BACE FINAL PAPER 2025/2026 QUESTIONS WITH
ANSWERS TAGGED A+
✔✔What are the tests that show if a specific enzyme or drug is present and conducting
the expected reaction called? - ✔✔Activity assay.
✔✔What is the highly specific test to determine protein concentration based on a
particular antigen-antibody interaction? - ✔✔ELISA
✔✔Tests used for understanding the relationship between dosage and activity of a
given pharmaceutical drug are called what? - ✔✔PK/PD assays.
✔✔What are the tests for determining the presence or a particular characteristic of a
protein of interest? - ✔✔Assay.
✔✔What is an aqueous solution that yields hydrogen ion when ionized? - ✔✔Acid.
✔✔What is a solution that resists changes in pH? - ✔✔Buffer.
✔✔What is the measurement of the concentration of hydrogen ion in a sample? - ✔✔pH
✔✔What is the separation of molecules on or through a stationary phase? -
✔✔Chromatography
✔✔What is the quantitative study of electromagnetic spectra deals with visible light,
near- ultraviolet, and near-infrared light sources? - ✔✔Spectrophotometry
✔✔What is the form of liquid chromatography used to separate compounds that are
dissolved in
solution? Instruments consist of a reservoir of mobile phase, a pump, an injector, a
separation
column, and a detector. - ✔✔HPLC
✔✔What is defined as "the moles of solute per liter of solution"? - ✔✔Molarity
✔✔What is the use of an electric field to separate DNA in agarose? -
✔✔Electrophoresis.
✔✔What is the process of correcting mutations which cause genetic diseases and
disorders by delivering therapeutic DNA into a patient's cells? - ✔✔Gene therapy.
✔✔What is the use of living systems and organisms to develop or make useful
products? - ✔✔Biotechnology.
, ✔✔What is the combination of DNA from different sources in one molecule? -
✔✔Recombinant DNA.
✔✔Part of one strand of a DNA molecule has the following code: 5' ATG CCC GTG
TTA AAA TGT GGG ATC CCC GGT GTG CCC TTA 3' What is the sequence of the
antisense strand (3' to 5')? - ✔✔3' TAC GGG CAC AAT TTT ACA CCC TAG GGG CCA
CAC GGG AAT 5'
✔✔Part of a structural gene has the code 5' TAC CCC ATG GGG TAA GGC GTC 3'
What is its mRNA transcript? - ✔✔5' AUG GGG UAC CCC AUU CCG CAG 3'
✔✔Name the SI units for distance, mass, and temperature. - ✔✔Distance = Meter (M)
Mass = Kilogram (Kg) Temperature = Kelivn (K)
✔✔Define the prefix Kilo. - ✔✔One thousand (1,000)
✔✔Define the prefix centi. - ✔✔One hundredth (0.01)
✔✔Define the prefix mega. - ✔✔One million (1,000,000)
✔✔Define the prefix deci. - ✔✔One tenth (0.1)
✔✔Convert 4500 C to Kelvin. - ✔✔723.150 Kelvin (add 273.15)
✔✔How many moles are in 25 grams of water? - ✔✔1 mole H2O = 18.0 g H2O
(25 g H2O) (1 mol H2O/18.0 g H2O) = 1.39 moles
✔✔How many grams are in 4.5 moles of Li2O? - ✔✔1 mole Li2O = 29.90 g Li2O
(4.500 mol Li2O)(29.90 g Li2O/ 1 mol Li2O) = 134.6 g Li2O
✔✔How many molecules are in 23 moles of oxygen? - ✔✔1 mole oxygen molecules =
6.02 x 1023 oxygen molecules
(23.0 mol O2)( 6.02 x 1023 O2 molecules/ 1 mol O2) = 1.38 x 1025 O2 molecules
✔✔How many moles are in 3.4 x 1023 molecules of H2SO4? - ✔✔1 mole of anything =
6.02 x 1023 of anything
(3.4 x 1023 molecules H2SO4)(1 mol H2SO4/ 6.02 x 1023 molecules H2SO4) = 0.56
mol H2SO4
✔✔How many molecules are in 25 grams of NH3? - ✔✔1moleNH3 =17.0gNH3 23
1 mole of anything = 6.02 x 10 of anything
(25.0 g NH3)( 1 mol NH3/ 17.0 g NH3)( 6.02 x 1023 molecules NH3/1 mol NH3) = 8.85
x 1023 molecules NH3
ANSWERS TAGGED A+
✔✔What are the tests that show if a specific enzyme or drug is present and conducting
the expected reaction called? - ✔✔Activity assay.
