Bio 155 Exam 1 Actual study set with
Questions and correct/verified Answers
The scientific method can be used to prove a hypothesis. - ANSWER-false
What step in the scientific method involves making a tentative statement that explains an observation or
ANSWERs a question? - ANSWER-Form a hypothesis
An anecdote is _____. - ANSWER-a testimonial or short, unverified report
In graphs, which of the following is usually plotted on the abscissa (x-axis)? - ANSWER-independent
variable
A scientist has ripped apart an atom and collected all the subatomic particles located in the nucleus of
the atom.
Which one of the following has he collected? - ANSWER-protons and neutrons
Which one of the following is TRUE regarding electrons, shells, and energy? - ANSWER-Electrons are
located in shells around the nucleus
________ bonds hold the hydrogens to the oxygen within a water molecule, and ________ bonds attract
one water molecule to other water molecules. - ANSWER-Covalent; hydrogen
Molecules such as water are referred to as ________ because they are electrically neutral overall but still
have partially charged regions. - ANSWER-polar molecules
Carbohydrates have which one of the following characteristics? - ANSWER-They contain carbon,
hydrogen, and oxygen
Glucose is a(n) - ANSWER-monosaccharide
Lipids are important to biological systems because - ANSWER-some lipid types are potentially large
sources of energy to perform cellular work
DNA differs from RNA in that DNA - ANSWER-contains deoxyribose
Lipids stored in the body are an example of potential energy. - ANSWER-True
To increase the surface area of some cells, the plasma membrane possesses: - ANSWER-microvilli
The products of the endoplasmic reticulum (ER) are transported to the Golgi apparatus by: - ANSWER-
vesicles
Assume that you ate a salad that contained some compounds that upset your stomach but still managed
to be absorbed and eventually moved into liver cells.
The plant compounds are noxious and potentially toxic to the liver cells. Which organelle in the liver cells
would be expected to target and detoxify the plant compounds? - ANSWER-peroxisome
Which one of the following statements CORRECTLY describes the architecture of a plasma membrane? -
ANSWER-Proteins and cholesterol are embedded in the phospholipid bilayer, forming a fluid mosaic.
A researcher is studying a newly discovered toxin. The effect of this toxin is to block the action of the
sodium-potassium pump.
What prediction can be made about the effect of this toxin on cell volume? - ANSWER-The cell volume
will increase as water flows into the cell by osmosis.
Questions and correct/verified Answers
The scientific method can be used to prove a hypothesis. - ANSWER-false
What step in the scientific method involves making a tentative statement that explains an observation or
ANSWERs a question? - ANSWER-Form a hypothesis
An anecdote is _____. - ANSWER-a testimonial or short, unverified report
In graphs, which of the following is usually plotted on the abscissa (x-axis)? - ANSWER-independent
variable
A scientist has ripped apart an atom and collected all the subatomic particles located in the nucleus of
the atom.
Which one of the following has he collected? - ANSWER-protons and neutrons
Which one of the following is TRUE regarding electrons, shells, and energy? - ANSWER-Electrons are
located in shells around the nucleus
________ bonds hold the hydrogens to the oxygen within a water molecule, and ________ bonds attract
one water molecule to other water molecules. - ANSWER-Covalent; hydrogen
Molecules such as water are referred to as ________ because they are electrically neutral overall but still
have partially charged regions. - ANSWER-polar molecules
Carbohydrates have which one of the following characteristics? - ANSWER-They contain carbon,
hydrogen, and oxygen
Glucose is a(n) - ANSWER-monosaccharide
Lipids are important to biological systems because - ANSWER-some lipid types are potentially large
sources of energy to perform cellular work
DNA differs from RNA in that DNA - ANSWER-contains deoxyribose
Lipids stored in the body are an example of potential energy. - ANSWER-True
To increase the surface area of some cells, the plasma membrane possesses: - ANSWER-microvilli
The products of the endoplasmic reticulum (ER) are transported to the Golgi apparatus by: - ANSWER-
vesicles
Assume that you ate a salad that contained some compounds that upset your stomach but still managed
to be absorbed and eventually moved into liver cells.
The plant compounds are noxious and potentially toxic to the liver cells. Which organelle in the liver cells
would be expected to target and detoxify the plant compounds? - ANSWER-peroxisome
Which one of the following statements CORRECTLY describes the architecture of a plasma membrane? -
ANSWER-Proteins and cholesterol are embedded in the phospholipid bilayer, forming a fluid mosaic.
A researcher is studying a newly discovered toxin. The effect of this toxin is to block the action of the
sodium-potassium pump.
What prediction can be made about the effect of this toxin on cell volume? - ANSWER-The cell volume
will increase as water flows into the cell by osmosis.
