Homeostasis And Transport: Question Preview (ID: 22272)


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A solution with a relatively low solute concentration is
a) hypotonic b) hypertonic c) isotonic d) concentrated
A membrane bound organelle formed by part of the cell membrane pinching off to form a sac is a
a) Golgi Complex b) Lysosome c) Vesicle d) Nucleus
A cell engulfing a large particle or whole cell is performing
a) exocytosis b) pinocytosis c) cytolysis d) phagocytosis
______ occurs when a cell shrinks
a) plasmolysis b) turgor c) phagocytosis d) cytolysis
The uptake of large amounts of solutes or fluids is called
a) phagocytosis b) cytolosis c) exocytosis d) pinocytosis
Cytolysis is when a cell
a) divides b) reproduces c) bursts d) shrinks
The difference in concentration across a space is the
a) hypotonicity b) concentration gradient c) equilibrium of the cell d) vesicle
Hypertonic refers to the
a) relatively high solute concentration b) relatively low solute concentration c) solubility of the cell d) equilibrium of the solutions
When the substances in a cell are in equilibrium with the substances in the outside solution, the solution is considered
a) hypertonic b) hypotonic c) turgor d) isotonic
Which type of transport requires energy?
a) Passive transport b) Diffusion c) Active transport d) Osmosis
Sodium-potassium pumps
a) move sodium ions and potassium ions into the cell b) move sodium ions and potassium ions out of the cell c) move sodium ions out of the cell and potassium ions into the cell d) move sodium ions into the cell and potassium ions out of the cell
The net movement of water across a cell membrane occurs
a) from a hypotonic solution to a hypertonic solution b) from a hypertonic solution to a hypotonic solution c) from an isotonic solution to another isotonic solution d) through gated water channels
The process of diffusion requires
a) a cell membrane b) an aqueous solution c) a difference in the concentration of molecules throughout a space d) All of the above
If the molecular concentration of a substance is the same throughout space, the substance
a) has a large concentration gradient b) is in equilibrium c) will undergo diffusion d) will undergo osmosis
A type of transport in which water moves across a membrane and down its concentration gradient is
a) simple diffusion b) facilitated diffusion c) diffusion through ion channels d) osmosis
All forms of passive transport depend on
a) energy from the cell in the form of ATP b) the kinetic energy of molecules c) ion channels d) carrier proteins
In a plant cell, water molecules exert _____________ on the cell membrane
a) adhesion b) turgor pressure c) aqueous pressure d) osmosis
Molecules diffuse down their concentration gradient (high to low)
a) True b) False c) d)
When a solution is in equilibrium, all movement of its molecules stops.
a) True b) False c) d)
Which of the following is not a type of passive transport?
a) facilitated diffusion b) osmosis c) endocytosis d) ion channels
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