Cell Trasnport and Photosynthesis

Diffusion is a form of __________ transport.

• Passive

• Active

• Easy

• Free

Passive Transport uses ____ energy

• no

• a lot of

• a little bit of

• some

_____________ is the free movement of particles across the membrane with the concentration gradient

• diffusion

• facilitated diffusion

• active transport

• fusion

What is the movement of particles with the concentration gradient using protein "helpers"?

• diffusion

• facilitated diffusion

• active transport

• enzymatic reactions

The general name for movement of substances across cell membranes without need of energy input

• passive transport

• active transport

Osmosis is the movement of _____ across a membrane.

• food
• energy
• oxygen
• water

What forms the channels and pumps in the phospholipid bilayer?

• carbohydrates
• proteins
• hydrophilic heads 
• lipids

What three substances make up the cell membrane?

• lipids, starches, nucleic acids
• lipids, fats, sugars
• lipids, sugars, proteins
• lipids, proteins, carbohydrates

Diffusion & Facilitated Diffusion are both __________ transport.

• Passive

• Active

• Easy

• Free

Solutes move against the concentration gradient, therefore energy is needed. 

• Passive Transport
• Active Transport