Exam Prep Flashcards
Whenever plants get CO2 from the air, what else do they get?
Carbonic acid.
Consider in photosynthesis? •
•products and reactants of photosynthesis
•Light ……
•
In CAM plants, they convert CO2 to?
Crassulacean acid
The wavelength of PQ is?
400 nm
Fluorescence occurs when? 2•
•There is either excess light that the photo systems cannot take in
•If chlorophyll is isolated and not associated to an antenna.
Colour of light: red light with low energy
The wave analogy?
Too much energy at the start, and is transferred as a wave via resonance transfer to adjacent pigments.
A more efficient plant will?
Carbon fixation occurs more often than photorespiration, which wastes energy.
Things that cause rubisco to perform more photorespiration 2•
•Lower ratio of CO2:O2 (O2 concentrations increasing
•Higher temperature (CO2 binding affinity decreases even more)
What causes relatively higher concentrations of O2 compared to CO2? 2•
•No fixation/concentration mechanisms
•Higher temperature (O2 concentration increases)
When talking about photosynthesis efficiency, think about what?
Photorespiration.
!!!Spatial separation vs temporal separation?
Isovolumic (isovolumetric) ventricular contraction?
When the left ventricle contracts when all valves are closed, and the ventricle increases in pressure without changing volume.
In the exam, do we need to explain why the electrical gradient overcomes the concentration gradient when ions move towards their equilibrium potential?
Yes, but talk about how the membrane potential strives to reach the equilibrium potential of the ion, so the relationship between the equilibrium and membrane potential determines the direction of ions, no matter the concentration gradient.
How does the strength of electrical gradient vs concentration gradient when the cell’s membrane potential reach the equilibrium potential of the ion?
The electrical gradient is the same strength as the concentration gradient.
