The isomerization of citrate to isocitrate: a) is the only unnecessary step of the citric acid cycleb) protects cells from the toxic effects of arsenite ionc) converts a tertiary alcohol, which cannot easily by oxidized, to a secondary alcohol that can be oxidizedd) is a major regulatory step for the citric acid cyclee) is an oxidation reaction

The correct answer is c converts a tertiary alcohol which cannot easily be oxidized to a secondary alcohol that can be oxidized.

Explanation:

Both citrate and isocitrate are isomers of each other and also very important metabolic intermediates of TCA cycle.

  Citrate is a tertiary alcohol that"s why it cannot be metabolized as it"s functional group is surrounded by many bulky groups.

 To overcome this problem citrate is converted to isocitrate which is a secondary alcohol that can easily be metabolized to generate alpha ketoglurate an important intermediate of TCA cycle.

1: the largest region of the brain is the:

  cerebrum

2. the term "psychology" literally means:

the process or procedure of the science or study of the mind.

3. the area of the brain responsible for respiration, heart rate, and smooth muscle control of our blood vessels is t

medulla oblongata

4. the structure that conducts nerve impulses to and from the brain and serves as a reflex center for some sensory information without input from the brain is the:

spinal cord

5. the three-layered membrane that covers the brain and spinal cord and literally means membrane is called the:

meninges

6. the cord-like (string-like) structures that carry bio-electrical impulses from one part of the body to another are called

nerves

7. a group of nerve cell bodies that are found outside of the spinal cord and brain are referred to as:

ganglions or ganglia (pl.) “literal meaning knot”

8. the term that means spinal cord inflammation is:

myel/itis