Cell Structure and Function and Homeostasis

Spraying Axe body spray in a corner of the room and someone on the opposite corner smells it is an example of what?

• Osmosis

• Facilitated diffusion

• Active transport

• Diffusion

The phospholipid bilayer is ____________

• Permeable 
• Impermeable
• Semipermeable 
• None of the above

Tags

NGSS.MS-LS1-2

If a solution is hypotonic, the direction of water is ________________.

• Inside the cell membrane

• Outside the cell membrane

• Within the cell membrane

• None of the above

If the solution is hypertonic, the direction of water is ________________.

• Inside the cell membrane

• Outside the cell membrane

• Within the cell membrane

• None of the above

Your gums are swollen. How will rinsing with warm salt water help the swelling?

• swollen gums will absorb the salt
• salt lowers the temp
• salt goes against the concentration gradient
• water in the gums has diffused out of the cells

Tags

NGSS.HS-PS1-5

Two different solutions are separated by a membrane permeable only to water. How will molecules move?

• solutes will move by dissolving
• water will move by active transport
• solutes will move by osmosis
• water will move by osmosis

if you put a plant in salt water it will ...

• swell because water diffuses into the cells
• swell because water diffuses out of the cell
• shrivel because water diffuses out of the cell

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-5

This is a ____.

• Golgi body
• plasma membrane
• lysosome
• cell wall

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 organelle helps organisms maintain homeostasis by controlling what substances may enter or leave cells.

• vacuole
• nucleus
• cell membrane
• cell wall

Tags

NGSS.HS-LS1-3