BIO 250 MICROBIOLOGY FINAL EXAM 2026
FINAL REVIEW BUNDLED SOLUTION PACKAGE
◉ Pasteur's Contributions. Answer: Louis Pasteur developed the
principles of vaccination, microbial fermentation, and pasteurization.
◉ Lister's Contributions. Answer: Joseph Lister introduced antiseptic
surgical techniques to reduce infections.
◉ Chemical Bonds. Answer: Forces that hold atoms together in
molecules, including ionic, covalent, and hydrogen bonds.
◉ pH. Answer: A measure of the acidity or basicity of a solution,
ranging from 0 (acidic) to 14 (basic).
◉ Macromolecules. Answer: Large complex molecules essential for life,
including proteins, nucleic acids, carbohydrates, and lipids.
◉ Functional Groups. Answer: Specific groups of atoms within
molecules that determine the characteristics and chemical reactivity of
those molecules.
◉ Purines and Pyrimidines. Answer: Nitrogenous bases in nucleic acids;
purines include adenine and guanine, while pyrimidines include
cytosine, thymine, and uracil.
, ◉ DNA. Answer: Deoxyribonucleic acid, the molecule that carries
genetic information in living organisms.
◉ RNA. Answer: Ribonucleic acid, a molecule involved in protein
synthesis and gene expression.
◉ Genotype. Answer: The genetic constitution of an individual,
representing the alleles inherited from parents.
◉ Phenotype. Answer: The observable physical or biochemical
characteristics of an organism, determined by its genotype.
◉ Cell Membrane Structures. Answer: The lipid bilayer that forms the
outer boundary of cells, controlling the movement of substances in and
out.
◉ Gram Positive Bacteria. Answer: Bacteria that retain the crystal violet
stain used in the Gram staining procedure, appearing purple under a
microscope.
◉ Gram Negative Bacteria. Answer: Bacteria that do not retain the
crystal violet stain and appear pink, characterized by a thin
peptidoglycan layer.
FINAL REVIEW BUNDLED SOLUTION PACKAGE
◉ Pasteur's Contributions. Answer: Louis Pasteur developed the
principles of vaccination, microbial fermentation, and pasteurization.
◉ Lister's Contributions. Answer: Joseph Lister introduced antiseptic
surgical techniques to reduce infections.
◉ Chemical Bonds. Answer: Forces that hold atoms together in
molecules, including ionic, covalent, and hydrogen bonds.
◉ pH. Answer: A measure of the acidity or basicity of a solution,
ranging from 0 (acidic) to 14 (basic).
◉ Macromolecules. Answer: Large complex molecules essential for life,
including proteins, nucleic acids, carbohydrates, and lipids.
◉ Functional Groups. Answer: Specific groups of atoms within
molecules that determine the characteristics and chemical reactivity of
those molecules.
◉ Purines and Pyrimidines. Answer: Nitrogenous bases in nucleic acids;
purines include adenine and guanine, while pyrimidines include
cytosine, thymine, and uracil.
, ◉ DNA. Answer: Deoxyribonucleic acid, the molecule that carries
genetic information in living organisms.
◉ RNA. Answer: Ribonucleic acid, a molecule involved in protein
synthesis and gene expression.
◉ Genotype. Answer: The genetic constitution of an individual,
representing the alleles inherited from parents.
◉ Phenotype. Answer: The observable physical or biochemical
characteristics of an organism, determined by its genotype.
◉ Cell Membrane Structures. Answer: The lipid bilayer that forms the
outer boundary of cells, controlling the movement of substances in and
out.
◉ Gram Positive Bacteria. Answer: Bacteria that retain the crystal violet
stain used in the Gram staining procedure, appearing purple under a
microscope.
◉ Gram Negative Bacteria. Answer: Bacteria that do not retain the
crystal violet stain and appear pink, characterized by a thin
peptidoglycan layer.
