BIOLOGY 1201 EXAM 4 2026 ASSESSMENT
SCRIPT QUESTION BANK DETAILED RESPONSES
◉ A water molecule can bond to up to _____ other water molecules by
____ bonds.
Answer: 4 .... hydrogen
◉ Part complete
The unequal sharing of electrons within a water molecule makes the
water molecule _____.
Answer: polar
◉ 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
SCRIPT QUESTION BANK DETAILED RESPONSES
◉ A water molecule can bond to up to _____ other water molecules by
____ bonds.
Answer: 4 .... hydrogen
◉ Part complete
The unequal sharing of electrons within a water molecule makes the
water molecule _____.
Answer: polar
◉ 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
