Cell Membrane, Transport, And Communication Question Preview (ID: 33237)


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What aids in the movement of some animal cells?
a) Cilia
b) Pilli
c) Flagella
d) Amoeba

Short, thick outgrowths that allow prokaryotes to attach to the surface of other cells are called
a) Cilia
b) Pilli
c) Flagella
d) Enzymes

What is one organelle that plant cells have that animal cells lack (or do not have)?
a) Mitochondria
b) Cell membrane
c) Cell wall
d) nucleus

Which of the following is an example of a message that has a general target?
a) text message
b) skype
c) phone call
d) post on social media

Signaling cells secrete:
a) proteins
b) fats
c) hormones
d) all of the above

When cell's membranes are touching, how will they communicate?
a) chemical signals
b) talking to each other
c) through their membranes
d) cells cannot communicate

When cell's membranes are not touching and they are far away from each other, how will they communicate?
a) through their hormones and proteins
b) passing information through their membranes
c) by electric impulses
d) all of the above

Environmental signals are:
a) signals that occur within our bodies
b) signals that occur outside of our bodies
c) signals that have no effect on the body
d) none of the above

Do target cell receive more signals than they will accept?
a) Yes
b) No
c)
d)

All of the helpful proteins are found in the:
a) cytoplasm
b) cell membrane
c) surrounding environement
d) none of the above

When a signal binds to a receptor:
a) The protein changes shape
b) Enzymes are activated
c) The permeability changes
d) all of the above

Which of the following would not be an example of the cell membrane?
a) enyzmes
b) phospholipid bilayer
c) signal molecules
d) multiple cells

The layer that makes up the cell membrane is called the:
a) A guard dog
b) A principal
c) A door
d) A convertible

Has a single, polar head and two non-polar tails:
a) Phospholipid bilayer
b) a single phospholipid
c) enzymes
d) none of the above

The head of a phospholipid is:
a) Polar
b) non-polar
c) water-loving
d) two of these are correct

Cell-surface markers:
a) are located on the cell membrane
b) act as a name tag
c) mark and identify cell types
d) all of the above

Does diffusion require energy?
a) Yes
b) No
c) only facilitated diffusion require energy
d) only simple diffusion requires energy

Receptor proteins:
a) can become enzymes
b) enable a cell to sense its surroundings
c) aid in the movement of substances in/out of the cell
d) two of these are correct

When one area has a higher concentration of a substance than another area does.
a) Osmosis
b) concentration gradient
c) active transport
d) facilitated diffusion

What substance help with facilitated diffusion?
a) channel proteins and water
b) cell-surface markers and enzymes
c) carrier proteins and enzymes
d) channel proteins and carrier proteins

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