CH 5: Photosynthesis and Cellular Respiration Flashcards
Is Photosynthesis or Cellular Resperation Anabolic or Catabolic?
- Photosynthesis - Anabolic
- Cellular Resperation - Catabolic
What is the top layer of a plant to help prevent it from leaking moisture?
Cuticle
Can be waxy or hairy
what is right under the cuticle in a plant
upper epidermis
What is the layer of a plant with large rectangular cells and is right next to the upper epidermis?
Palisade layer
What layer of the plant is right next to the lower epidermis and contains the xylem and phloem?
Spongy Layer
What is a stoma?
An opening within the plant to let gasses in and out.
What are the cells right next to the stoma called?
Guard cells
What is the area with the stoma and the guard cells called?
Lower Epidermis
What does the xylem do?
Moves water only Up the plant
What does the Phloem do?
Moves sugars around the plant (up and down)
Define Anabolic. Is it endergonic or exergonic?
Synthesizes larger molecules from smaller ones.
Endergonic
Define Catabolic. Is it endergonic or exergonic?
Breaks down big molecules into smaller ones.
Exergonic
Define Endergonic.
Absorbs energy, creating a product with more energy than the reactants
Define Exergonic.
Releases energy, reactants had more stored energy than the products
Free/Avaliable energy allows us to…
- Have very organized and ordered bodies
- Grow
- Reproduce
- Mintain homeostasis
- Have energy storage
Difference between Homeostasis and Ordered with energy
Homeostasis is maintaining internal temperature while ordered is maintaining the ability to function no matter what temperature it is.
Don’t have to know exact difference
Define Metabolism.
How quickly the organism turns food into energy.
What are two things that increase metabolism?
Eating certain foods and exercise
What are two things that slow down metabolism?
Age and dehydration.
Why do larger animals have slower metabolisms the smaller ones?
Smaller animals have a harder time maintaining a stable internal environment.
What is Oxidation?
The loss of an electron.
What is reduction?
The gain of an electron.
Does a molecule gain or lose energy when it is oxidized? What about reduced?
Molecules lose energy when it is oxidized and gain energy when it is reduced.
Why do objects show colours?
Objects appear to show colours because they selectively absorb certain wavelengths of light and reflect others..