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;
5 Cards in this Set
- Front
- Back
7.3.1 (Core)
Geotropism & Phototropism (Definition) |
Geotropism: A response in which a plant grows toward or away from gravity.
Phototropism: A response in which a plant grows toward or away from light. |
|
7.3.2 (Extended)
Auxins (and their effects) |
Auxin: Plant hormone, stimulates growth. Cells on the shaded side of a plant receive more auxins, stimulating that side to grow and bend toward the light.
|
|
7.4.1 (Core)
Homeostasis (Definition) |
Homeostasis: The maintenance of a constant internal environment.
|
|
7.4.3 (Core)
Maintenance of constant body temperature |
Fat insulates against heat.
Sweat cools the body by convection. Vasodilation + Vasoconstriction controls blood flow to the capillaries, Vasodilation allows more blood to flow, allowing heat to radiate from the skin, Vasodilation decreases blood flow and radiation. |
|
7.4.4 (Extended)
Negative Feedback |
Negative Feedback: ensures the reversion of changes and return to a set level in control systems. ie the control of the body temperature
|