Chemistry in biology - The building blocks of life

8 important questions on Chemistry in biology - The building blocks of life

What is the role of phospholipids?

A lipid called a phospholipid is responsible for the structure and function of the cell membrane.

What is the main idea of the section "The Building Blocks of Life"?

Organisms are made up of carbon-based molecules.

What are nucleic acids?

Nucleic acids are complex macromolecules that store and transmit genetic information.
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What are the functions of lipids?

Lipids:
  • stores energy
  • provides steroids
  • waterproofs coatings

What are the functions of proteins?

Proteins:
  • transports substances
  • speeds reactions
  • provides structural support
  • provides hormones

What helps a protein hold its shape?

Hydrogen bonds help the protein hold its shape.

What are the two basic protein shapes shown in the figure?

The two basic protein shapes are the helix and the pleat.

What are carbohydrates composed of?

Carbohydrates are composed of carbon, hydrogen, and oxygen with a ratio of one oxygen and two hydrogen atoms for each carbon atom: CH₂O.

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