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Scrat [10]
3 years ago
12

In facilitated diffusion, __________ proteins provide openings in the plasma membrane for substances to flow through without cha

nging structure, and __________ proteins allow passage of substances through the plasma membrane after undergoing a subtle change in shape.
Biology
1 answer:
denpristay [2]3 years ago
7 0

Answer: CHANNEL PROTEINS provide openings in the plasma membrane for substances to flow through without changing structure, and CARRIER PROTEINS allow passage of substances through the plasma membrane after undergoing a subtle change in shape.

Explanation: They are described thus:

A channel protein is a protein that allows the transport of specific substances across a cell membrane.

Carrier proteins are proteins that carry substances from one side of a biological membrane to the other. Many carrier proteins are found in a cell’s membrane, though they may also be found in the membranes of internal organelles such as the mitochondria, chloroplasts, nucleolus, and others.

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Differentiate cells............
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3 years ago
Bb mates with BB?
katen-ka-za [31]

In complete dominance, the dominant alleles hide the expression of the recessive allele. Option C. All of the offspring will exhibit the

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<h3>What is complete dominance?</h3>

Complete dominance occurs when one of the alleles -the dominant one- completely hides the expression of the other allele -the recessive one- in heterozygous individuals.

Cross: BB   x   Bb

Gametes: B   B     B   b

F1)

50% of the progeny will be homozygous  BB

50% of the progeny will be heterozygous Bb

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The correct option is C. All of the offspring will exhibit the dominant trait.

You will learn more about complete dominance at

brainly.com/question/1953851

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