Exam 2 Flashcards
What is the main purpose of the electron transport chain?
Create a proton gradient
T OR F
Cellular respiration spontaneously creates energy for an organism so that it can survive?
FALSE
How does carbon fixation differ between C3 and C4 plants?
Rubisco is the primary enzyme that catalyzes carbon fixation in C3 plants, and PEP carboxylase can catlyze carbon fixation in C4 plants
Where do the phases of the Calvin Cycle take place
Stoma
When do cells switch from cellular respiration to fermentation?
When Electron acceptors required by the ETC are not available
What is the net production of ATP from only one molecule of glucose in Eukaryotes
29
If you could add any of the following to a cell, which one would result in the highest increase in the synthesis of ATP in the mitochondria?
Increased NADH in the matrix
What is the reason that leaves turn red, yellow, and orange during the fall?
When going dormant the first molecules to break down are chlorophylls
In photorespiration, the enzyme _____ binds ____ instead of ____ and ultimately ends up using ______ instead of producing it?
Rubgisco, O2, Co2, ATP
What is the first law of thermodynamics?
Energy is neither created nor destroyed?
Where does the Krebs cycle occur?
The mitochondrial matrix
What molecule is the final product of the Calvin Cycle and is used to create glucose?
G3P
Phosphofructokinase (PFK) is an important enzyme in which process?
Glycolysis
The entire process of photosynthesis is employed to turn _____ energy into ____ energy
Light, Chemical
The electron transport chain is a ______ reaction
Oxidation
The following molecules can be broken down for energy, list in order what molecule the body starts with, which one is 2nd and last
1- fats
2-Proteins
3 Carbohydrates
Charbohydrates, fats, proteins
what is the formula for photosynthesis?
6 CO2 + 6 H2O + energy -> C6H12O6 + 6 O2
If corn grain with radioactive glucose were fed to a chicken, most of the radioactivity would be transferred from molecule to molecule along which path?
Corn grain to pyruvate to Krebs cycle to carbon dioxide
Two energy wavelengths are absorbed in photosynthesis, which are they?
P680 and P700
T OR F
Plant cells do not contain Mitochondria, instead cellular respiration occurs within their chloroplast making it more efficient to go through photosynthesis and cellular respiration
FALSE
Acetyl CoA is the enzyme that fuels which cycle?
Krebs Cycle
If a plant takes in radio-labeled CO2, where will that molecule eventually end up?
Stored in glucose
In the human cell, anaerobic production of ATP during periods of quick, intense exercise is possible. What molecule is the electron acceptor during this period of exercise?
Pyruvate
Plants are placed along the wall of a dark room. Light is then shown thorugh a prism sparating all wavelenghts of light. All the wavelengths of light are directed at a specific plant, which plant grows the least and what is the reason for its lack of growth?
Plants in the green wavelenght grow the least because they cannot photosynthesize
