BIOCHEMISTRY M1, 2024/2025
WITH CORRECT/ACCURATE
ANSWERS
What is known as the "medium of life"?
Water
What are three ways that biochemists study biological organisms?
Biochemists study 1) the relationship between structure and
function of biomolecules, 2) chemical reactions of organisms
(metabolism), and 3) communication within and among
organisms.
Is Li an element common in biological organisms?
No. See Figure 1.3 for the common elements.
, What is the definition of biochemistry?
Often referred to as the chemistry of life, biochemistry asks how
the remarkable properties of organisms relate to their molecules.
True or false: Large elements tend to make the strongest covalent
bonds.
False. Smaller elements tend to make the strongest bonds due to
significant overlap.
Name three bulk elements. Name three trace elements.
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.
Differentiate between inorganic chemistry and organic chemistry.
Organic chemistry is the study of carbon-based compounds.
Inorganic chemistry is the study of all other elements.
Is H2O an organic molecule? How about CO2? C100H202?
Water is not organic; it does not contain carbon. Both CO2 and
C100H202 are organic compounds.