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Questions and Answers
Which process requires an input of energy to transport molecules from lower to higher concentration?
Which process requires an input of energy to transport molecules from lower to higher concentration?
- Simple diffusion
- Osmosis
- Facilitated diffusion
- Active transport (correct)
What is responsible for active transport in maintaining a proper balance of ions and molecules?
What is responsible for active transport in maintaining a proper balance of ions and molecules?
- Simple diffusion
- Vesicle-mediated transport
- Osmosis
- Sodium-potassium pump (correct)
What type of cellular transport mechanism involves substances crossing the cell membrane without the input of energy?
What type of cellular transport mechanism involves substances crossing the cell membrane without the input of energy?
- Osmosis (correct)
- Active transport
- Diffusion through ion channels
- Facilitated diffusion
In active transport, the movement of materials occurs in which direction?
In active transport, the movement of materials occurs in which direction?
Which of the following is an example of active transport?
Which of the following is an example of active transport?
What mechanism involves the Sodium-Potassium pump?
What mechanism involves the Sodium-Potassium pump?
Which process describes substances moving through ion channels without energy input?
Which process describes substances moving through ion channels without energy input?
What type of cellular transport allows substances to cross the cell membrane from higher to lower concentration without energy input?
What type of cellular transport allows substances to cross the cell membrane from higher to lower concentration without energy input?
Which of the following is NOT a type of active transport mechanism?
Which of the following is NOT a type of active transport mechanism?
What do active transport and passive transport have in common?
What do active transport and passive transport have in common?
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