Fimbriae - Study guides, Class notes & Summaries

diplococci - Answer-resembles berries, remains in pairs after dividing, divide on one plane streptococci - Answer-resembles berries, divide and remain in chains (don't separate) tetrads - Answer-remain in groups of 4, divide in 2 planes sarcinae - Answer-divide in 3 planes and remain in cubelike clusters of 8 staphylcocci - Answer-divide in multiple planes and form grapelike clusters single bacillus - Answer-single rod diplobacilli - Answer-a double bacillus, two being linked end to end t...

Microbiology Test Question bank With 100% Correct and Verified Answers Gram-negative bacteria used for gram reactions are not easily affected by penicillin as they: a- have more resistant endospores. b- have an impermeable out membrane. c- produce penicillinases. d- have a thick peptidoglycan cell wall. e- replicate faster. ——————————————————————————————————— Which structure protects bacteria from being phagocyt...

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...

The Female Reproductive System 1. The female reproductive system includes what internal organs? Internal organs: the ovaries, the oviducts (fallopian or uterine tubes), the uterus, and the vagina. 2. What is ovulation? How often does it occur? The release of a mature egg; occurs approximately every 28 days. 3. What is the ovarian cycle? An egg is released from the ovarian follicle. 4. What does the ovarian follicle become after ovulation? The corpus luteum. 5. What is the purpose of the...

Microbiology Exam Questions And Answers identify which of the following are external structures used primarily for direct contact interactions with other cells a ) Flagella b) Fimbriae c) Cilia d) Pili - ANSWER- PILI, Fimbriae Which of the following describes movement towards or away from light ? 1) Phototaxis 2)Chemotaxis - ANSWER- Phototaxis Which of the following bored through the stomach lining and causes gastric ulcers? a) Klebsiella pneumoniae B) Streptococcus pneumoniae...

Which of these conditions would NOT affect the ability of Streptococcus mutans to attach to teeth? - The absence of Actinomyces, a bacterium that can be part of dental plaque cell wall components - M proteins: mediates attachment and resists phagocytosis (strep. pyogenes) Opa protein: assist attachment and recept mediated endocytosis, inhibs helper t cells (n. gonorrhoeae) Mycolic acid: Waxy, resists digestion (mycobacterium TB) Pathogenicity - The ability to cause disease Virulence - the...

Biology 2420 - Final Exam Questions And Answers Living entities, surrounded by a membrane, that are capable of growing, reproducing, responding and metabolizing are known as: A) Cells B) biofilms C) bioreactors - ANS Cells ________ contain a nucleus composed of genetic material surrounded by a membrane: A) pseudo eukaryotes B) eukaryotes C) prokaryotes D) enzymes - ANS Eukaryotes ________ cells are those that do not have a membrane-bound nucleus: A) pseudo eukaryotes B)...

3 advantages of being a small cell - greater nutrient exchange, faster growth rate, higher mutation accum rate 3 features euk/prok share - cytoplasmic membrane, cytoplasm, ribosomes 3 functions of pili - surface attachment, genetic exchange, and type IV motility 3 properties of all cells - metabolism, growth, evolution 3 types of flagella and what they look like - peritrichous (on all sides), polar (one on the end), lophotrichous (multiple on end) 4 properties of only some cells - differe...

Fungi - Answer-cell wall made of chitin; Eukaryote Algae - Answer-cell wall made of silicates, eukaryotic Protozoa - Answer-Eukaryote Bacteria - Answer-Prokaryotic Virus - Answer-Acellular; only reproduce if they are inside of a living cell What allows a substance to cross a membrane - Answer-Protiens Substances that will never pass through a membrane - Answer-Charged substances Passive movement processes - Answer-No ATP needed 1. Diffusion 2. Facilitaed Diffusion 3. Osmosis Active Tr...

bacteria and food correct answers cause food borne disease, food spoilage, food fermentations, production of additives and enzymes viruses and food correct answers cause food borne disease, identification of food poisoning bacteria, failure of dairy fermentations yeasts and food correct answers cause food spoilage, food fermentations, production of additives and enzymes molds and food correct answers cause food borne disease, food spoilage, food fermentations, production of single cell ...