Diffusion & Active Transport

What type of transport moves molecules from areas of lower concentration to areas of higher concentration?

• Passive
• Active

What type of transport does not require the use of ATP (energy)?

• Passive
• Active

Which term refers to the movement of water?

• Diffusion
• Facilitated diffusion
• Active transport
• Osmosis

What type of transport is shown in the diagram?

• diffusion

• facilitated diffusion

• endocytosis

• exocytosis

What does it mean that a cell membrane is, "selectively or semi-permeable?"

• It allows all substances in
• It allows some substances in but not others
• It allows nothing in

What type of transport is this?

• Facilitated Diffusion
• Exocytosis
• Active Transport
• Diffusion

The picture is an example of _________________.

• endocytosis
• diffusion
• osmosis
• active transport

Passive Transport is the movement of particles across the membrane from an area of [ ___ ] to an area of [ ___ ]

• high to low

• low to high

• low to low

• high to high

Passive Transport uses ____ energy

• no

• a lot of

• a little bit of

• some

An example of diffusion is

• CO₂ and O₂ exchange in the lungs

• Glucose transport

• Na⁺ / K⁺ Pumps

• Exocytosis