Answer:
Secondary level of protein structure
Explanation:
The proteins are formed of the monomer units called amino acids which bond with each other via peptide bond and form a linear peptide structure called the primary level structure of the protein.
The proteins to perform several functions in a cell undergoes structural conformation and attain the helical form called alpha helix due to the involvement of alpha carbon in bond formation and a pleated sheet called beta-pleated sheet due to the involvement of beta carbon. These structures are known as a secondary level of protein structure.
Thus, a Secondary level of protein structure is the correct answer.
It adds bases in only one direction.
The correct answers are:
2) Peptide bonds form from nucleophilic attack by an electron pair on an alpha - amino nitrogen atom on an alpha - carboxyl carbon atom of another amino acid and
4) Peptides are polymers of amino acids.
A peptide bond is an amide type of covalent chemical bond. It is formed between two amino acids: C1 (carbon end) of one alpha-amino acid and N2 (nitrogen end) of another. Peptide bonds are the basis for the formation of a peptide chain and consequently protein. Formation of peptide bond is a condensation process, meaning that when two amino acids combine and link, water molecule is released and dipeptide is a product of that reaction.
A mixture has to do with a combination of two or more substances that are not chemically combined together.
<h3>What is the separation process?</h3>
A mixture has to do with a combination of two or more substances that are not chemically combined together. The following are the answers to the questions.
1) refining
2) nylon
3) all of these.
4) monomer
5) vaporize, condense, and cool
6) plastic
7) solar energy
8) separated and collected.
9) silk
10) asphalt
11) Fractional distillation
12) Bitumen
13) refined
14) boiling points
15) amino acids
16) false
17) false
18) true
19) true
20) false
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