Understand Properties Of Solutions 3.5 Flashcards
Which of the following statements about osmosis is true?
Osmosis involves the movement of water from an area of low concentration to an area of high concentration.
Osmosis involves a semipermeable membrane.
Osmosis is the diffusion of salt.
In osmosis, all water diffuses through cell membranes by slipping by the hydrophobic tails of phospholipids.
Osmosis involves a semipermeable membrane.
Which of the following is true about supersaturated solutions?
Supersaturated solutions contain less solute than allowed under particular conditions.
Supersaturated solutions contain more dissolved solute thag allowed under particular conditions.
Supersaturated solutions are stable.
Supersaturated solutions are dilute solutions.
Supersaturated solutions contain more dissolved solute than allowed under particular conditions.
One of the unique properties of water is _________
Which of the following completes the sentence above?
its ability to dissolve so many solutes that it is called the “universal solvent.”
that its adhesive properties allow it to “stick” to itself.
that it has a low specific heat capacity.
that solid water floats on liquid water because ice contains fewer hydrogen bonds.
its ability to dissolve so many solutes that it is called the “universal solvent.”
Hydrogen bonds ______
Which of the following completes the sentence above?
result from the attraction between ions that have opposite charges.
are made possible when a molecule contains nonpolar covalent bonds.
form between a partial positively-charged region on one molecule and the partial negatively-charged region on another molecule.
are the covalent bonds between oxygen and hydrogen in a water molecule.
form between a partial positively-charged region on one molecule and the partial negatively charged region on another molecule.
Which of the following statements is true about diffusion?
For diffusion to occur, a cell must expend energy.
Diffusion and osmosis do not have any relationship to each other.
Diffusion results from the attraction of oppositely charged ions.
Diffusion is the passive movement of a substance from an area of high cgncentration to low concentration.
Diffusion is the passive movement of a substance from an area of high concentration to low concentration.
Which of the following statements about osmosis is true?
Osmosis involves the movement of glucose from an area of low concentration to an area of high concentration.
Osmosis does not require a semipermeable membrane.
Osmosis is the diffusion of ions.
In osmosis, most water diffuses through pores made of the aguaporin proteirather than slipping by the hydrophobic tails c
phospholipids.
In osmosis, most water diffuses through pores made of the aquaporin protein rather than slipping by the hydrophobic tails of phospholipids.
Which of the following statements is true about solutions?
If two substances are soluble and form a single homogenous phase, they are immiscible.
If the maximum possible amount of solute is present in a solution, it is an unsaturated solution.
If less than the maximum amount of solute is dissolved in a solution, it is a saturated solution.
Liquid solutions can be made by dissolving solids, liquids, or gases in liquids.
Liguid solutions can be made by dissolving solids, liquids, or gases in liquids.
Which of the following is the correct expression for molality?
A Moles of solute per liter of solution
B Grams of solute per kg of solution
C Moles of solute per kg of solvent
D Milligrams of solute per kg of solution
Moles of solute per kg solvent
Hydrogen bonds _____
Which of the following completes the sentence above?
are made possible when a molecule contains ionic bonds.
form between two atoms of hydrogen.
form in higher numbers when water is higher in temperature.
are responsible for the organized structure of solid water that makes ice less dense than liquid water.
are responsible for the organized structure of solid water that makes ice less dense than liquid water.
Which of the following statements is true about diffusion?
Diffusion does not require the expenditure of energy by a cell.
Diffusion is a unique kind of osmosis.
Diffusion resuits from the hydrogen bonding between substances
Diffusion is the passive movement of a substance from an area of low concentration to high concentration.
2 Which of the following statements is true?
A. In a solution, solutes constitute a greater proportion.
B. The solubility of solid solutes increases with increase in temperature.
C. Vitamins with hydrophobic structures are water soluble.
D. The solubility of gas increases with increase in temperature.
B. The solubility of solid solutes increases with increase in temperature.
1 Which of the following describes the process of (fusion?
A It is the movement of substances from a solid to liquid
state.
B. It is the movement of a substance from areas of high concentration to low concentration.
C. It requires a large amount of energy.
D. It is specific to the movement of water only.
B. It is the movement of a substance from areas of high concentration to low concentration.
Concentrations of sodium dissolved in water are higher inside the cell than outside. Which of the following best predicts which way the water will flow?
A Water will remain in equal concentrations on both
sides of the cell membrane.
B. Water will move from its low concentration (outside the cell) to the higher concentration (inside the cell).
C. Water will move from its high concentration (outside the cell) to the lower concentration (inside the cell).
D. Water will increase in concentration inside and outside the cell.
C. Water will move from its high concentration (outside the cell) to the lower concentration (inside the cell).
To move from regions of low to high concentrations energy must be used
Which requires what energy ?
Active transport
