Chapter 4 Plants Flashcards
Where is the stomata found?
Lower epidermis
What does the stomata do?
Let carbon dioxide diffuse into the leaf
Where does the CO2 go first after passing through the stomata?
Spongy Mesophyll
Where does the CO2 go after the spongy mesophyll?
Palisade mesophyll
What is the purpose of the palisade mesophyll layer?
Where most of photosynthesis occurs
How do palisade cells photosynthesise?
Using the large amount of chloroplasts they have
What is the Upper Epidermis?
A transparent layer of “epidermal tissue “ which is how sunlight gets to the palisade mesophyll layer ro photosynthesise
Once sugar is created from photosynthesis in the palisade mesophyll layer where does the sugar leave the leaf from?
The phloem
What is the purpose of the waxy cuticle?
To reduce water lost during the photosynthesis process
How do stomata prevent water loss without blocking them off (which would prevent it from getting Carbon Dioxide)?
They stay open for as short a time as possible at a time by opening and closing (to maximise carbon dioxide and minimise water loss)
What do you call a single stomata?
Stoma
What is it called when plant cells have lots of water and become bigger?
Turgid
What is it called when plants lose water and become “smaller”
Flaccid
What is an adaptation of a plant (when it comes to water conservation (
When it has an abundance of water the guard cells become turgid and allow for large amounts of CO2 as they are less concerned about water loss whereas if it has low amounts of water they will become flaccid and close up which prevents as much CO2 entering but also prevents water loss
What is another adaptation for the leaf (when it comes to stomata,sunlight and water loss)
Most stomata grows on the underside of the plant as it is more shaded meaning less water will be lost to evaporation
