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Photosynthesis and Respiration

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Use these flashcards to review concepts of photosynthesis and respiration in preparing for the Standards of Learning exam.

During respiration, what is glucose used for?To produce ATP in order to power cellular processes.
What is the primary light-gathering pigment in plants?chlorophyll
What do you call the plant colorings, other than chlorophyll, that help the cells to trap light?accessory pigments (ex. Xanthophyll, Carotenoids)
In what part of photosynthesis is water split and oxygen released?The light reaction.
What is the energy from ATP and NADPH used for in the Calvin Cycle?To fix carbon dioxide to glucose
What environmental cycle involves photosynthesis and respiration as a major process?The carbon-hydrogen-oxygen cycle
What purpose does oxygen serve in respiration?It is the final electron acceptor on the electron transport chain.
What is the maximum number of ATP generated in aerobic respiration?36
What is the source of oxygen released by plants in photosynthesis?The splitting of a molecule of water.
In what cellular organelle does respiration occur?mitochondria
In what cellular organelle does photosynthesis occur?chloroplast
In what cellular organelle does glycolysis occur?cytoplasm
Aside from oxygen, what else is produced by the light reaction of photosynthesis?ATP and NADPH
What does the word photosynthesis mean?using light to make something new
What are the end products of photosynthesis?oxygen and sugar
What are the reactants for photosynthesis?carbon dioxide and water
Where is the energy used in photosynthesis obtained?from sunlight
In which part of the leaf does photosynthesis primarily occur?Chloroplasts, found mostly in the mesophyll (palisade layer).
What type of cell controls the size of a stomate in a leaf?the guard cells
What is the function of chlorophyll?To trap sunlight
What part of the visible spectrum is not absorbed by chlorophyll?green wavelengths
What are the tiny disk-like structures in chloroplasts that contain chlorophyll?Thylakoids
What three substances must be supplied to the Calvin Cycle?ATP, NADPH + H+, Carbon Dioxide
What is the main source of energy for cells?ATP
How many ATP are produced by glycolysis?2
What is the step of aerobic respiration that follows the Krebs cycle?Electron Transport Chain
What is another name for the Krebs cycle?Citric Acid Cycle
What are the raw materials for cellular respiration?oxygen and glucose
The type of respiration that causes muscle soreness is called what?lactic acid fermentation
How many ATP are produced by fermentation?none
In what step of respiration is glucose split into PGAL and then pyruvate??glycolysis
When glucose is broken down in an environment that lacks oxygen, what process is occurring?aerobic respiration
Why would human muscle cells contain many more mitochondria than skin cells?muscles typically need more energy than skin cells and mitochondria are the organelles where energy is produced.

Mrs. Ferraro
Hammond HS
Columbia, MD
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