Bio Flashcards
Gas and water exchange in plants occurs through?
The stomata
Stomata are boarded by?
Guard cells which regulate when water and gas are exchanged with the environment
Energy from the sun is stored in plants in the form of?
Carbohydrates through photosynthesis
Energy stored in carbohydrates is released in the form of
ATP through cellular respiration
What does ATP stand for?
Adenosine triphosphate
Adenine bonded to a 5 carbon sugar called ribose
Triphosphate = 3 groups attached to the ribose
What is ATP?
ATP is the source of energy for all activities in the body (e.g. muscle contractions, cell division etc.)
Where is chlorophyll found?
Found mainly in palisade and spongy tissue (called mesophyll)
The structure is surrounded by a double membrane to control movement of material between the chloroplast and the cytoplasm and contains?
Stacks of thylakoids called grama/granum
Which cell has a flat outer membrane and a folded inner membrane?
The mitochondria
The folds are called Cristae and increases surface area available for making ATP
Photosynthesis equation?
6Co2+6H2O) ——> C6 H12 O6 (g) + 6O2(g)
(Glucose)
Cellular respiration equation?
6O2(g)+C6 H12 O6 (g) —> 6Co2(g) + 6 H2O(g) + ATP
What is metabolism?
All the reactions within a cell to support or sustain life
What is anabolic and catabolic reactions?
Anabolic uses energy to make large molecules from smaller ones
Catabolic releases energy by breaking large molecules into smaller ones
Gamma radiation to radio frequency is?
High frequency to low frequency
Short wavelength to long wavelength
High energy to low energy
What is pigment?
A compound that absorbs some wavelengths of light
