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Plant Nutrition IG1A

Quiz by edkasa chemistry

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16 questions
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  • Q1
    Which of these is the correctly balanced equation for photosynthesis?
    6CO2 + 6H2O → C6H12O6 + 6O2
    CO2 + H2O → CH2O + O2
    C6H12O6 + 6O2 → 6CO2 + 6H2O
    120s
  • Q2
    Which mineral ions are needed for chlorophyll in plants?
    Calcium
    Magnesium
    Copper
    120s
  • Q3
    Why do plants need nitrate ions?
    For making amino acids
    For denitrification as part of the nitrogen cycle
    To regulate the opening and closing of the stomata
    120s
  • Q4
    n a greenhouse, tomato plants grow faster if the temperature is increased. What does this show?
    Light intensity must be a limiting factor
    Temperature must be a limiting factor
    Carbon dioxide concentration must be a limiting factor
    120s
  • Q5
    In an investigation into photosynthesis in a water plant, why are the number of bubbles of gas it produces counted?
    To see how fast the plant produced starch
    To see how fast the plant produced oxygen
    To see how fast the plant used up carbon dioxide
    120s
  • Q6
    Which tissue in the leaf absorbs the most light for photosynthesis?
    Spongy mesophyll
    Upper epidermis
    Palisade mesophyll
    120s
  • Q7
    Which tissue in the leaf is adapted for efficient gas exchange?
    Upper epidermis
    Palisade mesophyll
    Spongy mesophyll
    120s
  • Q8
    Why do leaves have a waxy cuticle?
    To protect the leaf without blocking out light
    To keep oxygen in the leaf
    To allow water vapour to diffuse out of the leaf
    120s
  • Q9
    Which tissue transports water and minerals from the root to the leaves?
    Xylem
    Veins
    Phloem
    120s
  • Q10
    Which useful energy transfer or conversion happens overall in photosynthesis?
    Light → heat
    Light → chemical
    Chemical → light
    120s
  • Q11
    Something present in the environment in such short supply that it restricts life processes
    limiting factors
    role of chlorophyll
    photosynthesis
    120s
  • Q12
    Describe the effect of temperature on the rate of photosynthesis
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    300s
  • Q13
    Explain how two features of leaves, are adaptations for efficient photosynthesis.
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    300s
  • Q14
    Name two substances that are translocated from a source to a sink.
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    300s
  • Q15
    What are the deficiencies of magnesium in plant?
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    300s

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