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- 1) give detail note ( giving points ) on three generation of photosensitizer (PSS) with example and also highlight the role of third generation photosensitizer . [ please refer research paper to give answer at end end of the answer please write the DOI number ]Pregunta 7 Diluting a culture of bacteria to detemine the cancentration OC) Generally not required for well-established E. ull cultures O (D) Both A and B are correct O A) Performed on a liquid bacterial culture to determine the type of organism present O (B) Involves the use of spread plating Pregunta 8 Preparing a cell extract O (B) May involve the use of a detergent O (D) A-C are correct OWs done to prepare a sample for chromatography O (C) May involve the use of an enzyme Pregunta 9 Preparing a cell extract as we did in class O A Resulted in a cell extract with all denatured proteins pok O (C) Both B and D are correct O (B) Involved SDS orm oring O (D) Resulted in a cell extract that maintalned protein tertiary structures TeamsA mature amoebae cyst that has four ring-like nuclei could be a) Entamoeba histolytica b) Entamoeba coli c) Entamoeba dispar d) Entamoeba gingivalis
- What cell types would be able to grow on the ECM in the following situations? F- , Hfr , Mix a) Streptomycin was not added to the ECM. b) The ECM contains thiamine. c) The ECM contains all 20 amino acids and all 5 nitrogenous nucleic acid basesImagine that you are asked to design a surface (BUT ONLY SURFACE)pasteurization process of eggs. What would be your solution?5
- In a population of cyanobacteria (Chlorogloeopsis fritschii) in a hot spring in Iceland, some of the bacteria can produce chlorophyll f, while some C. fritschii produce only other types of chlorophylls. Chlorophyll f absorbs light outside of the visible light spectrum, namely near infrared light, allowing the bacteria to absorb light that has not been absorbed or reflected by the water or other organisms. The ability to produce chlorophyll f is heritable, and the bacteria with chlorophyll f can live in low-light environments, such as underneath other organisms, or near the bottom of the light-penetrating zone of the spring. What is the adaptation in this population of C. fritschii living in low-light environments? (Choose one.) a) the ability to produce chlorophyll f b) the ability to produce any type of chlorophyll c) the ability to tolerate the high temperatures of the hot spring d) the ability to survive and reproduceWrite down the purpose of producing fluorescent fish.Explain and give insight why the use of a face shield protect us against COVID 19, and now it is no longer required around the world, we can recycle and reuse this into a useful product that can also benefit the environment by reducing plastic pollution
- 6. A valid question for Jim's next experiment would be? a) is strawberry production different in lime treated vs. normal (unacidic) soil? b) Does Jim really like strawberries? c) Are strawberries always red? d) Will strawberries be available in the market? 7. Your tire blew out on the way coming to this exam. What would your hypothesis for the cause of the blowout be? a) A nail pricked into the tire b) The weather was bad c) Your dog chewed on the tire d) Tires are made to blow out 8. A scientist testing the affects of a chemical on apple yield sprays an orchard with the chemical. A second orchard does not receive the chemical. In the fall, the number of apples harvested from each forest is counted. Which of the following is the independent (manipulated) variable in the experiment? a) chemical b) Number of apples c) First orchard d) Second orchard 9. Sitting in class sweating profusely, you notice that the door seems to be closed every time you perspire in class. This is most closely…7. Which of the following is mismatched? a) Increased UVC radiation — CFCs b) Acid rain — nuclear power plant c) Prevents O2 transport — CO d) Greenhouse gas— CO2 e) Greenhouse gas — CH4 8. The persistent danger of temperature inversions is a) they may occur over heavily populated cities or industrial areas; b) they permit the effluent to concentration; c) with sunlight there is time for photochemical smog to develop; e) vertical air movement is stopped; e) all of the above. Please answer asap and type your answer and do not copy from anywhere please answer should not be palgarisedYou count 54 colonies of bacteria on an agarp late on which you spread 0.2ml of a 10^-4 (or 1/10,000) dilution of soil. Claculate how many colony forming units of bacteria are present. (A) 2700000 (B) 0.0027 (C) 2.6 * 10^-6 (D) 108,000