Transport

Transport

Three Forms of Transport Across the Membrane

Passive Transport

Passive Transport: Simple Diffusion

• ¡Doesn’t require energy

• ¡Moves high to low concentration

Multiple Choice

The picture below is an example of _________________.

• osmosis

• isotonic

• diffusion

• active transport

Multiple Choice

Which of the following pictures shows a higher concentration?

Multiple Choice

Which cell organelle/structure is responsible for allowing materials in and out of the cell?

• nucleus

• cytoplasm

• cell wall

• cell membrane

lFacilitated Diffusion

• ¡Uses transport proteins to move high to low concentration

• 
  

Facilitated Diffusion

• Molecules will randomly move through the pores in Channel Proteins.

• ¡They bond and drag molecules through the lipid bilayer and release them on the opposite side.

Multiple Choice

An increase in temperature does what to diffusion?

• Speeds it up
• Slows it down
• Has no effect
• I wish i knew. Really I do.

Multiple Choice

What does “high concentration area” mean?

• Spread out
• Tightly packed together
• Uncrowded
• Spacious

Active Transport

¡Requires energy or ATP

Multiple Choice

Which of the following is a sample of active transport?

• movement of oxygen from alveoli into red blood cell

• movement of water across cell membrane

• plant root absorbing mineral ions from the soil

• uptake of water by the root hair of the plant

Multiple Choice

What is the difference between active and passive transport?

• Active does not need energy and passive uses ATP (energy)
• Active uses ATP (energy) and passive does not need energy
• Active stores transport proteins and passive releases 
• Active uses hormones and passive does not 

Multiple Choice

Which type of transport requires an input of energy?

• Passive Transport
• Osmosis
• Simple Diffusion
• Active Transport

Multiple Choice

Cells sometimes use energy to transport materials across the cell membrane.  This is called

• photosynthesis
• osmosis
• cellular respiration
• active transport

Multiple Choice

The picture is an example of...

• active tranport
• passive transport
• diffusion
• osmosis

Multiple Choice

What type of transport is this?

• Endocytosis
• Facilitated Diffusion
• Active Transport Pump
• Osmosis