Unit 5 Test Rebate
- 1.The three-carbon molecule formed by glycolysis is ___.
- A.
Pyruvate
- B.
NADH
- C.
Citric acid
- D.
Carbon dioxide
- 2.
In the diagram to the right, what is structure A?- A.
Folded inner membrane
- B.
Mitochondrial matrix
- C.
Stroma
- D.
Thylakoid membrane
- 3.
In the diagram to the right, what is structure B?
- A.
Folded inner membrane
- B.
Mitochondrial matrix
- C.
Stroma
- D.
Thylakoid membrane
- 4.Which of the following stages occurs in the mitochondrial matrix?
- A.
Krebs cycle
- B.
The Calvin cycle
- C.
Glycolysis
- D.
Oxidative phosphorylation
- 5.Which organelle converts molecules from the food you eat into usable energy?
- A.
Golgi apparatus
- B.
Chloroplast
- C.
Mitochondrion
- D.
Lysosome
- 6.In the electron transport chain, hydrogen ions are pumped across the mitochondrial membrane. What provides the energy to operate the protein pumps?
- A.
Electrons
- B.
ATP
- C.
Oxygen
- D.
Carbon dioxide
- 7.What enzyme is located at the end of the electron transport chain?
- A.
ATP synthase
- B.
Dehydrogenase
- C.
NADPH
- D.
Glycolase
- 8.The electron transport chain produces water and ATP. Where do the hydrogen atoms come from that are used to form water?
- A.
Carbon dioxide
- B.
NADH and FADH2
- C.
The Calvin Cycle
- D.
Oxygen
- 9.Two products of the Krebs cycle are
- A.
Water and carbon dioxide.
- B.
ATP and carbon dioxide.
- C.
ATP and oxygen.
- D.
ADP and water.
- 10.The part of cellular respiration in which glucose is broken down is called
- A.
Photosynthesis.
- B.
Aerobic respiration.
- C.
Electron transport.
- D.
Glycolysis.
- 11.What is the main function of the Krebs cycle?
- A.
Breaking down pyruvate molecules to form molecules of NADH and oxygen
- B.
Forming citric acid to make NADH, water, and carbon dioxide
- C.
Producing molecules that carry high-energy electrons to the electron transport chain
- D.
Bonding coenzyme A to pyruvate
- 12.In the electron transport chain, energy from the Krebs cycle is used to pump hydrogen ions
- A.
Across the inner mitochondrial membrane.
- B.
Through the ATP synthase enzyme in the mitochondrial matrix.
- C.
Along a concentration gradient in the thylakoid.
- D.
Along the thylakoid membrane.
- 13.Which process breaks down sugars to make ATP when oxygen is present?
- A.
Anaerobic respiration
- B.
Cellular respiration
- C.
Glycolysis
- D.
Photosynthesis
- 14.Where does glycolysis take place?
- A.
Cytoplasm
- B.
Mitochondrial matrix
- C.
Mitochondrial inner membrane
- D.
Chloroplast
- 15.Which of the following are end products of glycolysis?
- A.
Two three-carbon molecules, ATP, and NAD+
- B.
Carbon dioxide, water, and ATP
- C.
NAD+, oxygen, and two ATP molecules
- D.
Pyruvate, NADH, and ATP
- 16.
In the diagram to the right, the structure labeled E is the ___.
- A.
Stroma
- B.
Chlorophyll
- C.
Granum
- D.
Thylakoid membranes
- 17.
In the diagram to the right, the structure labeled C is the ___.
- A.
Stroma
- B.
Chlorophyll
- C.
Granum
- D.
Thylakoid membranes
- 18.
In the diagram to the right, the structure labeled D is the ___.
- A.
Stroma
- B.
Chlorophyll
- C.
Granum
- D.
Thylakoid membranes
- 19.The purpose of the light reactions is to___.
- A.
Make ATP and NADPH for use in the Calvin cycle
- B.
To make oxygen
- C.
To split water
- D.
To make glucose
- 20.What are the products of photosynthesis?
- A.
Carbon dioxide and water
- B.
Glucose and oxygen
- C.
Water and glucose
- D.
Carbon dioxide and oxygen
- 21.Which of the following statements best describes the process of photosynthesis?
- A.
Plants use oxygen to make simple sugars.
- B.
Chlorophyll builds sugars in the thylakoid membrane.
- C.
Light breaks down water molecules and releases carbon dioxide.
- D.
Chloroplasts absorb sunlight and store chemical energy.
- 22.The main light-absorbing molecules found in plant leaves are called
- A.
Chloroplasts
- B.
Thylakoids
- C.
Chlorophyll
- D.
Grana
- 23.Which phrase best describes the electron transport chain in photosynthesis?
- A.
A chain of photosynthetic proteins located in the stroma
- B.
A collection of enzymes used to make ADP
- C.
A series of proteins located in the thylakoid membrane
- D.
A group of enzymes that carries energy to the Calvin cycle
- 24.Which of the following takes place in the light-dependent reactions of photosynthesis?
- A.
Sugars are made.
- B.
Energy is captured.
- C.
Chlorophyll is pumped.
- D.
Carbon dioxide is formed.
- 25.Which process breaks down sugars to make ATP when oxygen is NOT present?
- A.
Anaerobic respiration (a.k.a. Fermentation)
- B.
Cellular respiration
- C.
Glycolysis
- D.
Photosynthesis
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