Photosynthesis Flashcards
what is the photosynthesis word and symbol equation?
carbon dioxide + water –> glucose + oxygen
6CO2 + 6H2O → C6H12O6 + 6O2
arrow is light, chlorophyll
is photosynthesis an exothermic or endothermic reaction?
endothermic
what is the waxy cuticle?
a waterproof layer that stops water loss out the leaf
what is the upper epidermis?
layers of cells with no nucleus that allows light to pass through
what is the air space in the leaf?
it allows gases eg CO2 + O2 to diffuse in and out of leaves easily
what is the underside of a leaf covered in?
pores that open and close to allow gases in and out of the leaf
why are leafs thin?
to allow gases to diffuse easily
why can leaves change direction?
to face the sunlight
why do leaves have a large surface area?
to absorb more light
why do leaves have a large waxy layer on the top?
to reduce water loss
why do leaves have chloroplasts?
they contain chlorophyll which absorb light energy from the sun
why do leaves have veins?
to transport water to the leaf and glucose away from the leaf
why do leaves have many stomata?
to allow for gas exchange
where can chloroplasts mostly be found?
in the palisade and spongy mesophyll cells of the leaf
how does CO2 enter the leaf?
through the stomata
