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babymother [125]
4 years ago
8

The pumping of hydrogen ions (protons) across membranes during chemiosmosis is an example of which type of cellular transport?

Biology
1 answer:
lisov135 [29]4 years ago
4 0
I believe the correct answer from the choices listed above is the second option. Chemiosmosis is the process of using a hydrogen concentration and electrochemical gradient to move hydrogen ions through a specialized protein channel, thus driving a chemical process. Therefore, it is a facilitated diffusion which <span>uses regular diffusion as the driving force (i.e. the molecule moves from high to low concentration), but unlike regular diffusion does so only through specialized channels.</span>
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In fruit flies, an autosomal mutation in the gene for wing veining results in cross veinless wings. This mutation is recessive.
mezya [45]

Answer:

B. cv+cv w+w

Explanation:

Fruit flies have a special nomenclature to write the genotype of individuals.

  • If the mutation is recessive, you have to write it with lowercase letter(s).
  • If the mutation is dominant, you have to write it with capital letter(s).
  • Wild-type alleles are indicated with a superscript plus (+).

In this problem, both crossveinless (cv) and white (w) mutations are recessive.

<u>For that reason, a heterozygous individual's genotype for both genes will be written as:</u>

<h2>cv⁺ cv  w⁺ w</h2>
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abruzzese [7]

Answer:

One glycerol molecule and three fatty acid molecules attached to it

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nika2105 [10]
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3 years ago
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Semenov [28]
The right answer is: <span>A

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</span>The three elements are able to exist in a gaseous form in the atmosphere to complete their respective natural cycle.</span>
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