Tutor profile: Rachel R.
If an object is dropped from a building, then the distance it has fallen after t seconds is given by the function d=(12x)^2. Find its average speed over the interval between x=a and x=a+h .
Average speed = 24a +12h
Why are deoxyribose sugars found in DNA less reactive to hydrolysis compared to ribose sugars of RNA?
Deoxyribose and ribose sugars are chemically similar in structure except the the second (2') carbon. The 2' carbon of deoxyribose sugars lack a hydroxyl group, which prevents spontaneous hydrolysis and contributes to the strength of DNA.
Difference between Gram Negative and Gram Positive Bacteria
Gram negative bacteria have a thinner cell wall compared to Gram positive bacteria, and the surrounding membrane is also thinner. The structure of Gram negative bacteria's cell wall and membrane contributes to its enhance ability to resistant antibiotic treatments. Understanding this provides insight on how to combat Gram-negative bacterial infections that do not respond to antibiotics.
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