CHEM 210 BIOCHEMISTRY - M1:
Problem Set Question with Correct answers
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
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. Some
plants are made up of 90% water by mass.
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: 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.
Problem Set Question with Correct answers
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
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. Some
plants are made up of 90% water by mass.
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: 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.
