Under what conditions can aerobic respiration be used as a means to generate the ATP needed to carry out cellular processes? A) Oxygen is absent; electron transport chain is not used.
B) Oxygen is absent; electron transport chain is used.
C) Oxygen is present; electron transport chain is not used.
D) Oxygen is present; election transport chain is used.

When in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? view available hint(s)when in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? active transportexocytosis