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What makes the Amanita phalloides toxins so harmful that even one cap can kill an adult?
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- Which part of tobacco plant is infected by meloidigyne incognita?Why does Helicobacter pylori cause ulceractions in the lining of the Stomach? 1)The microbes secrete a toxin that prevents the host from detecting invasion of the microbe and thus allows it to thrive in the stomach and damage the host cells. 2)After invasion of the microbe in the cells lining the stomach, they are no longer able to produce mucous to protect the host cells from acid erosion 3)The microbe produces an enzyme that causes the cell to produce potent digestive enzymes that erode the stomach lining. 4)Once the microbe has entered the stomach, it releases digestive enzymes that degrade the mucous secreting cells.MEDICALLY SIGNIFICANT ALGAE (answer the following) EXAMPLE: Aexandrium Spp MICROBIAL PROFILE MICROORGANISM/ CAUSATIVE AGENT GRAM REACTION OXYGEN REQUIREMENT SIZE SHAPE HABITAT DISCOVERY Alexandrium Spp (-) Length 20 - 48 µm, width 18 - 34 μm Spherical Coastal, estuarine, oceans Egyptian researcher discovered a red tide along the coast of the Alexandria harbour in Egypt.
- Why is Plasmodium species isolated usually in blood? What is the purpose of the thick and thin blood smear? What are the characteristics of a good quality malarial smear?Abimbola's great grandfather was a member of the Fore tribe of Papua New Guinea that practiced cannibalism. He would often burst into laughter and have the shakes. He had Kuru. c) Describe the aetiologic agent of Kuru d) Discuss management and prevention of Kuru.What disease is stichodactyla toxin used to treat?
- What is the possible role of the axostyle in the pathogenesis of trich?Why might the Yersinia pestis from a patient with pneumonic plague be more dangerous than the same organism from fleas?A 4-year-old boy presents to his pediatrician with intense perianal itching. His mother explains that the child has also been extremely irritable during the day and has not been sleeping well at night. Eggs with a flattened side were identified by the laboratory technician from a piece of scotch tape brought in by the parent. Infection with which of the following organisms is most likely? Select one: a. Ascaris lumbricoides b. Trichinella spiralis c. Trichiuris trichiura d. Strogyloides stercoralis e. Enterobius vermicularis