AP Bio Chapters 7 & 8
Cell respiration is most accurately described as
a catabolic process
PS I
accepts the electron and re excites it to NADPH
PS II
accepts the electron from water splitting and re excites it to make ATP
First step n calvin cycle is
attachment of carbon dioxide to RuBP
At night CAM plants incorporate CO2 into oxaloacetate which is converted to ___ and is stored in the ___ of the cells
malate (4 carbon), vacuoles
formation of acetly coenzyme A, citric acid cycle, electron transport and chemiososis take place where
mitochondrian
In aerobic respiration glucose is completely
oxidized to carbon dioxide
In aerobio respiration the electrons associated with the hydrogen atoms in glucose are transferred to
oxygen in a series of steps
The process by which light energy is converted into the stored chemical energy of organic molecules is
photosynthesis
During respiration most ATP is formed as a direct result of the net movement of
protons down a concentration gradient
In glycolysis a six carbon glucose molecule is converted to two 3 carbon molecules of
pyruvate
The electrons lost by P680 (PS II) reactive center are replaced form
water molecule
the results of one turn of the krebs cycle
1 ATP, 1 FADH, 3 NADH+
Gycolysis yields a net energy profit of ___ ATP molecules of glucose
2
How many electrons are needed to reduce one molecule of NADP+ to NADPH
2
Considering only gycolysis and the conversion of pyruvate molecules to acetyl CoA molecules how many NADH molecules will be produced from 1 glucose molecule
4
In the citric acid cycle 2 acetyl CoA molecules are metabolized to
4CO2 + 6NADH +2 FADH2 +2 ATP
Over all reactions of photosynthesis is
6 CO2 + 12 H2O -> C6H12O2 + 12 O2
Cellular respiration equation
6O2 + C6H12O6 -> 6CO2 +6H2O + Energy
Chemiosmosis allows exergonic redox processes to drive the endergonic reaction in which
ATP is produced by a phosphorlation of ADP
In chemiosmosis ATP is produced as hydrogen ions pass though
ATP synthase
Thylakoid membranes are involved in
ATP synthesis
the reactants of the calvin cycle are
CO2, ATP, NADPH
During photosynthesis ____ is reduced and ___ is oxidized
CO2; H2O
Whats associated with the thylakoid membranes
ETC, ATP synthetase, photosystems I and II, antenna complex
Oxygen produced by photosynthesis comes directly from
H2O
The reactants of the light dependent reactions are
H2O, ADP, NADPH
WHat is the finial electron accpetor in photosynthesis?
NADPH
Intermediate or products of carbon fixation reactions
PGA, glyceraldehyde 3-phosphate, glucose. ribulose bisphsphate
Red and blue lights support the highest rates of photosynthesis because
chlorophyll absorbs these wavelengths more than others
Over all functions of the Calvin Cycle
fix CO2 to reduce to make organic molecules like G3P
Thylakoid sacs are sometimes arranged in stacks called
gana
which of the following metabolic pathways is common to all cells
glycolysis
organisms that cannot make their own food and must obtain energy from foods they eat are called
heterotrophs
ATP is formed when ___ the thylakoid lumen
hydrogen ions leave
The reactions of photosynthesis are divided into 2 categories
light-dependent reactions and carbon fixation reactions
Aerobi respiration is classified as a
redox process
NADH and FADH2 are the products of
reduction reactions
oxygen consumption can be used as a measure of metabolic rate because oxygen is
required by all living organisms
A glucose molecule that is metabolized via aerobic respiration has been completely broken down and released as CO2 by the end of
the citric acid cycle
The electron transport chain is located in
the thylakiod membrane
Chlorophyll and accessory photosynthetic pigments are associated with
thylakoid membranes
the role of oxygen molecules required for aerobic respiration is
to accept the low energy electrons at the end of the electron transport chain
