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WorksheetsAP Biology Midterm Review Ch 7 and 8
Total questions: 23
Worksheet time: 12mins
What is the term for metabolic pathways that release stored energy by breaking down complex molecules?
anabolic pathways
catabolic pathways
fermentation pathways
thermodynamic pathways
In autotrophic bacteria, where is chlorophyll located?
in the nucleoid
in the ribosomes
in chloroplast membranes
in the infolded plasma membrane
Even though plants carry on photosynthesis, plant cells still use their mitochondria for oxidation of pyruvate. When and where will this occur?
in all cells all the time
in nonphotosynthesizing cells only
in cells that are storing glucose only
in photosynthetic cells in the light, while photosynthesis occurs concurrently
The molecule that functions as the reducing agent (electron donor) in a redox or oxidation-reduction reaction
gains electrons and gains potential energy.
loses electrons and loses potential energy.
gains electrons and loses potential energy.
loses electrons and gains potential energy.
Where does glycolysis take place in eukaryotic cells?
cytosol
mitochondrial matrix
mitochondrial inner membrane
mitochondrial intermembrane space
When hydrogen ions are pumped from the mitochondrial matrix across the inner membrane and into the intermembrane space, the result is
the formation of ATP.
the reduction of NAD+.
the creation of a proton-motive force.
the restoration of the Na+/K+ balance across the membrane.
The ATP made during glycolysis is generated by
chemiosmosis.
electron transport.
photophosphorylation.
substrate-level phosphorylation.
Why are carbohydrates and fats considered high-energy foods?
They have a lot of oxygen atoms.
They have no nitrogen in their makeup.
They can have very long carbon skeletons.
They have a lot of electrons associated with hydrogen.
What is the primary function of the Calvin cycle?
split water and release oxygen
use NADPH to release carbon dioxide
transport RuBP out of the chloroplast
synthesize simple sugars from carbon dioxide
Carbon dioxide (CO2) is released during which of the following stages of cellular respiration?
oxidative phosphorylation and fermentation
glycolysis and the oxidation of pyruvate to acetyl CoA
glycolysis and the oxidation of pyruvate to acetyl CoA
oxidation of pyruvate to acetyl CoA and the citric acid cycle
The oxygen consumed during cellular respiration is involved directly in which process or event?
the citric acid cycle
the oxidation of pyruvate to acetyl CoA
accepting electrons at the end of the electron transport chain
glycolysis
During aerobic respiration, electrons travel downhill in which sequence
food → citric acid cycle → ATP → NAD+
food → NADH → electron transport chain → oxygen
glucose → pyruvate → ATP → oxygen
glucose → ATP → electron transport chain → NADH
In prokaryotes, the respiratory electron transport chain is located
in the cytoplasm.
in the plasma membrane.
in the mitochondrial outer membrane.
in the mitochondrial inner membrane.
In a plant cell, where are the ATP synthase complexes located?
plasma membrane only
thylakoid membrane only
inner mitochondrial membrane only
thylakoid membrane and inner mitochondrial membrane
A plant has a unique photosynthetic pigment. The leaves of this plant appear to be reddish yellow. What wavelengths of visible light are being absorbed by this pigment?
red and yellow
blue and violet
green and yellow
blue, green, and red
Starting with one molecule of glucose, the energy-containing products of glycolysis are
6 CO2, 2 pyruvate, and 2 ATP.
2 NAD+, 2 pyruvate, and 2 ATP.
2 NADH, 2 pyruvate, and 2 ATP.
2 FADH2, 2 pyruvate, and 4 ATP.
A molecule that is phosphorylated
has an increased chemical potential energy; it is primed to do cellular work.
has been oxidized as a result of a redox reaction involving the gain of an inorganic phosphate.
has a decreased chemical reactivity; it is less likely to provide energy for cellular work.
has been reduced as a result of a redox reaction involving the loss of an inorganic phosphate.
Which of the following are directly associated with photosystem I?
harvesting of light energy by ATP
generation of molecular oxygen
extraction of hydrogen electrons from the splitting of water
receiving electrons from the thylakoid membrane electron transport chain
Which of the following events occurs in the light reactions of photosynthesis?
NADP is produced.
NADPH is reduced to NADP+.
Carbon dioxide is incorporated into PGA.
Light is absorbed and funneled to reaction-center chlorophyll a.
In addition to ATP, what are the end products of glycolysis?
CO2 and H2O
CO2 and pyruvate
NADH and pyruvate
CO2 and NADH
Where are the proteins of the electron transport chain located?
cytosol
mitochondrial outer membrane
mitochondrial inner membrane
mitochondrial intermembrane space
During aerobic respiration, H2O is formed. Where does the oxygen atom for the formation of the water come from?
glucose (C6H12O6)
pyruvate (C3H3O3-)
carbon dioxide (CO2)
molecular oxygen (O2)
Which of the following are products of the light reactions of photosynthesis that are utilized in the Calvin cycle?
H2O and O2
ATP and NADPH
CO2 and glucose
ADP, ℗i, and NADP+
