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Biology Chapter: Polymers and Proteins

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Questions and Answers

What is the primary function of phospholipids in biological systems?

Catalyzing biochemical reactions

Hormone signaling

Maintaining cell membrane integrity (correct)

Energy storage

Which of the following elements are components of proteins?

C, H, O, P

C, H, N, S

C, H, O, N, P

C, H, O, N (correct)

What is the role of steroids in biological systems?

Building structural components

Providing energy storage

Serving as hormones for signaling (correct)

Storing genetic information

What are the monomers of nucleic acids?

<p>Nucleotides</p> Signup and view all the answers

Which of these statements is true about phospholipids?

<p>They help in cell membrane formation.</p> Signup and view all the answers

Study Notes

Polymers

Polymer 2 (Phospholipid):
- Composed of a phosphate group and fatty acid tails.
- Forms a bilayer in cell membranes.
- Phosphate group is hydrophilic (attracts water).
- Fatty acid tails are hydrophobic (repel water).
Polymer 3 (Steroid):
- Cholesterol is a type of steroid.
- Important component of cell membranes.
- Makes the membrane sturdy and helps hold it together.
- Involved in hormone signaling

Proteins

Composition:
- Made up of carbon, hydrogen, oxygen, and nitrogen (C, H, O, N).
Function:
- Crucial for structure and support.
- Act as enzymes, facilitating biochemical reactions.
Monomer:
- Amino acids.
Polymer:
- Polypeptide chain.

Nucleic Acids

Composition:
- Made up of carbon, hydrogen, oxygen, nitrogen, and phosphorus (C, H, O, N, P).
Function:
- Store and transmit genetic information.
Monomer:
- Nucleotides.
- Composed of a phosphate group, a sugar, and a nitrogenous base.
Polymer:
- Polypeptide chains/ DNA or RNA.

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Description

Explore the fascinating world of polymers, proteins, and nucleic acids in this quiz. Learn about their compositions, functions, and structures, including important concepts like phospholipids, steroids, and amino acids. Test your understanding of the building blocks of life!