Photosynthesis Flashcards

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Note: We may include questions that have multiple correct answers. It’s useful to remember specific examples to understand these concepts better.

What is photosynthesis?

Photosynthesis is the process by which plants (producers or autotrophs) use carbon dioxide, water, and light energy from the Sun to produce their own food.

Where does photosynthesis take place in a plant?

Photosynthesis takes place in chloroplasts, which are located in the leaves and contain the pigment chlorophyll.

What are the word and balanced symbol equations for photosynthesis?

Word equation:

Carbon dioxide + Water + Light energy → Glucose + Oxygen

Balanced symbol equation:

6CO2 + 6H2O + Light energy → C6H12O6 + 6O2

How do carbon dioxide and water reach the site of photosynthesis?

Carbon dioxide enters the leaf through the stomata, and water is absorbed by the roots via osmosis and transported to the leaf by the xylem.

Why is photosynthesis considered an endothermic reaction?

Photosynthesis requires an input of energy from sunlight and does not release it all back, making it an endothermic reaction.

How are photosynthesis and respiration related?

Photosynthesis and respiration are opposite processes. The reactants of photosynthesis (carbon dioxide and water) are the products of respiration, and the products of photosynthesis (glucose and oxygen) are the reactants of respiration.

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