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earnstyle [38]
3 years ago
12

1

Biology
1 answer:
levacccp [35]3 years ago
8 0
1) true; 2) false; 3) true
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Which of the following sequences is correct for the downhill movement of electrons during cellular respiration? A. glucose – cit
Volgvan

Answer:

B. glucose – NADH – electron transport – O2

Explanation:

This is the sequence  from glycolysis in which  glucose molecules are split down to pyruvate, to oxidative phosphorylation.

During this process the electrons are released from glucose  molecule as it is oxidised multiple times as pyruvate, and other molecules formed subsequently in Kreb's cycle, until the oxidative phosphorylation is reached .

The makes the  carrier molecules to be reduced.Thus NAD→NADH,FAD→FADH .

The electrons from above are  transferred in hydrogen atoms  to matrix by these co-enzymes.Where the H is split to electrons  and protons.

The electrons for the ETC, produce the PMF for transporting  protons into the intramembrane space.

The concentration of protons generated the electrochemical gradients  which is needed to produce energy for for phosphorylation of ADP with Pi to form ATP by ATpase synthase.

The electrons moves as chain,and this is finally accepted by oxygen as the final electron acceptor.

3 0
3 years ago
Which of these is not an internal factor in causing cancer?
zubka84 [21]
The answer to this is inherited mutation.

Inherited mutation is a permanent alteration in the DNA sequence that makes up a gene, such that the sequence differs from what is found in most people.

Hope this helped :)
Have a great day
3 0
3 years ago
Which of the following is not a plant adaptation to cold?
marshall27 [118]
B, Rhizoids.

That's the only one that won't help you in a tough spot!
7 0
3 years ago
What causes a branch in a cladogram?
Alona [7]

Answer:

The correct option is D. A new trait

Explanation:

A cladogram can be described as a diagram which depicts the evolutionary similarities and differences among different species.

Whenever a new trait is seen in an organism, a branch is made in the cladogram to depict that change from others. The organisms that are similar or share evolutionary history are termed as clades. Branches in between them depict the changes in these similar clades.

6 0
3 years ago
Which process does the diagram represent
Tanya [424]
Where’s the diagram?
7 0
3 years ago
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