Endosymbiotic - Study guides, Class notes & Summaries

A bilayer with a short and unsaturated hydrocarbon tail has what permeability and what fluidity? - ️️High fluidity and high permeability A general function of all cellular membranes is to - ️️Regulate which materials can enter or leave the cell. A molecule that binds to the particular three-dimensional structure of a receptor site is known as a - ️️Ligand. A prokaryotic cell lacks a _____ and a _____ . - ️️nucleus; membrane-bound organelles. A protein kinase Cascade can ampli...

The length of abacterium such as Escherichia coliis approximately CORRECT ANSWER 1 μm = 0.001 mm Lactobacillusspp. are classified in phylum CORRECT ANSWER Firmicutes According to the endosymbiotic theory CORRECT ANSWER chloroplasts evolved from members of phylum Cyanobacteria ______ identifies what genes are expressed in a community. CORRECT ANSWER Metatranscriptomics The most abundant phyla in the human gut microbiome are CORRECT ANSWER Bacteroidetes and Firmicutes ______ is a c...

ASU Bio 181 Exam 1The association of ribosomes with _____ invaginations would support the _____ theory. - correct answer membrane, endomembrane After a cell is pancake shaped in a cell culture dish, the order of events that occurs as a cell walks is? - correct answer filapodia, lamellipodia, cell muscle, retraction fiber T/F It is presumed that the peroxisomes evolved in these primitive, proto-eukaryotes to remove oxygen, which was toxic to the primitive cells. - correct answer true T/F...

The association of ribosomes with _____ invaginations would support the _____ theory. - membrane, endomembrane After a cell is pancake shaped in a cell culture dish, the order of events that occurs as a cell walks is? - filapodia, lamellipodia, cell muscle, retraction fiber T/F It is presumed that the peroxisomes evolved in these primitive, proto-eukaryotes to remove oxygen, which was toxic to the primitive cells. - true T/F In an extant prokaryotic cell the outer boundary of life is the c...

_____ are typically expressed under all conditions and are not subject to regulation. A) Housekeeping genes B) Homologous genes C) Bacterial genomes D) Eukaryotic genomes E) Endosymbiotic genes - Answer-A) Housekeeping genes ____pathways _____ large molecules, _____ energy. A) Catabolic; break down; releasing B) Anabolic; break down; releasing C) Catabolic; break down; storing D) Anabolic; break down; storing E) Anabolic; build up; releasing - Answer-A) Catabolic; break down; releasin...

spontaneous generation : ancient belief: life can arise from nonliving matter Key scientists of spontaneous generation : Francesco Redi, John Needham, Lazzaro Spallanzani Francesco Redi : This scientist disproved spontaneous generation by showing that maggots do not spontaneously arise from decaying meat. John Needham : Believed there was a life force that caused spontaneous generation Lazzaro Spallanzani : replicated redi and needham's experiments, disproved of spontaneous generatio...

Desc Micro bio examines... - ️️How microbes interact with humans and food and how they can be used by humans Endosymbiotic theory - ️️Primitive prokaryotic microbes ingested other microbes, starting a symbiotic relationship forming the first basic eukaryotes Mitochondria resulted from microbes that use oxygen to produce energy Chloroplasts resulted from microbes that could use light energy to make carbon dioxide ribe Bacteria - ️️Usually single-celled Majority have cell walls ...

Developed smallpox immunization using cowpox agent - Edward Jenner Sought a "magic bullet" to destroy pathogens & not host - Paul Ehrlich Discovered penicillin - Alexander Fleming Pioneered aseptic surgery, Prevented surgical infections by using mists of phenol - Joseph Lister Father of Epidemiology (Cholera in London) - John Snow Pioneered asepsis by discovering that hand washing prevented streptococcal infections in obstetric patients - Ignaz Semmelweis Pioneered the culti...

BIO 181 Exam 1Advantages of being multicellular - correct answer 1. labor distribution 2. longer lifespans Endosymbiotic Theory - correct answer theory that eukaryotic cells formed from a symbiosis among several different prokaryotic organisms Disadvantages of being multicellular - correct answer 1. need more food 2. if one organ fails the who organism can fail lack of biomolecular machines - correct answer limits a cell from becoming more complex Single-celled eukaryote organism - c...

IB Biology Study Practice Test. What does it mean to be alive? (7) - CORRECT ANSWER - maintain homeostasis - respond to stimuli - adapt and evolve over time - ability to reproduce - growth and development - uses nutrition (metabolizes) - excretes waste Totipotent stem cells - CORRECT ANSWER Unlimited capability and have the ability to form the embryo *Source:* zygote Pluripotent stem cells - CORRECT ANSWER Capable of developing into every cell *Source:* Blastocyst Multipote...