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Photosynthesis equation
Carbon dioxide + water = glucose + oxygen
Chlorophyll
a green substance found in chloroplasts which absorbs light energy
Carbon dioxide and Water
reactants for photosynthesis
Oxygen
by-product of photosynthesis
Limiting factors
light intensity, temperature and carbon dioxide concentration
Temperature
this effects the speed a which enzymes controlling photosynthesis work
Respiration
releases energy from glucose
Cellulose
found in the cell wall of plant cells
nitrates
combined with glucose to make amino acids (proteins)
Starch
a store of glucose in leaves and roots
light intensity
The limiting factor shown by the slope of the graph is....
Temperature or CO2 concentration
On the flat part of the graph what might be the limiting factor?
Low temperature
What is the limiting factor for photosynthesis on a sunny but very cold day?
TERM
Waxy cuticle
DEFINITION
stops evaporation of water from leaves
TERM
Upper epidermis
DEFINITION
Transparent so light can pass through
TERM
palisade mesopyill
DEFINITION
tightly packed leaf cells with lots of chloroplasts
TERM
Spongy mesophyll
DEFINITION
loosely packed, irregular cells with spaces around them
TERM
guard cell
DEFINITION
found in pairs mostly on the underside of leaves
TERM
stomata
DEFINITION
holes on the underside of leaves for gas exchange
TERM
air space
DEFINITION
allows CO2 to get to cells and oxygen to leave by diffusion
photosynthesis is what type of reaction
endothermic
sunlight
main source of energy for photosynthesis
xylem
tissue that carries water upward from the roots to leaves
phloem
Living tissue that carries sugar throughout a plant
root hair cell
large surface area for maximum absorption of water and minerals from the soil
transpiration
Evaporation of water from the leaves of a plant
Transpiration is fastest
hot, dry and windy conditions
Wilts
when a plant loses more water than is replaced
water cycle
The continuous cycling of water from the Earth's surface to the atmosphere and back
Condensation
process which changes water vapour into rain
Precipitation
rain, snow, sleet, or hail that falls to the ground.
surface runoff
water that flows over land to lakes, rivers or seas
Groundwater flow
Water that is flowing beneath earths surface
Note 
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