Membrane Transport

Membrane Transport

Membrane Transport

Movement across cell membranes maintains homeostasis

Multiple Choice

Membrane transport is the ____________ across cell membranes to maintain homeostasis.

• movement

• blocking

Homeostasis

The process within living organisms of maintaining a stable internal environment.

Multiple Choice

Homeostasis is maintaining a _______________ internal environment.

• unstable

• stable

Passive Transport

The movement of materials into or out of a cell without energy.

Active Transport

The movement of materials into or out of a cell with energy

Energy

Cell energy is call ATP.

Multiple Choice

Active Transport ___________ energy.

• Does not need

• needs

Multiple Choice

Passive Transport ____________ energy.

• does not need

• needs

Osmosis

• Type of passive transport

• Does NOT need energy

• Movement of water

• Across a selectively permeable membrane

Diffusion

• Type of passive transport

• Does NOT need energy

• Moves from high area to low area

• Ex: smelling food cooking from the kitchen to the living room.

Multiple Choice

Osmosis is the movement of water.

• True

• False

Multiple Choice

Diffusion is a type of active transport that requires energy.

• True

• False

Solute

A substance that gets dissolved

Solvent

A substance that does the dissolving

Solutions

A solute that is dissolved by a solvent. Example "salt water"

Multiple Choice

Water is a ____________.

• Solute

• Solvent

Multiple Choice

Sugar and salt can be a ____________.

• solute

• Solvent

Hypotonic

Solutes are lower. Cells will swell.

Hypertonic

Solutes are higher. Cells will shrink.

Multiple Choice

Solutes are __________ in hypotonic solutions.

• Lower

• Higher

Multiple Choice

Solutes are __________ in hypertonic solutions.

• Lower

• Higher

Multiple Choice

Water will move _________ of a cell that is in a hypotonic solution. This will cause the cell to swell.

• inside

• outside

Multiple Choice

Water will move _________ of a cell that is in a hypertonic solution. This will cause the cell to shrink.

• inside

• outside