BIO 101 LAB MIDTERM UNC PRACTICE
EXAMINATION 2026 QUESTIONS
WITH ANSWERS GRADED A+
◍ what is the role of nucleic acids.
Answer: stores genetic information and sometimes store energy
◍ codenser.
Answer: Contains a lens system that focuses light onto the specimen
◍ word proven in experiments infers that...
Answer: it infers that there is no need for further investigation
◍ surface area should be _______ than volume.
Answer: larger/bigger than volume for efficacy.
◍ proteins contain.
Answer: amino group and carboxyl group
◍ Lugol's Test.
Answer: tests for the presence of starch (potato slice)
◍ cocci.
Answer: spherical bacteria
◍ monomer and polymer for carbohydrate.
Answer: monosaccharide, polysaccharide
◍ what did we do in lab #3?.
Answer: we did an experiment to see what antacid medication was the most
efficient. we did this to practice with acids and bases.
◍ how many copies of DNA does a strawberry have?.
Answer: it has 8 copies compared to 2 copies in the human body cells
, ◍ If a cell (0.2% Na) was in a solution (0.4% Na), what tonicity does the
solution have?.
Answer: Hypertonic
◍ gram negative is what color.
Answer: pink
◍ Benedict's test.
Answer: a simple biochemical reaction to detect the presence of reducing
sugars.
◍ concentration gradient.
Answer: difference in the concentration of a substance from one location to
another
◍ atomic mass.
Answer: Number of protons and neutrons
◍ what molecules are involved in a catalytic reaction?.
Answer: - catalyst itself - reactants - products - sometimes cofactor and
coenzymes
◍ field of view.
Answer: the visible area of the specimen seen through the eyepiece of a
compound microscope
◍ A red blood cell in a hypertonic solution would.
Answer: shrink
◍ what color is Lugol's before and after the presence of a starch ?.
Answer: its brown and turns black
◍ Smaller the % error, the more/less accurate the measurement..
Answer: more accurate
◍ hydrogen bond.
Answer: weak attraction between a hydrogen atom and another atom
◍ Molar solution.
EXAMINATION 2026 QUESTIONS
WITH ANSWERS GRADED A+
◍ what is the role of nucleic acids.
Answer: stores genetic information and sometimes store energy
◍ codenser.
Answer: Contains a lens system that focuses light onto the specimen
◍ word proven in experiments infers that...
Answer: it infers that there is no need for further investigation
◍ surface area should be _______ than volume.
Answer: larger/bigger than volume for efficacy.
◍ proteins contain.
Answer: amino group and carboxyl group
◍ Lugol's Test.
Answer: tests for the presence of starch (potato slice)
◍ cocci.
Answer: spherical bacteria
◍ monomer and polymer for carbohydrate.
Answer: monosaccharide, polysaccharide
◍ what did we do in lab #3?.
Answer: we did an experiment to see what antacid medication was the most
efficient. we did this to practice with acids and bases.
◍ how many copies of DNA does a strawberry have?.
Answer: it has 8 copies compared to 2 copies in the human body cells
, ◍ If a cell (0.2% Na) was in a solution (0.4% Na), what tonicity does the
solution have?.
Answer: Hypertonic
◍ gram negative is what color.
Answer: pink
◍ Benedict's test.
Answer: a simple biochemical reaction to detect the presence of reducing
sugars.
◍ concentration gradient.
Answer: difference in the concentration of a substance from one location to
another
◍ atomic mass.
Answer: Number of protons and neutrons
◍ what molecules are involved in a catalytic reaction?.
Answer: - catalyst itself - reactants - products - sometimes cofactor and
coenzymes
◍ field of view.
Answer: the visible area of the specimen seen through the eyepiece of a
compound microscope
◍ A red blood cell in a hypertonic solution would.
Answer: shrink
◍ what color is Lugol's before and after the presence of a starch ?.
Answer: its brown and turns black
◍ Smaller the % error, the more/less accurate the measurement..
Answer: more accurate
◍ hydrogen bond.
Answer: weak attraction between a hydrogen atom and another atom
◍ Molar solution.
