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Lunna [17]
2 years ago
11

What is the main function of Krebs cycle?

Biology
1 answer:
Alina [70]2 years ago
6 0

Answer:

the main function of Krebs cycle is that it plays a big role in the process of energy production and biosynthesis.

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lina2011 [118]
The Answer is, System :)
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3 years ago
Gene mutations can be positive, negative, or neutral. Suppose that the normal gene in Model 2 produced a polypeptide that was ne
Zolol [24]

Gene mutations can be positive, negative, or neutral. Suppose that the normal gene in Model 2 produced a polypeptide that was necessary for cellular respiration.

A) Choose a mutation from those in Model 2 that might be positive for a cell. Explain your reasoning by relating the mutation to the cellular respiration process.

Genes encoded in our DNA result in the production of proteins that perform specific functions  within human's cells and various environmental factors and spontaneous events can lead to changes in genes, these changes are called mutations, can lead to alterations in the structure and activity of the proteins in the cells use. Mutations are the source of all new alleles in nature and arise spontaneously at low frequency owing to the chemical instability of purine and pyrimidine bases and to errors during DNA replication. Therefore,a gene mutation is a change in the sequence of nucleotides that occurs during cell replication  (mitosis and meiosis) within a single coding section of DNA. Variations in alleles lead to variations in organisms  within a population, cellular respiration, i.e. the reduction of inspired oxygen to water, which powers cell function, also generates highly reactive oxygen species that can damage DNA, with the purine bases G and A being particularly susceptible to this kind of attack,so Positive mutations lead to the organism having a better chance of survival, which  means the mutation may be passed on to the offspring.

B) Choose a mutation from those in Model 2 that might be negative for a cell. Explain your reasoning by relating the mutation to the cellular respiration process.

Due to one's metabolism, the human body replaces every cell within the cellular respiration process and any mistakes can also occur in the  transcription of mRNA or the translation of a polypeptide. However, these changes are considered to be negative mutations, because they are not permanent changes to the cell, however such mutations may lead to an early death probably before the organism can produce offspring.

3 0
2 years ago
Somebody help me so I can give y’all some points
Fynjy0 [20]

Answer:

d is the correct answer

Explanation:

an ionic bond forms when positively charged metal ion attract to negatively charged ones

hope this helps !

5 0
2 years ago
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The answer is negative controls. These are groups where no phenomenon is probable. They ensure that there is no effect when there should be no effect. Where there are only two possible outcomes, e.g. positive or negative, if the treatment group and the negative control both produce a negative result, it can be concluded that the treatment had no effect. If the negative control group and the treatment group both yield a positive result, it can be inferred that a puzzling variable is involved in the occurrence under study, and the positive results are not only due to the treatment. In other examples, outcomes might be measured as lengths, times, percentages, and so forth.
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3 years ago
1pt A student investigates the rates of several chemical reactions. Which is an inference of the investigation?
Tanzania [10]

Answer:

I think the answer would be C.

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