CH 5.1-5.2 Vocabulary Review

What is the cytosol?

• The fluid base of the cytoplasm; contains molecules used and made by the cells

• The genetic material of the cell

• The outer layer of the cell

• The energy-producing organelle

What is the function of the plasma membrane?

• It surrounds a cell and separates it from the environment

• It produces energy for the cell

• It stores genetic information

• It synthesizes proteins

What is the fluid mosaic model?

• A model where proteins float freely through the phospholipid bilayer

• A model of DNA replication

• A model of cellular respiration

• A model of protein synthesis

What role do transport proteins play in the plasma membrane?

• They help move molecules across the membrane

• They store energy

• They produce proteins

• They replicate DNA

What is facilitated diffusion?

• Active transport that requires energy

• Passive transport that involves membrane proteins

• Movement of water across a membrane

• Transport of large molecules through vesicles

What is the extracellular matrix?

• A sticky coating outside the plasma membrane of animal cells that joins cells together

• The genetic material inside the nucleus

• The fluid inside the mitochondria

• The site of protein synthesis

What does the term "bilayer" refer to?

• Two layers

• Three layers

• Single layer

• Four layers

What does the cytoplasm contain?

• Organelles and cytosol

• Only DNA

• Only proteins

• Only lipids

What are gap junctions?

• Connections between cells made for support and communication

• Transport of molecules across a membrane

• Release of substances from a cell

• Movement of water across a membrane

What is passive transport?

• The movement of molecules across a membrane when the movement requires no energy

• The active transport of ions

• The synthesis of ATP

• The replication of DNA