LE Unit 2 Review

What is an inorganic molecule?

• A molecule that contains carbon atoms.
• A molecule that is found in living organisms.
• A molecule that does not contain carbon atoms.
• A molecule that is formed by organic reactions.

What is an organic molecule?

• A molecule that contains only carbon atoms
• A molecule that contains hydrogen atoms bonded together
• A molecule that contains oxygen atoms bonded together
• A molecule that contains carbon atoms bonded together in chains or rings

The bulding blocks of proteins are

• carbohydrates
• lipids
• nucleic acids
• amino acids

The building blocks of carbohydrates are

• monosaccharides
• fatty acids
• nucleotides
• amino acids

The building blocks of lipids are

• amino acids and nucleotides
• carbohydrates and proteins
• vitamins and minerals
• fatty acids and glycerol

Nucleotides are the...

• the basic units of proteins
• the energy currency of cells
• building blocks of DNA and RNA
• the components of cell membranes

What is the main function of lipids in living organisms?

• The main function of lipids in living organisms is to provide structural support for cells.
• The main function of lipids in living organisms is to serve as a source of energy, insulation, and protection for organs.
• The main function of lipids in living organisms is to regulate body temperature.
• The main function of lipids in living organisms is to aid in muscle contraction.

What is the main function of carbohydrates?

• Store vitamins
• Build muscle
• Regulate body temperature
• Provide energy

What are the main functions of protein?

• Building and repairing tissues, acting as enzymes, transporting molecules, providing structure and support, serving as antibodies
• Storing and releasing energy, regulating body temperature, facilitating communication between cells, aiding in digestion
• Generating heat, transmitting nerve impulses, regulating blood sugar levels, promoting muscle contraction
• Producing hormones, maintaining fluid balance, controlling pH levels, supporting immune function

What are the main functions of nucleic acids?

• Store and transmit genetic information
• Facilitate protein synthesis
• Regulate gene expression
• Serve as structural components of cells