The source of the oxygen atom used in formation of the water in aerobic respiration is (C) molecular oxygen (O₂).
Water has the chemical formula H₂O. It makes up approximately 60% of a human's body. It is also an end product of the cellular respiration. It is also considered to be the universal solvent. The body essentially requires water to perform all of its functions.
Aerobic respiration is the breakdown of glucose to yield energy in the form of ATP in the presence of oxygen. All the aerobic organisms follow this mode of respiration. the by-products of the respiration and carbon dioxide and water.
Bacterial conjugation is the bacterial counterpart of sexual reproduction. Also known as horizontal gene transfer, it involves the transfer of genetic material from one F+ or Hfr bacterium to another F+ or F- bacterium.
The F or fertility factor is a crucial component of the bacterial plasmid and it accounts for the development of sex pili which are important for conjugation. An F+ cells contains the F-factor incorporated into its plasmid, whereas an F- cell lacks the F-factor and therefore cannot participate in conjugation.
Conjugation between an F+ and F- cell can result in the transfer of the F-factor to the F- bacterium.
An Hfr bacterium contains F-factor incorporated into its circular genome.
