WorksheetsCell transport: SA:V & Water potential
Total questions: 20
Worksheet time: 23mins
Water loving- substances that dissolve water
(a)
Water fearing- substances that don't dissolve in water
(a)
When the concentration gradient of a solute is higher on one side of the membrane in question than on the other.
(a)
The substance that dissolves other substances
(a)
Movement of solute across a membrane against its concentration gradient. Process requires both energy and membrane proteins.
(a)
When the concentration gradient of a solute is higher on one side of the membrane in question than on the other.
(a)
The amount of a solute per amount of solvent
(a)
The movement of a solute across a membrane in the direction of its concentration gradient that that requires the use of membrane proteins to Traverse the membrane
(a)
Water fearing these substances don't dissolve in water
(a)
When the concentration of solute is lower on the side of the membrane in question than the other
(a)
When solute concentration is equal on both sides of a semi permeable membrane
(a)
The movement of water across a membrane in order to equalize solute concentration
(a)
The movement of a solute across a membrane in the direction of its concentration gradient (from high concentration to low concentration).
(a)
What determines the rate of nutrients and waste are exchanged from the cell and the environment?
surface ratio
surface area
volume
surface area to volume ratio
Which cells are more efficient at obtaining nutrients?
Small Cells
Large Cells
Medium Size Cells
X-Large Cells
As a cell’s size increases, its ratio of surface area to volume decreases
True
False
Which solid with a volume of 12 sq. units would have the greatest surface area to volume ratio?
1cm x 1cm x 12cm
1cm x 4cm x 3cm
1cm x 2cm x 6cm
2cm x 2cm x 3cm
If a cells Ψp = 3 bars and its Ψs = -4.5 bars, what is the resulting Ψ ?
-7.5 bars
-1.5 bars
7.5 bars
1.5 bars
The cell from question 1 is placed in a beaker of sugar water with Ψs = -4.0 bars. In which direction will the net flow of water be?
Out of the cell
Both into and out of the cell
Into the cell
Neither into nor out of the cell
The value for Ψ in root tissue was found to be -3.3 bars. If you take the root tissue and place it in a 0.1 M solution of sucrose at 20° C in an open beaker, what is the Ψ of the solution, and in which direction would the net flow of water be?
Ψs = -3.3, net flow into the root
Ψs = -2.43, net flow into the root
Ψs = 3.3, net flow out of the root (into the solution)
Ψs = 2.43, net flow out of the root (into the solution)
