ORG CONCEPTS Flashcards
The two strands of DNA are said to be
A. oppositely charged
B. complementary
C. identical
D. partners
B. complementary
The amino acid sequence of a polypeptide chain comprises the _____ structure of the protein.
A. primary
B. secondary
C. tertiary
D. quarternary
A. primary
An amino acid with a polar R group
A. Cysteine
B. Phenylalanine
C. Leucine
D. Valine
A. Cysteine
“polar R group”
An amino acid with a basic R group
A. Alanine
B. Arginine
C. Proline
D. Glutamine
B. Arginine
An amino acid that is electrically neutral at pH5
A. Aspartic acid
B. Histidine
C. Glycine
D. Threonine
C. Glycine
An amino acid that will move towards the cathode at pH10
A. Glutamic acid
B. Tyrosine
C. Lysine
D. Valine
C. Lysine
A test for the presence of benzene ring in protein
A. Biuret
D. Xanthoproteic
D. Xanthoproteic
Protein present in bones
A. collagen
B. fibroin
C. elastin
D. keratin
A. collagen
Protein in grains
A. lactalbumin
B. myosin
C. leucasin
D. globulin
globulin
Simple protein in blood
A. edestin
B. fibrinogen
C. myosin
D. glutenin
B. fibrinogen
An alkaloidal reagent that is used in the treatment of burns
A. tannic acid
B. picric acid
C. phosphotungstic acid
D. phosphomolybdic acid
A. tannic acid
“TAN” = burns
A conjugated protein with colored pigment
A. chromoprotein
B. glycoprotein
C. nucleoprotein
D. phosphoprotein
A. chromoprotein
“CHROMO” = color
The Xanthoproteic test is a test for the presence of …
A. Tryptophan
B. Serine
C. Tyrosine
D. Threonine
C. Tyrosine
A color test for protein that uses glyoxylic acid as reagent
A. Millons
B. Xanthoproteic
C. Hopkins Cole
C. Hopkins Cole
A dipolar ion formed when amino acid undergoes self protonation
A. anion
B. cation
C. Zwitter ion
D. AOTA
C. Zwitter ion
DNA is the genetic material of the cells. The building block of DNA are:
A. amino acids
B. monosaccharides
C. disaccharides
D. nucleotides
D. Nucleotides
Enzymes are molecules that speed up chemical reactions. All enzymes are
A. carbohydrates
B. nucleic acids
C. proteins
D. lipids
C. proteins
When proteins are broken down by enzymes, the products are:
A. amino acids
B. carbohydrates
C. fatty acids
D. nucleic acids
A. amino acids
A nucleotide contains _____.
A. sulfur
B. nitrogen base
C. 6-carbon sugar
D. all of the above
B. nitrogen base
Which of the following vitamins are all fat soluble.
A. ABCD
B. ACDE
D. ADEK
D. BCDE
D. ADEK
Defficiency of this vitamin will cause scurvy.
A. Vit A
B. Vit B
C. Vit C
D. Vit D
vitamin C
Vitamin B6 is also known as,
A. Niacin B. Pyridoxin C. Thiamin D. Rivoflavin
B. Pyridoxin
A vitamin that function as an antioxidant.
A. Vit A B. Vit B C. Vit C D. Vit D
vitamin C
Phylloquinone is commonly known as,
A. Vit B3 B. Vit K C. Vit F D. Vit H
B. Vit K
The nucleotide of DNA have __________ bases.
A. purine B. pyrimidine C. either A or B D. neither A or B
C. either A or B
The preparation of alkyl halide that obeys Markovnikovs Rule
A. Hydrogenation
C. Hydrohalogenation
B. Halogenation
D. Hydration
C. Hydrohalogenation
addition of alkyl halide to alkene
The solvent used for the preparation of Grignard reagent.
A. Alcohol C. Acid
B. Ether D. Ester
B. Ether
Which of the following alcohol will react faster with HBr?
A. n-butanol
C. 2-butanol
B. 2-methyl-1-propanol
D. 2-methyl-2-propanol
A. n-butanol
The enzyme that aids in the fermentation of sugar to alcohol.
A. Diastase
C. Maltase
B. Zymase
D. Glucosidase
B. Zymase
Which method is not used in the preparation of simple alcohol.
A. Hydration of alkenes
C. Fermentation of sugar
B. Hydrolysis of alkyl halides
D. Oxidation of alkenes
D. Oxidation of alkenes
produce carbonyls
The method of preparation that gives high percentage of alcohol.
A. Diborane method
C. Sulfonation
B. Hydrolysis
D. Reduction
B. Hydrolysis
A toxic compound formed by distillation of ethylene glycol.
