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kobusy [5.1K]
10 months ago
15

Active tissues that are metabolizing quickly only have a PO2 of 20 mm Hg. How much hemoglobin is saturated at this point? Why is

it beneficial for the hemoglobin near these tissues to NOT pick up oxygen?
Biology
1 answer:
Mariulka [41]10 months ago
4 0

The percentage of hemoglobin that will be saturated when the PO2 is 20 mmHg is 20%.

<h3>Why is it beneficial for the hemoglobin near these tissues to NOT pick up oxygen?</h3>

It is recommended that the tissues do not absorb oxygen at this point because the affinity of hemoglobin for oxygen will be low since the medium will be acid due to the amount of hydrogen ions and carbon dioxide, situation that occurs in tissues where oxygen is metabolized quickly. Therefore, then there will be no absorption of oxygen from these tissues, but rather it will occur in oxygenated tissues such as the lungs. This is an effect called the 'Bohr effect' and allows oxygen to be released where it is most needed.

And the percentage of oxygen saturation will be 20% according to the hemoglobin saturation curve.

To learn more about hemoglobin visit: brainly.com/question/15011428

#SPJ1

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Smaller dna fragments migrate _____ and further over a given period of time than larger fragments.
nordsb [41]

Smaller DNA fragments migrate <u>more quickly</u> and further over a given period of time than larger fragments.

<h3>Gel electrophoresis and DNA fragments</h3>

Gel electrophoresis is a method to separate DNA fragments (or RNA and other macromolecules) based on their size and charge, involving a gel called agarose. The molecules will travel through the gel at different speeds or in different directions, which allows them to be separated from each other.

Because all DNA molecules have the same amount of charge per mass, gel electrophoresis of DNA fragments separates DNA molecules based on size only. Shorter pieces of DNA travel through the pores of the gel more quickly than longer ones do.

Learn more about DNA fragments here: brainly.com/question/17568989

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4 0
1 year ago
The punnet square below represents the result of the cross between two tall pea plants.
erma4kov [3.2K]

Genotype is 1:2:1 (1 Homozygous tall, 2 heterozygous tall, 1 homozygous short)

Phenotype ratio is 3:1

The heterozygous Tt and recessive tt could produce short pea plants if they were crossed.

Explanation:

Genotype is the alleles present for a particular gene. In the Punnett square we can see there will be three tall pea plants and one short pea plant but they can be either homozygous or heterozygous.

While phenotype is the exhibited trait by particular allele that is 3 tall pea plants and one small pea plant.

If Tt and tt are crossed 50 per cent chances of short pea plant is there.

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Explanation:

(not necessary)

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2 years ago
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