the attraction of water to the hood of a car is an example of what? (a) ph (b) cohesion (c) adhesion...
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The attraction of water to the hood of a car is an example of what? (A) pH (B) cohesion (C) adhesion (D) specific heat
The attraction of water to the hood of a car is an example of what? (A) pH (B) cohesion (C) adhesion (D) specific heat
What term describes the sugar in a glass of lemonade? (A) solvent (B) solution (C) solute (D) protein
What term describes the sugar in a glass of lemonade? (A) solvent (B) solution (C) solute (D) protein
What is the pH of a neutral solution? (A) 3 (B) 11 (C) 1 (D) 7
What is the pH of a neutral solution? (A) 3 (B) 11 (C) 1 (D) 7
What is an acid? (A) a compound that releases a hydrogen ion in water (B) a compound that removes a hydrogen ion from water (C) a compound that increases the pH of a solution (D) a compound that produces a buffer in solution
What is an acid? (A) a compound that releases a hydrogen ion in water (B) a compound that removes a hydrogen ion from water (C) a compound that increases the pH of a solution (D) a compound that produces a buffer in solution
How is an ionic bond formed between two atoms? (A) A pair of electrons is shared between two atoms. (B) The outer energy levels of the atoms are filled. (C) An electrical force forms between pairs of electrons. (D) An electrical force forms between oppositely charged ions.
How is an ionic bond formed between two atoms? (A) A pair of electrons is shared between two atoms(B) The outer energy levels of the atoms are filled. (C) An electrical force forms between pairs of electrons. (D) An electrical force forms between oppositely charged ions.
What term describes a substance that is made when two or more different atoms bond together in a certain ratio? (A) element (B) molecule (C) covalent substance (D) compound
What term describes a substance that is made when two or more different atoms bond together in a certain ratio? (A) element (B) molecule (C) covalent substance (D) compound
What is formed when an atom gains or loses electrons? (A) an element (B) a compound (C) an ion (D) a molecule
What is formed when an atom gains or loses electrons? (A) an element (B) a compound (C) an ion (D) a molecule
What materials makes up a cell membrane?
(A)phospholipids and proteins
(B)cholesterol and nucleic acids
(C)proteins, nucleic acids, and cholesterol
(D)phospholipids, cholesterol, and proteins
What materials makes up a cell membrane?
(A)phospholipids and proteins
(B)cholesterol and nucleic acids
(C)proteins, nucleic acids, and cholesterol
(D)phospholipids, cholesterol, and proteins
What type of membrane allows some, but not all, materials to cross? (A) diffusible (B) permeable (C) impermeable (D) selectively permeable
What type of membrane allows some, but not all, materials to cross? (A) diffusible (B) permeable (C) impermeable (D) selectively permeable
Which part(s) of a phospholipid is hydrophobic? (A) phosphate group and glycerol head (B) fatty acid tails (C) phosphate group only (D) the entire phospholipid molecule
Which part(s) of a phospholipid is hydrophobic? (A) phosphate group and glycerol head (B) fatty acid tails (C) phosphate group only (D) the entire phospholipid molecule
What term describes the difference in concentration of a substance from one location to another?
(A)high concentration
(B)low concentration
(C)concentration gradient
(D)molecular gradient
What term describes the difference in concentration of a substance from one location to another?
(A)high concentration
(B)low concentration
(C)concentration gradient
(D)molecular gradient
How does facilitated diffusion differ from simple diffusion? (A)Energy is needed to move molecules through the cell membrane. (B) No energy is needed to move molecules through the cell membrane. (C) Molecules diffuse through the cell membrane. (D) Molecules diffuse through transport proteins.
How does facilitated diffusion differ from simple diffusion? (A)Energy is needed to move molecules through the cell membrane. (B) No energy is needed to move molecules through the cell membrane. (C) Molecules diffuse through the cell membrane. (D) Molecules diffuse through transport proteins.
What term describes the diffusion of water through a semipermeable membrane from an area of low solute concentration to an area where there is higher solute concentration?
