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Metabolic Biochemistry

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  • How many net ATP molecules are gained from glycolysis?
    2
    4
    1
    3
  • Of the following statements about fermentation, which one is TRUE?
    It completes glycolysis
    It completes pyruvate oxidation
    It completes oxygen reduction
    It completes the citric acid cycle
  • What color of visible light does chlorophyll reflect?
    Red
    Green
    Violet
    Blue
  • When games and competitions are held at high altitudes, athletes must specially train to postpone their cells from switching to
    photosynthesis
    hematopoiesis
    aerobic cellular respiration
    anaerobic cellular respiration
  • Which of the following is a reactant of photosynthesis and a product of cellular respiration?
    glucose
    oxygen
    carbon dioxide
    light energy
  • Which of the following represents the oxidized form of flavin adenine dinucleotide during cellular respiration?
    FADH + H+
    FAD+
    FADH2
    FAD
  • Why must pyruvate be reduced during fermentation?
    To create more ATP
    To perform pyruvate oxidation
    To create FADH for the citric acid cycle
    To regenerate NAD+ for glycolysis
  • Which of the following is NOT produced during the electron transport chain?
    ATP
    water
    carbon dioxide
    NAD+
  • What is the net gain of ATP molecules that are produced from one molecule of glucose during glycolysis?
    Four
    One
    Three
    Two
  • When chlorophyll absorbs light energy, this causes its electrons to move...
    to a negative charge
    to a neutral charge
    to an excited state
    to another chlorophyll molecule
  • What is the electron carrier in glycolysis that becomes reduced?
    NAD+
    ATP
    ADP
    NADH
  • In order to produce the most ATP, an organism needs to perform
    photosynthesis
    aerobic cellular respiration
    hematopoiesis
    dehydration synthesis
  • What type of respiration needs oxygen?
    Anaerobic
    Alcohol fermentation
    Lactic acid fermentation
    Aerobic
  • Which of the following stages/processes releases carbon dioxide?
    Glycolysis
    Oxygen reduction
    The electron transport chain
    Alcoholic fermentation
  • Energy is released from ATP when the bond is broken between
    two phosphate groups
    ribose and deoxyribose
    ribose and a phosphate group
    adenine and ribose
  • During glycolysis, glucose is broken down into two _____.
    Electrons
    Ethanol molecules
    Pyruvate molecules
    Lactic acid molecules
  • What is the relationship between NADP+ and NADPH in the light reaction?
    NADPH is reduced to NADP+
    NADPH is oxidized to NADP+
    NADP+ is reduced to NADPH
    NADP+ is broken into NADP + H+
  • Electrons are excited by energy absorbed by
    oxygen
    water
    chlorophyll and accessory pigments
    proteins in the reaction center
  • What follows glycolysis in cellular respiration?
    The Electron Transport Chain
    None of these answers
    The Citric Acid Cycle
    The Calvin Cycle
  • Electrons are excited in what molecule of the reaction center?
    Primary electron acceptor
    Accessory pigments
    Chlorophyll a
    Electron transport chain
  • What product from the Krebs cycle is waste for your body?
    FADH
    NAD+
    carbon dioxide
    ATP
  • Which of the following are produced in the dark reactions?
    ADP, NADP+, G3P, Carbon dioxide
    ADP, NADP+, G3P, Oxygen
    ATP, NADPH, Glucose, Oxygen
    ADP, NADP+, G3P
  • Which of the following produces ethanol?
    Photosynthesis
    Aerobic respiration
    Alcohol fermentation
    Lactic acid fermentation
  • Which step of cellular respiration provides the greatest number of ATP molecules?
    Glycolysis
    The Electron Transport Chain
    The Citric Acid Cycle
    Pyruvate Oxidation
  • Which is true of the dark reactions?
    They do not directly use sunlight energy
    They create products that are light-sensitive
    They use sunlight
    They occur only at night