Homeostasis & Transport - Module A

If the environment gets cold, we will often shiver in order to:

• keep body temperature the same as the external temperature
• decrease body temperature
• increase body temperature
• regulate blood pressure

Tags

NGSS.HS-LS1-3

How does a cell maintain homeostasis?

• Regulates what enters and leaves the cell
• Flexibility
• Protective barrier
• Structure and support

Tags

NGSS.HS-LS1-3

What type of transport requires energy from ATP?

• Osmosis
• Diffusion
• Facilitated diffusion
• Active transport

If a cell is placed in a hypotonic environment, water will move _____.

• Inside the cell membrane

• Outside the cell membrane

• back and forth

• None of the above

Active transport requires ______, moves materials from ______, and goes _______ the concentration gradient.

• No energy, low to high, against

• ATP, high to low, with

• ATP, low to high, with

• ATP, low to high, against

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

This means that oxygen is not needed

• anaerobic 
• aerobic

Tags

NGSS.HS-LS2-3

How is diffusion different from this process?

•  Diffusion takes place due to osmotic pressure. 
• Diffusion requires cellular energy for the transfer of molecules.
• Diffusion requires protein channels as a passage-way for particles
• Diffusion transfers particles from an area of high to low concentration. 

Which type of Passive Transport is being represented in this picture?

• Passive Diffusion
• Simple Diffusion
• Active Diffusion
• Facilitated Diffusion

Hydrophilic portion of cell membrane?

• A
• C
• D
• E