Homeostasis and Cell Processes

What is osmosis?

• The movement of solute molecules from an area of higher solute concentration to an area of lower solute concentration through a semipermeable membrane.

• The movement of solvent molecules from an area of lower solute concentration to an area of higher solute concentration through a semipermeable membrane.

• The movement of solvent molecules from an area of higher solute concentration to an area of lower solute concentration through a semipermeable membrane.

• The movement of solvent molecules from an area of lower solute concentration to an area of lower solute concentration through a semipermeable membrane.

Tags

NGSS.MS-LS1-2

Define active transport.

• The movement of molecules across a cell membrane with their concentration gradient, requiring the expenditure of energy in the form of ATP.

• The movement of molecules across a cell membrane without the expenditure of energy.

• The movement of molecules across a cell membrane against their concentration gradient, requiring the expenditure of energy in the form of ATP.

• The movement of molecules across a cell membrane with their concentration gradient, without the expenditure of energy.

What is passive transport?

• Process of molecules moving against the concentration gradient.

• Process of molecules moving across a cell membrane without the use of energy

• Process of molecules moving across a cell membrane with the use of energy.

• Process of molecules moving through protein channels.

In which direction does water move during osmosis?

• Water moves from an area of lower solute concentration to an area of higher solute concentration.

• Water moves in both directions simultaneously during osmosis.

• Water moves from an area of higher solute concentration to an area of lower solute concentration.

• Water does not move during osmosis.

Name one example of active transport in cells.

• Exocytosis

• Endocytosis

• Sodium-potassium pump

• Facilitated diffusion

What is the main difference between active and passive transport?

• Active transport is faster than passive transport due to the use of carrier proteins.

• Active transport occurs across a concentration gradient, while passive transport occurs against a concentration gradient.

• Active transport involves the movement of molecules from an area of low concentration to an area of high concentration, while passive transport involves the movement of molecules from an area of high concentration to an area of low concentration.

• Active transport requires energy, while passive transport does not.

Explain the process of osmosis.

• Osmosis is the movement of solvent molecules from an area of lower solute concentration to an area of higher solute concentration through a semipermeable membrane.

• Osmosis is the movement of solvent molecules from an area of higher solute concentration to an area of lower solute concentration through a non-permeable membrane.

• Osmosis is the movement of solvent molecules from an area of higher solute concentration to an area of lower solute concentration through a permeable membrane.

• Osmosis is the movement of solute molecules from an area of higher solute concentration to an area of lower solute concentration through a semipermeable membrane.

Tags

NGSS.MS-LS1-2

How does passive transport differ from active transport?

• Passive transport does not require energy, while active transport requires energy.

• Passive transport is a faster process compared to active transport.

• Passive transport involves the movement of molecules from an area of high concentration to an area of low concentration, while active transport involves the movement of molecules from an area of low concentration to an area of high concentration.

• Passive transport occurs across a concentration gradient, while active transport occurs against a concentration gradient.

What are the types of passive transport?

• Active transport, Endocytosis, Exocytosis

• Diffusion, Osmosis, Facilitated diffusion

• Filtration, Pinocytosis, Phagocytosis

• Hypertonic, Hypotonic, Isotonic

Give an example of passive transport in cells.

• Osmosis

• Diffusion

• Active transport

• Endocytosis