BIOLOGY 1201 EXAM 1 2026 PRACTICE PAPER
COMPLETE SOLUTIONS VERIFIED
◉ The tendency of an atom to pull electrons toward itself is referred
to as its _____.
Answer: electronegativity
◉ In this molecule, what type of bond is found between the oxygen
and hydrogens.
Answer: polar covalent
◉ Which of these bonds is weakest.
Answer: hydrogen bond
◉ Why isn't this insect drowning?.
Answer: surface tension
◉ What is the pH of an aqueous solution with the hydronium ion
concentration[H3O+] = 2 x 10-14 M ?.
Answer: 13.7
,◉ What is the molar concentration of [H3O+] in a cola that has a pH
of 3.120?.
Answer: 7.59 x 10 ^-4
◉ Acidic solution: pH < 7
Neutral solution: pH = 7
Basic solution: pH > 7.
Answer: pH scale
◉ Which molecules show an appropriate number of bonds around
each carbon atom?.
Answer:
◉ alcohol.
Answer: is polar and makes compounds more soluble in water (O-H)
◉ carboxylic acid.
Answer: acts as an acid
◉ may be a structural isomer of a ketone.
Answer: aldehyde (C=O)
, ◉ forms disulfide bonds.
Answer: thiol (S-H)
◉ amine.
Answer: acts as a base
◉ organic phosphate.
Answer: contributes negative charge
◉ L-dopa is used to treat _____..
Answer: Parkinson's disease
◉ What kind of effect does R-dopa have on Parkinson's disease?.
Answer: none
◉ structural isomers.
Answer: differ in the covalent arrangements of their atoms
◉ cis-trans isomers (geometric isomers).
Answer: differ in the arrangement of their atoms about a double
bond
COMPLETE SOLUTIONS VERIFIED
◉ The tendency of an atom to pull electrons toward itself is referred
to as its _____.
Answer: electronegativity
◉ In this molecule, what type of bond is found between the oxygen
and hydrogens.
Answer: polar covalent
◉ Which of these bonds is weakest.
Answer: hydrogen bond
◉ Why isn't this insect drowning?.
Answer: surface tension
◉ What is the pH of an aqueous solution with the hydronium ion
concentration[H3O+] = 2 x 10-14 M ?.
Answer: 13.7
,◉ What is the molar concentration of [H3O+] in a cola that has a pH
of 3.120?.
Answer: 7.59 x 10 ^-4
◉ Acidic solution: pH < 7
Neutral solution: pH = 7
Basic solution: pH > 7.
Answer: pH scale
◉ Which molecules show an appropriate number of bonds around
each carbon atom?.
Answer:
◉ alcohol.
Answer: is polar and makes compounds more soluble in water (O-H)
◉ carboxylic acid.
Answer: acts as an acid
◉ may be a structural isomer of a ketone.
Answer: aldehyde (C=O)
, ◉ forms disulfide bonds.
Answer: thiol (S-H)
◉ amine.
Answer: acts as a base
◉ organic phosphate.
Answer: contributes negative charge
◉ L-dopa is used to treat _____..
Answer: Parkinson's disease
◉ What kind of effect does R-dopa have on Parkinson's disease?.
Answer: none
◉ structural isomers.
Answer: differ in the covalent arrangements of their atoms
◉ cis-trans isomers (geometric isomers).
Answer: differ in the arrangement of their atoms about a double
bond
