Biochem Final Examination 1..docx

Biochem Final Examination 1.

T/F: According to the module, a compound with a molecular mass of 1,000 g/mol is considered a
B B B B B B B B B B B B B B B B




B macromolecule. - ANS >> false B B B B




macromolecule >5,000 g/mol B B




T/F: Biomolecules can have two or more different functional groups. - ANS >> true
B B B B B B B B B B B B B




T/F: The following group is an amine.
B B B B B B




C2H5NH2 - ANS >> true B B B B




T/F: In a eukaryotic cell, the organelles called peroxisomes serve the purpose of digesting
B B B B B B B B B B B B B




B macromolecules. - ANS >> false B B B B




peroxisomes degrade dangerous/hazardous molecules, lysosomes degrade macromolecules
B B B B B B




T/F: In a eukaryotic cell, the organelles called lysosomes serve the purpose of digesting
B B B B B B B B B B B B B




B macromolecules. - ANS >> true B B B B




T/F: Carbon dioxide has a linear molecular shape AND has a bond angle of 109.5 degrees. - ANS >>
B B B B B B B B B B B B B B B B B B




B false



linear shape = 180 degrees
B B B B




Of the following, ___ is not a property of carbon.
B B B B B B B B B




Forming ionic bonds B B

, Forming cyclic structures B B




Forming multiple bonds B B




Forming bonds with oxygen B B B




Bonding in long chains - ANS >> Forming ionic bonds
B B B B B B B B B




Which of the following is an element not typically found in living organisms?
B B B B B B B B B B B B




Br

Ca

H

S

Na - ANS >> Br
B B B B




What are the functional groups found in carbohydrates? - ANS >> carbonyls (C=O)
B B B B B B B B B B B B




alcohol/hydroxyls (-OH) B




ketones

aldehydes

What is a ketone? - ANS >> carbonyl group bonded to 2 carbons
B B B B B B B B B B B B




A ___ is a chemical formula that shows how the atoms of a molecule are bonded to one another. -
B B B B B B B B B B B B B B B B B B B




B ANS >> Kekule' structure
B B B




A _____ is a chemical formula that does NOT show the C-H and C-C bonds. - ANS >> condensed
B B B B B B B B B B B B B B B B B B




B formula

A collection of two or more macromolecules uniting is called a ___. - ANS >> supramolecular complex
B B B B B B B B B B B B B B B B




An organic compound with this structure, C=C, contains a ___ functional group. - ANS >> alkene
B B B B B B B B B B B B B B B




What element has been called the superglue of the chemical world? - ANS >> carbon (C)
B B B B B B B B B B B B B B B




What molecule is the most important for energy storage in cells? - ANS >> ATP
B B B B B B B B B B B B B B