Which of the following statements is true with respect to Figure 1?
Pepsin and pancreatic amylase could never function together in the same part of the body at the same time.
Enzymes increase the rate of a reaction by
decreasing the activation energy.
aligning the reactants in the transition state.
Some enzymes require the presence of an organic non-protein molecule in
order to behave catalytically. This
organic non-protein molecule is called a(n):
coenzyme
.
_______ Enzymes interact with specific substrates
true
Enzymes change shape after a reaction occurs
false
Enzymes speed up reactions
true
One enzyme can be used for many different types of chemical reactions.
false
Enzyme reactions can be slowed or halted using inhibitors.
true
.
Raising the temperature towards the optimum temperature will ( increase /decrease / not change ) the rate of reaction.
increase
Boiling will ( increase / decrease / not change )
the rate of reaction.
decrease
Changing the pH toward the optimal pH will ( increase / decrease / not change ) the rate
of reaction.
increase
Introducing a competitive inhibitor will ( increase / decrease / not change ) the rate of
reaction.
decrease
What is the major pigment involved in
photosynthesis?
chlorophll
Where in the plant is this pigment located?
5)
What are the two stages of photosynthesis?
thylakoid
Most leaves look green when sunlight shines on them because…
chlorophyll relects green
What are the two stages of photosynthesis?
light independent and light dependent
Then entire process of photosynthesis occurs in one organelle—name that organelle!
Chloroplasts
The oxygen released in photosynthesis comes from
water
What accumulates inside the thylakoid and then flows
through ATP-synthase to power the production of ATP?
hydrogen
ions
The electrons that are passed to NADP+ during light-dependent reaction were obtained from
chlorophyll
Which of the following is most descriptive of an electron transfer chain?
It transfers energy in a stepwise manner from one compound to another.
What is the carbon source for photosynthesis?
carbon dioxide
What cyclical metabolic pathway in photosynthesis uses this carbon source?
carbon benson
What molecule is made with the carbons?
glucose
When NAD+ combines with hydrogen and an electron, the NAD+ becomes
reduced
The light-independent reactions of photosynthesis:
CHOOSE ALL CORRECT ANSWERS
fix carbon dioxide into a stable organic compound.
produce glucose which is most commonly
stored as starch or sucrose
Photosynthesis occurs entirely in the
choroplast
The two halves of photosynthesis are the
light dependent/light independent
The light dependant reactions occur in the_______________ while the light independent reactions occur in the __________________.
The light dependant reactions occur in the _____thylakoid__________ while
the light independent reactions occur in the ___stroma_______________.
The reactants and energy sources of the light dependant
reactions are
ADP,NAPD,WATER, SUNLIGHT
The products of the light dependant reactions
are
ATP, NHPD, GAS
Photolysis is the process of splitting ____________ to gain
electrons for the _____________ electron flow, which produces ____________ gas.
WATER, noncyclic, OXYGEN
The _________ and ___________ (energy carriers from the light dependant reactions in the
thylakoids) are then used by the ______________________ reactions, also called
the _____________________ cycle.
ATP, NADPH , LIGHT INDENDENT, CARBON BENSON
The reactants of the light independent reactions are
_________________ from the air, and ______________, ____________, the energy
carriers from the light dependant rxns.
The reactants of the light independent reactions are
__CO2_______________ from the air, and __ATP____________, ___NADPH_________, the energy
carriers from the light dependant rxns.
The products of the light independent reactions are
_______________ and the low energy forms of the energy carriers _______ and
__________, which will return to the __________________ to become energized
again by the light dependant reactions.
The products of the light independent reactions are
___GLUCOSE____________ and the low energy forms of the energy carriers _ADP______ and
__________, which will return to the __THYLAKOID________________ to become energized
