Which of the following particles could diffuse easily through a cell membrane?
a) Oxygen (O2)
b) Hydrogen ion (H+)
c) Sodium ion (Na+)
d) Glucose
Answer: a) Oxygen (O2) (Small nonpolar molecules such as oxygen can diffuse across cell membranes.)
Which of the following particles could diffuse easily through a cell membrane?
a) Oxygen (O2)
b) Hydrogen ion (H+)
c) Sodium ion (Na+)
d) Glucose
Answer: a) Oxygen (O2) (Small nonpolar molecules such as oxygen can diffuse across cell membranes.)