Biochemistry test

What is the maximum number of bonds a carbon atom can form with another atoms?

• 3

• 2

• 4

• 6

Which term describes the synthesis of complex molecules from simpler molecules?

• adhesion

• catabolism

• metabolism

• anabolism

Which can be explained by the solvent properties of water?

• Sodium chloride is transported as Na⁺ and Cl^– in blood.

• Movement of water occurs under tension in the xylem.

• Water is the coolant in sweat.

• Ice floats on liquid water.

Which substance must be transported in the blood by lipoprotein complexes?

• Cholesterol

• Oxygen

• Sodium chloride

• Amino acids

A polymer of alpha-D-glucose found in plants has mostly 1,4 linkages and some 1,6 linkages. Which molecule fits this description?

• Glycogen

• Cellulose

• Amylose

• Amylopectin

Which type of reaction is the breakdown of starch into sugars?

• Denaturation

• Reducation

• Catabolic

• Condensation

Which molecule is a polysaccharide?

• Glucagon

• Glucose

• Glycerol

• Glycogen

What property of water makes it suitable as a coolant?

• It takes a lot of energy to increase the temperature of water.

• It takes a lot of energy for water to evaporate.

• Water molecules are cohesive and stick to the skin.

• Water is a good solvent so it can transport heat from the body.

Which type of chemical reaction is an example of anabolism?

• Phytolysis

• Combustion

• Hydrolysis

• Condensation

the breaking of a large molecule (polymer) into smaller ones (monomers)

• Triglycerides
• Disaccharides
• Condensation
• Hydrolysis