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alex41 [277]
3 years ago
6

Active transport must function continuously because __________.

Biology
1 answer:
kotegsom [21]3 years ago
7 0

Answer: Option D.

Explanation:

Active transport is defined as the movement of solutes or molecules across a membrane on the basis of difference in solute concentration.

Active transport functions continuously due to diffusion that allows solutes to move constantly across the membrane. Cells have low concentrations of sodium (Na+) and high concentrations of potassium (K+). Hence, the electrical gradient and concentration gradient of sodium (Na+) that allows diffusion of the ion into the cell, and the electrical gradient of Na+ (a positive ion) that allows movement of ion inward to the negatively charged interior.

Hence, the correct option is D.

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Studied the role of RNA in protein synthesis, specifically in the bacteria E. coli.
Diano4ka-milaya [45]

The question is incomplete. The correct question is as following:

__________ studied the role of RNA in protein synthesis, specifically in the bacteria E. coli.

Answer:

Marshall Nirenberg and Heinrich Matthaei

Explanation:

Marshall Nirenberg and Heinrich Matthaei are two biochemist and geneticist who studied the functional importance of RNA in the process of translation (protein synthesis) experimentally in E.Coli.

Nirenberg and Matthaei discovered the first codon out of 64 codons present in RNA and they successfully performed translation (protein synthesis) in E.coli in a test tube. They decoded the first codon UUU (phenylalanine) by using synthetic RNA having only uracil nucleotides in a E.Coli and later they decoded further codons.

So, the correct answer is  Marshall Nirenberg and Heinrich Matthaei.

5 0
3 years ago
Write the chemical formula for each of the following compounds. Start the formula with the first element listed in each statemen
Anika [276]

Answer:

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Explanation:

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7 0
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malfutka [58]

Answer:

Inside the air sacs, oxygen moves across paper-thin walls to tiny blood vessels called capillaries and into your blood. A protein called haemoglobin in the red blood cells then carries the oxygen around your body.

Explanation:

Hope this helps

3 0
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