bio 101 lab exam 2 Flashcards
Activation energy
The amount of energy that must happen for a chemical reaction
How do enzymes alter their activation energy?
By bringing substrates closer together
What type of organic compound are most enzymes?
proteins
Why did we have to keep the materials on ice during the enzyme prep?
enzyme activity is low and protein stability is maximized
what does absorbance mean
substance to absorb light of a specified wavelength
how can you tell when you have reached equilibrium
when the curve levels out and the concentrations become constant
what is the pellet and supernatant?
the pellet is the material at the bottom of the tube, the supernatant is the liquid that is above it.
the equation for photosynthesis
6CO2 + 6H2O → C6H12O6 + 6O2
what are the 2 steps of photosynthesis?
light dependent reactions, and light independent reactions.
what is the products and intermediates for light dependent reactions
sunlight is captured and converted into energy of ATP
what is the products and intermediates for light independent reactions
ATP is used to make carbohydrates (glucose) from carbon dioxide
why did you see light emit from the separated chlorophyll
it had no electron transport system because the chloroplast thylakoid membranes were dissolved
3 variables that can affect the rate of photosynthesis
temperature, light intensity, and carbon dioxide concentration
what were the bubbles on the elodea leaves, and why did the water levels move?
the water moved as the plant emitted gases, the bubbles were the gases
why were we able to extract DNA from strawberries?
They have way more DNA than other fruits
