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Margaret [11]
2 years ago
7

All substances that enter or leave a cell must cross the cell _____

Biology
2 answers:
pychu [463]2 years ago
8 0

Answer:

Cell membrane

Explanation:

Hope it helps

Fudgin [204]2 years ago
6 0

all substance that enter or leave a cell must cross the cell cells membrane

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___populations can have the same species name
Jobisdone [24]

Well it's impossible for different population to have the same name.

So I would say this for the answer.

One population can have the same name.

5 0
3 years ago
Type II topoisomerases display all of the following characteristics EXCEPT
Firlakuza [10]

Answer:

The correct answer is option A. "They only introduce supercoiling and cannot relax a covalently closed circular DNA".

Explanation:

Type II topoisomerases are enzymes that regulate the winding an unwinding of DNA during DNA replication. Basically, these enzymes are the scissor that remove the knots and tangles formed during the replication process. Is false to affirm that type II topoisomerases only introduce supercoiling and cannot relax a covalently closed circular DNA. Bacterial type II DNA topoisomerases  work with the circular DNA of bacterium by changing the linking number of circular DNA by ±2.

6 0
3 years ago
Where are the 2 places that you can find the organelles Ribosomes
Zigmanuir [339]

Answer:

Ribosomes are found 'free' in the cytoplasm or bound to the endoplasmic reticulum (ER) to form rough ER. In a mammalian cell there can be as many as 10 million ribosomes. Several ribosomes can be attached to the same mRNA strand, this structure is called a polysome.

Explanation:

Hope this helps :D

3 0
3 years ago
Help me please thank you
Marianna [84]

The answer is A or the first one

3 0
3 years ago
Read 2 more answers
Which of the following statements regarding proteoglycans is FALSE? Proteoglycans help tissues resist mechanical compression. Pr
Alexandra [31]

Answer:

 Proteoglycans are a major component of compact connective tissues but are relatively unimportant in watery tissues such as the jellylike substance in the interior of the eye.

Explanation:

these are protein that is divided into two classes which are  called large ans small Proteoglycans.

The large proteoglycans has a large number of highly sulfated glycosaminoglycan side-chains that tends to hold water and whereby making the tendon to resist compression while the  small proteoglycans are known to have a relationship with collagen fibrils which are known to regulate collagen fibril diameters. they help in signal regulation  usually  from the angle of intracellular compartments. the are known great for their large diversity especially in terms of different cores and different numbers of GAGs with different lengths and composition.

3 0
3 years ago
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