BIOLOGY
STRUCTURE OF PROTEINS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They provide a hydrophobic membrane
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They act as antibodies in the immune system
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They make-up structures such as muscles
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They regulate cell processes by helping to speed up chemical reactions (enzymes)
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Detailed explanation-1: -Answer and Explanation: The correct answer is E) store cellular nutrients. Cell membrane proteins cannot store cellular nutrients as they are far too small and located in an inconvenient location to actually distribute these nutrients throughout the cell.
Detailed explanation-2: -However, proteins do not provide energy for metabolism.
Detailed explanation-3: -Membrane proteins serve a range of important functions that helps cells to communicate, maintain their shape, carry out changes triggered by chemical messengers, and transport and share material.
Detailed explanation-4: -Membrane proteins expose surfaces that are ideally suited for incorporation into, or binding to, membranes. Integral membrane proteins have hydrophobic surfaces that allow and demand that they are incorporated into the hydrophobic portion of the lipid bilayer.