Plant Nutrients: Spines and Secondary Metabolites
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Questions and Answers

What is the main stimulus for phototropism?

  • Gravity
  • Light (correct)
  • Touch
  • Chemicals
  • Which type of tropism involves the plant's response to gravity?

  • Chemotropism
  • Phototropism
  • Thigmotropism
  • Gravitropism (correct)
  • What is the role of chlorophyll in plants?

  • Metabolism based on chemistry principles
  • Production of sugars from sunlight (correct)
  • Absorption of water
  • Generation of touch responses
  • Which plant group is known for seed-bearing vascular plants?

    <p>Gymnosperms</p> Signup and view all the answers

    What is the average lifespan of a columbine plant?

    <p>3-4 years</p> Signup and view all the answers

    What makes plants unique among eukaryotic organisms?

    <p>Ability to manufacture their own food</p> Signup and view all the answers

    What is the role of chlorophyll synthesis?

    <p>Magnesium</p> Signup and view all the answers

    Which plant hormone promotes leaf detachment and seed dormancy?

    <p>Abscisic Acid</p> Signup and view all the answers

    What is the function of SPINES in plants?

    <p>Structural defense</p> Signup and view all the answers

    Which element is responsible for cell wall synthesis and root development?

    <p>Calcium</p> Signup and view all the answers

    Which hormone is known for promoting stem elongation and inhibiting lateral bud growth?

    <p>Auxin</p> Signup and view all the answers

    What is the role of plant hormones in response to stress conditions?

    <p>Increasing tolerance to stress</p> Signup and view all the answers

    Where do the light reactions of photosynthesis take place?

    <p>Photosynthetic membranes (thylakoids)</p> Signup and view all the answers

    What is the primary function of the dark reactions in photosynthesis?

    <p>Incorporate CO2 into organic molecules</p> Signup and view all the answers

    Which molecule is NOT involved in the production of oxygen during photosynthesis?

    <p>O2</p> Signup and view all the answers

    What is the main purpose of light absorption in photosynthesis?

    <p>Create ATP and NADPH</p> Signup and view all the answers

    What are the two main end products of the light reactions of photosynthesis?

    <p>ATP and NADPH</p> Signup and view all the answers

    In which organelle do the dark reactions (Calvin Cycle) of photosynthesis occur?

    <p>Chloroplast stroma</p> Signup and view all the answers

    Which plant movement is known as phototropism?

    <p>Curving of the stem tip towards the light</p> Signup and view all the answers

    Which plant hormone promotes cell division or cytokinesis?

    <p>Cytokinin</p> Signup and view all the answers

    What biological process does gibberellins promote in plants?

    <p>Seed germination</p> Signup and view all the answers

    What is the word 'Parthenocarpy' derived from and what does it mean?

    <p>Greek, means 'virgin fruit'</p> Signup and view all the answers

    How are bananas commonly propagated due to their sterile nature?

    <p>By grafting</p> Signup and view all the answers

    What is the process that involves joining the shoot system of one plant to the root system of another plant?

    <p>Grafting</p> Signup and view all the answers

    What is the main function of the seed coat?

    <p>To protect the embryo</p> Signup and view all the answers

    Which part of the seed is responsible for developing into the plant's stem?

    <p>Epicotyl</p> Signup and view all the answers

    What is the function of a radicle in a seed?

    <p>To develop into the root of the plant</p> Signup and view all the answers

    Which type of pollination involves the transfer of pollen within the same flower?

    <p>Self pollination</p> Signup and view all the answers

    What are some agents of pollination mentioned in the text?

    <p>Insects and wind</p> Signup and view all the answers

    Which plant coating is specifically found in most above-ground parts?

    <p>Cutin</p> Signup and view all the answers

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