Answer:
There is no way to prevent biofilms from developing on surfaces
Explanation:
Biofilm formation is observed when free floating microorganisms adhere to a surface due to its extracellular polymers that gives it a structural matrix and promotes its adhesion.
Biofilms shield the bacteria, makes it more resistant to conventional antimicrobial treatments, and it pose a major health risk.
CHEMICAL MODIFICATIONS are the main technique for biofilm prevention on indwelling medical devices. Antibiotics, biocides, and ion coatings are the mostly employed as chemical techniques of biofilm prevention. They inhibit biofilm formation by disrupting the adhesion and increment of immature biofilms.
Spoilage is basically a chemical reaction and chemical reactions take place more slowly if the environment is cooler. Moreover, the microbes are also not very active at lower temperatures and are unable to spoil the food.
The order in which toxic nitrogen compounds are converted to less toxic nitrogen compounds in the nitrogen cycle is NH3 ----> NO2- -----> NO3-
The nitrogen cycle refers to the movement of nitrogen in the ecosystem. The process of converting nitrogen into less toxic forms of nitrogen which is useful to plants is called nitrification.
During the process of nitrification, ammonia or ammonium is first converted to nitrates by the action of the microorganism called nitrosomonas. Nitrobacter converts nitrites to nitrates which are useful to plants.
Hence, the order in which toxic nitrogen compounds are converted to less toxic nitrogen compounds in the nitrogen cycle is NH3 ----> NO2- -----> NO3-
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She picks up protein powder so she can make a protein shake-This represents ribosome, organelle specified for the biological protein synthesis (translation). In this case protein powder represents amino acids, structural units for the protein synthesis.
She eats part of it, and then stores the rest of it in a paper bag so she can eat it later. Paper bag in this case represents vacuole, organelle that contains molecules that have been engulfed.
Later in the day, she puts together several small packages of candies as gifts for her nieces and nephews. She labels each package and sends it through the mail
. This represents the function of the Golgi apparatus, the eukaryotic organelle that packages proteins into vesicles inside the cell before the vesicles are sent to their destination via certain patway.
