Photosynthesis
Define photosynthesis: - answer Process by which a cell captures energy in sunlight
and uses it to make food. Nearly all LIVING things obtain energy either directly or
indirectly from energy of sunlight.
Define Autotroph: - answer An organism that makes its own food
Define Heterotroph: - answer An organism that does not make its own food
List the two stages of photosynthesis: - answer Stage 1: Capturing the sun's energy
Stage 2: Using energy to make food
Explain stage one of photosynthesis: - answer Chloroplasts in plants cells capture
energy from sunlight
Define Chlorophyll: - answer Main photosynthetic pigment in chloroplasts
Explain stage two of photosynthesis: - answerWater and carbon dioxide are used to
produce sugar
1. Roots absorb water from the soil, water moves through the plants stem
2. Carbon dioxide enters cell through tiny openings called stomata
3. Water and carbon dioxide move into chloroplast
4. Go through complex chemical reactions that are powered by the energy captured in
stage 1
5. Chemical reactions produce sugar
6. Also produces oxygen - exits leaf though stomata
Explain why all living things depend on photosynthesis to survive: - answerAll living
things depend on photosynthesis as a source of energy. Photosynthesis produces
glucose or sugar and that stays with in the plant. This sugar is used for energy not only
by the plant, but also by the organisms that consume it.
What type of organism does photosynthesis occur in? - answerPhotosynthesis occurs
only in plants and a VERY small amount of organism because photosynthesis only
occur in a small green pigment called chlorophyll and only plants and some other
organisms contain chlorophyll in their cells.
Define photosynthesis: - answer Process by which a cell captures energy in sunlight
and uses it to make food. Nearly all LIVING things obtain energy either directly or
indirectly from energy of sunlight.
Define Autotroph: - answer An organism that makes its own food
Define Heterotroph: - answer An organism that does not make its own food
List the two stages of photosynthesis: - answer Stage 1: Capturing the sun's energy
Stage 2: Using energy to make food
Explain stage one of photosynthesis: - answer Chloroplasts in plants cells capture
energy from sunlight
Define Chlorophyll: - answer Main photosynthetic pigment in chloroplasts
Explain stage two of photosynthesis: - answerWater and carbon dioxide are used to
produce sugar
1. Roots absorb water from the soil, water moves through the plants stem
2. Carbon dioxide enters cell through tiny openings called stomata
3. Water and carbon dioxide move into chloroplast
4. Go through complex chemical reactions that are powered by the energy captured in
stage 1
5. Chemical reactions produce sugar
6. Also produces oxygen - exits leaf though stomata
Explain why all living things depend on photosynthesis to survive: - answerAll living
things depend on photosynthesis as a source of energy. Photosynthesis produces
glucose or sugar and that stays with in the plant. This sugar is used for energy not only
by the plant, but also by the organisms that consume it.
What type of organism does photosynthesis occur in? - answerPhotosynthesis occurs
only in plants and a VERY small amount of organism because photosynthesis only
occur in a small green pigment called chlorophyll and only plants and some other
organisms contain chlorophyll in their cells.
