No, carbon dioxide does not need a transport protein to cross the cell membrane. It can pass through a membrane by diffusion.
Yes, small hydrophobic molecules can cross the cell membrane.
Yes, nonpolar molecules can cross the cell membrane through simple diffusion.
Yes, polar molecules can cross the cell membrane through facilitated diffusion or active transport.
Yes, small polar molecules can cross the cell membrane through a process called passive diffusion.
Yes, carbon dioxide (CO2) can diffuse through the lipid bilayer of a cell membrane.
Yes, small hydrophobic molecules can cross the cell membrane.
Yes, nonpolar molecules can cross the cell membrane through simple diffusion.
There are two ions that can cross the cell membrane. The positively charged sodium and potassium ions can cross back and forth across the neuron cell membrane.
molecules such as: CO2, O2, etc
Yes, polar molecules can cross the cell membrane through facilitated diffusion or active transport.
Water, oxygen, co2
It is the ability of the membrane to allow ions and/or particles to cross.
# The nuclear membrane is a thin membrane covering an animal cell. It holds in the cytoplasm, which in turn contains the organelles and nucleus of the cell. The cell membrane also allows the exchange of nutrients and oxygen/CO2.
Yes, small polar molecules can cross the cell membrane through a process called passive diffusion.
Intracellular
Polarity
Osmosis