Download Metabolism Objective Project

By Ashlyn Creamer
Metabolism
ATP
Cellular Respiration
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Photosynthesis
Anabolic processes consume energy to build more
complicated molecules from simpler ones, while
catabolic processes _______ molecules
break down
Row 1, Col 1
What are the 3 components of an ATP molecule?
ATP (Adenosine Triphosphate)
is composed of 1) the sugar ribose,
2) the nitrogenous base adenine, and
3) a chain of three phosphate groups
1,2
How many net ATP molecules are produced during
glycolyis?
2 ATP
1,3
Photosystem I produces ___ while photosystem II
produces ___?
NADPH; ATP
1,4
Cellular respiration is a (exergonic/endergonic) because
it (releases/consumes) energy.
Exergonic; releases
2,1
The production of which enzyme inhibits ATP (and
citrate) production during cellular respiration?
Phosphofructokinase
2,2
Name three differences between anaerobic and aerobic
respiration (TIP: think about the products produced and
how much energy is made!)
(Student only needs to get three of these!)
1) Anaerobic is without the presence of oxygen, while aerobic is with
2) Anaerobic only makes 2 ATP per glucose molecule, aerobic makes between 30-32
3) In anaerobic respiration, the final electron acceptor is an organic molecule such as
pyruvate. In aerobic respiration, it’s oxygen.
4) Anaerobic respiration produces carbon dioxide, ATP, and either lactic acid or ethyl
alcohol. Aerobic respiration produces carbon dioxide, water, and ATP
5)Anaerobic respiration only occurs in the cytoplasm while aerobic occurs in both
the cytoplasm and mitochondria
2,3
Where do the electrons entering photosystem II come
from?
The splitting of water molecules
provides the source of electrons
for photosystem II.
2,4
Where does a competitive inhibitor bind and what are
the effects? Where does a noncompetitive inhibitor bind
and what are the effects?
Competitive inhibitors bind at the active site,
and they reduce the productivity of enzymes
by blocking substrates from entering active sites
Non competitive inhibitors bind away from the active
site, but change the shape of the enzyme so the active
site functions less effectively.
3,1
How many ATPs are made in glycolysis (net), pyruvate
oxidation, Kreb’s cycle, and the electron transport chain?
Glycolysis: 2 net ATP
Pyruvate Oxidation: 0 ATP
Kreb’s Cycle: 2 ATP total (a cycle for each pyruvate)
Electron Transport Chain: 26-28 ATP
3,2
What is the final electron acceptor in the electron
transport chain and why is this important?
Oxygen; Oxygen captures the electrons (it’s very
electronegative!) in the very last step of electron
transport, adding a pair of electrons to an
oxygen atom and two hydrogen ions, forming water
3,3
Where do light reactions occur in the chloroplasts?
Where does the Calvin Cycle occur? What are the
products of each?
Light reactions occur in the
thylakoids and produce O2
The Calvin Cycle occurs in
the stroma and produces G3P
(Glyceraldehyde 3-Phosphate)
3,4
The binding of an allosteric inhibitor to an enzyme
causes the rate of product formation by the enzyme
to_______. Why?
Decrease; In general, any allosteric regulator
functions by changing the structure of
the enzyme to either change the
ability of the active site to bind the substrate
or to facilitate the chemical reaction.
4,1
ATP, being the product of photosystem __, is used
during the ________ to build one molecule of G3P from
three CO2 molecules
II; Calvin Cycle
4,2
In order for proteins to participate in cellular respiration,
the NH3 (amino group) must be removed through
________. In order for fats to participate in cellular
respiration, ___________ must take place (the removal
of two carbon molecules at a time). Why do fats produce
twice as much ATP as carbohydrates?
Deamination; beta-oxidation; because fats are
better electron donors than sugars (they have
more hydrogen atoms, which are far less
electronegative than oxygen atoms. The
hydrogen atoms won’t “hog” the electrons
like oxygen would.
4,3
Hydrogen ions (H+) built up in the thylakoid
compartment after electrons were transferred through the
electron transport chain. The hydrogen ions then pump
through the ______ to produce ____
ATP synthase; ATP
4,4
Which is the most abundant form of energy in a cell?
-Kinetic energy
-Chemical energy
-Heat
-Mechanical energy
-Electrochemical gradients
Chemical energy
5,1
The generation of ATP is an ______ process while the
hydrolysis (and release of energy) of ATP is an
________ process.
Endergonic; exergonic
5,2
Where does the citric acid cycle occur and what are the
products for 1 cycle/1 pyruvate?
In the matrix of mitochondria;
1 ATP, 1 FAD2, 2 CO2, 3 NADH
5,3
The reactions of the Calvin cycle are not directly
dependent on light, but they usually do not occur at
night. Why does this occur??
The Calvin cycle requires products only produced when
the photosystems are illuminated. (The ATP and NADPH produced
during the light reactions are necessary for the Calvin cycle).
5,4