When substrate-level phosphorylation occurs, it means that:

A. NAD+ is converted into NADH.
B. ADP is converted into ATP by the addition of a phosphate group.
C. ATP is converted into ADP plus a phosphate group.
D. NADH is converted into NAD+ plus a proton.


Answer: B

Biology & Microbiology

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Answer the following statements true (T) or false (F)

1) Crossing-over occurs in meiosis I and meiosis II. 2) Chromosome duplication occurs between meiosis I and meiosis II. 3) In animal cells, cell division is accomplished by the formation of a cleavage furrow. 4) Daughter cells produced in meiosis are identical. 5) Chromosome duplication occurs prior to both mitosis and meiosis.

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Indicate whether the statement is true or false

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A asset tube contains red blood cells and a salt solution. When the tube is held up to a page, you cannot see the print. with reference to a concentration of 0.9% sodium chloride (NaCL), how concentrated is the salt solution?

What will be an ideal response?

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