Chemistry of Life

4 main types of carbon-based molecules found in living things.

• sugars, fats, amino acids, and vitamins
• sugars, fats, amino acids, and minerals
• sugars, fats, amino acids, and enzymes
• carbohydrates, lipids, proteins, and nucleic acids

How do carbohydrates and lipids differ in terms of energy storage?

• Carbohydrates and lipids are both stored as glycogen in the liver and muscles.
• Carbohydrates and lipids are both stored as triglycerides in adipose tissue.
• Carbohydrates are stored for short term energy and lipids are long term.

• Lipids are short term energy storage, and carbohydrates are long term.

What are the 2 nucleic acids found in living things?

• DNA and RNA
• Protein and Lipid
• Carbohydrate and Lipid
• Protein and Carbohydrate

What is the relationship between a catalyst and an enzyme.

• An enzyme is a type of catalyst.
• An enzyme is a type of inhibitor.
• A catalyst and an enzyme are unrelated.
• A catalyst is a type of enzyme.

How does homeostasis relate to enzyme activity.

• Homeostasis and enzyme activity are unrelated.
• Enzyme activity disrupts homeostasis.
• Homeostasis regulates enzyme activity to maintain optimal conditions.
• Homeostasis has no effect on enzyme activity.

Often athletes “carb load" or eat a lot of carbohydrates the night before an athletic event. Explain why this may help their performance.

• Carbohydrates help to build muscle strength.
• Carbohydrates provide energy for muscles during the event.
• Carbohydrates reduce the risk of injury during the event.

What is the monomer of a nucleic acid?

• amino acid
• lipid
• carbohydrate
• nucleotide

What is the polymer of an amino acid?

• nucleic acid
• lipid
• carbohydrate
• protein

What is the monomer of a carbohydrate?

• protein
• disaccharide
• monosaccharide
• polysaccharide

What polymer do you get when you combine a glycerol with fatty acid chains?

• Protein

• Lipid

• Carbohydrate

• Nucleic acid