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Tju [1.3M]
3 years ago
15

WILL GIVE THE BRAINLEST

Biology
1 answer:
Lesechka [4]3 years ago
4 0

Answer:

#2 is B #3 is

Explanation:

Plant cells have cell walls around them, and animal cells don't have cell walls. The cell walls give plant cells their boxy shapes. That's nice for plants, because it gives them the ability to grow up and out, where they can get lots of sunlight for making their food.

The nucleus maintains the integrity of genes and controls the activities of the cell by regulating gene expression- the nucleus is, therefore, the control center of the cell.

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Answer: c). No; while the noncovalent bonds determine the shape of a protein, the peptide bonds are required to hold the amino acids together.

Explanation: Peptide bonds is a type of bond that covalently joins two or more amino acid molecules through a substituted amide linkage. Peptide bond is formed by the removal of the elements of water from the alpha carboxyl group of one amino acid and the alpha-amino group of another amino acid. When two amino acids molecules are joined by peptide bond, the resulting molecule is called a dipeptide, when three amino acids molecules are linked by two peptide bonds, a tripeptide is formed. When a few amino acids are joined by peptide bonds, the structure is called an oligopeptide, when many amino acids are joined, the product is called a polypeptide.

Since the enzyme breaks the peptide bonds, it means that the protein has been broken down into its constituent amino acid, therefore the protein has lost its primary structure and therefore will no longer retain its shape.

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