Questions and Answers
Plants, algae, and some bacteria capture ______
solar energy
The chemical reactions driven by solar energy require _____
carbon dioxide and water
During photosynthesis, plants make ____
carbohydrates
Where does the production of carbohydrates in a plant take place?
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Each-rich molecules that organisms use to carry out daily activities are ______
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The process by which a plant uses sunlight to make sugar molecules is called ______
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During which stage of photosynthesis does water split into hydrogen and oxygen?
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Organisms that can make their own food are ____
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The process by which most producers make food ____
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Photosynthesis occurs in the _____
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The _____ begin when sunlight is trapped by ____
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This energy is used to split ___ into hydrogen and oxygen
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The _____ is released from the cell
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The ___ begin when the hydrogen combines with carbon dioxide
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_____ is produced, which supplies the cell with energy
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What is the role of chlorophyll in photosynthesis?
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What three things do plants need for photosynthesis to occur?
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Where does a plant get carbon dioxide it needs for photosynthesis?
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Do you think animal cells are able to produce glucose through photosynthesis?
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What is chlorophyll?
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Write the chemical equation for the overall process of photosynthesis.
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How do the meanings of 'photo-' and 'synthesis' tell you what happens during photosynthesis?
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How are the meanings of prefix 'chloro-' and suffix '-phyll' related to chlorophyll?
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What is photosynthesis?
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What are chloroplasts and where are they found?
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What are the two main functions of chloroplasts?
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Why do most leaves appear green?
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What is the primary pigment found in the chloroplast?
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Where does the water come from?
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Where does the water enter the plant?
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Name 3 sources of CO2.
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What type of energy does the plant use to convert CO2 and H2O into sugar?
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What is produced in photosynthesis?
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What is the glucose used for?
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What is the oxygen used for?
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Describe, using scientific terms, how plants turn sunlight into energy.
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Study Notes
Overview of Photosynthesis
- Photosynthesis is the process where plants, algae, and some bacteria use sunlight to synthesize sugars.
- Key reactants include carbon dioxide (CO2) and water (H2O).
- Carbohydrates, primarily glucose, are the main products of photosynthesis.
Process of Photosynthesis
- Photosynthesis occurs in chloroplasts, the organelles located in plant leaves.
- The first stage involves light reactions where sunlight is absorbed by chlorophyll, splitting water into hydrogen and oxygen.
- Oxygen is released as a byproduct during the light reactions.
Stages of Photosynthesis
- Dark reactions (Calvin Cycle) utilize hydrogen and carbon dioxide to create glucose, the primary energy source for the plant.
- The overall reaction can be summarized with the equation: 6CO2 + 6H2O → C6H12O6 + 6O2.
Chlorophyll’s Role
- Chlorophyll is crucial for absorbing light and gives leaves their green color.
- The prefix "chloro-" means green, indicating its connection to the photosynthetic process.
Environmental Requirements
- For photosynthesis, plants require sunlight, carbon dioxide (obtained from air through leaves), and water (absorbed through roots).
- Common sources of CO2 include air, factories, and vehicles.
Functions and Importance
- Glucose produced during photosynthesis is used by plants for energy, growth, or stored for later use.
- Oxygen produced is essential for respiration in animals and humans.
Connection to Energy
- Sunlight energy is converted into chemical energy in the form of glucose through a combination of light and dark reactions.
- Photosynthesis allows plants to function as producers within ecosystems, supporting life by providing energy.
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Test your knowledge on photosynthesis with these flashcards! Explore key terms and definitions crucial for understanding how plants, algae, and certain bacteria utilize solar energy to produce carbohydrates. Perfect for students studying biology or environmental science.