BIOLOGY 121 EXAM 2 WITH
100% CORRECT ANSWERS 2025
Exergonic Reaction correct answers >> Ends with
the release of free energy. Takes organic compounds and
breaks it up into smaller molecules
Endergonic Reaction correct answers >> Requires
the input of free energy. Builds organic compounds from
smaller molecules.
Exergonic reaction correct answers >> Breaking
down glucose to make ATP is an overall ____ reaction
DNA, Plasma membrane, cytoplasm, and ribosomes
correct answers >> What structure components are
present in ALL cells
Cytoplasm correct answers >> semifluid substance
enclosed by a cell's plasma membrane
Compare and contrast prokaryotic cells and eukaryotic
cells correct answers >> SIMILARITIES:
, 1. They both have DNA as their genetic material.
2. They are both membrane bound.
3. They both have ribosomes .
4. They have similar basic metabolism .
5. They are both amazingly diverse in forms.
DIFERENCES:
1. eukaryotes have a nucleus, while prokaryotes do not
2. eukaryotes have membrane-bound organelles, while
prokaryotes do not. The organelles of eukaryotes allow
them to exhibit much higher levels of intracellular
division of labor than is possible in prokaryotic cells.
3. Eukaryotic cells are, on average, ten times the size of
prokaryotic cells.
4. The DNA of eukaryotes is much more complex and
therefore much more extnsive than the DNA of
prokaryotes.
5. Prokaryotes have a cell wall composed of
peptidoglycan, a single large polymer of amino acids and
sugar . Many types of eukaryotic cells also have cell
walls, but none made of peptidoglycan.
6. The DNA of prokaryotes floats freely around the cell;
the DNA of eukaryotes is held within its nucleus and
associated with histones (proteins)
7. Eukaryotes undergo mitosis; prokaryotes divide by
binary fission (simple cell division)
100% CORRECT ANSWERS 2025
Exergonic Reaction correct answers >> Ends with
the release of free energy. Takes organic compounds and
breaks it up into smaller molecules
Endergonic Reaction correct answers >> Requires
the input of free energy. Builds organic compounds from
smaller molecules.
Exergonic reaction correct answers >> Breaking
down glucose to make ATP is an overall ____ reaction
DNA, Plasma membrane, cytoplasm, and ribosomes
correct answers >> What structure components are
present in ALL cells
Cytoplasm correct answers >> semifluid substance
enclosed by a cell's plasma membrane
Compare and contrast prokaryotic cells and eukaryotic
cells correct answers >> SIMILARITIES:
, 1. They both have DNA as their genetic material.
2. They are both membrane bound.
3. They both have ribosomes .
4. They have similar basic metabolism .
5. They are both amazingly diverse in forms.
DIFERENCES:
1. eukaryotes have a nucleus, while prokaryotes do not
2. eukaryotes have membrane-bound organelles, while
prokaryotes do not. The organelles of eukaryotes allow
them to exhibit much higher levels of intracellular
division of labor than is possible in prokaryotic cells.
3. Eukaryotic cells are, on average, ten times the size of
prokaryotic cells.
4. The DNA of eukaryotes is much more complex and
therefore much more extnsive than the DNA of
prokaryotes.
5. Prokaryotes have a cell wall composed of
peptidoglycan, a single large polymer of amino acids and
sugar . Many types of eukaryotic cells also have cell
walls, but none made of peptidoglycan.
6. The DNA of prokaryotes floats freely around the cell;
the DNA of eukaryotes is held within its nucleus and
associated with histones (proteins)
7. Eukaryotes undergo mitosis; prokaryotes divide by
binary fission (simple cell division)
