Passive Transport and Osmosis

Osmosis is the movement of _______ from a high concentration to a low concentration.

• Glucose

• Sodium

• Water

• Smell

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Which claim is supported by this osmosis image?

• There is an equal amount of water movement inside and outside the cell

• Water is moving out of the cell because the solute concentration is higher outside than inside

• Solutes are moving into the cell to balance it inside and outside

• None of these correctly describe the image

Which way will the water move in this solution?

• Water does not move into cells

• the same rate in and out

• Out of the cell

• Inside the cell

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-3

Which statement is best supported?

• diffusion of molecules from a high to low concentration

• a protein channel moves molecules from high to low concentration

• Water is being moved across the membrane from low to high

• Na (sodium) is being selectively tansported

Passive transport moves from a _______ concentration to a ________ concentration.

• high to low

• high to high

• low to high

• low to low

Water can move across the cell membrane through the phospholipid bilayer, and also through protein channels called ____________________.

• porifera

• osmoporins

• aquaporins

• operculum

Tags

NGSS.MS-LS1-2

Osmosis is defined as:

• diffusion of water across as semipermeable membrane

• diffusion of molecules across a cell membrane

• active transport of water across a cell membrane

• any cell transport that does not require ATP

Tags

NGSS.MS-LS1-2

If a cell is surrounded by saltwater, and the saltwater has a higher concentration of solute than the interior of the cell, this would make the saltwater _________________ and the cell's cytoplasm __________________.

• hypertonic / hypotonic

• isotonic / hypotonic

• hypotonic / hypertonic

• hypertonic / isotonic

Tags

NGSS.MS-LS1-5

If the inside of the cell is hypotonic to the external environment, this would cause water to ________________ the cell.

• enter

• leave

Tags

NGSS.MS-LS2-3

When cells are in an isotonic solution:

• the water leaves the cells

• the water enters the cells

• there is no net movement of water