Question

please help me (make sure the answers are correct please)

Anaerobic organisms use as the ultimate electron acceptor at the end of the electron transport chain oxygen nitrate sulfate nitrate or sulfate А Which of the following is NOT a standard guideline for the collection of patient specimens? The specimen collected should adequately represent the infectious disease A quantity of specimen adequate for complete examination should be obtained Attention must be given to specimen collection to avoid contamination by normal flora. If possible, the specimen should be obtained after antimicrobial agents have been administered to the patient so that treatment is not delayed The specimen should be forwarded promptly to the clinical laboratory. The breakdown of larger, more complex molecules into smaller, simpler ones with the release and trapping of some energy contained within those molecules is called: A anabolism. metabolism. catabolism. None of these 10. In an Ames test you study two compounds, A and B. The control plate has 5 colonies, the compound A plate has 8 colonies, and the compound B plate has 75 colonies. What can you conclude? Neither compound is mutagenic. Both compounds are mutagenic. A is mutagenic but is not. B is mutagenic but A is not Cannot conclude anything.

Answer 1

7) answer: nitrate and sulfate

in anearobic respiration molecules other than oxygen is used as ultimate electron acceptor. Both inorganic and organic compounds may be used . examples are: sulfates, nitrates, ferric iron.

8) Point D is not a standard guideline for the collection of specimens from patient. Whenever possible collect culture specimens before administration of the antimicrobial agents. other points are the standard guidelines for collection of patient samples.

9) The breakdown of larger, more complex molecules into simpler ones with the release and trapping of some energy contained within those molecules is called catabolism. It is a destructive metabolism

Anabolism : the opposite reaction of catabolism. that is the synthesis of complex molecules from simpler ones along with the storage of energy. It is a constructive metabolism

Metabolism: the set of reactions occuring in the cells of living organisms to sustain life. Thats how organisms get energy.

10) AMES TEST: it uses bacteria to test whether a chemical has the potential to cause mutations in the test organism. A positive test indicates that the chemical has mutagenic properties.

in the given question option D is the correct answer

compound B is mutagenic but A is not. Because compound B plate generated 75 colonies which is huge when compared to the control plate. Mutagenicity of chemical is proportional to number of colonies observed.