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Photosynthesis

Photosynthesis - Light and Dark Reactions - ATP

QuestionAnswer
What is the main purpose of photosynthesis? To convert light energy into chemical energy stored in glucose.
Which organelle carries out photosynthesis? The chloroplast.
What pigment captures light energy? Chlorophyll
What are the two stages of photosynthesis? Light-dependent reactions and the Calvin cycle.
What are the inputs of photosynthesis? Carbon dioxide, water, and sunlight.
What are the outputs of photosynthesis? Glucose and oxygen.
Where do light-dependent reactions occur? In the thylakoid membranes of the chloroplast.
What molecule is produced during the Calvin cycle? . Glucose
What gas is released during photosynthesis? Oxygen
Why is photosynthesis important to life on Earth? It provides oxygen and food for living organisms.
What does ATP stand for? Adenosine Triphosphate
What is the role of ATP in cells? It provides energy for cellular processes.
What happens when ATP loses a phosphate group? It becomes ADP and releases energy.
Where is ATP mainly produced? In the mitochondria
What type of energy does ATP store? Chemical energy
How is ATP like a rechargeable battery? It can be recharged by adding a phosphate to ADP.
What process creates ATP from glucose? Cellular respiration.
What are the three parts of an ATP molecule? Adenine, ribose, and three phosphate groups.
Why is ATP considered the energy currency of the cell? It powers nearly all cellular activities.
What enzyme helps regenerate ATP? ATP synthase.
What is the chemical equation for photosynthesis? 6CO₂ + 6H₂O + light → C₆H₁₂O₆ + 6O₂
What role does chlorophyll play? It absorbs light energy for photosynthesis.
What are stomata used for? They allow gas exchange—CO₂ in, O₂ out.
What is the source of oxygen released in photosynthesis? Water molecules split during light-dependent reactions.
What powers the Calvin cycle? ATP and NADPH from the light-dependent reactions.
What is the main product of the Calvin cycle? Glucose
What part of the chloroplast contains chlorophyll? The thylakoid membranes.
What environmental factors affect photosynthesis? Light intensity, temperature, and carbon dioxide levels.
What is carbon fixation? The process of converting CO₂ into organic compounds.
Why do plants appear green? Chlorophyll reflects green light.
What is the main purpose of the light reactions in photosynthesis? To convert light energy into chemical energy in the form of ATP and NADPH.
Where do the light reactions occur? In the thylakoid membranes of the chloroplast.
What pigment captures light energy? Chlorophyll
What molecule is split during the light reactions? Water (H₂O).
What gas is released as a result of water splitting? Oxygen (O₂).
What are the two energy-carrying molecules produced? ATP and NADPH.
What is the role of the electron transport chain in light reactions? It transfers electrons and helps produce ATP.
What is photolysis? The splitting of water molecules using light energy. Commonly called: light-splitting Word Morphology: Photo = light Lys(is) = to break down; to split
What is the role of sunlight in the light reactions? It excites electrons in chlorophyll to start the process.
What happens to the electrons after they are excited by light? They move through the electron transport chain to generate ATP and NADPH.
Alternate names for the: Light-Dependent Reaction Light Reaction Photosynthetic Light Reaction Thylakoid Membrane Reaction Photosystems II and I reactions
Alternate names for the: Light-Independent Reaction Dark Reaction (though they don’t actually require darkness) Calvin Cycle
Created by: kingazcp
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