BT503 Quiz 1

BT503 QUIZ-1 SOLVED

1. Biological system may be used to clean up pollutants which of the following attributes must be present in the pollutants. It should be highly toxic
2. Halophiles are extremely important in environment biotechnology these are microorganisms that survive in highly saline environment . they do so by ensuring that-----. Their cytoplasm contains a higher concentration of solutes then their surroundings
3. Glyphosate ( herbicide) is analyze of phosphenol pyruvate and inhibits the enzyme, the plants that gave the best result were --------. Petunias

4. Lichens are used as bioindicators to monitor -------- quality. Air

5. Microorganisms are now being used for the removal of pollutants from environment . all of the following statementsin this regards are true except- ------. The tolence degradation pathway and p-cumate catabolic pathway are coded by genes present on the same operon.

6. In bacteria genetic transfer of materials occurs through --------. Plasmids

7. Which statement about endocrine disrupters is true------. Feminization of male fish has occurred due to increased levels of oestrogen in water ways,
8. Plants have been produced using the Ti plasmid transfer system of the bacterium. Agrobacterium tumefaciences
9. The plant pathogen that is used to increase the resistance of plant to disease is ----------. Erwinia Carotovora
10. Living organisms may be used to define the characteristics of biosphere , those that are used to get quantitative information on the quality of the environment are known as ---------. Biomonitors
11. The removal of pollutants by plant that breaking down into compounds that can be vaporized is known as -------. Degradation, phytovolatislation, phytosorption
12. Planktons are often used as indicator of water pollution, many planktons reproduce at increased rate in lakes when there are high centralization of -- ----. Phosphorus and nitrogen