Photosynthesis and Cellular Respiration Flashcards

Grade 7 · Science · Flashcards

Key vocabulary and equations for photosynthesis and cellular respiration.

Flashcards

Photosynthesis: Process plants use to convert light energy, CO₂, and H₂O into glucose and oxygen.
Cellular respiration: Process that breaks down glucose using oxygen to release ATP, CO₂, and water.
Chloroplast: Organelle in plant cells where photosynthesis occurs; contains chlorophyll.
Mitochondria: Organelle where cellular respiration produces most of the cell's ATP.
Chlorophyll: Green pigment that captures light energy for photosynthesis.
ATP: Adenosine triphosphate; the cell's direct energy currency.
Glucose: Simple sugar (C₆H₁₂O₆) produced by photosynthesis; fuel for cellular respiration.
Stomata: Tiny pores on plant leaves that allow CO₂ in and O₂ out during photosynthesis.
Carbon dioxide (CO₂): Reactant for photosynthesis; waste product of cellular respiration.
Oxygen (O₂): Byproduct of photosynthesis; reactant in cellular respiration.
Starch: Storage form of glucose in plants, made by linking many glucose molecules together.
Autotroph: Organism that makes its own food via photosynthesis (e.g., plants, algae).
Heterotroph: Organism that must consume other organisms to obtain energy (e.g., animals, fungi).
Light-dependent reactions: Stage of photosynthesis that captures light energy and splits water molecules, releasing oxygen.
Calvin cycle: Stage of photosynthesis that uses captured energy to build glucose from CO₂.