Textbook Question
What are the two types of secondary structures found in polypeptides, and what maintains them?
What stabilizes the tertiary structure of a polypeptide?
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4. Biomolecules
Proteins
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of the following is not a function of proteins?
A
Storing genetic information
B
Transporting molecules across cell membranes
C
Providing structural support
D
Catalyzing biochemical reactions
Verified step by step guidance1
Understand the primary functions of proteins in biological systems. Proteins are versatile molecules that play critical roles in various biological processes.
Recognize that proteins are involved in transporting molecules across cell membranes. This is achieved through protein channels and carriers that facilitate the movement of substances.
Identify that proteins provide structural support. For example, collagen is a protein that provides structural integrity to connective tissues.
Acknowledge that proteins catalyze biochemical reactions. Enzymes, which are proteins, speed up chemical reactions in the body without being consumed in the process.
Note that storing genetic information is not a function of proteins. This role is primarily carried out by nucleic acids, such as DNA and RNA, which store and transmit genetic information.
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