✔✔What is the highly specific test to determine protein concentration based on a
particular antigen-antibody interaction? - ✔✔ELISA
✔✔Tests used for understanding the relationship between dosage and activity of a
given pharmaceutical drug are called what? - ✔✔PK/PD assays.
✔✔What are the tests for determining the presence or a particular characteristic of a
protein of interest? - ✔✔Assay.
✔✔What is an aqueous solution that yields hydrogen ion when ionized? - ✔✔Acid.
✔✔What is a solution that resists changes in pH? - ✔✔Buffer.
✔✔What is the measurement of the concentration of hydrogen ion in a sample? - ✔✔pH
✔✔What is the separation of molecules on or through a stationary phase? -
✔✔Chromatography
✔✔What is the quantitative study of electromagnetic spectra deals with visible light,
near- ultraviolet, and near-infrared light sources? - ✔✔Spectrophotometry
✔✔What is the form of liquid chromatography used to separate compounds that are
dissolved in
solution? Instruments consist of a reservoir of mobile phase, a pump, an injector, a
separation
column, and a detector. - ✔✔HPLC
✔✔What is defined as "the moles of solute per liter of solution"? - ✔✔Molarity
✔✔What is the use of an electric field to separate DNA in agarose? -
✔✔Electrophoresis.
✔✔What is the process of correcting mutations which cause genetic diseases and
disorders by delivering therapeutic DNA into a patient's cells? - ✔✔Gene therapy.
✔✔What is the use of living systems and organisms to develop or make useful
products? - ✔✔Biotechnology.
, ✔✔What is the combination of DNA from different sources in one molecule? -
✔✔Recombinant DNA.
✔✔Part of one strand of a DNA molecule has the following code: 5' ATG CCC GTG
TTA AAA TGT GGG ATC CCC GGT GTG CCC TTA 3' What is the sequence of the
antisense strand (3' to 5')? - ✔✔3' TAC GGG CAC AAT TTT ACA CCC TAG GGG CCA
CAC GGG AAT 5'
✔✔Part of a structural gene has the code 5' TAC CCC ATG GGG TAA GGC GTC 3'
What is its mRNA transcript? - ✔✔5' AUG GGG UAC CCC AUU CCG CAG 3'
✔✔Name the SI units for distance, mass, and temperature. - ✔✔Distance = Meter (M)
Mass = Kilogram (Kg) Temperature = Kelivn (K)
✔✔Define the prefix Kilo. - ✔✔One thousand (1,000)
✔✔Define the prefix centi. - ✔✔One hundredth (0.01)
✔✔Define the prefix mega. - ✔✔One million (1,000,000)
✔✔Define the prefix deci. - ✔✔One tenth (0.1)
✔✔Convert 4500 C to Kelvin. - ✔✔723.150 Kelvin (add 273.15)
✔✔How many moles are in 25 grams of water? - ✔✔1 mole H2O = 18.0 g H2O
(25 g H2O) (1 mol H2O/18.0 g H2O) = 1.39 moles
✔✔How many grams are in 4.5 moles of Li2O? - ✔✔1 mole Li2O = 29.90 g Li2O
(4.500 mol Li2O)(29.90 g Li2O/ 1 mol Li2O) = 134.6 g Li2O
✔✔How many molecules are in 23 moles of oxygen? - ✔✔1 mole oxygen molecules =
6.02 x 1023 oxygen molecules
(23.0 mol O2)( 6.02 x 1023 O2 molecules/ 1 mol O2) = 1.38 x 1025 O2 molecules
✔✔How many moles are in 3.4 x 1023 molecules of H2SO4? - ✔✔1 mole of anything =
6.02 x 1023 of anything
(3.4 x 1023 molecules H2SO4)(1 mol H2SO4/ 6.02 x 1023 molecules H2SO4) = 0.56
mol H2SO4
✔✔How many molecules are in 25 grams of NH3? - ✔✔1moleNH3 =17.0gNH3 23
1 mole of anything = 6.02 x 10 of anything
(25.0 g NH3)( 1 mol NH3/ 17.0 g NH3)( 6.02 x 1023 molecules NH3/1 mol NH3) = 8.85
x 1023 molecules NH3
