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Questions and Answers
What is the primary function of transport proteins in the cell?
What is the primary function of transport proteins in the cell?
- To synthesize large nonpolar molecules
- To help transport molecules in and out of the cell (correct)
- To act as receptors for the cell
- To regulate the movement of gases in the cell
Which type of molecule can pass through the cell membrane easily?
Which type of molecule can pass through the cell membrane easily?
- Charged molecule
- Large polar molecule
- Small nonpolar molecule (correct)
- Amino acid
What is the characteristic of symporter proteins?
What is the characteristic of symporter proteins?
- Move molecules with their gradient
- Move molecules in the same direction (correct)
- Move molecules in opposite directions
- Move molecules against their gradient
What is the process of molecules moving from higher concentration areas to lower concentration areas?
What is the process of molecules moving from higher concentration areas to lower concentration areas?
What is the function of secondary active transporter proteins?
What is the function of secondary active transporter proteins?
Which type of molecule is unable to pass through the cell membrane?
Which type of molecule is unable to pass through the cell membrane?
What is Fick's law used to model?
What is Fick's law used to model?
What is the flux of molecules flowing through a membrane given in terms of?
What is the flux of molecules flowing through a membrane given in terms of?
What is the direction of diffusive flux?
What is the direction of diffusive flux?
What is P in the equation J = P (C1-C2)?
What is P in the equation J = P (C1-C2)?
What is the condition for facilitated diffusion?
What is the condition for facilitated diffusion?
What is the relation between J and concentration gradient?
What is the relation between J and concentration gradient?
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