Select the true statements about the electron transport chain.

Biology

2 answers:

almond37 [142]3 years ago

5 0

Answer: A. In the electron transport chain, a series of reactions move electrons through carriers.

B. The products of the electron transport chain are H2O and either NAD or FAD.

E. The electron transport chain is a series of oxidation-reduction reactions that occur in the inner mitochondrial membrane.

Explanation:

the best suitable statement is it transfers energy stepwise from one compound to another, The electron transport chain is a series of proteins and organic molecules found in the inner membrane of the mitochondria. Electrons are transferred from one member of the transport chain to another in a series of redox reactions.

wel3 years ago

5 0

Answer:

The correct statements are: a), b) and e)

Explanation:

The high energy electrons are released from NAD and FAD and move along the electron transport chains, these are in the inner membrane of the mitochondria. As the high energy electrons are transported along the chains, part of their energy is captured. This energy is used to pump hydrogen ions (from NAD and FAD) through the inner membrane, out of the matrix into the intermembrane space. The electron transport chain serves the sole purpose of transporting protons from one side of these membranes to the other. The protons, thus, are concentrated on one side of the membrane. ATP synthase acts as a channel protein, helping hydrogen ions cross the membrane. It also acts as an enzyme, forming ATP from ADP and inorganic phosphate. After passing through the electron transport chain, the "spent" electrons combine with oxygen to form water. This is why oxygen is needed; in the absence of oxygen, this process cannot occur.

You might be interested in

How are adenine and guanine alike and different

andre [41]

They both are constituents of DNA.
Adenine, cytosine, guanine and thymine are the glue that holds together the two sugar-phosphate strands which form the back-bone of DNA. The order in which these bases occur is what stores the information in DNA.

6 0

3 years ago

What term refers to organisms that look alike and produce fertile offspring?

OlgaM077 [116]

Answer:

Species

Explanation:

Such as humans, we are a species because we all look similar and can reproduce with one another.

8 0

3 years ago

Define the following ecological term biosphere

Katen [24]

Biosphere, relatively thin life-supporting stratum of Earth's surface, extending from a few kilometres into the atmosphere to the deep-sea vents of the ocean.

5 0

3 years ago

Giraffes are also vertebrates, like humans. In fact, despite their different neck sizes, humans and giraffes have exactly seven

Nana76 [90]

Answer:

giraffes necks consists a tall bone like structure called notochord which gives support to the skeletal system like how do we have backbone

3 0

3 years ago

1. A mutation of a human gene blocks harmful viruses from infecting cells. How can the mutation be classified?

Yuri [45]

Answer:

It is a beneficial mutation.

Explanation: Mutations are permanent changes in the nucleotide sequence of a DNA. Mutations can beneficial, neutral and harmful or deleterious. When change in the nucleotide sequence of DNA a mutation enhances the effectiveness of a protein or improves the protein function, it is said to be beneficial. When a mutation causes the synthesis of a protein which have the same amino acid as the original protein and performs the same function as the original protein, it is said to be silent or neutral. When a mutation results in the synthesis of a protein with an altered amino acid sequence and a nonfunctional protein, it is said to be harmful.

3 0

3 years ago