Protozoan life cycle q what prokaryotic survival

Info icon This preview shows pages 9–15. Sign up to view the full content.

View Full Document Right Arrow Icon
Protozoan Life Cycle Q: What prokaryotic survival skill does this remind you of? From the Virtual Microbiology Classroom on ScienceProfOnline.com
Image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Inflammatory disorder of the intestine, especially the colon, that results in severe diarrhea containing mucus and/or blood in the feces. Untreated, dysentery can be fatal due to massive dehydration. Can be caused by bacteria, protozans or parasitic worms. Image: Source Unknown Disease, Please : ________________ From the Virtual Microbiology Classroom on ScienceProfOnline.com
Image of page 10
Pathogenic species that feed off the intestinal lining. Infection results from eating food / drinking water contaminated by the organism - usually from feces. A large number generates inflammation, which causes nausea, stomach ache and diarrhea. Chronic infestation may result in malnourishment, blocking absorption of food across their intestinal wall. Protozoan Species : _________ __________ Images: Public Health Image Library, ( PHIL) #11649; #11632 & #3394 From the Virtual Microbiology Classroom on ScienceProfOnline.com
Image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
• A type of _________. Eat and move by extending parts of their bodies to form pseudopods (SUE-dough-pods). Exists asymptomatically in 10% of world’s population. • When disease develops, can be fatal (kills 100,000 annually). Feeds on the lining of the gut. Irritation created can lead to condition known as amoebic dysentery. Contracted by eating or drinking fecally contaminated food or water. Protozoan Species : ___________ ___________ Image: E. histolytica spore , CDC; E. histolytica life cycle , Mariana Ruiz; E. histolytica trophozoite, CDC From the Virtual Microbiology Classroom on ScienceProfOnline.com
Image of page 12
2. __________ Heterotrophic (consumers) digest their food externally , secrete digestive enzymes and then absorb nutrient molecules into their cells. Examples: yeasts, molds, and mushrooms. Often have important symbiotic relationships with other organisms, mainly plants . (Plants photosynthesize and provide carbon to the fungi in return for nutrients that fungi take up from the soil). Fungi are also used extensively by humans: yeasts responsible for fermentation of beer & bread mushroom farming is big industry produce some antibiotics ~30% can cause disease in plants, animals & humans. Pathogenic fungi very resistant to antimicrobial drugs. Fungi and bacteria are the primary decomposers of organic matter. Images: Fungi Collage , Borgqueen, Wiki, Creative Commons From the Virtual Microbiology Classroom on ScienceProfOnline.com
Image of page 13

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Fungal Infections Also called ____________. If you have ever had athlete's foot or a yeast infection , you can blame a fungus. A fungus is actually a primitive vegetable. Mushrooms, mold and mildew are examples. Reproduce through tiny spores in the air. You can inhale the spores or they can land on you. As a result, fungal infections often start in the lungs or on the skin.
Image of page 14
Image of page 15
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern