photosynthesis

what reaction is photosynthesis?

endothermic reaction

how is photosynthesis carried

green plants an algae

symbol equation of photosynthesis

6 CO2 + 6 H2O --> C6H12O6 + 6 O2

Word equation for photosynthesis

Carbon dioxide + water -> glucose + oxygen

how is photosynthesis an endothermic reaction

energy is transferred from the environment to the chloroplasts by light

process of photosynthesis

carbon dioxide in take in and water is taken up to the roots

process number two for photosynthesis

chlorophyll traps light energy for photosynthesis

process number three for photosynthesis

energy is used to convert carbon dioxide and water into glucose and oxygen

how is leaves well adapted for photosynthesis

broad and flat and thin so diffusion path is small

guard cell opens stomata so gases can diffuse

veins contain xylem which brings water to the leaves and phloem take glucose away

what happens if there is lack of light for photosynthesis

slows the rate down because light transfers energy for the process

what happens if its cold for photosynthesis

enzymes do not work effectively which slows down the rate

what happens if there is limited carbon dioxide

rate of photosynthesis is slow

limiting factor

factor that causes the growth of a population to decrease

variegating leaf

less photosynthetic activity

light intensity and rate of photosynthesis practical:

count bubbles of oxygen per min

collect total volume of oxygen

if light source is near rate of photosynthesis increases

if light source the rate decreases

light intensity equation

1/distance^2

uses of soluble glucose

respiration, produce fats and oils, produce cellulose to strengthen the cell

examples of carnivore plants

Venus fly trap

Venus fly trap

collects insects due to low nitrogen in soil

more a plant photosynthesises

the more biomass it makes and the faster it grows

what do farmers use to increase photosynthesis

greenhouses and polytunnels

if temperature is maintained

there is optimum for enzyme activity

if there is CO2 increase

they do not become limited factors

if nutrient such as nitrate ion is maintained

optimum growth

hydroponics

a technique of growing plants (without soil) in water containing dissolved nutrients