37- To cultivate fungi, a selective medium such as is ideal due to its low pH th

Question

37- To cultivate fungi, a selective medium such as is ideal due to its low pH that inhibits bacterial growth. a. Sabouraud agar b. Nutrient agar c. Mueller Hinton II d. None of the above c. 38- Molds have microscopic intertwining filaments called a. Hyphae b. Septae c. Basidiomycetes 39- Many media in microbiology are called defined media because A. the exact composition of the individual amino acids, vitamins, growth factors, and other components are not exactly known B. the exact composition of the individual amino acids, vitamins, growth factors, and other components are exactly known C. Both A and B are correct D. Both A and B are incorrect 40- Media can be made with components that will allovw certain bacteria to grow but will inhibit others from growing. Such a medium is a A. selective medium B. defined medium C. a differential medium D. a solid agar medium 41-Chemolitotrophs organisms A. oxidize inorganic ions such as nitrate or iron to obtain energy B. conta energy into chemical e C. derive their energy needs from organic molecules by fermentation or respiration D. derive their energy from photosynthesis but their carbon needs from growth on organic molecules in photosynthetic pigments that convert solar ncrgy 42- The exosporium found in endospores is composed of A. peptidoglycan B. protein C. phospholipids D. none of the above

Explanation / Answer

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37 a sabouraud agar. The acidic ph of 5 inhibits bacterial growth

38 a hyphae. These are multicellular filaments

39 B the exact composition of the individual amino acids, vitamins, growth factors and other componens are exactly known

40 A selective media. Inhbitory substances are present which will not allow other bacteria to grow

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