Homeostasis and Cell Processes

_______________________ is the maintenance of a constant __________ state in a changing environment.

How do unicellular organisms maintain homeostasis?

• They drink water.

• The cell membrane and other parts of the cell regulate what materials get into and out of the cell.

• The vacuole and other parts of the cell regulate what materials get into and out of the cell.

• The nucleus and other parts of the cell regulate what materials get into and out of the cell.

Which animal organ is responsible for carrying oxygen and other materials through the body and into each cell?

• Blood

• Blood vessels,

• Heart

• Lungs.

What else does that same organ do?

• It carries information to body parts..

• It carries waste out of the cells.

• It carries waste out of your body.

• It carries information into the cells.

What does the xylem do, in plants?

• It transports water and minerals from the roots to the rest of the plants.

• It forms the plant's bark.

• It transports food made within plant cells.

• It transports chloroplasts oout of the cells.

What does the phloem do, in plants?

• It transports water and minerals from the roots to the rest of the plants.

• It forms the plant's bark.

• It transports food made within plant cells.

• It transports chloroplasts oout of the cells.

How do cells get energy?

• They get food from other cells.

• They break down materials such as food.

• They use electricity from the sun.

• They use water and minerals from the ground.

What is a by-product of the breaking down of materials?

• Getting raw materials the cell uses to make other materials for cell processes.

• New food.

• Waste products to be taken away from the cell.

• Carbon dioxide.

Explain the process modeled in the diagram.

The process through which cells use oxygen to produce energy from food is called ______________ ________________.