Answer:
A. The particles crossing the membrane do not have a charge.
D. The movement across the membrane does not require added energy.
F. The particles crossing the membrane could be water (H2O) or oxygen (O2).
Explanation:
A. The particles crossing the membrane do not have a charge. - true, only small, uncharged particles can freely cross the cell membrane unassisted.
B. The movement across the membrane requires energy from ATP. - false, the molecules are moving across the membrane by passive transport, via simple diffusion
C. The movement across the membrane requires energy from glucose. - false, the molecules are moving across the membrane by passive transport, via simple diffusion
D. The movement across the membrane does not require added energy. - true, the molecules are moving across the membrane by passive transport, which does not require energy.
E. The particles crossing the membrane could be proteins or carbohydrates. - false, the particles will be smaller than carbohydrates or proteins that can move by passive transport
F. The particles crossing the membrane could be water (H2O) or oxygen (O2). - true, the particles are likely to be small, uncharged molecules such as water or oxygen
G. The particles crossing the membrane have a strong positive or negative charge - false, the particles are uncharged if they cross the membrane freely
