Endosymbiotic theory - Study guides, Class notes & Summaries

Bio 189 Midterm Study Guide Questions and Answers Rated A+ What role do telomeres play in cellular aging? Telomeres protect the ends of chromosomes from deterioration or fusion with neighboring chromosomes, and their shortening during cell division is associated with cellular aging and limit the number of times a cell can divide. Describe how the structure of the phospholipid bilayer contributes to its function. The phospholipid bilayer's hydrophilic (water-attracting) heads face...

Microbiology UTA 2460 Chapter 3 Latest Version 100% Pass 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 ne...

Not very many proteins in the eukaryotic cytoplasmic membrane. Where did they go? - Answer-They are still in the membrane and they are still busy, but most of the proteins went to the mitochondrial membrane in eukaryotes. Cellulose and Chitin - Answer-Use specific b-1,4-glycosidic bonds between sugars provides strength and rigidity. In algae Fungi - Cell Wall - Answer-You have a NAG in chitin for cell walls in fungi. The cell wall is all NAGs Cytoskeleton Function - Answer-Involved in intr...

Edward Jenner - Developed small pox immunization using cowpox agent Paul Ehrlich - sought a " magic bullet" to destroy pathogens Alexander Fleming - discovered penicillin Joseph Lister - Pioneered aseptic surgery John Snow - father of epidemiology (cholera in London) Ignaz Semmelweis - Pioneered asepsis by discovering that hand washing prevented streptococcal infections in obstetric patients Robert Koch - Pioneered the cultivation of bacteria on solid media Louis Pasteur -...

The length of a bacterium such as Escherichia coli is approximately a. 1 µm = 0.001 mm b. 10 µm = 0.01 mm c. 100 µm = 0.1 mm CORRECT ANSWER a. 1 µm = 0.001 mm Lactobacillus spp. are classified in phylum a. Actinobacteria b. Firmicutes c. Proteobacteria CORRECT ANSWER b. Firmicutes According to the endosymbiotic theory a. chloroplasts evolved from members of phylum Cyanobacteria b. mitochondria evolved from members of phylum Euryarchaeota c. endoplasmic reticulum evolved ...

ASU BIO 181 EXAM 1 2024 WITH 100% CORRECT ANSWERS The 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 primitiv...

MICROBIOLOGY: 13TH EDITION REAL EXAM QUESTIONS COMBINED LATEST UPDATE 2023/2024 1) In the condition called athlete's foot, the fungus Trichophyton consumes the keratin protein found in hair, nails, and dead skin. Which of the following descriptors does not apply to Trichophyton? A) Saprobe B) Parasite C) Heterotroph D) Eukaryote 2) Which of the following statements is correct? A) All fungi, whether parasiteor saprobe, are heterotrophs. B) All heterotrophs are parasites, but on...

Which of the following is/are shared by all cells? a) Mitochondria b) Endoplasmic Reticulum c) Nucleus d) Cell Membrane - correct answer d) Cell Membrane Which of the following best supports the endosymbiotic theory? a) Mitochondria synthesize ATP b) Chloroplasts and mitochondria both use host cell ATP synthases for energy generation c) Chloroplasts synthesize glucose d) Chloroplasts and mitochondria both maintain their own unique DNA - correct answer d) Chloroplasts and mitoc...

IB Biology Paper 1 Questions And Answers Already Passed Prokaryote or Eukaryote in paramecium? Compartments in the cell indicates that it's a eukaryote Property of water which makes it suitable for living? Thermal Watson and Crick discovery about DNA DNA is double helix What occurs in meiosis but not in mitosis? Homologous chromosomes pair up Variation within a population Fertilization and mutation properties of stem cells they can differentiate phospholipid bilayer the...

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...