2.6 Photosynthesis

Question 1

photosynthesis

Answer 1

an endothermic reaction where energy is transferred from the environment to the chloroplasts by light from the sun. Glucose is made.

Question 2

glucose

Answer 2

made during photosynthesis
can be stored as starch, used straight away in respiration or used to make cellulose

Question 3

stomata

Answer 3

holes on the underside of the leaf which open and close to allow for gas exchange
control the loss of water by closing during the night but open during the day thanks to guard cells

Question 4

spongy mesophyll

Answer 4

a tissue found in plant leaves that is specialised for gas exchange by having air spaces that allow the diffusion of gasses to happen quicker

Question 5

waxy cuticle

Answer 5

on top of the upper epidermis that is insoluble so waterproofs the leaf and reduces evaporation of water but transparent to allow light to pass through for photosynthesis

Question 6

palisade mesophyll

Answer 6

a tissue found in the plant leaves that are specialised to carry out photosynthesis by being vertically packed to capture more sunlight and to store more chloroplasts