Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
7 Cards in this Set
- Front
- Back
|
why are leaves broad? |
to maximise exposure to sunlight |
|
|
why is the palisade layer close to the top of the leaf? |
contains chloroplasts so need to be exposed to a lot of light |
|
|
features and functions of the upper epidermis? |
transparent so light can pass through to palisade layer |
|
|
functions of the xylem? |
carry water and mineral salts from root to shoot in transpiration stream support leaf structure |
|
|
functions of the phloem? |
transport sugars and amino acids from leaves to wherever needed in the plant (translocation) support leaf structure |
|
|
function of the waxy cuticle? |
reduces water loss by evaporation |
|
|
functions of the stomata? |
let CO2 diffuse directly into the leaf |
