Biology Biochemistry Test Review part 1

Which of the following is not one of the 4 major macromolecules of living things?

• amino acid

• nucleic acid

• lipid

• protein

When 2 water molecules are attracted to each other due to polarity.

• molarity

• ionic bonding

• adhesion

• cohesion

A substrate bind to the __________ of an enzyme.

• product

• reactants

• antigen

• active site

Which is true about unsaturated fats?

• made of nucelotides

• are a solid at room temperature

• they have a double bond

• they do not have a double bond

There are ______ different amino acids.

• 10

• 20

• 100

• 200

A change in temperature or pH can cause an enzyme to change shape. An enzyme is said to be _____________ if it shape changes.

• activated

• denatured

• produced

• functional

A monosaccharide is a monomer (building block) of ______

• lipids

• carbohydrates

• fatty acids

• nucleotides

Which polymer can store energy for a long time?

• nucleic acids

• carbohydrates

• glucose

• lipids

Which of the following are examples of Nucleic acids?

• DNA and RNA

• glycerol and fatty acids

• glucose and fructose

• amino acids and fatty acids

What does a catalyst do?

• turn on an enzyme

• turn off an enzyme

• increase or decrease pH

• lowers the activation energy of a chemical reaction