Download File

Cell Energy
Practice Questions (Honors)
Name: ________
1. The process by which they obtain energy
classifies plants as
Date: _________
6. During photosynthesis, energized photosystems
embedded in the thylakoid membranes of
chloroplasts produce which of the following?
A) photoheterotrophs
B) chemoheterotrophs
A) ADP and H 2O
B) H 2O and ATP
C) chemoautotrophs
C) ATP and NAD +
D) Sugar and O 2
D) poikilotherms
E) ATP and NADPH
E) photoautotrophs
2. Organisms generally referred to as plants are
NOT
A) autotrophic
B) parasitic
C) holotrophic
D) heterotrophic
7. In C 4 plants, the carbon needed in the dark
reaction is provided from within the plant by the
oxidation of
A) acetic acid
B) malate
C) PEP
D) carbon dioxide
E) oxaloacetic acid
E) holophytic
3. The proton gradient created across the
thylakoid membrane depends greatly on which of
the following as its source of power?
8. The dark reaction is part of
A) cyclic phosphorylation
B) noncyclic photophosphorylation
A) Oxygen
B) NADPH
C) oxidative phosphorylation
C) Light
D) ATP
D) both a and b
E) CO 2
E) none of the above
4. C4 plants have a unique leaf anatomy because
they consist of two photosynthetic cells called
9. Cyclic photophosphorylation activates
A) neither PS I nor PS II
A) stem cells and bundle-sheath cells
B) PS I then PS II
B) mesophyll cells and guard cells
C) PS II only
C) phloem and xylem
D) PS II then PS I
D) vascular cells and plasmodesmata
E) PS I only
E) bundle-sheath cells and mesophyll cells
5. Light absorbed by chlorophyll drives a transfer
of electrons and hydrogen from water to an
acceptor called
A)
NADP +
C) CO 2
B)
10. Noncyclic photophosphorylation in
photosynthesis activates
NAD+
A) PS II only
B) PS I then PS II
C) PS I and PS II simultaneously
D) O2
D) PS II then PS I
E) ADP
E) PS I only
Page 1
Ms. Kavner
Cell Energy
11. Chemiosmosis in photosynthesis occurs
14. Base your answer to the following question on
the following diagram.
A) within the stroma only
B) across the chloroplast membrane
C) across the plasma membrane
D) across the thylakoid membrane
E) within the grana only
12. Photolysis in photosynthesis
A) synthesizes water
B) synthesizes oxygen gas
C) splits light with magnesium
The action spectrum of plant A should peak at
D) splits water
A) blue
B) yellow
E) splits oxygen gas
C) green
D) violet
13. Base your answer to the following question on
the diagram below.
E) red
15. The net amount of ATP produced in
photosynthesis is
A) 0 ATP
B) 36 ATP
C) 38 ATP
D) 2 ATP
E) 34 ATP
16. Cyclic photophosphorylation takes place during
A) carbon fixation
B) the light reactions
C) photolysis
Photosynthesis in both C 3 and C 4 plants occurs
in
A) B only
B) B and C only
C) C only
D) A only
E) A, B and C
D) anaerobic respiration
E) aerobic respiration
17. How are cellular respiration and photosynthesis
related in plants?
A) Both respiration and photosynthesis use
the same starting materials.
B) They occur in the same organelles.
C) They are not related.
D) The products of photosynthesis are the
starting materials for respiration, and
vice versa.
E) Both respiration and photosynthesis have
the same product.
Page 2
Ms. Kavner
Cell Energy
18. What distinguishes C3 plants from C4 plants?
A) Only C4 plants are capable of
photosynthesis.
22. Which is the main photosynthetic tissue of
plants?
A) Cuticle
B) Stem
B) There are no differences between the two.
C) Xylem
D) mesophyll
C) They are members of different phylum.
E) Pericycle
D) C3 plants are found only in dry, hot
environments, while C4 plants are found in
all environments.
23. Which is true of photosynthesis?
A) O2 is taken in by the cells
B) CO 2 and H 2 O are taken in by the cells
E) C4 plants have two types of
photosynthetic tissue, while C3 plants
have only one type.
C) Glucose is broken down
D) This life process takes place in the cells of
each organism
19. CAM plants use a photosynthetic adaptation to
account for what type of conditions?
