Cells Active transport/passive transport

Active transport is different from passive transport in that active transport involves:

• the movement of molecules from high concentration to low concentration

• an expenditure of energy

• the use of ribosomes

• a process which occurs only in the cells of simple plants and animals

The process of osmosis is best illustrated by the movement of:

• water into root hair cells

• oxygen into red blood cells

• carbon dioxide through stomates

• glucose through phloem

Tags

NGSS.MS-LS1-1

A biologist diluted a blood sample with distilled water. While observing the sample under a microscope, she noticed the blood cells burst. This bursting is most likely caused by which process?

• staining

• ingestion

• osmosis

• active transport

Movement of molecules from an area of high concentration to an area of low concentration is

• diffusion 
• passive transport
• osmosis
• all of the above

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.

Tags

NGSS.HS-LS2-3

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 

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6

Which diagram best shows the end result of diffusion?

• F
• G
• H
• J

Tags

NGSS.HS-PS1-5

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