Cell Homeostasis

What type of transport is occurring in part A of the diagram?

• Facilitated Diffusion
• Osmosis
• Active Transport
• Diffusion

What type of transport is occurring in part B of the diagram?

• Osmosis
• Diffusion
• Facilitated Diffusion
• Active Transport

What type of transport is occurring in part C of the diagram?

• Passive Transport
• Osmosis
• Active Transport
• Facilitated Diffusion

Movement of particles across a membrane from an area of lower concentration to an area of higher concentration. 

• Facilitated Diffusion
• Osmosis
• Diffusion 
• Active Transport

Movement of particles from an area of higher concentration to an area of lower concentration without the use of a protein channel.

• Facilitated Diffusion
• Active Transport
• Osmosis
• Diffusion

Movement of particles from an area of higher concentration to an area of lower concentration using a protein channel.

• Facilitated Diffusion
• Osmosis
• Active Transport
• Diffusion 

___ is the maintenance of an internal balance of conditions in a changing external environment.

• Diffusion

• Endocytosis

• Passive transport

• Homeostasis

Molecules move in and out of a cell by diffusion. The picture shows a cell and molecules both inside and outside the cell. How will the molecules in this illustration move as a result of diffusion?

• into the cell

• out of the cell

• into another cell

• to the external environment

Organisms can respond to changes in their environment in order to maintain a balance, called homeostasis. What does a tree do to maintain homeostasis during the winter months?

• shivers

• hibernates

• absorbs sun

• loses leaves

Cells must be able to perform certain functions in order to survive. Which of the following must all cells do to survive?

• obtain energy

• absorb wastes

• utilize oxygen

• continue growing