Question

Either true (t) or false (f)

A) ___ The initial portions of both aerobic and anaerobic respiration involve the direct utilization of oxygen molecules during this glycolytic sequence
B) ___ The movement of protons from the matrix through the electron transport chain to the intermembrane space would be an example of facilitated diffusion.
C) ___ The proton pumps of the inner membrane of the mitochondrion are examples of integral transmembrane, active-transport carrier proteins.
D.___ During the series of reactions called Glycolysis there is a net production of 6 ATPs and 2 of these ATPs are produced (phosphorylated) during the initiation (first ½) of this process.
E.___ Ribozymes are catalytic molecules in cells that function like enzymes but are composed of nucleic acid (RNA).
F.___ The pigment molecules, that make up a component of the chloroplasts of a plant, absorb light best in the green wavelengths and that is why the plants appear so green.
G.___ Bacterial rhodopsin pigment has the ability to absorb light energy, to generate of a proton gradient, and this potential energy can be used for the production of ATPs.
H.___ Chemiosmosis and the Citric Acid Cycle take place within the cytoplasm of the cell.
I.___ During both photosynthesis and anaerobic respiration the event of chemiosmosis occurs and produces ATPs as a result of a proton motive force.
J.___ The final electron acceptor, for the electron transport chain, in anaerobic respiration is almost exclusively an organic molecule and usually NAD+.
K.___ The initial "reason" for one of your muscle cells to switch to fermentation is a lack of adequate final electron acceptor levels which then leads to a shortage of NAD+.
L.___ The final electron acceptor, that receives electrons from the molecules embedded in the chloroplast membrane (site of photophosphorylation), is a molecule of NADP+.

Answer 1

A. false

cellular respiration occurs both aerobically(using oxygen) and anaerobically(without oxygen).

glycolysis is the initial step similar to aerobic and anaerobic respiration; hence, it is a common pathway.

In aerobic conditions, pyruvate enters the citric acid cycle and undergoes oxidative phosphorylation leading to the net production of 32 ATP molecules.

In anaerobic conditions, pyruvate converts to lactate through anaerobic glycolysis.