Micro Biology ch. 2- study questions

what type of bond holds these atoms together a hydrogen atom of one nucleotide to a nitrogen or oxygen atom of another nuclotide

hydrogen bond

what type of chemical reaction is this ATP = ADP or ADP = ATP

reversible reaction

What type of molecule is this HNO3= H+ + NO-3

salt

what type of molecule is this NaOH= Na+ + OH-

salt

what type of bond holds these atoms together carbon and oxygen atoms in methanol

single covalant bond

what type of chemical reaction is this: glucose + fructose = Sucrose + H2O

synthesis reaction

The optimum PH of Thibacillus bacteria (PH3) is ____ times more acid than blood (PH 7)

1000

which of the following is an organic molecule

F2C= Cf2

bacteria use the enzyme urease to obtain nitrogen in a form they can use to form urea in the following equation: CO ( NH2)2 +H2O = 2NH3 + CO2 ( urea) (ammonia) ( carbon Dioxide) What purpose does the enzyme serve in this reaction? What type of reaction is this?

The enzyme lowers the activation energy reaction for the reaction and therefore speeds up this decomposition reaction

The best definition for ATP is that it is

a molecule that supplies energy to do work

What type of molecule is this MgSo4= Mg2+ + So2-4

acid

what type of molecule is this H2SO4= 2H+ + SO2_

acid

what is a chemical element

atoms with the same aomic number and chemical behavior are classified as chemical elements

Assume E. Coli bacteria are grown in a nutrient medium containing the radioisotope 16N. After a 48- hour incubation period the 16N would most likely be found in the E. Colis

carbohydrate

classify the following sub units as either carbohydrate,lipid,protein, or nucleic acid. C6H12O6

carbohydrate

what type of chemical reaction is this lactose = glucose + glactose

decompostion reaction

what type of bond holds these atoms together oxygen atoms in O2

double covalant bond

what type of chemical reaction is this NH4Cl + H2O = NH4OH + HCL

exchange reaction

what type of bonds hold these atoms together Li+ and Cl- in LiCl

ionic

classify the following sub units as either carbohydrate,lipid,protein, or nucleic acid. CH3----(CH2)7------CH= CH -- (CH2)7 -----COOH

lipd

If Pseudomonas bacteria are supplied with radioactivity labeled cytosine, after a 24- hour incubation period this cytosine would most likely be found in the cells

lipids

classify the following sub units as either carbohydrate,lipid,protein, or nucleic acid. thymine nucleotide

nucleic acid

If E.Coli were grown in a medium containing the radioactive isotopes 32P the 32P would be found in all of the following molecules of cells execpt

plasma membrane