A) Wet, cold environment
B) Wet, hot environment
C) Dry, hot environment
E) This process may occur in a dark
environment
24. Chlorophyll absorbs which of the following
wavelengths of light least efficiently?
D) Cold, windy environment
E) Dry, cold environment
20. Which of the following are reactants in
photosynthesis?
A) Nitrogen
B) Glucose
B) Krebs Cycle
C) Calvin Cycle
D) Light dependent reactions of
photosynthesis
21. The process of fixing carbon dioxide into
carbohydrates occurs in the
D) carbon photophosphorylation
D) Orange
A) Glycolysis
E) Carbon dioxide and water
C) light independent process
C) Green
25. The process in which a reaction with carbon
dioxide leads to the formation of a
carbohydrate is
D) Oxygen
B) glycolysis
B) Violet
E) Blue
C) Carbon dioxide and glucose
A) light dependent process
A) Red
E) Oxidative phosphorylation
26. Which of the following describes the portion
of inner mitochondrial membrane permeable to
only H + ?
A) FADH 2 gradient
E) synthesis of ATP
B) ATP synthase channel
C) Ubiquinone of the electron transport chain
D) Cytochrome of the electron transport
chain
E) NADH channel
Page 3
Ms. Kavner
Cell Energy
27. An organism cannot survive without catabolic
pathways because
A) the excess free energy causes instability
30. Base your answer to the following question on
your knowledge of aerobic respiration of one
molecule of glucose.
B) glucose would be rapidly broken down into
carbon dioxide and water
How much ATP is produced by substrate-level
phosphorylation?
C) proteins would never be formed from amino
acids
A) 4 ATP
B) 6 ATP
C) 8 ATP
D) 0 ATP
D) spontaneous chemical reactions would not
occur
E) 2 ATP
E) energy would never be released from
complex molecules
31. The process of aerobic respiration
A) only occurs right after food consumption
B) occurs many times simultaneously
28. The H+ gradient established on the opposite
sides of the mitochondrial matrix is
C) only occurs during the day
D) involves gas exchange between cells
A) directly responsible for lowing the pH
within the mitochondria
E) completes one cycle before metabolizing
another glucose molecule
B) responsible for the reduction of NAD
32. Which of the following does NOT occur in
glycolysis?
C) the direct energy source driving the
synthesis of ATP during oxidative
phosphorylation
A) Phosphorylation
D) responsible for establishing the Na-K
balance across the membrane
B) Oxidation
E) necessary for the initiation of the Kreb's
cycle
D) Enzyme-catalyzed catabolism
29. The presence of oxygen within a eukaryotic
cell, the two pyruvate molecules produced by
glycolysis
C) ATP consumption
E) Catabolism of pyruvate
33. In anaerobic respiration, ATP is formed
through
A) hydrolysis
A) travel to the mitochondrion to take part
in the Kreb's cycle
B) enzyme-deficient anabolism
C) substrate-level phosphorylation
B) enter the electron transport chain
D) chemiosmosis
C) provide a source of energy for the creation
of ATP through chemiosmosis
E) oxidative phosphorylation
34. Glycolysis occurs in the
D) phosphorylate to form ATP for cell
processes
E) remain in the cytosol to drive the synthesis
of ATP in oxidative phosphorylation
Page 4
A) cytoplasm
B) grana
C) mitochondria
D) both a and b
E) a, b and c
Ms. Kavner
Cell Energy
35. What is true of aerobic respiration but NOT of
anaerobic respiration?
A) Reduction-oxidation reactions occur.
B) Glycolysis is the primary process.
C) 2 ATP are required for activation.
D) Proteins are metabolized.
E) A chemiosmotic gradient is established.
36. Base your answer to the following question on the diagram below.
The molecule indicated by X is
A) ATP
B) O 2
C) CO 2
37. Which of the following molecules is NOT an
electron donor?
D) H 2O
E) PGAL
38. The chemiosmotic gradient in aerobic
respiration drives the process(es) of
A) ATP
B) FADH 2
A) TCA cycle
C) H 2O
D) NADH 2
B) carbon fixation
E) O 2
C) electron transport chain
D) ATP synthesis
E) photophosphorylation
Page 5
Ms. Kavner
Cell Energy
39. In aerobic respiration, the final electron
acceptor is
44. Which of the following is a common feature of
both aerobic and anaerobic respiration?
