PORTAGE LEARNING CHEM 210 MODULE 1
FINAL PAPER 2026 STUDY GUIDE WITH
COMPLETE ANSWER KEY
◉ What is the definition of biochemistry? Answer: The chemistry of
life. It combines biology and chemistry.
◉ Is Li an element common in biological organisms? Answer: No
◉ What is known as the "medium of life"? Answer: water
◉ Bond angle for trigonal pyramidal? Answer: 107.5
◉ Bond angle for linear? Answer: 180
◉ Bond angle for trigonal planar? Answer: 120
◉ Bond angle for tetrahedral? Answer: 109.5
◉ Are transition metals commonly found in biological organisms?
Answer: Yes, in trace amounts
,◉ True or false: Water can make up 85% (by mass) of a living
organism. Answer: True
◉ True or false: Large elements tend to make the strongest covalent
bonds. Answer: False
◉ Name three bulk elements. Name three trace elements. Answer:
Bulk: Carbon, nitrogen, oxygen.
Trace: Iron, magnesium, zinc
◉ The following statement is incorrect. Rewrite the statement to be
correct.
Statement: Organic chemistry is the study of metal compounds,
while inorganic chemistry is the study of carbon compounds.
Answer: organic chemistry is the study of carbon based compounds,
while inorganic chemistry is the study go all other compounds,
including metals, minerals, and other non-organic compounds.
◉ Is H2O an organic molecule? How about CO2? C100H202?
Answer: Water is not an organic molecule because it does not have
carbon. The other two are in fact organic molecules.
, ◉ How are the aldehyde and ketone functional groups similar?
Different? Answer: They both have a carbon double bonded to an
Oxygen arrangement (c=o) in their structure.
They differ because the ketone has both bonds connected to other
carbons, while the aldehyde has one bond that connects to a carbon
and the other to a hydrogen.
◉ what functional groups are found in glycine? Answer: amine and
carboxylic acid
◉ What are the levels of organization in cellular molecules? Answer:
Monomers, macromolecules, supramolecules
◉ A cell wall is a combination of carbohydrates and proteins. What
level of organization would this indicate and why? Answer:
Supramolecule because carbohydrates and proteins are
macromolecules, and when they combine they become
supramolecules.
◉ Examples of monomers Answer: amino acids, nucleotides,
monosaccharides (sugars)
◉ Examples of macromolecules Answer: Proteins, carbohydrates,
DNA
FINAL PAPER 2026 STUDY GUIDE WITH
COMPLETE ANSWER KEY
◉ What is the definition of biochemistry? Answer: The chemistry of
life. It combines biology and chemistry.
◉ Is Li an element common in biological organisms? Answer: No
◉ What is known as the "medium of life"? Answer: water
◉ Bond angle for trigonal pyramidal? Answer: 107.5
◉ Bond angle for linear? Answer: 180
◉ Bond angle for trigonal planar? Answer: 120
◉ Bond angle for tetrahedral? Answer: 109.5
◉ Are transition metals commonly found in biological organisms?
Answer: Yes, in trace amounts
,◉ True or false: Water can make up 85% (by mass) of a living
organism. Answer: True
◉ True or false: Large elements tend to make the strongest covalent
bonds. Answer: False
◉ Name three bulk elements. Name three trace elements. Answer:
Bulk: Carbon, nitrogen, oxygen.
Trace: Iron, magnesium, zinc
◉ The following statement is incorrect. Rewrite the statement to be
correct.
Statement: Organic chemistry is the study of metal compounds,
while inorganic chemistry is the study of carbon compounds.
Answer: organic chemistry is the study of carbon based compounds,
while inorganic chemistry is the study go all other compounds,
including metals, minerals, and other non-organic compounds.
◉ Is H2O an organic molecule? How about CO2? C100H202?
Answer: Water is not an organic molecule because it does not have
carbon. The other two are in fact organic molecules.
, ◉ How are the aldehyde and ketone functional groups similar?
Different? Answer: They both have a carbon double bonded to an
Oxygen arrangement (c=o) in their structure.
They differ because the ketone has both bonds connected to other
carbons, while the aldehyde has one bond that connects to a carbon
and the other to a hydrogen.
◉ what functional groups are found in glycine? Answer: amine and
carboxylic acid
◉ What are the levels of organization in cellular molecules? Answer:
Monomers, macromolecules, supramolecules
◉ A cell wall is a combination of carbohydrates and proteins. What
level of organization would this indicate and why? Answer:
Supramolecule because carbohydrates and proteins are
macromolecules, and when they combine they become
supramolecules.
◉ Examples of monomers Answer: amino acids, nucleotides,
monosaccharides (sugars)
◉ Examples of macromolecules Answer: Proteins, carbohydrates,
DNA
