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;
12 Cards in this Set
- Front
- Back
|
Define Stimulus |
Anything in the surroundings that an organism can respond to |
|
|
Define Response |
The action taken to a stimulus |
|
|
Define Phototropism |
Growth response of a plant to light |
|
|
Define Geotropism |
Growth response of a plant to gravity |
|
|
Define Hydrotropism |
Growth response of a plant to water |
|
|
Define Chemotropism |
Growth response of a plant to chemicals |
|
|
Define Thigmotropism |
Growth response of a plant to touch |
|
|
Define Tropism |
Growth response of a plant to a stimulus |
|
|
Function of Plant Growth Regulators |
Controls growth in plants |
|
|
Two types of PGR |
Growth promotors and Growth inhibitors |
|
|
Functions of Ethene |
Causes ripening of a fruit Causes fruit colour to develop Causes leaves to fall in Autum |
|
|
Functions of Abscisic acid |
Causes buds/scabs to form on trees Causes dormancy in seeds Causes stomata to close in dry conditions |
