BSC 108 Test 1
A collection of hypotheses that have been repeatedly tested without rejection is called a:
A. Test
B. Theory
C. Control
D. Observation - ANS-B. Theory
A new species has been discovered. Individuals of this species are multicellular eukaryotes
that obtain their energy-providing nutrients by ingesting other organisms. What classification
should this species have? A. domain Bacteria
B. domain Archaea
C. domain Eukarya
D. domain Viruses - ANS-C. domain Eukarya
There are 22 neutrons, 33 protons, and 33 electrons in an element. Which of the following
statements is true? A. Its atomic number is 33 and its atomic mass is 33.
B. Its atomic number is 22 and its atomic mass is 33.
C. Its atomic number is 33 and its atomic mass is 55.
D. According to ANS-C, its atomic mass is 55 and its atomic number is 22. Its atomic
number is 33 and its atomic mass is 55.
An enzyme catalyzes a reaction by
A. Supplying the energy to speed up a reaction
B. Lowering the energy of activation of a reaction
C. Changing the equilibrium of a reaction
D. Increasing the activation energy of a reaction - ANS-B. Lowering the energy of
activation of a reaction
Describe an example of diffusion. - ANS-An example of diffusion is when the molecules of
product in a bottle go from being condensed inside the bottle to being released into the air
and spread throughout.
Excess glucose is stored in plants as __________ and in animals as _______.
A. Glycogen, starch
B. Starch, glycogen
C. Fat, oh fat D. Starch, starch - ANS-B. Starch, glycogen
How does hydrolysis affect macromolecules? - ANS-Hydrolysis breaks down
macromolecules into monomers.
In a covalent bond, two atoms share
A. An electron
B. A pair of electrons
C. A proton
D. A pair of protons - ANS-B. A pair of electrons
In order for an enzyme to work properly,
A. It must have a particular shape
B. The temperature must be within certain limits
C. The pH must be within certain limits
D. All are true - ANS-D. All are true
A collection of hypotheses that have been repeatedly tested without rejection is called a:
A. Test
B. Theory
C. Control
D. Observation - ANS-B. Theory
A new species has been discovered. Individuals of this species are multicellular eukaryotes
that obtain their energy-providing nutrients by ingesting other organisms. What classification
should this species have? A. domain Bacteria
B. domain Archaea
C. domain Eukarya
D. domain Viruses - ANS-C. domain Eukarya
There are 22 neutrons, 33 protons, and 33 electrons in an element. Which of the following
statements is true? A. Its atomic number is 33 and its atomic mass is 33.
B. Its atomic number is 22 and its atomic mass is 33.
C. Its atomic number is 33 and its atomic mass is 55.
D. According to ANS-C, its atomic mass is 55 and its atomic number is 22. Its atomic
number is 33 and its atomic mass is 55.
An enzyme catalyzes a reaction by
A. Supplying the energy to speed up a reaction
B. Lowering the energy of activation of a reaction
C. Changing the equilibrium of a reaction
D. Increasing the activation energy of a reaction - ANS-B. Lowering the energy of
activation of a reaction
Describe an example of diffusion. - ANS-An example of diffusion is when the molecules of
product in a bottle go from being condensed inside the bottle to being released into the air
and spread throughout.
Excess glucose is stored in plants as __________ and in animals as _______.
A. Glycogen, starch
B. Starch, glycogen
C. Fat, oh fat D. Starch, starch - ANS-B. Starch, glycogen
How does hydrolysis affect macromolecules? - ANS-Hydrolysis breaks down
macromolecules into monomers.
In a covalent bond, two atoms share
A. An electron
B. A pair of electrons
C. A proton
D. A pair of protons - ANS-B. A pair of electrons
In order for an enzyme to work properly,
A. It must have a particular shape
B. The temperature must be within certain limits
C. The pH must be within certain limits
D. All are true - ANS-D. All are true
