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otez555 [7]
3 years ago
5

What types of molecules may not need transport proteins to be able to cross cytoplasmic membranes?

Biology
1 answer:
frozen [14]3 years ago
4 0

The correct answer is small hydrophobic molecules.

The smaller the molecule and the more hydrophobic, or nonpolar, it is, the more rapidly it will diffuse across a membrane. It is because of the composition of membrane (lipid bilayer). By contrast, membrane is highly impermeable to charged molecules (ions), no matter how small they are.


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A scientist finds an unusual living thing and decides to study it.
Nadusha1986 [10]
Has to be c















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7 0
3 years ago
Oxygen has six electrons in its outer shell. As a result,oxygen can form up to how many bonds with other elements
tresset_1 [31]

oxygen can only hold two bonds with other elements.

6 0
3 years ago
Assuming a typical monohybrid cross in which one allele is completely dominant to the other, what phenotypic ratio is expected i
IgorC [24]

Answer:

Assuming the dominant allele is represented as A, and the genotype as AA and the recessive as a, and genotype as aa; then the F1 will produce the offispring. Aa, Aa, Aa,Aa in ratio: 1:1:1:1:1

This shows the dominance of allele A.

However if two of  the F1 generation are crossed then:

The  F2 is AA,Aa,Aa,aa the phenotypic ratio is

                        3   ;     1

W<u>hile the Genotypic ratio is ratio;</u>

<u>   1AA : 2Aa Aa; 1aa(1 ;2;1)</u>

Explanation:

8 0
3 years ago
List 3 positive things that humans use algae for:
Svetradugi [14.3K]

Here's a few I got off google

#1: Algae Is Efficient to Create BioFuel.

#2: Algae Can Use Land That Would Otherwise Go to Waste.

#3: Algae Can Be Used for Animal Feed.

#4: Algae Can Function As An Energy Source.

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#6: Algae is a Great Human Food Supplement.

Use which ever ones you want

3 0
3 years ago
In prokaryotes new mutations accumulate quickly in populations, while in eukaryotes new mutations accumulate much more slowly.
Mnenie [13.5K]

Answer: Option A

Explanation:

In Prokaryotes the the rate of new mutations is much more as compared to the eukaryotes. The rate of accumulation of mutation is slow in case of  eukaryote because their generation is long as compared to prokaryotes.

Prokaryotes have short generation time and large population size which enables them to accumulate the mutation quickly.

The machinery is also not that complex when it comes to prokaryotes. Transduction, conjugation and tranposable elements. So, the changes during these processes leads to mutation in the prokaryotes and can be observed quickly due to their small generation.

6 0
3 years ago
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