week 9 biomolecules and enzymes

The diagram below shows the general structure of an amino acid. Which type of molecule is formed from amino acids?

• lipids

• proteins

• carbohydrates

• nucleic acids

You are analyzing a compound in the laboratory. You find that it is made up of carbon, hydrogen, and oxygen in a ratio of two hydrogen atoms for each carbon atom. How will you classify the compound?

• lipid

• protein

• carbohydrate

• nucleic acid

Fats, oils and cholesterol are all types of what?

• cell membranes

• hormones

• lipids

• fatty acids

RNA and DNA are which type of macromolecules?

• Carbohydrate

• lipid

• nucleic acid

• protein

A sugar, a phosphate group, and a nitrogen base form the building blocks of which organic compound?

• carbohydrates

• lipids

• nucleic acids

• proteins

The human body maintains a temperature of around 98.6 degrees at all times. Enzymes are involved in almost every chemical reaction in the body. Which of the following describes the connection between these two statements?

• Enzymes function best at a specific temperature.

• The body needs to be warm to prevent hypothermia.

• The body is kept relatively warm to prevent too much enzyme action.

• There is no connection between the two statements.

The enzyme lactase will break down the sugar lactose into which of the following components?

• monosaccharides

• nucleic acids

• amino acids

• phospholipids

Identify the biomolecule

• Carbohydrate
• Lipid
• Protein
• Nucleic Acid

Identify the biomolecule

• Lipid
• Protein
• Carbohydrate
• Nucleic Acid

What type of molecule is this?

• Nucleic acid
• Protein
• Carbohydrate
• Lipid