b8- photosynthesis Flashcards
what is the word equation for photosynthesis?
carbon dioxide + water = glucose + oxygen
where does photosynthesis take place?
in the chlorplasts
what does chlorophyll do?
it is inside chloroplasts and it absorbs light
what type of reaction is photosynthesis?
endothermic
what affects the rate of photosynthesis?
light intensity
concentration of carbon dioxide
temperature
what does a limiting factor do?
stops photosynthesis from happening any faster
why do plants need glucose?
for respiration
for making cellulose
for making amino acids
what are cell walls made out of?
cellulose
what do plants turn glucose into? why?
starch
for storage
what is potassium used for?
respiration and photosynthesis
why are phosphates needed?
for making dna and membranes of a new cell
why do plants need magnesium?
making chlorphyll
why do plants need amino acids?
for making proteins
what is hydroponics?
growing plants using mineral nutrients solutions
what are two advantages of using hydroponics?
restricts use of damaging chemicals
doubles the growth rate
what are two disadvantages of hydroponics?
requires more money
and more attention
where is starch found?
in the chloroplasts
why do plants need to make lipids?
they are essential for the integrity of the cells and organelles by acting as a barrier for the membrane
how does photosynthesis contribute to a plant’s biomass?
Photosynthesis produces glucose which
is used to make larger, complex molecules that make up the mass Of the plant’s living material.
describe the relationsnip between increasing lignt intensity and the rate of photosynthesis?
The rate of photosynthess increases with increasing light intensity up to a point at which the rate
LeVeIs off
