AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

CLONING GENES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Oil sludge and straw or woodchips can be composed as long as the microbes have the right amount of
A
moisture
B
air
C
nitrogen
D
all of the above
Explanation: 

Detailed explanation-1: -Bacteria can break down oil to carbon dioxide and water. However, no single organism can break down all the components of crude oil or refined fuels spilled into the environment. The tens of thousands of different compounds that make up oil can only be biodegraded by communities of microorganisms acting in concert.

Detailed explanation-2: -Bioremediation relies on stimulating the growth of certain microbes that utilize contaminants like oil, solvents, and pesticides for sources of food and energy. These microbes convert contaminants into small amounts of water, as well as harmless gases like carbon dioxide.

Detailed explanation-3: -pH affects the solubility and biological availability of nutrients, metals, and other constituents; for optimal bacterial growth, pH should remain within the tolerance range for the target microorganisms (ESTCP 2005). Bioremediation processes preferentially proceed at a pH of 6-8 (ICSS 2006).

Detailed explanation-4: -Solution : Microbes are used for bioremediation of environment polluted due to sewage.

There is 1 question to complete.