Homeostasis, Cell Membrane, Types of Transport

Keeping constant or stable internal conditions is called ____________.

• Metabolism

• Homeostasis

• Osmosis

• Diffusion

Which cell organelle helps maintain homeostasis within the cell?

• Nucleus

• Golgi Complex

• Ribosomes

• Cell Membrane

Select the properties of a cell membrane.

• Made of phospholipids

• Only found in plant cells.

• Semipermeable

• Found inside the cell.

• Bilayer of phospholipids

The fatty acid tail of a phospholipid is __________.

• Hydrophilic (water-loving)

• Hydrophobic (water-hating)

Transport (carrier) proteins help ____________ molecules get in and out of the cell.

In active transport, substances move from ________ to _______ concentrations

• low to high

• high to low

Which type of transport does NOT require energy from the cell?

• active transport

• passive transport

• endocytosis

• exocytosis

Which type of transport creates a concentration gradient?

• Facilitated Diffusion

• Passive Transport

• Diffusion

• Active Transport