BIOL 251 Exam 1 Review (CSN - Josh Stomel) (Latest 2026 / 2027 Update) Human Anatomy & Physiology I with Lab | Questions & Certified Answers | 100% Correct - Portage Learning

BIOL 251 Exam 1 Review (CSN - Josh Stomel) (Latest 2026 / 2027 Update) Human Anatomy & Physiology I with Lab | Questions & Certified Answers | 100% Correct - Portage Learning Quiz_________________? Who is credited as the first person to discover microbes? a) John Tyndle b) Louis Pasture c) Josh Stomel d) Antony van Leeuwenhoek - Answer d) Antony van Leeuwenhoek Quiz_________________? Which of the following pieces of evidence would argue against the theory of spontaneous generation? a) All meat left uncovered will eventually produce maggots, regardless of whether or not the meat has been cooked b) When a sterile bottle of broth is sealed against the air, no microbes grow; however, when it is unsealed and exposed to air, microbes grow rapidly c) Microbial cells can grow in a wide variety of environments d) Whether or not broth grows microbes depends on how the broth was prepared - Answer b) When a sterile bottle of broth is unsealed against the air, no microbes grow; however, when it is unsealed and exposed to air, microbes grow rapidly Quiz_________________? The discovery of bacterial endospores explains why many scientists had difficulty replicating Pasture's crooked bottle experiment. True or False? - Answer True Quiz_________________? Most bacteria are pathogens. True or False? - Answer False Quiz_________________? Who is considered the father of modern microbiology? a) John Needham b) Robert Hooke c) Antony van Leeuwenhoek d) Louis Pasture - Answer d) Louis Pasture Quiz_________________? Which of the following structures would not be found in a bacterial cell? a) Nucleoid b) Mitochondria c) Ribosome d) Cell wall - Answer b) Mitochondria Quiz_________________? Which of the following statements is true for Gram+ cell walls, but false for Gram- cell walls? a) They contain lipoteichoic acid b) They are made of peptidoglycan c) They contain an outer membrane d) They are enterotoxic - Answer a) They contain lipoteichoic acid Quiz_________________? All bacteria contain a flagella. True or False? - Answer False Quiz_________________? What is the function of Gram's Iodine in a Gram stain? a) It stains the Gram positive cell walls purple b) It acts to fix the crystal violet in place so that it cannot leave the cell c) It is a counterstain d) It washes crystal violet out of Gram negative cell walls - Answer b) It acts to fix the crystal violet in place so that it cannot leave the cell wall Quiz_________________? Which of the following features could be considered virulence factors? a) Fimbria b) Nucleoid c) Glycocalyx d) Inclusion bodies e) Cell membran - Answer a) Fimbria and c) Glycocalyx Quiz_________________? Which of the following statements is true? a) Eukaryotes contain DNA chromosomes while prokaryotes do not b) Bacteria growing in a biofilm are unlikely to respond well to standard antibiotic treatment