Homeostasis And Transport (2): Question Preview (ID: 22273)

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The contractile vacuole in a paramecium should be active when it is in
a) a hypotonic environment
b) any environment
c) an isotonic environment
d) a hypertonic environment

The process in which substances move down their concentration gradient across the cell membrane with the assistance of carrier proteins is
a) active transport
b) the transport through ion channels
c) facilitated diffusion
d) endocytosis

The energy needed to power the sodium-potassium pump is provided by the
a) binding of ATP to the pump
b) transport of ATP by the pump
c) splitting of ATP
d) formation of ATP

A way for cells to release large molecules, like proteins, is
a) endocytosis
b) cytolysis
c) exocytosis
d) diffusion

The movement of molecules from an area of higher concentration to an area of lower concentration is
a) endocytosis
b) exocytosis
c) diffusion
d) active transport

A plant cell will undergo plasmolysis when it is in a
a) hypotonic solution
b) hypertonic solution
c) isotonic solution
d) pure water solution

What part of the cell do materials have to pass through to enter and exit all cells?
a) The nucleus
b) A vesicle
c) The cell membrane
d) The cell wall

The part of the cell that functions to maintain homeostasis relative the cell's environment is the
a) cytosol
b) golgi apparatus
c) cell membrane
d) nucleus

When the cells in a plant have low turgor pressure, the plant
a) is rigid
b) dies
c) wilts
d) explodes

A cell must expend energy to transport substances using
a) cell membrane pumps
b) facilitated diffusion
c) ion channels
d) osmosis

Some animal cells engulf, digest, and destroy invading bacteria through the process of
a) exocytosis
b) phagocytosis
c) pinocytosis
d) all of the above

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