems with the heart lead to difficulty breathing?
    15·2 answers
  • Can some one plz help me I’m confused on what to do
    6·1 answer
  • ____ metamorphism is a prosess by which buried rocks in a large area are changed by heat, pressure, fluids HELP PLEASE FAST
    10·1 answer
  • Emily (who is 5.5 feet tall) wants to measure the height of a tree in the
    10·1 answer
  • Which two processes indicate that water is gaining thermal energy
    11·2 answers
  • plants are all around us. describe a plant that you see often and then explain what makes it a plant?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!