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WorksheetsActive and Passive transport test
Total questions: 20
Worksheet time: 11mins
what is active transport?
requires the use of cellular energy (ATP) to move molecules across the cell membrane.
random movement of molecules across the cell membrane that requires no cellular energy (ATP).
consists of a hydrophilic phosphate head and two hydrophobic fatty acid chain tails.
the ability of an organism to maintain and regulate constant or stable internal conditions.
what is passive transport?
requires the use of cellular energy (ATP) to move molecules across the cell membrane.
random movement of molecules across the cell membrane that requires no cellular energy (ATP).
a vesicle moving substances out of the cell and into the environment
used when molecules need to move against the concentration gradient.
Active Transport requires ATP to work
False
True
what are the two reasons of energy is required to move a molecule across the membrane in active transport?
Molecules need to move across the cell membrane against the concentration gradient. Molecules move from areas of low concentration to areas of high concentration.
Some molecules are just too large to pass through the membrane by passive transport.
The molecule is pumped through the membrane from an area of low concentration to an area of high concentration.
because it is required
in passive transporte, Molecules move from an area of high concentration to low concentration.
True
False
what are the two ways substances can be moved in and out of the cell.
Molecules can be pushed through the cell membrane using special transport proteins called protein pumps.
Molecules can be forced through the cell membrane by a vesicle.
Some molecules are just too large to pass through the membrane by passive transport.
I Dont Know
what are Protein pumps?
used when molecules need to move against the concentration gradient.
Molecules can be forced through the cell membrane by a vesicle.
a vesicle moving substances out of the cell and into the environment
moving substances into the cell from the outside environment.
what is Bulk Transport?
Moving large substances through the cell membrane. Vesicles pick up molecules and force them in or out by fusing with the cell membrane.
A vesicle moving substances out of the cell and into the environment
Moving substances into the cell from the outside environment
Fluids and other solutes enter the cell (cell drinking).
what is Exocytosis?
a vesicle moving substances out of the cell and into the environment
Moving large substances through the cell membrane. Vesicles pick up molecules and force them in or out by fusing with the cell membrane.
moving substances into the cell from the outside environment.
larger substances, like bacteria, enter the cell (cell eating).
what is Endocytosis?
moving substances into the cell from the outside environment.
fluids and other solutes enter the cell.
a vesicle moving substances out of the cell and into the environment
Moving large substances through the cell membrane. Vesicles pick up molecules and force them in or out by fusing with the cell membrane.
what is Pinocytosis?
Fluids and other solutes enter the cell.
Larger substances, like bacteria, enter the cell
Moving substances into the cell from the outside environment
A vesicle moving substances out of the cell and into the environment
what is Phagocytosis?
Larger substances, like bacteria, enter the cell.
Fluids and other solutes enter the cell.
Used when molecules need to move against the concentration gradient.
A vesicle moving substances out of the cell and into the environment.
what is a Concentration Gradient?
The difference in concentration of molecules across a distance.
random movement of molecules across the cell membrane that requires no cellular energy
Molecules move from an area of high concentration to low concentration.
A substance that other substances dissolve in
if you axsedintay put too much sugar in a pitchur in tea, is that a high consitration and low consitration?
low sonsitration
high consitration
the higher the consentration of disdolved partials in a solution (solute), the _________ the consintration of water molecules in that solution.
higher
lower
greater
smaller
this solution has the highest consitration od particles.
hypertonic
isotonic
hypotonic
this solution has the highest concentration of water molecules.
hypertonic
hypotionic
isotonic
this is the simplest form of passive transport?
osmosis
diffusion
facillitated diffusion
endocytosis
the cell organelle helps organisms maintaine homeostasis by controling what substances may enter or leave
vacuole
nucleus
cell membrane
cell wall
controling what goes into or out of the cell without energy is called
active transport
endocyTosis
passive transport
exocytosis
