Photosynthesis and Cellular Respiration Flashcards
Grade 5 · Science · Flashcards
Key vocabulary for photosynthesis, cellular respiration, and the carbon-oxygen cycle.
Flashcards
- Photosynthesis
- Process plants use to convert CO2 + H2O + light energy into glucose + O2.
- Cellular respiration
- Process all cells use to break down glucose + O2 into CO2 + H2O + energy (ATP).
- Chlorophyll
- Green pigment in chloroplasts that absorbs light energy for photosynthesis.
- Chloroplast
- Plant cell organelle where photosynthesis occurs; contains chlorophyll.
- Mitochondria
- Cell organelle where cellular respiration occurs; produces ATP energy.
- Glucose
- The sugar molecule (C6H12O6) produced in photosynthesis and consumed in cellular respiration.
- ATP
- Adenosine triphosphate; the energy molecule produced in cellular respiration that powers cell functions.
- Carbon dioxide (CO2)
- Gas absorbed by plants for photosynthesis and released by all cells during cellular respiration.
- Oxygen (O2)
- Gas released by plants as a photosynthesis byproduct; consumed by all cells during cellular respiration.
- Stomata
- Tiny pores on leaf surfaces that allow CO2 in and O2 and water vapor out.
- Carbon cycle
- The cycling of carbon through living organisms and the atmosphere via photosynthesis and respiration.
- Reactants
- The starting materials in a chemical reaction; CO2, H2O, and light are reactants of photosynthesis.
- Products
- The substances produced by a chemical reaction; glucose and O2 are products of photosynthesis.
- Autotroph
- An organism that makes its own food through photosynthesis; a producer.
- Heterotroph
- An organism that must eat other organisms to get energy; cannot perform photosynthesis.
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