LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

BIOCHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which is true about the structure of starch molecules and proteinmolecules?
A
Starches and proteins are both polymers.
B
Starches and proteins are both amino acids.
C
Starches and proteins are both built from simple sugars.
D
Starches and proteins are both built from nucleic acids.
Explanation: 

Detailed explanation-1: -Which is true about the structure of starch molecules and protein molecules? Starches and proteins are both polymers. Starches and proteins are both amino acids. Starches and proteins are both built from simple sugars.

Detailed explanation-2: -Proteins, enzymes, starches, and cellulose are all natural polymers. Proteins including enzymes are formed from the repeated linking of amino acid building blocks. Enzymes are specific proteins that catalyze specific reactions inside organisms.

Detailed explanation-3: -The best explanation for why carbohydrates and proteins are classified as polymers is because they are made up of many similar small units, monomers.

Detailed explanation-4: -Therefore, a protein is made of many monomers called amino acids. Carbohydrate polymers are long chains of repeated simple sugar monomers joined together. For example, as you can see in the diagram below, when many molecules of glucose are joined together, they form a macromolecule called starch.

Detailed explanation-5: -Proteins are polymers of amino acids joined together by peptide linkages. Proteins have primary, secondary, tertiary, and sometimes quaternary structure. Lipids are joined together by ester linkages. Carbohydrates are simple sugars and sugar polymers consisting of monosaccharides joined together by glycosidic linkages.

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