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