PHOTOSYNTHESIS AND RESPIRATIONUnit: Plant Science

FIVE PLANT PROCESSES

1. Photosynthesis2. Respiration3. Water Absorption4. Translocation5. Transpiration

MOVEMENT OF NUTRIENTS AND WATER

1. Transpiration2. Translocation3. Absorption

MOVEMENT OF WATER AND NUTRIENTS

1. Transpirationa. Loss of water by evaporation through the leaf

surfaceb. Occurs when the stoma open to take in CO2

TRANSPIRATION

TRANSPIRATION

MOVEMENT OF WATER AND NUTRIENTS

2. Translocationa. movement of water and organic compounds within the plant

XYLEM AND PHLEOM

MOVEMENT OF WATER AND NUTRIENTS

3. Absorptiona. nutrients absorbed through root hairsb. Osmosis occurs by diffusionc. Diffusion is the movement of molecules from high concentration to low concentration

ABSORPTION

PHOTOSYNTHESIS

Process through which green plants convert carbon dioxide and water in the presence of light into simple sugar

6 CO2 + 6 H2O chlorophyll

C6H12O6 + 6 O2

(carbon (water) dioxide)

light energy

(glucose) (oxygen)

PHOTOSYNTHESIS

PHOTOSYNTHESIS

PLANTS USE FOOD FOR….

1. Energy2. Plant growth3. Store food4. Respiration

ENERGY

http://www.indiana.edu/~oso/animations/potato.html

PLANT GROWTH

http://www.indiana.edu/~oso/animations/ginkgogrowth.html

RESPIRATION

Breakdown of glucose C6H12O6 + 6O2 6CO2 + 6H2O + energy Releases Carbon dioxide and water into the

air Aerobic respiration- presence of oxygen Anaerobic respiration- without oxygen

AIR QUALITY

Plants release oxygen into the atmosphere Plants absorb carbon dioxide from the

atmosphere

REVIEW

FOOD

GLUCLOSE