Portage Biochemistry- Module 1 Exam
Questions & Answers (Grade A+)
What are three ways that biochemists study biological organisms? -
correct answer ✅Biochemists study 1) the relationship between
structure and function of biomolecules, 2) chemical reactions of
organisms (metabolism), and 3) communication within and among
organisms.
What is the definition of biochemistry? -
correct answer ✅Often referred to as the chemistry of life,
biochemistry asks how the remarkable properties of organisms
relate to their molecules.
What is another name for firefly? -
correct answer ✅lightning bug
Is Li an element common in biological organisms? -
correct answer ✅No. (See Figure 1.3 for the common elements).
What is known as the "medium of life"? -
correct answer ✅Water
What is the bond angle associated with trigonal pyramidal shape? -
correct answer ✅107.5 degrees
,Portage Biochemistry- Module 1 Exam
Questions & Answers (Grade A+)
Are transition metals commonly found in biological organisms? -
correct answer ✅Yes. They are trace elements in organisms. (See
Figure 1.3 for examples.)
True or false: Water can make up 85% (by mass) of a living organism
-
correct answer ✅True
True or false: Large elements tend to make the strongest covalent
bonds. -
correct answer ✅False. Smaller elements tend to make the
strongest bonds due to significant overlap.
Name three bulk elements. Name three trace elements. -
correct answer ✅Bulk elements (three of these): H, C, N, O, Na, P,
S, Cl, K, and Ca
Trace elements: Mg, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Se, Mo, I, and W.
The following statement is incorrect. Rewrite the statement to be
correct.
, Portage Biochemistry- Module 1 Exam
Questions & Answers (Grade A+)
Statement: Organic chemistry is the study of metal compounds,
while inorganic chemistry is the study of carbon compounds. -
correct answer ✅Organic chemistry is the study of carbon-based
compounds, while inorganic chemistry is the study of all other
compounds, including metals, minerals, and other non-organic
compounds.
Is H2O an organic molecule? How about CO2? C100H202? -
correct answer ✅Water is not organic; it does not contain carbon.
Both CO2 and C100H202 are organic compounds.
The next row of Table 1 would be the 6-carbon alkane, hexane.
Write out its chemical formula and condensed formula. -
correct answer ✅chemical formula: C6H14
condensed formula: CH3CH2CH2CH2CH2CH3
On your own paper, draw the Kekule structures and line-bond
formulas for both butane and hexane. -
correct answer ✅see drawings
How are the aldehyde and ketone functional groups similar?
Different? -
correct answer ✅Aldehdyes and ketones both have a carbon
Questions & Answers (Grade A+)
What are three ways that biochemists study biological organisms? -
correct answer ✅Biochemists study 1) the relationship between
structure and function of biomolecules, 2) chemical reactions of
organisms (metabolism), and 3) communication within and among
organisms.
What is the definition of biochemistry? -
correct answer ✅Often referred to as the chemistry of life,
biochemistry asks how the remarkable properties of organisms
relate to their molecules.
What is another name for firefly? -
correct answer ✅lightning bug
Is Li an element common in biological organisms? -
correct answer ✅No. (See Figure 1.3 for the common elements).
What is known as the "medium of life"? -
correct answer ✅Water
What is the bond angle associated with trigonal pyramidal shape? -
correct answer ✅107.5 degrees
,Portage Biochemistry- Module 1 Exam
Questions & Answers (Grade A+)
Are transition metals commonly found in biological organisms? -
correct answer ✅Yes. They are trace elements in organisms. (See
Figure 1.3 for examples.)
True or false: Water can make up 85% (by mass) of a living organism
-
correct answer ✅True
True or false: Large elements tend to make the strongest covalent
bonds. -
correct answer ✅False. Smaller elements tend to make the
strongest bonds due to significant overlap.
Name three bulk elements. Name three trace elements. -
correct answer ✅Bulk elements (three of these): H, C, N, O, Na, P,
S, Cl, K, and Ca
Trace elements: Mg, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Se, Mo, I, and W.
The following statement is incorrect. Rewrite the statement to be
correct.
, Portage Biochemistry- Module 1 Exam
Questions & Answers (Grade A+)
Statement: Organic chemistry is the study of metal compounds,
while inorganic chemistry is the study of carbon compounds. -
correct answer ✅Organic chemistry is the study of carbon-based
compounds, while inorganic chemistry is the study of all other
compounds, including metals, minerals, and other non-organic
compounds.
Is H2O an organic molecule? How about CO2? C100H202? -
correct answer ✅Water is not organic; it does not contain carbon.
Both CO2 and C100H202 are organic compounds.
The next row of Table 1 would be the 6-carbon alkane, hexane.
Write out its chemical formula and condensed formula. -
correct answer ✅chemical formula: C6H14
condensed formula: CH3CH2CH2CH2CH2CH3
On your own paper, draw the Kekule structures and line-bond
formulas for both butane and hexane. -
correct answer ✅see drawings
How are the aldehyde and ketone functional groups similar?
Different? -
correct answer ✅Aldehdyes and ketones both have a carbon
