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Why are mycobacteria showing coded growth cell arrangements
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- In the diagram below, identify the structures of a cyanobacterial cell based on the following descriptions: a) Outer cellular covering which includes: Mucilaginous layer – outermost layer covering the cell wall; protects the cell from harmful factors of the environment Cell wall – found just below the mucilaginous layer; 2 or 3-layered, the inner layer lies in between the outer wall layer and plasma membrane; the outer layer is made of peptidoglycan Innermost plasma membrane – selectively permeable membrane enclosing the cytoplasm b) Cytoplasm – found below the plasma membrane; the protoplasm which contains structures of different shapes and functions. Lamellae, which contain pigments such as chlorophylls, carotenes, xanthophylls, phycoerythrin and phycocyanin, are located in the peripheral region of cytoplasm. Ribosomes may also be found scattered in the cytoplasm. c) Nucleic material – the nucleoplasm that is centrally located in the cell and contains chromatin in the form…What is unusual about the mycobacterial cell wall?Why is it favorable for protozoa to replicate with schizogony versus using simple mitosis? what are the different scenarios that can occur with regards to bacterial growth within a thioglycolate tube? Explain why certain bacteria require one classification versus a different classification. A botanist has been using betaproteobacteria to grow his herb garden, because betaproteobacteria require little nutrients to grow. His garden does not grow successfully, so he comes to you for help to develop the herb garden. Which class of gram negative bacteria would you suggest and why? Why was the botanist’s original idea not going to work?
- What feature of mycobacteria is responsible for the unusually slow growth of these bacteria? They have limited numbers of ribosomes so protein production is slow. They cannot fully metabolize carbohydrates and must rely on fermentation. They lack a cell wall and are extremely fragile. The mycolic acid in their cell walls requires signification metabolic investment. Their low tolerance for oxygen retards their growth.Why do many bacteria grow over a wide range of temperature?Some bacteria possess antibiotic resistance, as well as the ability to survive through adverse conditions. Where in this type of bacteria is the DNA located? fimbriae, nucleoid, and endospore plasmids, nucleoid, and endospore nucleoid, fimbriae, and plasmids endospore, fimbriae, and plasmids
- What cellular structure protects bacteria from drying out? Peptidoglycan Glycocalyx Fimbriae Cytoplasmic membraneWhat implications does the complex hydrophobic mycobacterial cell wall have in terms of treating diseases caused by these bacteria?What features in this cell indicate that it is an actively metabolizing cell?
- Oxygen in the atmosphere is essential for human life. How can some bacteria grow in the absence of oxygen?what makes areobic or presence of oxygen conditions good for bacteria to growWhich one of the terms below is NOT a stage in the typical growth curve of a bacterial cell under ideal conditions in culture? O Exponential phase Lag phase Stationary phase Leg Phase Death Phase
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