1|Page
BIL 255 Final Exam Questions With Complete
Solutions
1. Phospholipids with short or unsaturated fatty acyl
chains? a) decrease membrane fluidity b) increase
membrane fluidity c) cause bio membranes to become
thicker d) allow hydrophilic molecules to diffuse across
the lipid bilayer - ....ANSWER ....✔✔ b) increase
membrane fluidity.
2. Glycolipids and glycoproteins are especially
abundant in the a) nucleus b) mitochondrial inner
membrane c) cytosol d) plasma membrane - ....ANSWER
....✔✔ d) plasma membrane.
3. Active transport requires the input of energy into a
system to move solutes against their electrochemical and
concentration gradients. Which of the following is not
one of the common ways to perform active transport? a)
Na+-coupled b) K+-coupled c) ATP-driven d) light-
driven - ....ANSWER ....✔✔ d) light-driven
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4. Which of the following occur without coupling
transport of the solute to the movement of a second
solute? a) import of glucose into gut epithelial cells b)
export of Ca2+ from the cytosol c) export of H+ from
animal cells for pH regulation d) export of Na+ from
cells to maintain resting membrane - ....ANSWER
....✔✔ d) export of Na+ from cells to maintain
resting membrane potential.
5. Movement of phospholipids from one leaflet to the
other? a) occurs routinely b) requires cholesterol c)
requires flippases d) is impossible - ....ANSWER
....✔✔ c) requires flippases.
6. Active transport requires the input of energy into a
system to move solutes against their electrochemical and
concentration gradients. Which of the following is not
one of the common ways to perform active transport? a)
Na+-coupled b) K+-coupled c) ATP-driven d) light-
driven - ....ANSWER ....✔✔ d) light-driven.
Which detection method is best suitable to visualize
mitochondria? - ....ANSWER ....✔✔ transmission
electron microscopy
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The limit of resolution is dependent on.... - ....ANSWER
....✔✔ wavelength properties and numerical
aperture.
The African killifish is used to...... - ....ANSWER ....✔✔
study mechanisms of aging.
Cell and molecular biology often includes characteristics
from which of the following disciplines? - ....ANSWER
....✔✔ biochemistry
molecular genetics
biomechanics
molecular biology
All of the above
The motor protein, kinesin, uses ATP hydrolysis to alter its
shape allowing it to walk along_______? - ....ANSWER
....✔✔ microtubules in cells
Proteins fold into a specific conformation because..... -
....ANSWER ....✔✔ they adopt a lower energy state.
, 4|Page
Michaelis and Menton worked out..... - ....ANSWER
....✔✔ enzyme kinetics
Eukaryotic cells are distinct from prokaryotes
because_____ - ....ANSWER ....✔✔ the presence of
organelles
The three scientists Osamu Shimomura, Martin Chalfie,
and Roger Tsien received a nobel prize for ______. -
....ANSWER ....✔✔ the discovery of fluorescent
proteins
The free energy released by the hydrolysis of cellular
ATP is used by cells______ - ....ANSWER ....✔✔ to
synthesize cellular macromolecules like DNA, RNA, and
proteins
for movements of motor proteins
to power enzymatic reactions
to alter protein conformation
Prokaryotes that are not bacteria are.... - ....ANSWER
....✔✔ Archaea
BIL 255 Final Exam Questions With Complete
Solutions
1. Phospholipids with short or unsaturated fatty acyl
chains? a) decrease membrane fluidity b) increase
membrane fluidity c) cause bio membranes to become
thicker d) allow hydrophilic molecules to diffuse across
the lipid bilayer - ....ANSWER ....✔✔ b) increase
membrane fluidity.
2. Glycolipids and glycoproteins are especially
abundant in the a) nucleus b) mitochondrial inner
membrane c) cytosol d) plasma membrane - ....ANSWER
....✔✔ d) plasma membrane.
3. Active transport requires the input of energy into a
system to move solutes against their electrochemical and
concentration gradients. Which of the following is not
one of the common ways to perform active transport? a)
Na+-coupled b) K+-coupled c) ATP-driven d) light-
driven - ....ANSWER ....✔✔ d) light-driven
,2|Page
4. Which of the following occur without coupling
transport of the solute to the movement of a second
solute? a) import of glucose into gut epithelial cells b)
export of Ca2+ from the cytosol c) export of H+ from
animal cells for pH regulation d) export of Na+ from
cells to maintain resting membrane - ....ANSWER
....✔✔ d) export of Na+ from cells to maintain
resting membrane potential.
5. Movement of phospholipids from one leaflet to the
other? a) occurs routinely b) requires cholesterol c)
requires flippases d) is impossible - ....ANSWER
....✔✔ c) requires flippases.
6. Active transport requires the input of energy into a
system to move solutes against their electrochemical and
concentration gradients. Which of the following is not
one of the common ways to perform active transport? a)
Na+-coupled b) K+-coupled c) ATP-driven d) light-
driven - ....ANSWER ....✔✔ d) light-driven.
Which detection method is best suitable to visualize
mitochondria? - ....ANSWER ....✔✔ transmission
electron microscopy
,3|Page
The limit of resolution is dependent on.... - ....ANSWER
....✔✔ wavelength properties and numerical
aperture.
The African killifish is used to...... - ....ANSWER ....✔✔
study mechanisms of aging.
Cell and molecular biology often includes characteristics
from which of the following disciplines? - ....ANSWER
....✔✔ biochemistry
molecular genetics
biomechanics
molecular biology
All of the above
The motor protein, kinesin, uses ATP hydrolysis to alter its
shape allowing it to walk along_______? - ....ANSWER
....✔✔ microtubules in cells
Proteins fold into a specific conformation because..... -
....ANSWER ....✔✔ they adopt a lower energy state.
, 4|Page
Michaelis and Menton worked out..... - ....ANSWER
....✔✔ enzyme kinetics
Eukaryotic cells are distinct from prokaryotes
because_____ - ....ANSWER ....✔✔ the presence of
organelles
The three scientists Osamu Shimomura, Martin Chalfie,
and Roger Tsien received a nobel prize for ______. -
....ANSWER ....✔✔ the discovery of fluorescent
proteins
The free energy released by the hydrolysis of cellular
ATP is used by cells______ - ....ANSWER ....✔✔ to
synthesize cellular macromolecules like DNA, RNA, and
proteins
for movements of motor proteins
to power enzymatic reactions
to alter protein conformation
Prokaryotes that are not bacteria are.... - ....ANSWER
....✔✔ Archaea
