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- I am a gram-negative bacteria, only a chemoheterotroph, a pathogen and spiral shaped. What am I? Group of answer choices Spirochetes Proteobacteria Gram-positive bacteria CyanobacteriaWhich of the following statement/s is/are true about gram negative bacteria Cell wall has thin peptidoglycan layer Cell wall lipid content is very low Lipopolyscharride layer is present All of the aboveWhich of the following statement/s is/are true about gram positive bacteria Cell wall has thick peptidoglycan layer Cell wall lipid content is very low Lipopolyscharride layer is absent All of the above
- A type of cell wall that is often toxic. Question options: a) gram-positive b) gram-negative c) acid-fast d) mycoplasmaWhich of the following is the most resistant to destruction bychemicals and heat?a) Bacterial endosporesb) Fungal sporesc) Mycobacterium tuberculosisd) E. colie) HIVWhich of these word parts means “higher”, or “elevated” or “advanced”? Proto- An- Eu- Which of these microbes are the smallest? Mycoplasma Amoeba Rickettsia Which of these types of microbes has the most complex cell? Bacteria Viruses Protozoa A bacteria cell which is longer than it is wide is classified as: Vibrio Coccus Bacillus Bacteria which normal colonize the human gut are classified as: Anaerobes Pathogens Aerobes A bacteria which absolutely needs oxygen to live is classified as: Obligate anaerobe Obligate aerobe Facultative anaerobe The structure on this list which will NOT be found in any bacterial cell is: Cytoplasm Flagella Nucleus The genetic information of bacteria cell is contained in the: Capsid Nucleoid Ribosomes The genetic material of a virion is called the: Genome Nucleoid Nucleus
- Bacteria can best survive low pH and dryness by producing ____________. Group of answer choices Endospores Capsules Endotoxin CytotoxinsFill in the blank: The cell wall of bacteria is made-up of the polysaccharide ______________________. Gram negative bacteria have ____________________ cell wall than Gram positive bacteria.True or False Exposure of bacterial cells to antibiotics: 50s is disrupted 60s is disrupted 80s is normal sturdy cell wall
- Which of the following reports bacteria counts as colony-forming units? Turbidity Most probable number Standard plate count Microscopic countsSomeone comes in to the hospital with an infection. The infection does not respond to antibiotics, and the organism is too small to see when viewed under the microscope, even smaller than a bacterium. What is the most likely cause of the illness? Bacteria Virus Fungus ProtozoanWhich type of bacteria survive more easily in dry environments? Question 4 options: gram positive gram negative gram variable gram equal none of these are correct