Organic Molecules Lab And Review: Question Preview (ID: 32285)


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The coagulation test is used to detect:
a) salts
b) sugars
c) proteins
d) fats

A positive result for the coagulation test is a:
a) red ring on top
b) white, cloudy and posibily a gel-like appearance
c) purple or violet color
d) yellowish orange color

A negative result for the silver nitrate test is a:
a) yellowish orange color
b) green color
c) cloudy, white appearance
d) clear color

A negative result of the benedict's test is a:
a) dark blue or black color
b) blue color
c) cloudy, white appearance
d) None of these

Positive test for the Biuret's test is:
a) Red ring on the top
b) A white, cloudy appearance
c) A blue color
d) a light purple (violet) color

Benedict's test for:
a) Sugars
b) Starch
c) Protein
d) Salt

Silver nitrate tests for:
a) Fats
b) Salt
c) Protein
d) Sugar

Iodine was used to test for:
a) Starch
b) Simple Sugar
c) Protein
d) Salt

The biuret's test is used to detect:
a) salts
b) starch
c) proteins
d) fats

A positive result of the benedict's test is a:
a) green color
b) white color
c) blue color
d) orange color

Organic molecules that have the same molecular formulas, but different arrangements of the atoms are
a) Mirror images
b) Isotopes
c) Isomers
d) None of these, because this cannot happen

Polypeptide chains form sheets and coils make up this structure of proteins.
a) Primary
b) Secondary
c) Tertiary
d) Quaternary

This bond occurs when the atoms donate or accept electron(s).
a) Ionic
b) Hydrogen
c) Polar covalent
d) Nonpolar covalent

This main function of this macromolecule is to provide energy to the cell.
a) Glucose
b) Nucleotides
c) Chitin
d) ATP

This type of bond holds together the double helix of DNA.
a) Polar covalent
b) Nonpolar covalent
c) Ionic
d) Hydrogen

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