Cellular Transport

Passive transport is called "passive" because it occurs WITHOUT

• cause.
• energy.
• a concentration gradient.
• a cell wall.

Osmosis is the diffusion of _____ across a membrane

• glucose
• NaCl
• proteins
• water

Tags

NGSS.MS-LS2-1

Which of the following is NOT a type of passive transport?

• Osmosis
• Diffusion
• Endocytosis

What does semi-permeable mean?

• Only some things can move through membrane
• Nothing can move through membrane
• Reagan can move through membrane
• Membrane connot be moved through

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 

What does “high concentration area” mean?

• Spread out
• Tightly packed together
• Uncrowded
• Spacious

What process occurs when WATER diffuses across a membrane?

• endocytosis
• mitosis
• osmosis
• nuclear fission 

Tags

NGSS.MS-LS2-3

Why is diffusion and osmosis important to cells?

• It allows them to take in materials without using energy.
• It allows them to reproduce.
• It allows them to absorb sunlight.
• It allows cells to use all energy.

When molecules are spread evenly across the cell membrane, ______________________ is reached.

• difference
• transportation
• equilibrium
• solution

Where is there a low concentration of dye?

• at the bottom of cup
• in the color
• at the top of cup 
• no concentration gradient

Tags

NGSS.MS-PS1-2