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Charra [1.4K]
4 years ago
7

What structures in the plasma membrane regulate ion passage?

Biology
2 answers:
Komok [63]4 years ago
4 0
Integral proteins are embedded in the phospholipid layer, and can sometimes form protein channels that let ions and other small molecules through.
stepladder [879]4 years ago
3 0

Answer:

The correct answer is integral membrane proteins.

Explanation:

The plasma membrane is the outer membrane of the cell which is selectively permeable. The small polar molecules and hydrophobic molecules can go through the lipid bilayer, but ions and large polar molecules cannot go through. There are some Integral membrane proteins present in the plasma membrane that enable ions to pass through the plasma membrane by active or passive transport.

Thus, the correct answer is integral membrane proteins. Ions generate electrochemical gradient so they are generally used in secondary transport systems.

Thus, the correct answer is integral membrane proteins.

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a

Explanation:

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Conlan wants to answer the question, “Does phosphorus affect tomato fruit production?” Which statement represents a hypothesis t
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<span>If phosphorus affects tomato fruit production, then plants that are fertilized with phosphorus will produce more tomatoes</span>
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Is selection more effective against recessive alleles in haploid or diploid organisms?
svet-max [94.6K]
The selection of more effective which is against recessive alleles in haploid organisms than diploid organisms. This is because haploid organisms contain a single set of alleles if a deleterious allele is present in haploid organisms which will produce its effect immediately as there will be no dominant allele which can prevent the expression of the recessive allele as it happens in diploids. Recessive allele will not produce its effect in presence of the dominant allele in the case of heterozygote which is Aa.
Where there is haploid the selection will be more effective when removing recessive alleles in the population. It is the homozygous recessive condition which as aa then the selection will act against recessive alleles.
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3 years ago
During the cell cycle, the cell must pass through several checkpoints that confirm that the cell is ready to progress to the nex
Oduvanchick [21]

Answer:

The correct answer would be - Cells begin dividing faster, leading to cancer.

Explanation:

In the process of the cell cycle, there are several checkpoints that ensures that the cell is all set to move to next phase, the cell that not match the requirements cell have not move to next phase.

These checkpoints control the rate of cell proliferation or division and if a dividing cell fails to pass through any checkpoints due to the mutation, it is most likely divide uncontrollably and lead to cancerous or tumor cell.

Thus, the correct answer is - Cells begin dividing faster, leading to cancer.

3 0
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Which of the following devices is used to determine if an item is horizontal?​
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