Biology 105- Practice Final
Exam with 100% correct
answers (graded A+)
Which of the following elements is most likely to be considered a trace
element in a typical living organism? - answer Fe
The common link between carbohydrates, proteins, lipids, and nucleic acids
is that - answer All of these are carbon-based molecules of life
Molecular structure and function are intimately linked. If a mutation causes a
cell to produce a differently-shaped protein, then the most likely result is that
- answer The mutation protein will not act the same as one without the
mutation
To say that an enzyme catalyzes a reaction is to - answer Say that the
enzyme generally reduces the activation energy of a reaction
The specific location on an enzyme that interacts to catalyze a reaction is the
- answer Active site
Which statement below is supported by the laws of thermodynamics? -
answer Energy is not created or destroyed, but changes form.
In eukaryotic cells, the reactions of cellular respiration that yield the most
ATP molecules occur - answer In mitochondria
Since ATP synthase is powered by a flow of H+ ions through a membrane,
punching random holes in the membrane for H+ to go through would
probably - answer Increase ATP production
, In the light reactions of plants, light hits pigments such as chlorophyll and
this causes - answer Pigments to be oxidized
These two products of the light reactions of photosynthesis provide a source
of electrons and H+ ions as well as energy for the Calvin Cycle reactions: -
answer ATP and NADPH
During the reactions of photosynthesis, carbon-containing molecules such as
sugar or G3P are built. The carbon for these comes from - answer Carbon
dioxide
If one side of a DNA molecule contained a nitrogen base called Adenine, then
the other strand of the same molecule should contain this base to pair up
with the Adenine: - answer Thymine
You have isolated one molecule of DNA that is not radioactive. You allow it to
sit with the enzymes of replication in a "soup" of radioactive nucleotides.
After one round of replication, the two DNA molecules will be - answer Each
molecule of DNA will be half non-radioactive and half radioactive
The process called transcription involves - answer DNA coding for mRNA in
the nucleus
Which of the following most accurately describes a codon? - answer It
consists of three consecutive mRNA nucleotides.
In a eukaryotic cell, transcription is typically followed by - answer Editing of
the mRNA transcript.
If a single base is accidentally deleted from an mRNA molecule, then -
answer Translation would be affected by a frameshift mutation starting at the
point of the deletion.
Exam with 100% correct
answers (graded A+)
Which of the following elements is most likely to be considered a trace
element in a typical living organism? - answer Fe
The common link between carbohydrates, proteins, lipids, and nucleic acids
is that - answer All of these are carbon-based molecules of life
Molecular structure and function are intimately linked. If a mutation causes a
cell to produce a differently-shaped protein, then the most likely result is that
- answer The mutation protein will not act the same as one without the
mutation
To say that an enzyme catalyzes a reaction is to - answer Say that the
enzyme generally reduces the activation energy of a reaction
The specific location on an enzyme that interacts to catalyze a reaction is the
- answer Active site
Which statement below is supported by the laws of thermodynamics? -
answer Energy is not created or destroyed, but changes form.
In eukaryotic cells, the reactions of cellular respiration that yield the most
ATP molecules occur - answer In mitochondria
Since ATP synthase is powered by a flow of H+ ions through a membrane,
punching random holes in the membrane for H+ to go through would
probably - answer Increase ATP production
, In the light reactions of plants, light hits pigments such as chlorophyll and
this causes - answer Pigments to be oxidized
These two products of the light reactions of photosynthesis provide a source
of electrons and H+ ions as well as energy for the Calvin Cycle reactions: -
answer ATP and NADPH
During the reactions of photosynthesis, carbon-containing molecules such as
sugar or G3P are built. The carbon for these comes from - answer Carbon
dioxide
If one side of a DNA molecule contained a nitrogen base called Adenine, then
the other strand of the same molecule should contain this base to pair up
with the Adenine: - answer Thymine
You have isolated one molecule of DNA that is not radioactive. You allow it to
sit with the enzymes of replication in a "soup" of radioactive nucleotides.
After one round of replication, the two DNA molecules will be - answer Each
molecule of DNA will be half non-radioactive and half radioactive
The process called transcription involves - answer DNA coding for mRNA in
the nucleus
Which of the following most accurately describes a codon? - answer It
consists of three consecutive mRNA nucleotides.
In a eukaryotic cell, transcription is typically followed by - answer Editing of
the mRNA transcript.
If a single base is accidentally deleted from an mRNA molecule, then -
answer Translation would be affected by a frameshift mutation starting at the
point of the deletion.
