They are the simplest form of life known, being made up of only one cell. Microbiology is the study of extremely small organisms. A) Cocci B) Streptococci C) Bacilli D) Vibrio E) Spirals. Pathogenic bacteria have characteristics known as virulence factors, which help them to parasite their hosts. The age of bacterial culture: bacterial culture with older cells (more than 24 hours) lose Gram... Read More. d) all of the above. True or false? What makes bacteria different from other organisms? A comprehensive database of more than 72 bacteria quizzes online, test your knowledge with bacteria quiz questions. Mary Hyatt from Florida on July 03, 2013: Congrats on your well deserving HOTD. Thank you for the congratulations and for such a wonderful comment, Rose! They do seem to be much more complicated than was originally thought. Which of the following is/are examples of bacterial adherence factors used by bacteria to adhere to host cells resulting in infection? Where do bacteria live? Bacteria have been around for at least 3.5 billion years, making them the oldest known life-form on the planet. Choose from the statements below. Hyperthermophilic bacteria live in extremely hot environments that have a temperature of at least 60°C (140°F). Predatory bacteria attack and kill other bacteria. What are the main similarities between cholera and typhoid? Grand Prismatic Spring, Yellowstone National Park: the orange area is made of thermophilic microbes that contain orange pigments called carotenoids. What are they, what do they do? I knew very little about bacteria and this is amazing. Humans didn’t catch a glimpse of them, though, until 1674, when Dutch scientist Antonie van Leeuwenhoek spotted tiny swimming “animacules” … c. parasitism... Why it is difficult to determine the right economic policy under the present economic conditions? A South San Francisco child enjoyed bath time at his home because of the color orange and red water. Linda Crampton (author) from British Columbia, Canada on June 16, 2013: Hi, Martie. Tough violin34 Jun 21 07 5277 plays 3. How did Robert Koch establish causation between microorganisms and disease? Insider asked veterinarians some interesting questions about dogs that you may not know the answers to. Why are some species/strains of bacteria resistant to mycobacterium bacteria? A) dental plaque B) a bacterial capsule C) elongated pili D) an oil slick E) none of these are examples of biofilms. Bacteria on average are 0.5 to 5 micrometers in size. I feel stupid, but seriously, I used to be better at Science than Math. This is an amazing, insightful article filled with valuable information about bacteria. Explain. Assume that you are viewing a Gram stained sample of vaginal discharge. Viruses are different from plants, animals, and bacteria in their structure and function. Bacteria appeared on the planet about 4 billion years ago and were the first living creatures that inhabited the Earth. c. cubical, spiral, and thread-like. Shape b. Motility c. Sensitivity to antibiotics d. All of these are used to identify bacteria. Which of the following words or phrases describes the heterotrophic bacteria, the cyanobacteria, both or neither? The flashlight fish is nocturnal. One quantu... You will work with Staphylococcus epidermidis and Bacillus megaterium. Which of the following is not a bacterial shape? a) Cell wall composition b) rRNA sequencing c) histidine synthesis mutation analysis d) composition of membrane proteins. Bacteria play a primary role in regulating biogeochemical systems. I appreciate your support here and on my Facebook page! Describe the experiment where scientists proved that a bacteriophage was the agent responsible for bacterial transduction. What makes bacteria important to the cycle of life? in history. I hope your daughter gets into the college of her choice. a. Which of the following is not true for prokaryotic cells? Some strains of this bacterium make us sick, and others make useful substances in our intestine. C. nucleoid. He also observed that if he placed a magnet next to a slide, certain bacteria always moved towards the north end of the magnet. They can invade human bodies, animals, and plants and cause diseases. The predator can swim at the amazing rate of 100 cell lengths a second, making it one of the fastest-moving of all known bacteria. 3. Provide one example of a harmful species, and one example of a harmless species, for each of the three common bacterial cell shapes. List 5 different ways bacteria are helpful to plants and humans. Home; Subjects; bacteria; bacteria. The main types of germs are fungi, virus, bacteria, and protozoa. Cows are dependent on bacteria living in their digestive systems to help break down cellulose in the plant material that they eat. Are bacteria heterotrophic or autotrophic? Bacteria are also used in most of the Antibiotics. Deinococcus radiodurans: withstand blasts of radiation 1,000 times greater than would kill a human being. I want to use something unique that most people don't think of. A) E.coli produce toxic proteins B) E.coli is only found in cows, deer, goats, and sheep C) E.coli is a common bacterium living in our intestines D)... Bacteria can get infected by a virus. The action of the membrane resembles that of an eyelid. Describe the characteristics of prokaryotes including morphology and energy production. How did the aliens die in The War of the Worlds? It is very small that you can only see it using microscope. This phenomenon is known as counter-illumination. Adjacent cells were not always the same color. In the fourth quadrant of the left side, yellow-colored bacteria grew. What are the different types of bacteria? Bacteria are tiny organisms and live in many different habitats. List how enveloped animal viruses are different from bacteriophages during both entry and release?