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Sonja [21]
3 years ago
10

Is pyruvate oxidized or reduced during glycolysis?

Biology
1 answer:
Tpy6a [65]3 years ago
7 0

Answer:

It is oxidized into Acetyl CoA. This process is called Oxidation of Pyruvate.

Explanation:

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One form of chromatin modification is acetylation, which is known to occur on positively charged histone tail amino acids, thus
Naya [18.7K]

Answer:

A. The tails do not interact with the DNA

Explanation:

The acetylation refers to the transfer of the acetyl group from Acetyl-CoA to the N-terminal of the histone protein.

Lysine residues (positively charged amino acid) are present at the end of the N-terminal of the histone protein which is neutralized by the acetyl group.

This loses the compaction between the positively charged histone and the negatively charged DNA and the DNA becomes more relaxed. This relaxed state allows the transcription factors to easily bind the DNA and therefore the DNA becomes transcriptionally active.

Thus, Option-A is correct

4 0
3 years ago
The graph shows the changing levels of hormones during menstruation and ovulation. What is the general trend for hormones after
Vladimir79 [104]

Answer:

Hormone levels generally decrease.

Explanation:

<em>The graph showed that hormone levels after ovulation generally decrease.</em>

The menstrual cycle of women generally have 3 phases which include:

  1. <em>The follicular phase</em>
  2. <em>The ovulatory phase</em>
  3. <em>The luteal phase</em>

The follicular phase is characterized by low levels of oestrogen and progesterone and a slightly high level of follicle stimulating hormone which ensures that follicles within the ovary develop.

The ovulatory phase is characterized by a surge in the luitenizing hormone (which stimulates the release of eggs) and follicle stimulating hormone with a decrease in the level of oestrogen and a gradual increase in the level of progesterone.

The luteal phase is characterized by a general decrease in the levels of luitenizing hormone and follicle stimulating hormone while oestrogen level may remain high.

5 0
3 years ago
Read 2 more answers
Energy used in photosynthesis is obtained from water.<br><br><br> True<br><br> False
Ghella [55]

Explanation:

False.. Light energy (Sunlight) is correct

4 0
2 years ago
A portion of a field has drained more rapidly than the rest, leading to drought conditions in that area several days before the
Andrew [12]

Answer:

Due to sloppy nature of the field.

Explanation:

This problem of rapidly drainage can be solved if the field should leveled because the portion is rapidly drained due to sloppy nature of the field. Sloppy nature of land moves water at the faster rate from higher elevation to lower elevation. We can see in tillage practices, the farmers used levelers in order to level the field in order to provide even resources such as fertilizers and water. So we can say that this problem can be solved if the field will be leveled.

3 0
2 years ago
What are some limiting factors that the orca population experienced while in<br> captivity?
anastassius [24]

Some limiting factors that the Orca population experienced while in captivity include food and dissolved oxygen.

<h3>What is Limiting factor?</h3>

This refers to any variable or factor in the environment which limits the population expansion of a given species.

In the case of Orca they are present in the sea and need food and dissolved oxygen to survive which is why it acts as a limiting factor due to their absence causing a decline in population.


Read more about Limiting factor here brainly.com/question/1375274

#SPJ1

5 0
1 year ago
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