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Kryger [21]
2 years ago
12

What is a major difference between the structure of a cell wall and a cell membrane

Biology
1 answer:
poizon [28]2 years ago
8 0

Answer:

The cell wall is the outside layer and the cell membrane is the inner layer. Cell walls are made  of cellulose and lignin, while cell membranes contain phospholipids. Cell walls are made of cellulose and cell membranes are made of proteins. The cell wall is the rigid structure the surrounds the cell and the cell membrane is flexible and skin like and surrounds the cytoplasm.

Explanation:

Hope this helps! pls give brainliest:)

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Which area of biology states that living things undergo gradual, structural, and functional changes over long periods of time
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Given what we know,  we can confirm that the area of biology that states that living things undergo gradual, structural, and functional changes over long periods of time is referred to as evolution.

<h3>What we know about evolution. </h3>
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Therefore, we can confirm that the theory of evolution put forward by Charles Darwin states that living things undergo gradual, structural, and functional changes over long periods of time.

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6 0
2 years ago
A certain bacterial mRNA is known to represent only one gene and to contain about
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Answer:

C) 30,000

Explanation:

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So, an mRNA with 800 nucleotides will have total 800/3 = 266.67 or 266 genetic codes. The protein encoded by this mRNA would have a total of 266 amino acids.  

Given that one amino acid imparts 110 units to the molecular weight of the protein, the protein with 266 amino acids have the molecular weight= 266 x 110 = 29260, that is about 30,000.  

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