Cell 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

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

• Osmosis
• Diffusion
• Endocytosis

Active transport allows a cell to move molecules from an area of low concentration to an area of high concentration.

• True
• False

_____________ allows some things to enter and leave cells, while keeping other things out of the cell.

• Nucleus control center of the cell

• Selectively Permeable golgi apparatus

• A selectively permeable membrane
• Non Permeable membrane

Tags

NGSS.MS-LS1-2

Cells sometimes use energy to transport materials across the cell membrane.  This is called

• Simple Diffusion

• osmosis
• Facilitated diffusion

• active transport

When the concentration of solutes on both sides of a membrane is the SAME, the solution is

• isotonic
• hypertonic
• hypotonic

A process for removing large quantities toxins and waste from the cell is

• exorcism
• exocytosis
• endocytosis
• endoplasmic reticulum

Facilitated diffusion involves movement of molecules across a membrane when they bond to 

• channel proteins
• lipid proteins
• a protein pump (carrier protein)
• sticky proteins

If there is 25% oxygen inside the cell and 50% oxygen in the outside blood, which direction will the oxygen move?

• Out of the cell
• Into the cell
• The cell is at equilibrium

Tags

NGSS.HS-LS2-3