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
Fantom [35]
3 years ago
8

Bacteriorhodopsin pumps protons across the bacterial plasma membrane from the cytosolic side to the extracellular side of the me

mbrane in a series of steps. Choose the step that correctly describe a step used to pump protons across the membrane.A. A proton is transferred from excited retinal to the Asp96 side chain. B. The chromaphore retinal absorbs a photon of light, causing a double bond in retinal to isomerize from trans to cis configuration. C. A proton from Asp96 on the cytosolic side of the protein is used to regenerate retinal.D. A proton from the cytosol side is transferred along multiple water molecules to Asp85.
Biology
1 answer:
julsineya [31]3 years ago
7 0

Answer: Option B.

B. The chromaphore retinal absorbs a photon of light, causing a double bond in retinal to isomerize from trans to cis configuration.

Explanation:

Bacteriorhodopsin is a protein used by archaea or half bacteria that pumps proton across membrane by using the light energy from sun to move protons across membrane. It is found in purple membrane of archaea cells which is known as two dimensional crystalline patches.

It captures photon energy through chromophore retina which is covalently bound and transporting the photons against their electrochemical gradients from the cytoplasm to the extracellular space.

You might be interested in
Which term means a sticking together of two structures that are normally separated?
Anika [276]
Anastomosis is the term meaning sticking together two structures that are normally separated
6 0
3 years ago
The partial pressure of oxygen in arterial blood is approximately:.
rusak2 [61]

Answer:

between 75 mmHg and 100 mmHg

Explanation:

7 0
2 years ago
True or false: homologous chromosomes separate during mitosis?
Tcecarenko [31]

Answer:

Homologous chromosomes do not function the same in mitosis as they do in meiosis. Prior to every single mitotic division a cell undergoes, the chromosomes in the parent cell replicate themselves. The homologous chromosomes within the cell will ordinarily not pair up and undergo genetic recombination with each other.

4 0
3 years ago
Electromagnetic energy released during fusion is converted to other kinds of photons as it is transferred through which layer of
Sonja [21]
<span>The electromagnetic energy released during fusion is converted to other kinds of photons as it is transferred through which layer of the Sun? It is in the radiative zone</span>
4 0
3 years ago
Venus is known for its
Mkey [24]
B. Thick Atmosphere 

Let me know how it goes!
8 0
3 years ago
Read 2 more answers
Other questions:
  • The sum of michael's tidal volume, inspiratory reserve volume, and expiratory reserve volume is called his ______. the sum of mi
    11·1 answer
  • An organism that can manufacture its own food from inorganic substances. Select one: a. denitrifying bacteria b. herbivore c. om
    15·2 answers
  • 1.
    7·1 answer
  • 73. The study of life
    5·1 answer
  • What does the D in DNA stand for?
    15·2 answers
  • The table below shows the common and scientific names of five vertebrates.
    12·1 answer
  • WHAT FOOD CHAIN IS APART OF THIS FOOD WEB
    11·1 answer
  • Why do we compare the dermal tissue of plants to human skin? Explain your answer.
    7·1 answer
  • !!!!! Which of the following statements best describes the climate of an area rather than its weather conditions?
    11·1 answer
  • What cell part is responsible for capturing solar energy for a plant?.
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!