Earlier biochemists called substrate cycles “futile cycles.” Why might they have chosen such a name? Why is it something of a misnomer?
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A:
Earlier biochemists called substrate cycles “futile cycles.” Why might they have chosen such a name? Why is it something of a misnomer?
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- Why do microorganisms grow more slowly as the pH deviates from their optimum growth?Although nonpolar compounds tend to dissolve and remain in fatty tissues, polar substances are more water soluble, and more readily excreted into an environment where they may be degraded by other organisms. Explain why methoxychlor is more biodegradable than DDT.How does pH influence the growth of microbes? Why do microbes grow best at a particular pH and not at all pHs?
- Most living organisms cannot survive at temperature above 450C. How are some microbes able to live in habitats with temperatures exceeding 1000C?Please give a short description of the following terms: Toposequence, Biosequence, Climosequence, Lithosequence, ChronosequenceWhy do some bacteria grow in the presence of salts?
- Two cultures of a facultative anaerobe are grown in the same medium, but one culture is exposed to air and the other is maintained under anaerobic conditions. Which of the two cultures will contain more cells at the end of a week? Why?How do effects of pH, salt composition, and solute valence on partitioning of bioproducts compare in organic-solvent and aqueous two-phase extraction?Besides being able to tolerate a range of pH some bacteria change their environment by producing acid or alkali substances. How would you use microbiological media to determine a change in the pH of culture media due to metabolic activities of bacteria? GIVE DETAILED ANSWER PLEASE
- Why are microbial cells negatively charged? Why are clay particles negatively charged? How can microbes attach to clay particles if they are both negatively charged? How can microbes access large complex cellulose polymer molecules for intracellular metabolism?Microbes are found mostly in topsoil, but some are found miles deep in bedrock. Nutritionally, how do deeply buried microbes survive?Why we use glutaraldehyde in production of biomaterials ? What can we use instead of glutaraldehyde?