Biol 250 exam 1 - Study guides, Class notes & Summaries

A pure culture A) is sterile. B) is a population of identical cells. C) is made of a precisely defined chemical medium. D) contains one microbial cell. Correct Answer B Microbial cells first evolved on Earth approximately ________ _______ years ago. A) 1.6 to 1.8 million B) 7.0 to 7.2 million C) 3.8 to 3.9 billion D) 10.5 to 11.5 billion E) None of the above Correct Answer C Predict how Pasteur's conclusions on spontaneous generation with swan flasks would have changed if he...

Binary Fission Correct Answer Cell division in bacteria in which one cell divides into two cells Why do bacterial cells not undergo mitosis and meiosis? Correct Answer 1) Prokaryotic cells do not possess the machinery to produce spindle fibers and therefore cannot move chromosomes around in the cell 2) Replication of DNA in a prokaryote does not occur in one phase, but instead occurs continuously 3) Most bacteria have only one circular chromosome that is attached to the cell membrane Bac...

BIOL 250 Exam 1 Latest Updated 2024 With 100% Correct Questions And Answers Electron microscopy has _________ ________ than light microscopy, because the wavelengths of electrons are much ___________ than the wavelength of visible light. A) higher resolution/smaller B) lower magnification/larger C) higher resolution/larger D) lower resolution/smaller - A Which of the following statements are false: A) Poly-β-alkanoates (PHA) such as poly-β-hydroxybutyrate (PHB) are carbon- and e...

Binary Fission Cell division in bacteria in which one cell divides into two cells Why do bacterial cells not undergo mitosis and meiosis? 1) Prokaryotic cells do not possess the machinery to produce spindle fibers and therefore cannot move chromosomes around in the cell 2) Replication of DNA in a prokaryote does not occur in one phase, but instead occurs continuously 3) Most bacteria have only one circular chromosome that is attached to the cell membrane Bacteria undergo four different phases ...

BIOL 250 EXAM 1 QUESTIONS WITH ANSWERS 2024

BIOL 250 EXAM 1 QUESTIONS WITH ANSWERS 2024

BIOL 250 Bacteriology Exam 1 well answered already passed

BIOL 250 Exam 1 Test, Study Guide, and Homework Questions With Verified Answers. A pure culture A) is sterile. B) is a population of identical cells. C) is made of a precisely defined chemical medium. D) contains one microbial cell. - answerB Microbial cells first evolved on Earth approximately ________ _______ years ago. A) 1.6 to 1.8 million B) 7.0 to 7.2 million C) 3.8 to 3.9 billion D) 10.5 to 11.5 billion E) None of the above - answerC Predict how Pasteur's conclusions on spo...

BIOL 250 HUMAN ANATOMY AND PHYSIOLOGY Fall 2023 Final Exam: Attempt Score - 93 / 100 - 93 % W16: Comprehensive Final Exam - Results Attempt Score - 93 / 100 - 93 % Question 1 1 / 1 point Which of the following are considered primary requirements of life for a multi-celled organism? Question options: Oxygen Water and other nutrients A controlled temperature in which to live A narrow range of atmospheric pressure All the above are primary requirements of life for a multi-celled or...