AKS 2 Active/Passive Transport

When energy is needed to move a particle from an area of low concentration to an area of high concentration, what is this called?

• Active Transport

• Passive Transport

• Osmosis

What is it called when WATER molecules diffuse through a semi-permeable membrane from high to low concentration?

• Diffusion

• Active Transport

• Osmosis

What does semi-permeable mean?

• Some molecules can move through the membrane

• Nothing can move through the membrane

• All molecules can pass through the membrane.

What is equilibrium?

• When concentrations cannot be balanced between two substances 
• When concentrations are balanced between two substances 
• Making the energy in the top half of your body equal the the energy in the bottom half
• Concentrations do not exist 

Which type of transport requires an input of energy?

• Passive Transport
• Osmosis
• Simple Diffusion
• Active Transport

Movement of molecules through the cell membrane from high to low concentration

• passive transport

• active transport

Active transport moves substances against a concentration gradient 

• true
• false 

Which form of active transport is being shown?

• Pinocytosis
• Endocytosis
• Exocytosis
• Osmosis

Materials that can move across a membrane with passive transport include

• water, oxygen, and carbon dioxide
• starch and other polysaccharides
• DNA and RNA
• large proteins

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