Cell Transport

The movement of particles from an area of high to low concentration is known as--

• Passive Transport

• Active Transport

Cells need to bring in molecules to carry out cellular processes. Often, this requires moving the molecules across the cell membrane against the concentration gradient. How do these molecules get into the cell?

• passive transport by diffusion
• active transport using ATP 
• passive transport by osmosis
•  osmosis

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 

ALL living cells have this in common

• Nucleus
• Cell Membrane
• Cell Wall
• Mitochondria

Osmosis is the movement of _____ across a membrane.

• food
• energy
• oxygen
• water

Which is true about active transport?

• It requires energy
• It does not require energy
• It moves substances down the concentration gradient
• it moves material from high to low concentration

The concentration of water is higher in the soil than in plant root cells. Water moves into root cells of a plant by...

• Facilitated Diffusion
• Simple Diffusion
• Active Transport
• Osmosis

This cell structure helps organisms maintain homeostasis by controlling what substances may enter or leave cells.

• vacuole
• nucleus
• cell membrane
• cell wall

What type of transport is illustrated?

• facilitated diffusion
• active transport
• diffusion
• osmosis

The picture is an example of...

• active tranport
• passive transport
• diffusion
• osmosis