Unit 4 Test Review

Carbohydrates are more easily metabolized than lipids, however, on a gram to gram basis lipids provide cells with more_

• nitrogen

• protein

• structure

• energy

Which biomolecule stores energy long term?

• protein

• carbohydrate

• lipid

• nucleic acid

Which biomolecule stores and transmits genetic information?

• carbohydrate

• lipid

• protein

• nucleic acid

Which bimolecule is used as the main source of energy?

• carbohydrate

• lipid

• protein

• nucleic acid

Which biomolecules builds bone and muscle?

• carbohydrate

• lipid

• protein

• nucleic acid

Ferritin is a protein containing iron, which is needed by all living things. Glycogen is a carbohydrate that can be hydrolyzed as glucose as needed by an organism. How are ferritin and glycogen similar in their primary functions for an organism?

• Both support the structure of the organism

• Both store energy used by organism

• Both store materials needed by the organism

• Both store information for the organism

The specific reactants that an enzyme acts on are called-

• Catalysts

• Proteins

• Amino acids

• Substrates

What would happen if the temperature increased to 45 C and caused the shape of the active site to be changed?

• The protein fragment would be digested faster

• The protein fragment would be digested slower or not at all

• The amino acids would combine faster

• The amino acids would combine slower or not at all

What do all lipids have in common?

• They produce quick energy

• They don't dissolve in water

• They are saturated with Hydrogens

• Their compositions differ only by R-groups

Lactose and fructose are-

• Carbohydrates

• Lipids

• Nucleic Acids

• Proteins