Portage Learning Biochemistry Module
1 Exam 2026 | Complete Practice
Questions & Answers with Detailed
Explanations | Updated & Portage-
Aligned | A+ Guaranteed
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).
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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
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.