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What are proteins used for?

Answer 1

Piper Anderson

Very diverse functions..I can answer how they are useful in human body

Cytoskeleton - Cell shape and motility
Hemoglobin - Oxygen transport
Antibodies - Immunity
Enzymes - Catalyze various reactions in the body
Receptors - Signal transduction
Cell membrane - Structural
Transport Proteins
Hormones
Storage proteins
Regulatory Proteins
and a lot of others. Also they have in vitro functions.

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Answer 2

Penelope Adams

In living things, proteins are employed for a wide range of tasks, such as signaling within and between cells, enzymatic reactions, molecular transport, and structural support.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.