BIO 101 EXAM 2 TEST 2026 VERIFIED
QUESTIONS AND ANSWERS PASS GUIDE
◉ ATP supplies energy by giving up what?
Answer: phosphate groups
◉ What is an organic catalyst, and what is its function?
Answer: enzymes.
enzymes react with a specific substrate in an active site
◉ What are enzymes made of?
Answer: amino acids (proteins)
◉ Why are enzymes effective in SMALL quantities?
Answer: Enzymes are used over an over again because they are not
changed or altered during the reaction
◉ Describe an allosteric enzyme:
Answer: an allosteric enzyme has ONE active site for its specific
substrate and ANOTHER site that binds with an inhibitor molecule
(also called non-competitive inhibition)
, ◉ What 4 things have an effect on enzyme activity? (by altering the
shape of the active site)
Answer: 1. Temperature
2. pH
3. Feedback inhibition
4. Chemicals that fit into allosteric sites
◉ One of the main functions of an enzyme is to ___ so that the
reaction can ___
Answer: One of the main functions of an enzyme is to LOWER THE
ACTIVATION ENERGY so that the reaction can OCCUR AT BODY
TEMPERATURE
◉ Describe a cofactor:
Answer: Certain METAL IONS and COENZYMES called COFACTORS
are needed for some enzymes to function. An example is the IRON
ION. (which is necessary for the enzyme hemoglobin to accept O2)
◉ Describe simple diffusion:
Answer: Moves WITH the concentration gradient ([H] to [L]).
No energy is required.
Some structures involved are a FATTY ACID BILAYER.
Some examples of the substances transported are GASES (O2 and
CO2) and FATTY ACIDS.
QUESTIONS AND ANSWERS PASS GUIDE
◉ ATP supplies energy by giving up what?
Answer: phosphate groups
◉ What is an organic catalyst, and what is its function?
Answer: enzymes.
enzymes react with a specific substrate in an active site
◉ What are enzymes made of?
Answer: amino acids (proteins)
◉ Why are enzymes effective in SMALL quantities?
Answer: Enzymes are used over an over again because they are not
changed or altered during the reaction
◉ Describe an allosteric enzyme:
Answer: an allosteric enzyme has ONE active site for its specific
substrate and ANOTHER site that binds with an inhibitor molecule
(also called non-competitive inhibition)
, ◉ What 4 things have an effect on enzyme activity? (by altering the
shape of the active site)
Answer: 1. Temperature
2. pH
3. Feedback inhibition
4. Chemicals that fit into allosteric sites
◉ One of the main functions of an enzyme is to ___ so that the
reaction can ___
Answer: One of the main functions of an enzyme is to LOWER THE
ACTIVATION ENERGY so that the reaction can OCCUR AT BODY
TEMPERATURE
◉ Describe a cofactor:
Answer: Certain METAL IONS and COENZYMES called COFACTORS
are needed for some enzymes to function. An example is the IRON
ION. (which is necessary for the enzyme hemoglobin to accept O2)
◉ Describe simple diffusion:
Answer: Moves WITH the concentration gradient ([H] to [L]).
No energy is required.
Some structures involved are a FATTY ACID BILAYER.
Some examples of the substances transported are GASES (O2 and
CO2) and FATTY ACIDS.
