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Portage Biochemistry Module 1 Exam
|Final Exam Questions And Verified
Answers 2026
Definition of biochemistry - correct-answer -chemistry of life; how properties of
organisms relate to their molecules
What are the 3 things biochemists study? - correct-answer -1. The relationship
between structure and function of biomolecules
2. Chemical reactions of organisms (metabolism)
3. Communication within and among organisms
What are bulk elements? - correct-answer -Elements that are abundant in living
organisms
What are trace elements? - correct-answer -Elements that are less abundant in
organisms but still crucial for life
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Name the bulk elements (10) - correct-answer -H, Na, K, Ca, C, N, O, P, S, Cl
Name the trace elements (13) - correct-answer -Mg, V, Cr, Mn, Fe, Co, Ni, Cu, Zn,
Mo, W, Se, I
What's another word for a firefly? - correct-answer -Lightning bug
Explain the chemical reaction of lightning bugs - correct-answer -The chemical
reaction is called bioluminescence. Proteins regulate, produce, and degrade the
light-emitting compound called luciferin. Luciferin, when acted upon by a protein,
glows as bugs move. This chemical reaction is regulated by the protein (enzyme)
called luciferase.
How many naturally occurring elements exist? How many are found in living
organisms and what kind of elements? - correct-answer -90 naturally occurring
elements, less than 30 elements are found in living organisms.
Most of these 30 elements are smaller non-metals.
Why are smaller elements favored for living organisms? - correct-answer -They
can form stable, covalent bonds
Portage Biochemistry Module 1 Exam
|Final Exam Questions And Verified
Answers 2026
Definition of biochemistry - correct-answer -chemistry of life; how properties of
organisms relate to their molecules
What are the 3 things biochemists study? - correct-answer -1. The relationship
between structure and function of biomolecules
2. Chemical reactions of organisms (metabolism)
3. Communication within and among organisms
What are bulk elements? - correct-answer -Elements that are abundant in living
organisms
What are trace elements? - correct-answer -Elements that are less abundant in
organisms but still crucial for life
, 2|Page
Name the bulk elements (10) - correct-answer -H, Na, K, Ca, C, N, O, P, S, Cl
Name the trace elements (13) - correct-answer -Mg, V, Cr, Mn, Fe, Co, Ni, Cu, Zn,
Mo, W, Se, I
What's another word for a firefly? - correct-answer -Lightning bug
Explain the chemical reaction of lightning bugs - correct-answer -The chemical
reaction is called bioluminescence. Proteins regulate, produce, and degrade the
light-emitting compound called luciferin. Luciferin, when acted upon by a protein,
glows as bugs move. This chemical reaction is regulated by the protein (enzyme)
called luciferase.
How many naturally occurring elements exist? How many are found in living
organisms and what kind of elements? - correct-answer -90 naturally occurring
elements, less than 30 elements are found in living organisms.
Most of these 30 elements are smaller non-metals.
Why are smaller elements favored for living organisms? - correct-answer -They
can form stable, covalent bonds