A. Diethylene glycol
C. Ethylene oxide
B. Diethyl ether
D. Dioxane
C. Ethylene oxide
Which compound has the highest density?
A. Fluorobutane
C. Chloropentane
B. 2-methyl-1-iodopentane
D. Bromohexane
B. 2-methyl-1-iodopentane
high molecular weight + presence of halogens = high density
Alcohol act as an acid if it reacts with;
A. HBr
C. K
B. CH3ONa
D. NaOH
D. NaOH
A reaction of ester that will produce another ester.
A. Alcoholysis
B. Ammonolysis
C. Hydrolysis
D. Ozonolysis
D. Ozonolysis
A soap use for water proofing.
A. Ag soap
B. Al soap
C. Cr soap
D. Cu soap
B. Al soap
A soap used as dusting powder.
A. Al palmitate
B. Cu oleate
C. K laurate
D. Zn stearate
D. Zn stearate
A soap used for treating ulcer.
A. Al palmitate
B. Cu oleate
C. K laurate
D. Zn stearate
C. K laurate
An ester used as banana flavoring.
A. ethylmethanoate
B. methylpentanoate
C. pentylethanoate
D. octylethanoate
C. Pentylethanoate
or isoamyl acetate
An inorganic ester that lowers blood pressure.
A. ethyl nitrate
B. ethyl sulfate
C. pentyl nitrate
D. glyceryl trinitrate
D. glyceryl trinitrate
The flavor imparted by isoamyisovalerate.
A. Apple B. Banana C. Pear D. Pineapple
A. Apple
An aldehyde that smells like green apple.
A. Methanal
B. Ethanal
C. Propanal
D. Butanal
B. Ethanal
or aldehyde
A ketone with ethereal fragrance.
A. Methanone
B. Ethanone
C. Propanone
D. Butanone
D. Butanone
The test for the presence of methyl carbonyl.
Haloforms
An organic salt used as dye fastener.
A. Al ethanoate
B. Ca stearate
C. Fe butyrate
D. Na chloride
D. Na chloride
A colorless and poisonous gas with an unpleasant odor.
A. Acrolein
B. Acrilan
C. Crotonaldehyde
D. Ketene
A. Acrolein
The primary source of alkanes.
A. Petroleum B. Marsh gas C. Natural gas D. Biomass
A. Petroleum
The study of the three dimensional structure of molecules.
A. Nomenclature B. Stereochemistry C. Structural theory D. Isomerism
B. Stereochemistry
Thermal decomposition of alkanes.
A. Hydrogenation B. Combustion B. Oxidation C. Pyrolysis
C. Pyrolysis
Which of the alkanes below has the lowest boiling point
A. n-pentane
B. isopentane
C. neopentane
D. Sec-pentane
A. n-pentane
Electrovalent bond
ionic = greater than 1.7
coordinate covelent bond
formed when one atom donates both electrons to a bond, while the other atom contributes none.
The electron acceptor in CH3NO2
A. C B. N C. O D. H
D. H
Electron Acceptors: In a molecule, an electron acceptor is typically an atom that has a higher electronegativity or can stabilize a negative charge effectively.
The electron donor in H2SO4
A. H
B. O
C. S
D. NOTA
B. O
Electron Donors: An electron donor is typically an atom or a group of atoms that can provide electrons to another atom or molecule.
The formal charge of P in H3PO3
A. +2
B. +1
C. 0
D. -1
C. 0
phosphorous acid
The structure of SO2 molecule.
A. linear B. planar C. tetragonal D. tetrahedral
B. Planar
has a lone pair = not tetrahedral
direct reserve source of enerrgy in the human muscle is
glycogen
Ethyl butanoate is an artificial flavor for
A. apple C. orange
B. banana D. pineapple
D. pineapple
The aldehyde used as preservative.
A. Butanal C. Ethanal
B. Propanal D. Methanal
D. Methanal
Freon is an example of
A. hydrocarbon C. alcohol
B. alkyl halide D. aldehyde
B. alkyl halide
Rubbing alcohol is an example of
A. normal alcohol C. secondary alcohol
B. primary alcohol D. tertiary alcohol
C. secondary alcohol
The hydrocarbon used as reference in measuring the quality
of gasoline.
A. n - hexane C. n - pentane
B. n - heptane D. n - octane
B. n - heptane
The alcohol present in all drinking liquor.
A. Methyl alcohol C. Isopropyl alcohol
B. Ethyl alcohol D. Amyl alcohol
B. Ethyl alcohol
An organic compound with pleasant odor.
A. Aldehyde C. Ester
B. Alcohol D. Ether
C. Ester
The number of structural formulas possible for the alkyne C6H10.
A. two C. four
B. three D. five
C. four
