How does the respiratory system and the digestive system work together?

Biology

1 answer:

Len [333]4 years ago

5 0

They work together to give the cells the ingredients they need to produce energy.

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Identify the type of mutation that occurred and explain in what way it affected the protein

chubhunter [2.5K]

Answer:

The type of mutation that occurs when in the DNA strand there is a change from guanine to cytosine is a nonsense mutation, since the triplet that should encode the amino acid encodes a stop codon and the protein cannot be completely synthesized.

Explanation:

The nonsense mutation consists of a change in one of the bases of the stranded DNA, which is transcribed into an altered mRNA, producing a stop codon, instead of an amino acid.

In the table it is observed that the CCA codon is a stop codon that cuts off the protein synthesis prematurely, leaving it incomplete and probably non-functional.

Sometimes this type of mutation can alter the sequence of amino acids but the protein may be complete enough to partially fulfill its function.

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3 years ago

What type of molecules are shown moving across the membrane?

jeka94

I believe that would be small polar and nonpolar molecules.
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3 years ago

Ultraviolet rays from the sun are dangerous because they can damage skin. Why do ultraviolet rays cause damage?

Sonja [21]

Answer:

UV rays are highly injurious to living organisms since DNA and proteins of living organisms preferentially absorb U.V rays and it's high energy breaks chemical bonds. UV rays damage DNA and mutation may occur. It causes ageing of the skin, damage to skin cells and various types of skin cancers.

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2 years ago

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Angelina_Jolie [31]

X is the dominant gene, and x is the recessive gene.

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3 years ago

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If 10 glucose molecules enter the Krebs Cycle, how many possible molecules of ATP can be produced?

vovikov84 [41]

Answer:

20 molecules of ATP

Explanation:

Krebs cycle or also known as Tricarboxylic acid cycle (TCA) is the second stage of aerobic cellular respiration which occurs in the mitochondria. In the kreb cycle, pyruvate, which was synthesized in the first stage of cellular respiration (glycolysis) is broken down into carbon dioxide (CO2).

However, in the krebs cycle, two (2) ATP molecules is produced per glucose molecule that enters cellular respiration. Hence, according to this question, If 10 glucose molecules enter the Krebs cycle, (2 × 10) = 20ATP molecules will be possibly produced.

8 0

3 years ago