(A) diffusion (B) osmosis (C) Active transport
(D) Facilitated diffusion
What term describes the diffusion of water through a semipermeable membrane from an area of low solute concentration to an area where there is higher solute concentration? (A) diffusion (B) osmosis (C) Active transport (D) Facilitated diffusion
In which kind of solution would water move from the solution into the cell? (A) hypotonic (B) hypertonic (C) isotonic (D) hydrotonic
In which kind of solution would water move from the solution into the cell? (A) hypotonic (B) hypertonic (C) isotonic (D) hydrotonic
In which kind of solution would water move out of the cell and into the solution?
(A) hypotonic (B) hypertonic (C) isotonic (D) hydrotonic
In which kind of solution would water move out of the cell and into the solution?
(A) hypotonic (B) hypertonic (C) isotonic (D) hydrotonic
The molecule labeled “B” is a
A.GlycoproteinB.CholesterolC. Peripheral proteinD.Channel protein
The molecule labeled “B” is a
A.GlycoproteinB.CholesterolC. Peripheral proteinD.Channel protein
The molecule labeled “D” is a
A.Integral ProteinB.CholesterolC. Peripheral proteinD.Glycoprotein
The molecule labeled “D” is a
A.Integral ProteinB.CholesterolC. Peripheral proteinD.Glycoprotein
The molecule labeled “A” is a
A.Cell membraneB.Phospholipid bilayerC. Integral ProteinsD.Glycoprotein
The molecule labeled “A” is a
A.Cell membraneB.Phospholipid bilayerC. Integral ProteinsD.Glycoprotein
The movement of a substance from an area of high concentration to an area of lower concentration…
A. Active transport
B. Osmosis
C. Facilitated Diffusion
D. Diffusion
The movement of a substance from an area of high concentration to an area of lower concentration…
A. Active transport
B. Osmosis
C. Facilitated Diffusion
D. Diffusion
In what type of bond are electrons shared unevenly?
A. All covalent bonds
B. Polar covalent bonds
C. Non-polar covalent bonds
D. Ionic Bonds
In what type of bond are electrons shared unevenly?
A. All covalent bonds
B. Polar covalent bonds
C. Non-polar covalent bonds
D. Ionic Bonds
The cell membrane is ________ ________. This means that it allows some, but not all, materials to cross the membrane.
A. Concentration gradient
B. Selectively permeable
C. Facilitated diffusion
D. Hypertonic/Hypotonic
The cell membrane is ________ ________. This means that it allows some, but not all, materials to cross the membrane.
A. Concentration gradient
B. Selectively permeable
C. Facilitated diffusion
D. Hypertonic/Hypotonic
Where are the protons and neutrons located in an atom?
A. The electron cloud
B. The phospholipid
C. The nucleus
D. Isotopes
Where are the protons and neutrons located in an atom?
A. The electron cloud
B. The phospholipid
C. The nucleus
D. Isotopes
A solution with a pH of 10 will have…
A. More H+ ions than a solution with a pH of 5
B. The same number of H+ ions as a solution with a pH of 7
C. More OH- ions than a solution with a pH of 8
D. Less OH- ions that a solution with a pH of 8
A solution with a pH of 10 will have…
A. More H+ ions than a solution with a pH of 5
B. The same number of H+ ions as a solution with a pH of 7
C. More OH- ions than a solution with a pH of 8
D. Less OH- ions that a solution with a pH of 8
The solution surrounding the cell is ________ compared to the inside of the cell.
(a) isotonic
(b) hypertonic
(c) hypotonic
(d) hydrotonic
95% H205% Solute
75% H2025% Solute
The solution surrounding the cell is ________ compared to the inside of the cell.
(a) isotonic
(b) hypertonic
(c) hypotonic
(d) hydrotonic
95% H205% Solute
75% H2025% Solute
The cell in the diagram will...
(a)Shrink as water moves into it
(b)Swell as water moves into it
(c)Shrink as water moves out of it
(d)Swell as water moves out of it
95% H205% Solute
75% H2025% Solute
The cell in the diagram will...
(a)Shrink as water moves into it
(b)Swell as water moves into it
(c)Shrink as water moves out of it
(d)Swell as water moves out of it
95% H205% Solute
75% H2025% Solute