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Pigments of Photosynthesis quiz #3 Flashcards

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Pigments of Photosynthesis quiz #3
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  • How do accessory pigments contribute to photosynthesis?
    Accessory pigments, such as chlorophyll b and carotenoids, absorb additional wavelengths of light, broadening the spectrum of light that can be used for photosynthesis.
  • What is the main difference between chlorophyll a and chlorophyll b?
    Chlorophyll a is the main photosynthetic pigment, while chlorophyll b is an accessory pigment that absorbs different wavelengths and reflects mainly yellow and green light.
  • What is an absorption spectrum in the context of photosynthesis?
    An absorption spectrum is a graph showing how much light is absorbed by pigments at different wavelengths.
  • Where are photosynthetic pigments located within plant cells?
    Photosynthetic pigments are located within the thylakoid membranes of chloroplasts.
  • What are the two main components of a photosystem?
    The two main components of a photosystem are the light harvesting complexes and the reaction center.
  • What is found at the reaction center of a photosystem?
    The reaction center contains chlorophyll a molecules and a primary electron acceptor.
  • What happens to wavelengths of light that are not absorbed by pigments?
    Wavelengths of light that are not absorbed are reflected, and these are the colors we see.
  • What is the significance of having multiple types of pigments in chloroplasts?
    Multiple pigments allow plants to absorb a wider range of light wavelengths, maximizing photosynthetic efficiency.
  • What is the main function of photosystems in photosynthesis?
    Photosystems facilitate the absorption of light and the transfer of energy to drive the light reactions of photosynthesis.
  • Why do plants have two different photosystems, and what is their general role?
    Plants have two photosystems to efficiently capture light energy and drive the light reactions of photosynthesis, each playing a specific role in the process.
  • What role do pigments play in the process of photosynthesis?
    Pigments absorb specific wavelengths of visible light, allowing plants to harness light energy needed to power photosynthesis.
  • What is the role of chlorophyll in photosynthesis?
    Chlorophyll, especially chlorophyll a, is the main pigment that absorbs light energy, which is then used to drive the reactions of photosynthesis.
  • Describe the function of chlorophyll in photosynthesis.
    Chlorophyll functions by absorbing light energy and converting it into chemical energy during photosynthesis.
  • What is chlorophyll and what is its role in photosynthesis?
    Chlorophyll is a pigment found in chloroplasts that absorbs light energy, enabling the process of photosynthesis.
  • How does chlorophyll contribute to photosynthesis?
    Chlorophyll absorbs light, primarily in the blue and red wavelengths, and uses this energy to initiate the chemical reactions of photosynthesis.
  • What is the catalyst for photosynthesis?
    Chlorophyll acts as the catalyst by absorbing light energy and facilitating the conversion of light energy into chemical energy.
  • What is the role of accessory pigments in photosynthesis?
    Accessory pigments, such as chlorophyll b and carotenoids, absorb additional wavelengths of light, broadening the spectrum of light that can be used for photosynthesis.
  • How do accessory pigments enhance photosynthesis?
    Accessory pigments capture light energy from wavelengths not absorbed by chlorophyll a, increasing the efficiency of light absorption.
  • Which molecule absorbs sunlight for photosynthesis?
    Chlorophyll, especially chlorophyll a, is the primary molecule that absorbs sunlight for photosynthesis.
  • Which molecule absorbs the energy of a photon in photosynthesis?
    Chlorophyll a absorbs the energy of a photon in photosynthesis.
  • Which best explains the role of plant pigments in photosynthesis?
    Plant pigments absorb and reflect different wavelengths of light, enabling plants to capture light energy for photosynthesis and influencing the colors we see.
  • Which color of light will maximize the rate of photosynthesis?
    Red and blue wavelengths of light maximize the rate of photosynthesis because they are most efficiently absorbed by chlorophyll.
  • Why are plant leaves green?
    Plant leaves appear green because chlorophyll reflects green wavelengths of light, which are then perceived by our eyes.
  • Why does the leaf of a plant look green?
    Leaves look green because chlorophyll reflects green light while absorbing other wavelengths for photosynthesis.
  • What is the function of chlorophyll in photosynthesis?
    The function of chlorophyll is to absorb light energy and convert it into chemical energy during photosynthesis.
  • How does chlorophyll function in photosynthesis?
    Chlorophyll functions by absorbing photons of light and transferring the energy to drive the chemical reactions of photosynthesis.
  • What are photosystems and where are they located?
    Photosystems are complexes of pigments, proteins, and other molecules found in the thylakoid membranes of chloroplasts, essential for light absorption in photosynthesis.
  • What is the main photosynthetic pigment found in chloroplasts?
    Chlorophyll a is the main photosynthetic pigment found in chloroplasts.
  • How do different pigments affect the color of plants?
    Different pigments absorb and reflect specific wavelengths of light, and the reflected wavelengths determine the color we perceive in plants.
  • What is an absorption spectrum and what does it show in photosynthesis?
    An absorption spectrum is a graph showing how much light is absorbed by pigment molecules at different wavelengths, illustrating which wavelengths are used in photosynthesis.