Podcast
Questions and Answers
What describes the net movement of a solvent across a selectively permeable membrane?
What describes the net movement of a solvent across a selectively permeable membrane?
- Diffusion
- Osmosis (correct)
- Active transport
- Facilitated diffusion
Which type of protein allows the movement of water through the cell membrane?
Which type of protein allows the movement of water through the cell membrane?
- Enzyme protein
- Channel protein (correct)
- Carrier protein
- Glycoprotein
What is the force that could oppose the movement of water across a membrane due to osmosis?
What is the force that could oppose the movement of water across a membrane due to osmosis?
- Ionic bonds
- Gravity (correct)
- Covalent bonds
- Hydrogen bonding
Which transport process uses the energy of ATP to move molecules across the cell membrane?
Which transport process uses the energy of ATP to move molecules across the cell membrane?
What is the term used to describe the tendency of a solution to draw water in by osmosis?
What is the term used to describe the tendency of a solution to draw water in by osmosis?
What is the function of the hydrophilic regions in a cell membrane?
What is the function of the hydrophilic regions in a cell membrane?
What is the primary function of a carrier protein in the cell membrane?
What is the primary function of a carrier protein in the cell membrane?
Which type of molecular movement occurs when there is no longer a concentration gradient?
Which type of molecular movement occurs when there is no longer a concentration gradient?
What is the main difference between simple diffusion and facilitated diffusion?
What is the main difference between simple diffusion and facilitated diffusion?
What is the role of channel proteins in the cell membrane?
What is the role of channel proteins in the cell membrane?
Why are lipids and embedded proteins crucial for maintaining homeostasis in cells?
Why are lipids and embedded proteins crucial for maintaining homeostasis in cells?
What is the main reason for the dynamic nature of cell membranes?
What is the main reason for the dynamic nature of cell membranes?
How does cholesterol affect membrane fluidity at high temperatures?
How does cholesterol affect membrane fluidity at high temperatures?
Which type of fatty acid tails results in a more fluid membrane?
Which type of fatty acid tails results in a more fluid membrane?
What role do transporters play in cell membranes?
What role do transporters play in cell membranes?
Which kind of protein spans the entire lipid bilayer?
Which kind of protein spans the entire lipid bilayer?
How do channel proteins differ from carrier proteins in cell membranes?
How do channel proteins differ from carrier proteins in cell membranes?
