Biology Macromolecule Review

What is the basic unit of structure and function for living organisms?

• cell

• atom

• molecule

• organ

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The chemical formula for glucose is C₆H₁₂O₆ Which type of molecule is it?

• protein

• carbohydrate

• nucleic acid

Which function is performed by a nucleic acids?

• provide energy

• function as enzymes

• store genetic information

• form structural materials like muscles and bones

This macromolecule has been associated a great deal with muscle building and is often used during pre- and post workouts to replenish the body of the necessary nutrients it needs to promote increased muscle function and growth. Which macromolecule is made up of a chain of amino acids and allows the muscles to contract making body movement possible?

• carbohydrates

• lipids

• nucleic acids

• proteins

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Four different types of macromolecules and their characteristics are listed below. What type of macromolecule is D?

• carbohydrate

• lipid

• nucleic acid

• protein

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A digestive enzyme that is released into the small intestines by the pancreas is used to break down proteins. Data from a chemical reaction with the digestive enzyme are shown in the graph below.

According to the graph, which conclusion can be made about this digestive enzyme?

• It functions most efficiently from pH 7.0 to pH 9.0.

• It will work best if pH levels increase above pH 10.0.

• It breaks down the most proteins between pH 1.0 and pH 5.0.

• It is effective at breaking down proteins from pH 1.0 to pH 10.0.

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The effect of temperature on the relative rate of enzyme activity is shown.

Which statement is a valid conclusion based on the information in the graph?

• The maximum rate of human respiration occurs at about 57°C.

• The maximum rate of human digestion occurs at about 45°C.

• Growth can be controlled by the action of an enzyme.

• Temperature can influence the action of an enzyme.

Which of the following statements can be attributed to water's versatility as a SOLVENT?

• Frozen water floats on top of liquid water.

• Blood is able to flow through small vessels.

• Nutrients from food can dissolve into blood.

• An air bladder allows fish to regulate buoyancy in the water.

Which of the following elements are found in all macromolecules? (Select all that apply).

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• 
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Which of the following is not one of the four major classes of macromolecules?

• Lipids

• Carbon

• Protein

• Carbohydrates

• Nucleic Acid