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Worksheets2.4 Transport Across Membrane
Total questions: 20
Worksheet time: 13mins
A process that does NOT use cellular energy is know as
active transport
passive transport
metabolic transport
living transport
Cellular transport is regulated by cell membranes. This happens because cell membranes are __________________________.
impermeable
fully permeable
rigid
selectively permeable
Movement of large and polar molecules down the concentration gradient until equilibrium is achieve
Movement of small, uncharged (non-polar) molecules down the concentration gradient until equilibrium is achieve
Movement of small, uncharged (non-polar) solute molecules against the concentration gradient until equilibrium is achieve
Movement of small, uncharged (non-polar) solute molecules against the concentration gradient using ATP
Osmosis is the movement of _____ from higher water potential region to lower water potential region through semi permeable membrane
food
energy
oxygen
water
Out of the cell, so the cell shrinks
Out of the cell, so the cell swells.
Into the cell, so the cell shrinks.
Into the cell, so the cell swells.
What happens to a plant cell when placed in a HYPOTONIC solution?
the cell lysis
the cell become turgid
the cell is plasmolysed
In diffusion, materials always move from areas of _____________ concentration, to areas of _____________ concentration.
low, high
high, low
low, low
high, high
What process is shown in the diagram below?
active transport
diffusion
osmosis
facilitated diffusion
When cells take in food molecules through active transport, what is it called?
diffusion
phagocytosis
exocytosis
osmosis
Energy from ATP changes the carrier protein's _______ to move molecules in and out of the cell.
charge
temperature
shape
position
Which is true of the sodium-potassium pump?
It moves potassium into the cell and sodium out of the cell.
It moves sodium into the cell and potassium out of the cell.
It moves both sodium and potassium into the cell.
It moves both sodium and potassium out of the cell.
How many sodium ions are moved by the sodium potassium pump?
How many potassium ions are moved by the sodium potassium pump?
four sodium ions,
two potassium ions
two sodium ions,
four potassium ions
three sodium ions,
two potassium ions
one sodium ion,
four potassium ions
