exam 2
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| What is the difference between a saprophyte and a parasite? | when organisms depend on nonliving organic matter they are saprophytes. Organisms that depend on living matter for food their parasites.
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| List three beneficial uses for yeast | - Helps make beer, wine, breads vit B protein
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| What are the conditions necessary for growth of the yeast plant? | -Grown at room Temputure or in soil, some organisms grow as saprophytic molds need warmth, moisture, food.
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| What are molds? | - Molds are multicellular, filamentous fungi.
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| What conditions are needed for growth of molds? | warmth, moisture and darkness.
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| Where are molds found? | -molds found on breads, fruits, crops, wet, dark, moist warm areas and cheese
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| What are some diseases caused by molds? | - dermatophytes (ringworm and athletes foot
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| Why are molds belonging to the penicillium genus beneficial? | -because they make up penicillin
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| What does the amoeba use for movement? What is the type of movement called? | -Amoeba is a protozoa cell, it moves by extending cytoplasmic projections called amoeboid movement . Changes shape through.
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| How do protozoa differ from fungi? | - Fungi are plants and protozoa are animals
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| Where are protozoa found? | where ever Contamination is found
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| How are protozoa categorized-according to their method of movement? | - Classified as flagellates, amebia, sporazoa, ciliophora.
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| What are parasites? | -Organisms that nourishes themselves at the expense of others living things and cause damage
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| What is a host? | - a host is what a parasite receives nourishment from.
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| what harm can parasites cause? | -with an invasion or infestation, they cause diseases known as infections
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| Give an example of a part of the body that encourages the growth of parasites, and explain why. | -mucous membranes of the nose throat and respiratory tract because it’s warm, moist and dark
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| .) Name some insects that are parasites. | -body lice, head lice, fleas, mites, and ticks.
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| How do most worms enter the body? Give some examples of parasitic worms. | - ingested as microscopic eggs in contaminated food and water and later develop. Roundworm pinworms and hookworm are some parasitic worms
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| Which of the following is a protozoan causing genital infections? | -A- Trichinosis
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| .) Cats transmit_____ to children. | -A- Toxoplasmosis
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| Pseudopodia are _______D all of the above. | - A organelles of movement b false feet c. amoeboid projections.
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| each of the following procedures that prevent s or inhibit the growth of molds. | -A= store refrigerator D= keep air tight E= sterilize by boiling C= direct sunlight
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| .) Fungi that causes deep-seated pulmonary pulmonary or lung infections include____,_______ and________ | ________ HISTOPLASMOSIS, COCCIDIODES CRYPTOCOCCUS
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| Thrush is called by_______CANDIDA ALBICANS | CANDIDA ALBICANS
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| Where are bacteria found? | - Everywhere except sterile environments
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| .) How do bacteria differ from protozoa, yeast, and molds? | - Bacteria are the smallest
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| What name is given to useful bacteria? | - Non-pathogenic bacteria.
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| How are the useful bacteria important to us? | - they are useful for decomposing and improving soil, curing tea, coffee, cocoa and leather and making yogurt, cheese, and acidophilus milk.
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| What are harmful bacteria called? What makes them harmful? | -Pathogenic bacteria, they invade plant and animal tissue, secreting toxins into the host’s tissue
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| Why is the study of bacteria so essential for the health professional? | - Because bacteria growth is the greatest cause of infections and disease.
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| What measures can be taken by the health care professional to destroy bacterial growth? | -Aseptic procedures, sterilization, disinfection, and isolation techniques
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| Why are mycoplasmas said to be pheomorphic? | -because they can be more then one shape.
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| What conditions can mycoplasma pneumonia cause? | - Respiratory disease, ranging from mild upper respiratory to severe bilateral pneumonia.
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| .) Normal flora are considered to be bacteria that_____ | -B normal inhabitants of the body
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| Opportunistic pathogens are_________ | -C organisms, do not normally cause disease in humans
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| A common sexually transmitted disease, the organism that can cause blindness in newborns is_____ | - B neisseria gonorrhea
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| Nosocomial infections are those infections. | -B originate in hospital settings, from a invasive procedure
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| Escherichia coli is most frequently found in______ | - Urinary infections
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| ______ may be a complication of group A streptococcus | - Rheumatic fever
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| Lockjaw is caused by_______ | - Clostridium tetani/ tetanus
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