Biology 1408: Final Exam
Which one of the following is true about scientific knowledge? - correct
answer Scientific knowledge is not absolute, because the possibility is
always held open that new experiments may one day prove it wrong.
A good hypothesis must: - correct answer be falsifiable.
Choose the answer that best describes the sequence of the scientific
method. - correct answer observation, hypothesis, experiment, conclusion
The role of a control in an experiment is to: - correct answer provide a
basis of comparison to an experimental group.
Which of the following is a theory? - correct answer There is molecular
and biochemical evidence that all organisms are related.
Which of the following is at the root cause for all cancers? - correct
answer a breakdown of the cell division process
Two hydrogen atoms (atomic number 1) form a covalent bond. Which of
the following is true? - correct answer Both hydrogen atoms now have two
electrons in their outer shell.
An atom will react with other atoms only until: - correct answer it has
completely filled its outermost energy level.
,The high specific heat and surface tension of water are a result of: -
correct answer hydrogen bonding between water molecules.
A measure of the quantity of matter in an object is known as: - correct
answer mass.
The naturally occurring helium atom is chemically inert because: - correct
answer its outermost shell is filled with electrons.
For an atom to be considered an ion: - correct answer protons can
outnumber electrons.
All of the following are functions of proteins except: - correct answer
storing genetic information.
The two chains of nucleotides in a DNA molecule are held together by: -
correct answer hydrogen bonds.
What do polysaccharides, such as cellulose; nucleic acids, such as DNA;
and proteins, such as keratin, have in common? - correct answer They are
all built of chemically linked monomers.
Sugar is an organic molecule because it contains: - correct answer carbon.
,An example of an important biological molecule that may contain the -
NH2 group is: - correct answer an enzyme.
Glycogen is a polysaccharide used for energy storage by: - correct answer
animals.
Cell walls can be found as part of: - correct answer plant cells, bacteria,
fungi, and protists.
Which of the following is the correct order of events in a cell? - correct
answer DNA makes RNA; RNA makes protein.
Many antibiotics work by blocking the function of ribosomes. Therefore,
these antibiotics will: - correct answer block protein synthesis.
Cells can increase the number or size of some organelles in response to
new demands. The amount of one organelle often is increased
dramatically in the livers of alcoholics. Based on what you know of
organelle function, this organelle is the: - correct answer smooth
endoplasmic reticulum.
The cytoskeleton is composed of: - correct answer microfilaments,
intermediate filaments, and microtubules.
The large central vacuole of plants: - correct answer may make up as
much as 90 percent of the internal volume of the cell.
, Which of the following is true of the plasma membrane? - correct answer
It controls the passage of substances into and out of the cell.
Short chains of sugars attached to proteins or phospholipids in the cell
membrane make up the: - correct answer glycocalyx.
The huge array of capabilities of the plasma membrane are performed by
its: - correct answer proteins.
Membrane proteins perform all of the following functions except: -
correct answer maintainance of membrane fluidity.
The outer living limit of the cell is called the: - correct answer plasma
membrane.
A purpose of the plasma membrane is to: - correct answer form the outer
boundary of a cell.
What is the energy currency of cells? - correct answer ATP
In the reaction glucose + oxygen carbon dioxide + heat, the: - correct
answer products have less potential energy than the reactants.
Which one of the following is true about scientific knowledge? - correct
answer Scientific knowledge is not absolute, because the possibility is
always held open that new experiments may one day prove it wrong.
A good hypothesis must: - correct answer be falsifiable.
Choose the answer that best describes the sequence of the scientific
method. - correct answer observation, hypothesis, experiment, conclusion
The role of a control in an experiment is to: - correct answer provide a
basis of comparison to an experimental group.
Which of the following is a theory? - correct answer There is molecular
and biochemical evidence that all organisms are related.
Which of the following is at the root cause for all cancers? - correct
answer a breakdown of the cell division process
Two hydrogen atoms (atomic number 1) form a covalent bond. Which of
the following is true? - correct answer Both hydrogen atoms now have two
electrons in their outer shell.
An atom will react with other atoms only until: - correct answer it has
completely filled its outermost energy level.
,The high specific heat and surface tension of water are a result of: -
correct answer hydrogen bonding between water molecules.
A measure of the quantity of matter in an object is known as: - correct
answer mass.
The naturally occurring helium atom is chemically inert because: - correct
answer its outermost shell is filled with electrons.
For an atom to be considered an ion: - correct answer protons can
outnumber electrons.
All of the following are functions of proteins except: - correct answer
storing genetic information.
The two chains of nucleotides in a DNA molecule are held together by: -
correct answer hydrogen bonds.
What do polysaccharides, such as cellulose; nucleic acids, such as DNA;
and proteins, such as keratin, have in common? - correct answer They are
all built of chemically linked monomers.
Sugar is an organic molecule because it contains: - correct answer carbon.
,An example of an important biological molecule that may contain the -
NH2 group is: - correct answer an enzyme.
Glycogen is a polysaccharide used for energy storage by: - correct answer
animals.
Cell walls can be found as part of: - correct answer plant cells, bacteria,
fungi, and protists.
Which of the following is the correct order of events in a cell? - correct
answer DNA makes RNA; RNA makes protein.
Many antibiotics work by blocking the function of ribosomes. Therefore,
these antibiotics will: - correct answer block protein synthesis.
Cells can increase the number or size of some organelles in response to
new demands. The amount of one organelle often is increased
dramatically in the livers of alcoholics. Based on what you know of
organelle function, this organelle is the: - correct answer smooth
endoplasmic reticulum.
The cytoskeleton is composed of: - correct answer microfilaments,
intermediate filaments, and microtubules.
The large central vacuole of plants: - correct answer may make up as
much as 90 percent of the internal volume of the cell.
, Which of the following is true of the plasma membrane? - correct answer
It controls the passage of substances into and out of the cell.
Short chains of sugars attached to proteins or phospholipids in the cell
membrane make up the: - correct answer glycocalyx.
The huge array of capabilities of the plasma membrane are performed by
its: - correct answer proteins.
Membrane proteins perform all of the following functions except: -
correct answer maintainance of membrane fluidity.
The outer living limit of the cell is called the: - correct answer plasma
membrane.
A purpose of the plasma membrane is to: - correct answer form the outer
boundary of a cell.
What is the energy currency of cells? - correct answer ATP
In the reaction glucose + oxygen carbon dioxide + heat, the: - correct
answer products have less potential energy than the reactants.
