BIOLOGY
PROTEINS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Proteins function to help speed up reactions, copy DNA, and transport moleculesLipids allow things to enter/leave the cell and can store energy.
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Proteins all things to enter/leave the cell and can store energyLipids function to help speed up reactions, copy DNA, and transport molecules.
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None of the above
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None of the above
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Detailed explanation-1: -The difference is that lipids contain fatty acids and glycerol, while proteins contain amino acids, which have nitrogen.
Detailed explanation-2: -A fundamental task of proteins is to act as enzymes-catalysts that increase the rate of virtually all the chemical reactions within cells. Although RNAs are capable of catalyzing some reactions, most biological reactions are catalyzed by proteins.
Detailed explanation-3: -An enzyme is a biological catalyst and is almost always a protein. It speeds up the rate of a specific chemical reaction in the cell.
Detailed explanation-4: -The sequence of amino acids determines each protein’s unique 3-dimensional structure and its specific function. Amino acids are coded by combinations of three DNA building blocks (nucleotides), determined by the sequence of genes.