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40 questions
A phospholipid has two parts. What are they called?
Hydrophilic Head, Hydrophobic Tail
Hydrophobic Head, Hydrophilic Tail
Controls the passage of materials inside and outside of the cell.
Cellmembrane
Cytoplasm
Cell wall
Endoplasmic reticulum
Which of the following is a function of the cell membrane?
breaks down lipids, carbohydrates, and proteins from foods
stores water, salt, proteins, and carbohydrates
synthesizes proteins and other macromolecules
regulates the movement of materials into and out of the cell
Which term describes the relatively constant internal physical conditions of an organism?
cell specialization
homeostasis
permeability
unicellularity
Which of the following is a true statement?
Cells are small because it allows a faster rate of chemical exchange.
Cells are small because it allows a slower rate of chemical exchange.
Cells are large because it allows a faster rate of chemical exchange.
Cells are large because it allows a slower rate of chemical exchange.
Which of the following molecules pass easily through the cell membrane, requiring little extra help or energy? Select all that apply.
sodium
glucose
oxygen
carbon dioxide
Which of the following molecules don't pass easily through the cell membrane, requiring extra help or input of energy?
sodium
glucose
oxygen
carbon dioxide
The ability to allow only certain molecules into or out of the cell.
Semipermeability
Permeability
Impermeability
Unpermeability
Why is the cell membrane like a window screen?
They both allow everything to pass through.
Neither allow anything to pass through.
They both allow certain things to pass through, while blocking the passage of others.
They are not similar to each other at all.
Which of the following is the function of the cell membrane? Select all that apply.
Provides instructions to the cell and other organelles.
Regulates compounds in and out fo the cell.
Allows cells to communicate and interact with other cells.
Breaks down wastes and other compounds.
Protects the cell from its environment.
Which of the following are embedded in the phospholipid bilayer and help substances pass through?
lipids
proteins
cholesterol
carbohydrates
Natural movement of particles from high to low concentration.
Passive Transport
Active Transport
The picture demonstrates an example of which type of cell transport?
Passive Transport
Active Transport
The picture demonstrates an example of which type of cell transport?
Passive Transport
Active Transport
The picture demonstrates an example of which type of cell transport?
Passive Transport
Active Transport
Solutes move DOWN the concentration gradient, therefore NO energy is used.
Passive Transport
Active Transport
Movement of materials from high to low concentration through a protein channel.
Facilitated diffusion
Simple diffusion
Osmosis
Endocytosis
Movement of particles that requires energy.
Passive Transport
Active Transport
The picture demonstrates an example of which type of cell transport?
Passive Transport
Active Transport
Passive Transport
Active Transport
The picture demonstrates an example of which type of cell transport?
Passive Transport
Active Transport
What is ATP?
energy
a protein
a lipid
matter
What is exocytosis?
A type of passive transport that removes material from the cell.
A type of passive transport that adds material to the cell.
A type of active transport that removes material from the cell.
A type of active transport that adds material to the cell.
What is endocytosis?
A type of passive transport that removes material from the cell.
A type of passive transport that adds material to the cell.
A type of active transport that removes material from the cell.
A type of active transport that adds material to the cell.
Solutes move AGAINST the concentration gradient, therefore energy IS needed.
Passive Transport
Active Transport
Type of cellular transport that uses ATP (energy).
Passive Transport
Active Transport
Which type of cellular transport uses energy? Select all that apply.
endocytosis
exocytosis
diffusion
osmosis
Which type of cellular transport does not use energy? Select all that apply.
endocytosis
exocytosis
diffusion
osmosis
Which process takes substances into a cell?
endocytosis
exocytosis
both
Which process removes substances from a cell?
endocytosis
exocytosis
both
What is it called when molecules move across the cell membrane from an area of high concentration to an area of low concentration through a carrier protein?
Simple diffusion
Osmosis
Endocytosis
Facilitated Diffusion
What will happen to a red blood cell if it is placed into a hypotonic solution?
It will swell and burst open.
It will shrink and shrivel.
Nothing will occur.
Water will move back and forth in a state of equilibrium.
What will happen to a red blood cell if it is placed into a hypertonic solution?
It will swell and burst open.
It will shrink and shrivel.
Nothing will occur.
Water will move back and forth in a state of equilibrium.
What does the cell use to transport substances too large to pass through the membrane?
vesicles
lipids
lysosomes
ribosomes
A membrane that allows certain molecules to pass is called...
impermeable.
permeable.
semipermeable.
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