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
Nadusha1986 [10]
3 years ago
14

The electrons of photosystem ii are excited and transferred to electron carriers. From which molecule or structure do the photos

ystem ii replacement electrons come?
Physics
1 answer:
AysviL [449]3 years ago
7 0

Answer:

water

Explanation:

The light energy trapped in the chlorophyll a reactive molecule of Photosystem II releases electrons at a higher energy level. These electrons are replaced in the chlorophyll a molecule by electrons that come indirectly from water molecules that are cleaved and also release protons (H +) and oxygen gas. The electrons pass from the primary electron acceptor, along an electron transport chain, at a lower energy level, the reaction center of Photosystem I. As they pass along this electron transport chain , a proton gradient is formed from which ATP is synthesized. The light energy absorbed by Photosystem I releases electrons to another primary acceptor. From this acceptor, electrons are transferred by other transporters to NADP + and NADPH is formed. The electrons removed from Photosystem I are replaced by those from Photosystem II. ATP and NADPH represent the net gain of the reactions that capture energy.

You might be interested in
Can you get cornered in a round room?
Gwar [14]
No becuase a round room has no corners so no
3 0
3 years ago
Read 2 more answers
If the acceleration of an object is zero at some instant in time, what can be said about its velocity at that time? 1. It is neg
Mkey [24]

3. It is not changing at that time

Explanation:

If the acceleration of a body is zero at some instant in time, it implies that the velocity is not changing at that point in time. Velocity is the rate of change of displacement with time.

✓Acceleration and velocity shares a very close relationship.

✓ For a body to accelerate, the velocity must change. Acceleration is defined as the rate of change of velocity with time.

✓If at any point, a body moves with constant velocity i.e the velocity does not change with time, the acceleration becomes zero.

✓ For acceleration to occur, a body must change velocity.

Learn more:

Acceleration brainly.com/question/6323625

#learnwithBrainly

5 0
3 years ago
A car is accelerating to the right. In which direction is the applied force?
Natasha_Volkova [10]

Answer:

Left

Explanation:

The force is applied opposite of the acceleration.

8 0
2 years ago
Why doesn't every planet have a moon?​
GalinKa [24]

Answer:

Up first are Mercury and Venus. Neither of them has a moon. Because Mercury is so close to the Sun and its gravity, it wouldn't be able to hold on to its own moon. Any moon would most likely crash into Mercury or maybe go into orbit around the Sun and eventually get pulled into it.

5 0
2 years ago
The images show two different types of Galapagos tortoises that scientists believe descended from the same species. The first ty
vichka [17]

Answer:

C. turtles with genes for long necks had a better chance of surviving to reach reproductive age.

Explanation:

The turtles that had long necks were more fit to the environmnet in which they were lovated and were able to grow larger and have more reproductive time because of their ability to feed on grass and small shrubs, this helped them always haev food available, and made them the dominant gene eventually.

3 0
3 years ago
Read 2 more answers
Other questions:
  • A 15kg beam that is 10m long is placed on a fulcrum that is 3m from the end an 80kg person sits at the end closer to the fulcrum
    7·1 answer
  • A scooter traveling at 4 m/s rides 800 meters. For what duration of time has the scooter been traveling?
    10·2 answers
  • Two trains start from towns 224 mi apart and travel towards each other on parallel tracks. They pass each other 1.6 hr later. If
    9·1 answer
  • 1. If point Q is reflected across x = 1, what are the coordinates of its reflection image?
    12·2 answers
  • The distance from the peak to a peak of a successive wave.
    6·1 answer
  • If an element forms a 2+ ion, in which group of the periodic table would you expect to find it? A. 2 B. 1 O c. 17 D. 18​
    7·1 answer
  • What would be the force required to accelerate an object that weighs 35 N up at a rate of .60 m/s^2?
    7·1 answer
  • A flea stands on the end of a 1.0 cm long
    7·1 answer
  • The human ear can respond to an extremely large range of intensities - the quietest sound the ear can hear is smaller than 10-20
    8·1 answer
  • NEED HELP FROM SCIENCE GENIUS !! POINTS WILL BE GIVEN AND DO GIVE ME A DECENT ANSWER !!!
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!