Tonicity BR

The diffusion of WATER across a semi-permeable membrane is

• osmosis
• diffusion
• endocytosis
• exocytosis

How does a cell maintain homeostasis?

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

Tags

NGSS.MS-LS1-2

A cell will _____________________ in a hypertonic solution.

• swell
• shrink
• will not change
• will explode

Tags

NGSS.MS-LS1-5

A cell will __________________ in a hypotonic solution.

• swell and perhaps burst (lyse)
• shrink
• the size of the cell will not change
• the size of the cell will change from large to small and from small to large

After examining this diagram showing the concentration of water inside and outside of the cell, identify the tonicity of the solution.

• hypertonic

• hypotonic

• isotonic

Tags

NGSS.MS-LS1-2

The solution surrounding the cell in Diagram B, would be defined as:

• hypertonic

• hypotonic

• isotonic

Tags

NGSS.MS-LS1-2

The cell below is in a _________ solution.

• Hypotonic
• Hypertonic
• Isotonic

Tags

NGSS.MS-LS1-2

What type of solution is this cell in?

• Isotonic
• Hypertonic
• Hypotonic
• diffused

Tags

NGSS.MS-LS1-5

Nemo and other ocean dwelling fish cannot survive in freshwater because......

• freshwater is hypertonic to Nemo's cells and will result in water leaving them causing the cells to shrink

• freshwater is hypotonic to Nemo's cells and will result in water leaving them causing the cells to shrink

• freshwater is hypertonic to Nemo's cells and will result in water entering them causing the cells to swell and burst

• freshwater is hypotonic to Nemo's cells and will result in water enter them causing the cells to swell and burst

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

Homeostasis

• allows for a wildly fluctuating internal environment
• is impossible in vertebrates
• is the maintenance of a relatively stable internal environment

• is the maintenance of a relatively stable external environment

Tags

NGSS.HS-LS1-3