WSU BIO 106 Exam 2 QUESTION AND
VERIFIED CORRECT ANSWERS
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Cellular Respiration: Glucose oxidized (lost H atoms) and oxygen reduced (gained H atoms) as
oxygen is consumed to produce carbon dioxide
Summarize the relationship between the metabolic reactions of photosynthesis and cellular
respiration - CORRECT ANSWER-They're the reverse of eachother
Explain how autotrophs are able to produce their own food - CORRECT ANSWER-Autotrophs:
produce their own food by Photosynthesis:
•A process that captures solar energy
•Transforms solar energy into chemical energy
•Energy ends up stored in a carbohydrate
Describe the components of a chloroplast - CORRECT ANSWER-1. thylakoid: A flattened
membrane sac inside the chloroplast, used to convert light energy into chemical energy.
, 2. grana: A stacked portion of the thylakoid membrane in the chloroplast. Grana function in the
light reactions of photosynthesis, stacks of thylakoids
3. inner membrane: The membrane of the mitochondria that is the site of electron transport
and chemiosmosis., where the electron transport chain occurs, Where the electron transport
chain of cellular respiration occurs
4. outer membrane: forms a boundary between mitochondrion and cytoplasm; helps define the
inner membrane space, smooth membrane in mitochondria
5. intermembrane space: the fluid filled space between the inner and outer mitochondrial
membranes, the region between the inner membrane and the outer membrane of a
mitochondrion or a chloroplast. The main function of the intermembrane space is nucleotide
phosphorylation.
6. stroma: The fluid of the chloroplast surrounding the thylakoid membrane; involved in the
synthesis of organic molecules from carbon dioxide and water.
Compare the roles of oxygen and carbon dioxide in autotrophs and heterotrophs - CORRECT
ANSWER-Heterotrophs release carbon dioxide when they respire, then the carbon dioxide enter
autotrophs through leaves (through the STOMA, small openings where carbon dioxide enters)
and are converted into carbohydrate. CARBOHYDRATE in the form of glucose is is the chief
source of chemical energy for most organisms.
Describe the overall process of photosynthesis - CORRECT ANSWER-Photosynthesis uses the
energy of sunlight to convert water and carbon dioxide into oxygen and high-energy sugars. In
addition to water and carbon dioxide, photosynthesis requires light and chlorophyll, a molecule
in chloroplasts.
Compare energy input and output of the light reaction - CORRECT ANSWER-The input of a light
reaction is the solar energy, and the output is the converted energy into ATP and NADPH.
VERIFIED CORRECT ANSWERS
GRADED A+ [LATEST UPDATE]
100%GUARANTEED PASS
Cellular Respiration: Glucose oxidized (lost H atoms) and oxygen reduced (gained H atoms) as
oxygen is consumed to produce carbon dioxide
Summarize the relationship between the metabolic reactions of photosynthesis and cellular
respiration - CORRECT ANSWER-They're the reverse of eachother
Explain how autotrophs are able to produce their own food - CORRECT ANSWER-Autotrophs:
produce their own food by Photosynthesis:
•A process that captures solar energy
•Transforms solar energy into chemical energy
•Energy ends up stored in a carbohydrate
Describe the components of a chloroplast - CORRECT ANSWER-1. thylakoid: A flattened
membrane sac inside the chloroplast, used to convert light energy into chemical energy.
, 2. grana: A stacked portion of the thylakoid membrane in the chloroplast. Grana function in the
light reactions of photosynthesis, stacks of thylakoids
3. inner membrane: The membrane of the mitochondria that is the site of electron transport
and chemiosmosis., where the electron transport chain occurs, Where the electron transport
chain of cellular respiration occurs
4. outer membrane: forms a boundary between mitochondrion and cytoplasm; helps define the
inner membrane space, smooth membrane in mitochondria
5. intermembrane space: the fluid filled space between the inner and outer mitochondrial
membranes, the region between the inner membrane and the outer membrane of a
mitochondrion or a chloroplast. The main function of the intermembrane space is nucleotide
phosphorylation.
6. stroma: The fluid of the chloroplast surrounding the thylakoid membrane; involved in the
synthesis of organic molecules from carbon dioxide and water.
Compare the roles of oxygen and carbon dioxide in autotrophs and heterotrophs - CORRECT
ANSWER-Heterotrophs release carbon dioxide when they respire, then the carbon dioxide enter
autotrophs through leaves (through the STOMA, small openings where carbon dioxide enters)
and are converted into carbohydrate. CARBOHYDRATE in the form of glucose is is the chief
source of chemical energy for most organisms.
Describe the overall process of photosynthesis - CORRECT ANSWER-Photosynthesis uses the
energy of sunlight to convert water and carbon dioxide into oxygen and high-energy sugars. In
addition to water and carbon dioxide, photosynthesis requires light and chlorophyll, a molecule
in chloroplasts.
Compare energy input and output of the light reaction - CORRECT ANSWER-The input of a light
reaction is the solar energy, and the output is the converted energy into ATP and NADPH.
