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Soloha48 [4]
3 years ago
14

Simple diffusion and facilitated diffusion are related in that both require protein carriers A. depend on a concentration gradie

nt B. occur via contractions of cytoskeletal elements attached to membrane proteins C. are endergonic processes and thus require the hydrolysis of ATP D. occur in eukaryotic cells but not in prokaryotic cells
Biology
1 answer:
vodomira [7]3 years ago
8 0

Answer:

A. depend on a concentration gradient

Explanation:

Simple and facilitated diffusion are the two methods of transport of substances down their concentration gradient. In both processes, substances are moved from the region of their higher concentration to that of their lower concentration. Since simple diffusion and facilitated diffusion are passive processes, there is no requirement of energy input to drive them. Both are driven by the concentration gradient of the substances only.

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Which relationship is different? monosaccharide / polysaccharide phospholipid / lipids amino acid / protein nucleotide / nucleic
vitfil [10]

The correct answer is phospholipid / lipids.

All of the pairs represent the combination of macromolecules with their basic units.

In the case of lipids, basic building blocks are free fatty acids, not phospholipids. Phospholipids are a class of lipids composed of two hydrophobic fatty acid "tails" and a hydrophilic "head" consisting of a phosphate group which are joined together by a glycerol molecule.

5 0
4 years ago
What is arson? Why is it difficult to obtain good statistics on arson?
MrMuchimi

Arson is where a person purposely sets something on fire. Statistics are hard to find, because they are mostly kept in police records.

6 0
3 years ago
What genes direct the
Valentin [98]

Answer:

a. hox genes.

Explanation:

HOX genes have the following functions:

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The vertebrates are highly preserved.

The clusters and other genes occur uninterrupted.

Evolutionary, the heterogeneous regulatory areas between the genes most previously present are larger and more preserved than those present at the other ends of the clusters.

The characteristical feature is that these are homeodomain proteins with a highly preserved area of DNA binding encoded with homeobox gens.

3 0
3 years ago
What are altitudes? help pls
bazaltina [42]

Answer:

Altitude is how high vertically something is by definition

1 : height above a certain level and especially above sea level. 2 : the perpendicular distance from the base of a geometric figure to the vertex or to the side parallel to the base.

5 0
3 years ago
Which answer is not a mechanism for evolution? Genetic Drift Mutations Gene pool Natural Selection
lawyer [7]
Genetic drift I think
3 0
3 years ago
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