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Chapter 5 - photosythesis

Quiz by Courtney Simpson

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10 questions
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  • Q1
    In a laboratory experiment four groups of plants were grown in light of varying wavelengths: white light, blue light, red light and green light. The plants that exhibit the poorest growth are those grown in
    green light
    white light
    red light
    blue light
  • Q2
    The light-dependent reactions of photosynthesis
    result in the release of oxygen from carbon dioxide molecules
    occur in the grana of chloroplasts
    release energy in the form of 36 ATP molecules
    produce glucose
  • Q3
    Which of the following is a product of the light-independent reactions of photosynthesis?
    carbon dioxide
  • Q4
    Radioactive oxygen (O-18) is introduced into the environment of an experimental plant. After a short period of exposure to sunlight, the radioactive oxygen is detected in sugars in the leaf cells of the plant. In which molecule was the O-18 most likely introduced to the plant's environment?
    Carbon dioxide
  • Q5
    ATP is important in living cells as it
    is an important structural component of the plasma membrane
    provides a supply of usable energy for the cell
    is required for osmosis
    provides one of the building blocks for lipid synthesis
  • Q6
    The production of ATP
    only occurs in the absence of oxygen
    requires an overall input of energy
    occurs only in the mitochondria of a cell
    is a catabolic reaction
  • Q7
    Which of the following is a catabolic process?
    the synthesis of a polypeptide hormone from amino acids
    conversion of glycogen to glucose
    the production of carbohydrates during photosynthesis
    the formation of a triglyceride from glycerol and fatty acids
  • Q8
    During photosynthesis in chloroplasts, energy is used to split water, forming oxygen and hydrogen ions. The splitting of water occurs
    on the surface of the outer chloroplast membrane during the light-dependent reaction
    on the membrane of the thylakoids during the light-independent reaction
    in the grana during the light-dependent reactions
    in the stroma during the light-independent reaction
  • Q9
    An increase in the atmospheric carbon dioxide levels increases the rate of photosynthesis. The rate of photosynthesis increases because
    the rate of the light-independent reactions on the thylakoid membranes of the chloroplast increase
    the increased carbon dioxide level lowers the pH inside the chloroplasts and increases the rate of enzyme-catalysed reactions
    water loss from the leaf decreases, resulting in the availablity of water for photosynthesis increasing
    the rate of the light-independent reactions in the stroma increases with the increase in carbon dioxide levels
  • Q10
    Which of the following statements about photosynthesis in chloroplasts is correct?
    the light-dependent stage produces ATP for use during the light-independent stage
    the grana are the site of the light-independent stage
    the light-independent stage captures carbon dioxide for use during the light-dependent stage to produce glucose
    chlorophyll found in the stroma traps light for use during the light-dependent stage

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