CHEM 210 BIOCHEMISTRY LATEST EXAM THIS YEAR WITH WELL DETAILED QUESTIONS AND VERIFIED ANSWERS FOR 100% PASS

CHEM 210 BIOCHEMISTRY
LATEST EXAM THIS YEAR WITH
WELL DETAILED QUESTIONS
AND VERIFIED ANSWERS FOR
100% PASS
Question-How many of the 90 naturally occurring elements are found in living organisms? -
Answer-less than 30 (small nonmetal in upper right of the table)


Question-smaller vs larger element bonds - Answer-smaller elements are favored because they
can form stable covalent bonds (strong), the larger elements do not form stable covalent bonds


Question-What elements is critical to all living things and is found in large amounts? - Answer-
Carbon


Question-Organic vs inorganic chemistry - Answer-organic-study of carbon based compounds,
inorganic- study of compounds typically not containing carbon


Question-Carbon - Answer--has 4 valence electron permitting it to form 4 bonds
-forms long chains
-forms double and triple bonds
-forms ring compounds (cyclic compounds)
forms bonds w many other atoms including H, N, and O
Question-What are three ways that biochemists study biological organisms? - Answer-among-the
relationship between structure and function of biomolecules
-chemical reactions of organisms (metabolism)
-communication with and among organisms

,Question-What is biochemistry? - Answer-the chemistry of life


Question-Molecular arrangements - Answer-linear= 180 degrees
trigonal planar= 120 degrees
trigonal pyramidal= 107.5 degrees
tetrahedral= 109.5 degrees
bent= 104.5 degrees
Question-Alkanes - Answer-Straight chain compounds with only carbon and hydrogen


Question-chemical and compounds formulas of the - Answer-methane= CH4, CH4
ethane= C2H6, CH3CH3
propane= C3H8, CH3CH2CH3
butane= C4H10, CH3CH2CH2CH3
pentane=C5H12, CH3CH2CH2CH2CH3
hexane=C6H14, CH3CH2CH2CH2CH2CH3
heptane=C7H16, CH3CH2CH2CH2CH2CH2CH3
*starting from CH4 add one carbon and two hydrogens in the chemical formula and add one
CH2 in each with CH3 on both ends


Question-Four ways to draw organic molecules - Answer-chemical formula, condensed formula,
Kekule formula, and line bond formula


Question-Functional group - Answer-Specific arrangement of atoms in a compound that define
the chemistry of the molecule and control the properties of the compound


Question-Alkene - Answer-carbon-carbon double bond


Question-Alkyne - Answer-carbon-carbon triple bond

,Question-Alcohol - Answer-R-OH


Question-Aldehyde - Answer-CHO (double bond btwn C and O)


Question-Amide - Answer-CNO (double bond btwn C and O)


Question-Amine - Answer-R-NH2


Question-Aromatic (benzene) - Answer-carbon ring with alternating double bonds


Question-carboxylic acid - Answer-R-COOH


Question-Thiol - Answer-R-SH


Question-Biomolecule - Answer-molecules that are part of the cell or molecules that are excreted
by the cell


Question-monomers and polymers - Answer-amino acid= protein
sugar= carbohydrate
nucleotide=DNA


Question-Supramolecular complexes - Answer-Collections of two or more macromolecules, self
assembly, attractions btwn the macromolecules, molecular recognition


Question-Cell shape/size - Answer-Most range from 1 to 100 microns
human nerve cells can be 40 in in length
some cells are spherical, rod-shaped, and some are cube like
all cells are defined by a plasma membrane that separates life from non life

, Question-Categorization of cells - Answer-By morphology:
-prokaryotes= bacterial
-eukaryotes= human
By phylogeny:
-prokaryotes= bacterial, live in soil, water, intestines and skin
-archaea=hot springs, extreme environments like hot springs, acidic bogs, and the ocean floor
-eukaryotes= human


Question-cytoplasm - Answer-entire volume of the cell


Question-cytosol - Answer-aqueous solution


Question-nuceloid - Answer-localized area made up of the bacterial chromosomes with its
proteins


Question-genome - Answer-complete set of genes for the organism


Question-ribosomes - Answer-protein RNA complexes that make proteins


Question-metabolies - Answer-small organic molecules


Question-metabolome - Answer-collection of metabolies


Question-organelles - Answer-small compartments for specialized functions


Question-rough ER - Answer-structure that synthesize and processes proteins


Question-smooth ER - Answer-structure that forms lipids