Question

BIO 244 (October 28, 2018) 1. The composition of phytone in bacteriological media is usually known as a) Animal, b) Plant, c) Protozoan 2. The Seitz bacteriological filter employs an pad a) Metal, b) Asbestos, c) Paper 3. Microorganisms are not ubiquitous because they cannot be isolated from the ocean floor or from ice-capped mountaintops a) True, b) False 4. The higher the altitude, the lower the temperature and pressure needed to sterilize by autoclaving a) True, b) False. 5. A small amount of liquid bacterial culture used to transplant a culture into sterile media is a)Colony, b) Inoculum, c) Broth 6. Transferring a bacterial culture from one sterile tube to the other is known as a) Sterile transfer, b) Aseptic transfer, c) Inoculum transfer 7. The ova of Taenia saginata infect human; a) True, b) False. 8. A hydratid cyst is approximately the same size as tapeworm cysticercus. a) True, b) False. 9. Some of the bacterial colonies are convex elevated in shape. a) True, b) False 10. In a liquid culture a well dispersed growth of bacteria is known as; a) Sediment, b) Pellicle, c) Turbid The protozoans are lacking the cell a) Membrane, b) Wall, c) Mitochondria. 11. 12. The shape of the Bacillus genus of bacteria is; a)Circular, b) Rodlike,c) None of the above A pure colony can arise from more than one mother cell; a) True, b) False. 13. 14. The unique organelle, apicoplast contains its own 15. 16, 17. Clonorchis sinensis parasitizez the 18. In human, the- 19. Parasitic pinworm found in human belongs to phylum a) RNA, b) DNA, c) None of the above. The malarial parasite carry through a) Male, b) Female, c) Both a) and b) The microbe flatworms belongs to phylum a) Arthopoda, b) Platyhelmenthes, c) Protozoa Anopheles mosquito. of human a) Small intestine, b) Large intestine, c) Stomach. a) Liver, b) Kidney, c) Heart is the most common site of hydatid cysts. a) Arthopoda, b) Nematoda, c) Pteridophyta.

Answer 1

1. The composition of phytone in bacteriological media is usually known as plant material . Phytone bacteriological media is made papaic digest of soybean flour /meal . It is a non animal source .

2. The Seitz bacteriological filter employs an asbestos pad.

3. False , microorganisms are ubiquitous . Ubiquitous means existing everywhere. Microorganisms are present nearly everywhere even in the ordinary areas as well as in extreme locations .

4.True ,The higher you go , the lower the atmospheric pressure. Boiling water at this elevation occurs at lower temperature because it takes less heat to boil the water.It is much easier for liquid water to go into water vapour because the pressure above the liquid is much less. The higher the altitude ,the lower the temperature and pressure needed to sterilize by autoclave .