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Biology
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(Briefly) describe the four phases of aerobic respiration?

Glycolysis: Takes place in the cytoplasm and involves the oxidation of a 6-carbon glucose molecule to two 3-carbon pyruvate molecules with a net gain of ATP and reduced NAD (2 molecule...

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Answered by Sarah B. Biology tutor
9082 Views

Can you name and describe the four levels of protein structure?

Primary structure - This is the sequence of the amino acids on the polypeptide chain. The amino acids are held together with covalent bonds. When mutations occur, they effect the prima...

FL
Answered by Francine L. Biology tutor
5231 Views

What is the difference between Mitosis and Meiosis?

Both meiosis and mitosis are types of nuclear division. The main difference between the two is the ​number ​of nuclear divisions that take place:

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Answered by Sarah B. Biology tutor
5928 Views

What is the function of mitochondria?

Mitochondria are the 'powerhouses' of the eukaryotic cell. These organelles are the sites of cellular respiration, the metabolic process that generates energy from carbohydrates in the cell. The energy...

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Answered by Sarah B. Biology tutor
7794 Views

What is evolution and why does it happen?

Evolution is a constant process that allows life forms to adapt to a changing environment.

How does the environment change, though? 

Well, there are several sources...

MB
Answered by Mathilda B. Biology tutor
3687 Views

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