A) carbon dioxide
B) NADH 2
A) Fermentation
C) ATP
D) water
B) Cytochromes
E) oxygen
C) Krebs cycle
D) Glycolysis
40. The molecule that enters the mitochondria in
order to begin the Krebs Cycle is
E) Electron transport chain
45. The cytoplasm is the site of which process?
A) acetyl CoA
B) phosphofructokinase
A) Oxidative phosphorylation
C) acetic acid
B) The aerobic phase of metabolism
D) pyruvate
C) The Kreb's cycle
E) glucose
D) The citric acid cycle
E) Glycolysis
41. The Kreb's cycle occurs in the
46. The citric acid cycle occurs in which organelle?
A) Golgi apparatus
B) ribosome
A) Cytoplasm
C) mitochondrial matrix
B) Ribosome
D) mitochondrial cristae
C) Endoplasmic reticulum
E) cytosol
D) Mitochondria
42. Where is the most ATP made during aerobic
cellular respiration?
A) Electron transport chain
E) Golgi complex
47. During respiration, the net energy gain during
the glycolysis phase is
B) Golgi apparatus
A) 2 ATP
B) 16 ATP
C) Ribosomes
C) 8 ATP
D) 4 ATP
D) Cytoplasm
E) 34 ATP
E) Thylakoids
43. The production of ATP during electron
transport is called
48. During cellular respiration, most ATP molecules
are generated via
A) the Kreb's cycle and glycolysis
A) oxidative phosphorylation
B) fermentation and the electron transport
chain
B) dephosphorylation
C) fermentation
C) substrate phosphorylation and
fermentation
D) substrate phosphorylation
D) the Kreb's cycle and the electron
transport chain
E) double phosphorylation
E) glycolysis and the electron transport chain
Page 6
Ms. Kavner
Cell Energy
49. A proton gradient is generated across the inner 53. The effect of yeast in bread dough rising is
mitochondrial membrane during (the)
caused by
A) glycolysis
B) electron transport chain
A) ethanol and CO2 production in yeast
aerobic respiration
C) substate phosphorylation
B) yeast apoptosis
D) Kreb's cycle
C) lactic acid production in yeast anaerobic
respiration
E) anaerobic fermentation
D) CO 2 production in yeast anaerobic
respiration
50. Which process produces ATP and lactic acid?
A) Electron Transport Chain
E) ethanol production in yeast anaerobic
respiration
B) Chemiosmosis
C) Glycolysis
54. Which of the following cellular energy
pathways probably occurred first
evolutionarily?
D) The Krebs Cycle
E) Fermentation
51. In the absence of atmospheric oxygen, lactic
acid may be found in all of the following
EXCEPT
A) Kreb's cycle
B) Glycolysis
C) Calvin cycle
A) E. coli
D) Electron transport chain
B) yeast
E) Photolysis
C) cells in the human bicep
55. One product of anaerobic plant metabolism is
D) cells in the human heart
E) none of the above
52. Which of the following processes utilizes ATP?
A) ethyl alcohol
B) nitrogen
C) pyruvic acid
D) lactic acid
E) phosphorus
A) Fermentation
B) Photosynthesis
C) Dehydration synthesis
D) Glycolysis
E) All of the above
Page 7
Ms. Kavner
Answer Key
Cell Energy SAT2 Practice
1.
E
32.
E
2.
D
33.
C
3.
C
34.
A
4.
E
35.
E
5.
A
36.
B
6.
E
37.
E
7.
B
38.
D
8.
E
39.
E
9.
E
40.
A
10.
D
41.
C
11.
D
42.
A
12.
D
43.
A
13.
D
44.
D
14.
A
45.
E
15.
A
46.
D
16.
B
47.
A
17.
D
48.
D
18.
E
49.
B
19.
C
50.
E
20.
E
51.
D
21.
C
52.
E
22.
D
53.
D
23.
B
54.
B
24.
C
55.
A
25.
C
26.
B
27.
E
28.
C
29.
A
30.
A
31.
B
Page 8
Ms. Kavner