Photosynthesis Significance and Key Terms
23 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the primary function of guard cells in plants?

  • To perform photosynthesis
  • To synthesize proteins
  • To regulate water transport
  • To control the opening of stomata (correct)

    • Where does the light-independent reaction of photosynthesis occur?

  • Stroma (correct)
  • Thylakoid membrane
  • Thylakoid space
  • Grana

    • What is the consequence of the redox process in photosynthesis?

  • Electrons are transferred from carbon dioxide to water
  • Hydrogen ions are transferred from water to carbon dioxide (correct)
  • Hydrogen ions are transferred from carbon dioxide to water
  • Electrons are transferred from water to carbon dioxide

    • What is the primary function of chlorophyll b?

    <p>To act as an accessory pigment</p> Signup and view all the answers

    What is the fate of the energy absorbed by photosynthetic pigments?

    <p>It has three possible fates: conversion to heat, resonance energy transfer, or electron transfer</p> Signup and view all the answers

    What is the function of NADP+ in cellular reactions?

    <p>To pick up energy in the form of two-energy electrons plus a proton</p> Signup and view all the answers

    What is the role of light energy in the synthesis of ATP and NADPH?

    <p>It excites an electron and starts the electron transport chain</p> Signup and view all the answers

    What is the purpose of the proton gradient in the thylakoid?

    <p>To drive ATP synthase to generate ATP</p> Signup and view all the answers

    What is the result of photolysis?

    <p>The formation of ½ O2 and 2H+</p> Signup and view all the answers

    Which photosystem is involved in cyclic photophosphorylation?

    <p>Only PSI</p> Signup and view all the answers

    What is the role of the oxygen evolving complex?

    <p>To catalyze the splitting of two water molecules</p> Signup and view all the answers

    What is the difference between non-cyclic and cyclic photophosphorylation?

    <p>The production of NADPH</p> Signup and view all the answers

    What is the significance of photosynthesis mentioned in the text?

    <p>Producing food and fuel</p> Signup and view all the answers

    Which term refers to an organism that can produce its own food?

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

    What is the key biological process that harvests energy from the sun?

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

    What does the epidermis of a plant primarily prevent?

    <p>Loss of water through transpiration</p> Signup and view all the answers

    Which process is responsible for the existence of multicellular organisms?

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

    What is the main function of the splitting of water molecules (photolysis) in photosynthesis?

    <p>Production of oxygen</p> Signup and view all the answers

    What is the consequence of low carbon dioxide levels in photosynthesis?

    <p>RuBP accumulation</p> Signup and view all the answers

    How does bright light affect photosynthesis?

    <p>Increases the production of ATP, NADPH, and O2</p> Signup and view all the answers

    What is the consequence of the prevention of photorespiration in plants?

    <p>Improved CO2 uptake</p> Signup and view all the answers

    How does temperature affect enzyme-controlled reactions in photosynthesis?

    <p>Increases enzyme activity</p> Signup and view all the answers

    What happens to GP and TP production under dim light conditions in photosynthesis?

    <p>GP increases but does not convert to TP</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser