IB Biology D2.3 Water Potential

A human organ is being prepared for transplant. In what type of solution must it be bathed?

• A. A hypertonic solution

• B. A hypotonic solution

• C. Pure water containing no solutes

• D. A solution with the same osmolarity as the organ tissue

Tags

NGSS.HS-LS1-3

The salt concentration inside an animal cell is 1.8 %. The salt concentration in the surrounding medium becomes 5 %. What will be the likely response?

• A. The cell will gain water from the medium.

• B. The cell will lose salt to the medium.

• C. The cell will remain unchanged.

• D. The cell will shrink from loss of water.

What is osmosis?

• A. The movement of water through a membrane from a low to a high solute concentration

• B. The movement of solutes through a membrane from a high to a low water concentration

• C. The movement of water through a membrane from a high to a low solute concentration

• D. The movement of solutes through a membrane from a low to a high water concentration

Which movement occurs by osmosis?

• A. Oxygen from alveoli into the blood

• B. Water from a leaf into the atmosphere

• C. Water from soil to root

• D. Nitrate ions from soil to root

Tags

NGSS.MS-LS2-1

Why do crop plants dry out when a field is irrigated with water contaminated by sea water?

• A. The plants lose water by active transport.

• B. The plants gain salt by osmosis.

• C. The plants gain salt by diffusion.

• D. The plants lose water by osmosis.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Where is there a high concentration of water?

• in the flower
• cannot be determined by picture.
• in the vase
• in the leaves

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

A person would never have pure water put into their veins in a hospital because their cells would...

• Shrink/Dehydrate
• Expand

Tags

NGSS.HS-LS1-3

A person should never drink salty water because their cells would

• shrink
• expand

Tags

NGSS.HS-LS1-3

What type of solution is this cell in?

• Isotonic
• Hypertonic
• Hypotonic
• diffused

What type of solution is this cell in?

• Isotonic
• Hypertonic
• Hypotonic
• diffused