APHY 101 MIDTERM ACTUAL EXAM 2026: 100+ MOST-
TESTED QUESTIONS AND 100% VERIFIED ANSWERS |
GRADED A+ | GUARANTEED PASS!!
What is the difference among isotonic, hypotonic and hypertonic solutions?
ANS: A solution with the same osmotic pressure as body fluids is called isotonic;
one with higher osmotic pressure than body fluids is hypertonic; one with lower
osmotic pressure is hypotonic.
What is a hypotonic solution?
ANS: the solution has a lower solute concentration than the cell so water moves
into the cell causing plant cells to swell and animal cells to swell and burst
Define ion
ANS: When atoms gain or lose electrons, they become ions.
Define synthesis reaction
ANS: Two or more atoms or molecules are joined together
Define decomposition reaction
ANS: Larger molecules are broken down into smaller ones
Define exchange reaction
ANS: Parts of molecules trade places
Define reactant
ANS: The starting materials of the reaction - the atoms, ions, or molecules
Define product
ANS: Substances formed at the end of the chemical reaction
Define catalyst
ANS: influence the rates of chemical reactions
What is an acid?
ANS: Electrolytes that release hydrogen ions in water
, What is a base?
ANS: Electrolytes that release ions that combine with hydrogen ions in water
What is a salt?
ANS: Acids and bases that react to form water and electrolytes
What is a pH scale?
ANS: represents the concentration of hydrogen ions [H+] in solution
Neutral solution
ANS: pH 7;
indicates equal concentrations of H+
and OH-
Acidic solution
ANS: pH less than
7; indicates a greater concentration of H+
Basic solution
ANS: pH greater than 7; indicates a greater concentration of OH-
What is the difference between an organic molecule and an inorganic molecule?
ANS: organic compounds have hydrogen and carbon; inorganic compounds do not
What is dehydration synthesis and hydrolysis?
ANS: Dehydration reactions link monomers together into polymers by releasing
water, and hydrolysis breaks polymers into monomers using a water molecule.
Monomers are just single unit molecules and polymers are chains of monomers.
What are carbohydrates?
ANS: Carbohydrates provide energy for cellular activities. These molecules
contain carbon, hydrogen, and oxygen.
What is hypertonic solution?
ANS: The solution has a higher solute concentration than the cell so water moves
out of the cell and into the solution causing the cell to plasmolyze
TESTED QUESTIONS AND 100% VERIFIED ANSWERS |
GRADED A+ | GUARANTEED PASS!!
What is the difference among isotonic, hypotonic and hypertonic solutions?
ANS: A solution with the same osmotic pressure as body fluids is called isotonic;
one with higher osmotic pressure than body fluids is hypertonic; one with lower
osmotic pressure is hypotonic.
What is a hypotonic solution?
ANS: the solution has a lower solute concentration than the cell so water moves
into the cell causing plant cells to swell and animal cells to swell and burst
Define ion
ANS: When atoms gain or lose electrons, they become ions.
Define synthesis reaction
ANS: Two or more atoms or molecules are joined together
Define decomposition reaction
ANS: Larger molecules are broken down into smaller ones
Define exchange reaction
ANS: Parts of molecules trade places
Define reactant
ANS: The starting materials of the reaction - the atoms, ions, or molecules
Define product
ANS: Substances formed at the end of the chemical reaction
Define catalyst
ANS: influence the rates of chemical reactions
What is an acid?
ANS: Electrolytes that release hydrogen ions in water
, What is a base?
ANS: Electrolytes that release ions that combine with hydrogen ions in water
What is a salt?
ANS: Acids and bases that react to form water and electrolytes
What is a pH scale?
ANS: represents the concentration of hydrogen ions [H+] in solution
Neutral solution
ANS: pH 7;
indicates equal concentrations of H+
and OH-
Acidic solution
ANS: pH less than
7; indicates a greater concentration of H+
Basic solution
ANS: pH greater than 7; indicates a greater concentration of OH-
What is the difference between an organic molecule and an inorganic molecule?
ANS: organic compounds have hydrogen and carbon; inorganic compounds do not
What is dehydration synthesis and hydrolysis?
ANS: Dehydration reactions link monomers together into polymers by releasing
water, and hydrolysis breaks polymers into monomers using a water molecule.
Monomers are just single unit molecules and polymers are chains of monomers.
What are carbohydrates?
ANS: Carbohydrates provide energy for cellular activities. These molecules
contain carbon, hydrogen, and oxygen.
What is hypertonic solution?
ANS: The solution has a higher solute concentration than the cell so water moves
out of the cell and into the solution causing the cell to plasmolyze
