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stira [4]
2 years ago
7

Which compound plays a pivotal role in both the first and last step of the TCA cycle? a. pyruvate b. oxaloacetate c. oxalate d.

glycerol e. acetyl CoA
Biology
1 answer:
vitfil [10]2 years ago
8 0

Answer:

Option b oxaloacetate is the right one.

Explanation:

There are major eight steps in TCA cycle. Oxaloacetate plays a pivotal role in <u>first and eight step</u>s of cycle.

Step 1. In the first step of the citric acid cycle, acetyl CoA joins with a four-carbon molecule, oxaloacetate, releasing the CoA group and forming a six-carbon molecule called citrate.

Step 8. In the last step of the citric acid cycle, oxaloacetate—the starting four-carbon compound-is regenerated by oxidation of malate. Another molecule of NAD+ is reduced to NADH in the process.

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ololo11 [35]

Answer:

I would predict that the the following generation will have a large amount of pups that are eaten by the sharks.

This question seems like its asking about natural selection.

"Natural selection is the process when organisms better adapted to their environment tend to survive and produce more offspring"

Explanation:

If the marine biologist did not give the pups medicine in the first generation, the pups that were less fit or not adaptive to the enviroment to naturally survive the infections would have died. This would have prevented these pups from passing on their genes.

The next generation would consists of pups that are more immune to the sickness or more fit for their enviroment and might experiece less pups to die.

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3 years ago
A father possesses an X-linked disorder. What is the chance that his son will inherit this genetic abnormality from the father?
Svet_ta [14]

X-linked disorder is a recessive autosomal disorder, which means that

There is a 1 in 4 chance (25%) of having a child who is unaffected.

There is a 1 in 4 chance (25%) of having a child who is affected by the condition. These children have two copies of the gene that do not work correctly.

There is a 1 in 2 chance (50%) of having a child who is a carrier of the condition.  These children have one working copy of the gene and one copy of the gene that does not work correctly.

7 0
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IrinaK [193]

Answer:

behavioral isolation

Explanation:

8 0
3 years ago
Which portion of the ventricular system is found within the diencephalon?
wolverine [178]
<span>The ventricular system consists of four ventricles that are interconnected in the brain.
The third ventricle</span> is the portion of the ventricular system is found within the diencephalon. It is a median cleft in the diencephalon between the two thalami, and is filled with cerebrospinal fluid (CSF).
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2 years ago
The majority of the plasma membrane can be described as a bilayer of with associated proteins.
tester [92]

According to the research, the correct option is phospholipids. The majority of the plasma membrane can be described as a bilayer of <u>phospholipids</u> with associated proteins.

<h3>What is the plasma membrane?</h3>

It is a double layer of phospholipids and proteins, which perform functions of connection, transport and catalysis, which covers and delimits the cells, serving as a border between the inside and the outside of it.

In this sense, one of the peculiarities of phospholipids is that they are amphipathic, their molecules have a part that is soluble in water (that is, hydrophilic) and another that is not (hydrophobic), these lipids are primarily cholesterol, phosphoglycerides and sphingolipids

Therefore, we can conclude that according to the research, the correct option is phospholipids. The majority of the plasma membrane can be described as a bilayer of <u>phospholipids</u> with associated proteins.

Learn more about plasma membrane here: brainly.com/question/14828752

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