Cell Transport

Cell Transport

Active and Passive transport

Multiple Choice

What are the two types of cell transport?

• Passive and Active

• Active and Facilitated

Multiple Choice

In order for the cell to stay alive and maintain homeostasis, it needs to do what?

• Move objects in and out of the cell

• keep everything in until it burst

• get rid of everything

Diffusion

• When particles move from high concentration to low concentration.

• Some objects can easily pass through the cell membrane without assistance

Multiple Choice

When particles move from areas of high concentration to areas less concentrated, this has taken place.

• diffusion

• mitosis

• endocytosis

Multiple Choice

Which of the following pictures shows a higher concentration?

Facilitated Diffusion

• A channel or protein is used to help move big particles into and out of the cell

• They do not require ATP or energy to move in and out

Multiple Choice

Which type of passive transport only involves water?

• Diffusion

• Osmosis

Multiple Select

What is DIFFUSION?

Multiple Choice

Where is there a low concentration of dye?

• at the bottom of cup

• in the color

• at the top of cup

Active Transport

• If particles are too large or go against the concentration gradient.

• Requires ATP or energy to move particles in and out.

• There are three types of active transport: endocytosis, pumps, exocytosis

Active Transport-Membrane Pump

• A membrane pump moves substances against the concentration gradient

• It can substances from a low concentration to a high concentration

Endocytosis

• This allows the cell to move larger objects into the cell by engulfing the object and moving it into the cell.

Multiple Choice

A process in which cells surround and engulf substances that are TOO BIG to enter the cell is known as...

• Pinocytosis

• Phagocytosis

• Endocytosis

Exocytosis

• Occurs when the cell expels an object outside of the cell

• They are incased in a vesicle and expelled out of the cell

Multiple Choice

This picture represents which type of cellular transport?

• passive transport

• endocytosis

• exocytosis

Passive Transport

• When objects move from high concentration to low concentration without assistance

• Does not require energy

Multiple Choice

During passive transport, molecultes move from an area of ______ concentration to an area of _____ concentration.

• higher, lower

• lower, higher

Osmosis

• The process where particles move water across a semi-permeable membrane

• It applies to water only

• Water always move from a hypotonic environment to a hypertonic environment.

• In other words-water moves towards areas of high salt or sugar concentrations

Multiple Choice

Osmosis is the movement of _____ across a membrane.

• food

• energy

• water

Hypotonic

• when the solute concentration is greater inside the cells than in the surrounding water.

• Cause the cell to swell and burst

Multiple Choice

What type of solution is this cell in?

• Isotonic
• Hypertonic
• Hypotonic
• diffused

Hypertonic

• When the water within the cell diffuse(move out) across the membrane and are on the outside of the cell

• cause the cell to shrink

Multiple Choice

Which describes a hypertonic environment?

• Too much water in the cell will cause the cell to burst - the percentage of water is higher outside the cell than inside the cell

• Too little water in the cell will cause the cell to shrink - the percentage of water is lower outside the cell than inside the cell

• Concentrations of water are equal inside and outside the cell

Isotonic

• When the solution is the same inside and outside of the cell

• it will thrive and survive

Multiple Choice

Is it safe to drink salt water?

• Yum, so salty!

• No, you could die of dehydration.

Multiple Choice

Which describes an isotonic environment?

• Too much water in the cell will cause the cell to burst - the percentage of water is higher outside the cell than inside the cell

• Too little water in the cell will cause the cell to shrink - the percentage of water is lower outside the cell than inside the cell

• Concentrations of water are equal inside and outside the cell

Multiple Choice

During active transport, molecultes move from an area of ______ concentration to an area of _____ concentration.

• higher, lower

• lower, higher

Multiple Choice

Cells use energy to move materials across a membrane (low to high concentration).

• Active transport

• Passive transport

Multiple Choice

Active Transport typically uses ______ to transport materials across the cell membrane.

• ATP

• Glucose

Multiple Choice

An animal cell placed in a hypertonic (salty) solution will

• Stay the same

• Shrink- get smaller

• Swell- get bigger

Multiple Choice

Active transport requires _____ to move materials across the cell membrane.

• proteins

• energy

Multiple Choice

What type of transport is this?

• Active Transport

• Facilitated Diffusion

Multiple Choice

The movement of particles from an area of high concentration to an area of low concentration

• active transport

• osmosis

• diffusion

Multiple Choice

The movement of materials that requires energy is called...

• active transport

• passive transport

• massive transport

Multiple Choice

The movement of materials that does NOT require energy is called...

• active transport

• passive transport

• massive transport

Multiple Choice

Structure that controls the cellular traffic of the cell.

• Ribosome

• Cell Membrane

• Mitochondria

Multiple Choice

When a cell forms a vesicle around unwanted particles and expels it OUT of the cell.

• Pinocytosis

• Endocytosis

• Exocytosis

Multiple Choice

What is the definition of OSMOSIS?

• Diffusion of water through a selectively permeable membrane

• Molecular structure that surrounds the cell and controls what enters and leaves the cell

• Movement of molecules across the cell membrane against the concentration gradient

Multiple Choice

In this image, the cell is using which type of molecular transport?

• Endocytosis

• Exocytosis

Multiple Choice

What are the two types of cell transport?

• Passive and Active

• Active and Facilitated

• Passive and Facilitated