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stiv31 [10]
4 years ago
8

Which of the following is most similar to the functioning of an electron transport chain?

Biology
2 answers:
Rashid [163]4 years ago
3 0
I believe the answer is “D) a person jumping rope”
earnstyle [38]4 years ago
3 0

Answer:

A. A person descending a flight of stairs one step at a time.

Explanation:

Electron transport chain consists of electron carrier proteins through which movement of electrons from electron donor to the electron acceptor occurs. The energy released by downhill electron transport is conserved in form of electrochemical potential by uphill transport of protons across the impermeable membrane. The downhill flow of protons serve as energy source for ATP synthesis. Hence, the electron transport chain harness the energy of reduced NADH and FADH2 in step by step manner.

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endothermic reaction

Explanation:

This means it cannot occur without energy (from the Sun).

6 0
1 year ago
Most animals with backbones, vertebrates, have a similar body plan: skull, ribs, two pairs of limbs, tail. What does this sugges
daser333 [38]

The correct answer is E. Vertebrates are all related to a common ancestor

Explanation:

According to biology and evolution, organisms from different species but that share similarities in morphology (body structures) as well as in genetics often have a phylogenetic relationship which means they descend from the same organism or share a common ancestor. This applies to multiple taxonomical levels including classes such as mammals or birds as it has been proved each of this derived from a common ancestor. Therefore, the similarity in the body structure (morphology) in all mammals suggest vertebrates are related to a common ancestor and as they evolved from this, they share similarities not only in terms of morphology but also in genetics.

3 0
4 years ago
Read 2 more answers
The cell membrane allows cells to interact with their environment and is responsible for-​
Artemon [7]

Answer:

Keeping the organelles inside of the cell and giving the cell structure.

Explanation:

7 0
3 years ago
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(1) Identify the two vocabulary words that belong and fully explain why.
Bumek [7]

Answer:

solar system belongs to universe

Explanation:

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4 0
3 years ago
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aivan3 [116]
Your answer should be C if not then it should be A
SO SORRY if im wrong but please tell me if i am
6 0
4 years ago
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