Cell Transport

Passive transport is when molecules move ________ the concentration gradient.

• against

• up

• down

• with

This picture shows molecules of red dye that have moved. What is this type of movement called?

• Osmosis; the water molecules are moving from high concentration to low

• Simple diffusion; the dye molecules are moving from low to high concentration

• Simple diffusion; the dye molecules are moving from high to low concentration.

• Facilitated diffusion; because the molecules are moving through a protein channel.

Tags

NGSS.MS-PS1-2

This picture is a representation of what type of transport?

• Osmosis because water is diffusing through a protein from an area of high concentration to low concentration.

• Facilitated diffusion because it is diffusing through a protein from an area of high concentration to low concentration.

• endocytosis because it is diffusing through a protein from an area of low concentration to high concentration.

• Simple diffusion because it is diffusing through a protein from an area of high concentration to low concentration.

Which type of passive transport focuses on the movement of water through the membrane?

• Facilitated diffusion

• Osmosis

• Diffusion

Active transport requires energy because...

• The cell is moving something against a concentration gradient
• The cell is moving something with a concentration gradient

What part of the cell regulates what can enter and leave the cell?  

• Cell Membrane
• Nucleus
• Mitochondria
• Cytoplasm

Tags

NGSS.MS-LS1-2

Particle of movement from an area of lower concentration to an area of higher concentration.

• Active transport

• Passive transport

What is the term to describe maintaining internal balance in the cell? 

• Diffusion

• Homeostasis

• Osmosis

• Active transport

Tags

NGSS.HS-LS1-3

What type of active transport does waste move out of the cell?

• Endocytosis

• Exocytosis

• Sodium Potassium Pump

• Diffusion

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

• Osmosis
• Diffusion 
• Endocytosis
• Exocytosis