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Romashka-Z-Leto [24]
3 years ago
6

The first organisms that perform photosynthesis involves about two.2 billion years ago. During the next few million years their

actions cause which of these events?

Biology
1 answer:
balandron [24]3 years ago
6 0

Answer:

<em>The correct option is A) an increase in oxygen levels, which led to the extinction of many anaerobic organisms.</em>

Explanation:

Photosynthesis can be described as a process in which food (glucose) is produced by photosynthetic organisms by using carbon dioxide, water along with light energy from the sun. Oxygen is released as a by-product of this reaction. The process of photosynthesis initially allowed for oxygen gas to get accumulated in the air. This caused the rise of aerobic organisms who required oxygen for respiration. Before the photosynthesis organisms evolved, there was not enough oxygen gas on earth to support the life of aerobic organisms.

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AnnyKZ [126]

If the researchers replaced the bacterial proton pump with a proton pump that was activated only by atp then less ATP would be produced when the light is on because no proton gradient would be available to produce ATP.

<h3>What is proton gradient ?</h3>

Two quinol (4H+4e) oxidations at the Qo site result in the formation of one quinol (2H+2e) at the Qi site, creating a proton gradient (in total six protons are translocated: two protons reduce quinone to quinol and four protons are released from two ubiquinol molecules).

For the ETC to continue functioning, the energy trapped in the electrochemical gradient of protons across the inner mitochondrial membrane must also be released in some manner. ATP is created using the energy in the proton electrochemical gradient.

Chemiosmotic coupling is the process by which ATP synthesis is coupled to the electrochemical gradient of H+ across the inner mitochondrial membrane.

Peter Mitchell, who in 1961 made the initial suggestion, was given the Nobel Prize for his efforts in 1978.

To learn more about proton gradient from the given link:

brainly.com/question/28046848

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1 year ago
Why are archaea in a different domain from bacteria?
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They are thought to have separate paths of evolutionary development.

They developed along different evolutionary paths.  

They had independent evolutionary development.

4 0
3 years ago
Why can't two person's from the same family have children together?​
malfutka [58]

Answer:

They can have children together. If they are married or in a relationship they can do anything they want together including the want of children.

Explanation:

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What type of fat is used for cooking in the region of france that is near the mediterranean sea?
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If there are 40 centromeres in a cell at anaphase of mitosis, how many chromosomes will be found in each daughter cell following
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Answer:

Twenty (20)

Explanation:

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