Stationary phase - Study guides, Class notes & Summaries

MICR 221 MIDTERM TEST QUESTIONS WITH ANSWERS ALL UPDATED! What are trace elements? - Answer-very little in media since they are present in sufficient amounts as contaminants of the major things being added to the media, cofactors for key enzymes, copper, cobalt, manganese, zinc, nickel How is the requirement for carbon, oxygen and hydrogen met? - Answer-add a single organic compound like glucose or protein What carbon source do autotrophs use; heterotrophs? - Answer-carbon dioxide; reduce...

Exam 2: BIOS 242 / BIOS242 Review (Latest 2024/ 2025 Update) Fundamentals of Microbiology with Lab| Questions and Verified Answers| 100% Correct| Grade A- Chamberlain Q: what are enzymes? Answer: biological catalysts that increase the rate of a chemical reaction Q: is needed for a reaction to occur Answer: activation energy Q: true or false: enzymes lower the activation energy Answer: true Q: enzymes act on reactant molecules known as Ans...

Binary Fission - Answer-Most common form of bacterial reproduction Binary Fission 4Basic Steps - Answer-1.Growth of cell size and increase in cell components 2.Replication of DNA 3.Division of the cytoplasm (cytokinesis) 4.Septum formation and division of daughter cells Z ring Assembly - Answer-•Cytokinesis is directed by FtsZ protein •FtsZ assembles Z ring to form divisome •Divisome activates production of peptidoglycan and septum Generation Time - Answer-•Generation Time (Doub...

Nevada State Board of Cosmetology Theory test Latest 2024 Rated A+ anagen phase Also known as growth phase; phase during which new hair is produced. Beveling Haircutting technique using diagonal lines by cutting hair ends with a slight increase or decrease in length. or A stacking tehnique single-use Disposable items cannot be used more than once Decontamination methods 2 Cleaning and Steriling Humectants Substances that absorb moisture or promote the retention of moisture. ...

In the chromatography of the reaction mixture, water absorbed on cellulose functioned as the stationary phase. What was the principal factor determining the migration of individual components in the sample? A) Hydrogen bonding B) Solute concentration C) Stationary

In the chromatography of the reaction mixture, water absorbed on cellulose functioned as the stationary phase. What was the principal factor determining the migration of individual components in the sample? A.Hydrogen bonding B.Solute concentration C.Stationary phase concentration D.Thickness of paper - correct answer B and D are dumb options. Knock them out. hydrogen bonding to the stationary phase will determine the relative rate of migration of the various components in the sample...

In the chromatography of the reaction mixture, water absorbed on cellulose functioned as the stationary phase. What was the principal factor determining the migration of individual components in the sample? A.Hydrogen bonding B.Solute concentration C.Stationary phase concentration D.Thickness of paper - The correct answer is A. This is an Organic Chemistry question that falls under the content category "Separation and purification methods." The answer to this question is A because the...

V1 - correct answers volume of phase 1 (phase being extracted) V2 - correct answers volume of phase 2 (phase doing the extracting) [S]1= - correct answers Q*m/v1 [S]2= - correct answers (1-Q)*m/v2 if [H+]> Ka - correct answers D=k if [H+]< Ka - correct answers D=0 gas-gas chromatography - correct answers won't work because gases mix solid-solid chromatography - correct answers won't work because solids don't flow Velocity of solute - correct answers Vm* (1/1+K(Vs...

CSULB ochem 223A lab final reviewTLC stationary phase - correct answer - silica gel, very fine powder; highly polar - stationary phase more polar than mobile phase TLC liquid phase - correct answer - le solvent TLC uses - correct answer - establish two compounds are identical - determine # of components in a mixture - determine the appropriate solvent for a column- chromatographic separation - check effectiveness of saperation - monitor progress of rxn TLC steps - correct answer...

Extraction - correct answers Transfer of a solute from one phase to another Eluent - correct answers Fluid entering the column Partition Chromatography - correct answers Separation based on solute dissolving into stationary liquid Ion-Exchange Chromatography - correct answers Separation based on charge, stationary phase is made of either negatively or positively charged beads Size Exclusion Chromatography - correct answers Separation based on molecular size, larger molecules elute fi...