BMSC 210 Midterm 1 | 100% Correct Answers | Verified | Latest 2024 Version

What are some properties of all cells? - Growth, metabolism, and evolution What are properties of some cells? - differentiation, communication, genetic exchange, motility What domain of life do marcroorganisms belong to? - Eukarya How did the diversity of life arise? - Through evolution Which encoding gene was/is slow to evolve? - The gene encoding the small ribosomal subunit in both eukarya (18S) and Bacteria/Archaea (16S) Which domain is archaea most closely related to? - Eukarya How is the phylogenetic tree created? - By analyzing DNA sequences from each organism Which two domains of life are prokaryotic? - Bacteria and Archaea What were the ancestors of multicellular organisms? - Eukaryotic microorganisms What were the first two domains that diverged from LUCA? - Bacteria and Archaea What did Archaea diverge into? - Eukarya and Archaea What did Robert Hooke do and when? - Wrote the first book devoted to microscopic observations in 1665What did Anton van Leeuwenhoek do and when? - He was the first to see bacteria in 1676 What did Ferdinand Cohn do and when? - He was the first to see bacterial endospores, around the 1850s What did Louis Pasteur do and when? - Disproved spontaneous generation theory in 1864 -also developed vaccines for rabies, anthrax, and chicken cholera, around 1885 What did Pasteur use to disprove spontaneous generation theory? - A swan shaped flask What is number one of Koch's postulates? - The suspected pathogen must be present in everything with the disease and absent from healthy animals What is number two of Koch's postulates? - The suspected pathogen must be grown in a pure culture What is number three of Koch's postulates? - The pure culture from the suspected pathogen must cause disease in a healthy animal What is number four of Koch's postulates? - The suspected pathogen must be reisolated and shown to be the same as the original What is one of the effects of studying microbes? - Deaths from infectious diseases have drastically decreased What does staining a microscope slide do? - Improves contrast between features What is the power of light microscopy limited by? - Resolutio