1
GENERAL BIOLOGY FINAL EXAM QUESTIONS
AND ANSWERS 2024/2025 252 QUESTIONS AND
CORRECT ANSWERS 100% VERIFIED GRADED
A+✓
True or False: Basic solutions have a pH under 7.0.
Ans: False
What three atoms are components in all carbohydrates?
Ans: Carbon, hydrogen, and oxygen
What are the building blocks of all proteins (polypeptides)?
a. nucleotides
b. lipids
c. amino acids
d. phosphorus
Ans: amino acids
True or False: Saturated fatty acids (found in red meat, butter, cheeses) have
MORE hydrogen ions than unsaturated fatty acids (found in olive oil, fish oil,
avocado).
Ans: True
In our cells, phospholipids
a. form a monolayer that constitutes a single biological membrane.
Pretest - Stuvia US
,2
b. form a bilayer in which the hydrophobic tails are tucked into the interior of
the bilayer.
c. have a hydrophobic head group, and a hydrophilic tail that is oriented
toward the cytoplasm.
d. have a polypeptide trial that is strongly hydrophobic.
Ans: form a bilayer in which the hydrophobic tails are tucked into the interior
of the bilayer
The benefit of having smaller cells is that: (in comparison to a smaller cell)
a. the cells have a lower surface area relative to its volume
b. the cells exchange materials with its environment efficiently
c. they expend a significant amount of energy to function
Ans: the cells exchange materials with its environment efficiently
The rough endoplasmic reticulum is where _________ are synthesized, and the
smooth endoplasmic reticulum is where ______ are synthesized.
Ans: proteins; lipids
Where in the eukaryotic cell is nearly all genetic material stored?
Ans: nucleus
The plasma membrane is a selectively permeable barrier that is responsible
for which of the following?
a. bringing in needed molecules and removing waste from the cell
b. communicating with other cells and the environment
Pretest - Stuvia US
,3
c. anchoring the cell in place
d. All the above
Ans: all the above
In what other organelle is a SMALL amount of genetic material stored?
Ans: mitochondrion
Living cells are separated from the outside environment by a flexible
a. nucleus
b. plasma membrane
c. cell wall
d. DNA circle
Ans: plasma membrane
a proton has ______ charge
a. no
b. a neutral
c. a negative
d. a positive
Ans: a positive
Lysosomes are organelles responsible for the breakdown of macromolecules.
Why is it useful to have the lysosomal reactions compartmentalized, rather
than allowing them to take place freely in the cytoplasm of the cell?
Pretest - Stuvia US
, 4
a. the lysosome's enzymes would break down cellular macromolecules that
should remain intact
b. if these reactions took place in the cytoplasm, their host cells would
become prokaryotic
c. the presence of lysosomes allows vesicles to form more quickly
d. the absence of lysosomes would cause the vacuoles of animal cells to
burst
Ans: the lysosome's enzymes would break down cellular macromolecules
that should remain intact
The process of photosynthesis
a. breaks down sugars to create ATP
b. traps light energy in an energy carrier like ATP
c. produces carbon dioxide
d. occurs in some animal cells
Ans: traps light energy in an energy carrier like ATP
Which of the following would directly supply energy to an active carrier
protein?
a. Lipids
b. Starch
c. ATP
d. fatty acids
Ans: ATP
Pretest - Stuvia US
GENERAL BIOLOGY FINAL EXAM QUESTIONS
AND ANSWERS 2024/2025 252 QUESTIONS AND
CORRECT ANSWERS 100% VERIFIED GRADED
A+✓
True or False: Basic solutions have a pH under 7.0.
Ans: False
What three atoms are components in all carbohydrates?
Ans: Carbon, hydrogen, and oxygen
What are the building blocks of all proteins (polypeptides)?
a. nucleotides
b. lipids
c. amino acids
d. phosphorus
Ans: amino acids
True or False: Saturated fatty acids (found in red meat, butter, cheeses) have
MORE hydrogen ions than unsaturated fatty acids (found in olive oil, fish oil,
avocado).
Ans: True
In our cells, phospholipids
a. form a monolayer that constitutes a single biological membrane.
Pretest - Stuvia US
,2
b. form a bilayer in which the hydrophobic tails are tucked into the interior of
the bilayer.
c. have a hydrophobic head group, and a hydrophilic tail that is oriented
toward the cytoplasm.
d. have a polypeptide trial that is strongly hydrophobic.
Ans: form a bilayer in which the hydrophobic tails are tucked into the interior
of the bilayer
The benefit of having smaller cells is that: (in comparison to a smaller cell)
a. the cells have a lower surface area relative to its volume
b. the cells exchange materials with its environment efficiently
c. they expend a significant amount of energy to function
Ans: the cells exchange materials with its environment efficiently
The rough endoplasmic reticulum is where _________ are synthesized, and the
smooth endoplasmic reticulum is where ______ are synthesized.
Ans: proteins; lipids
Where in the eukaryotic cell is nearly all genetic material stored?
Ans: nucleus
The plasma membrane is a selectively permeable barrier that is responsible
for which of the following?
a. bringing in needed molecules and removing waste from the cell
b. communicating with other cells and the environment
Pretest - Stuvia US
,3
c. anchoring the cell in place
d. All the above
Ans: all the above
In what other organelle is a SMALL amount of genetic material stored?
Ans: mitochondrion
Living cells are separated from the outside environment by a flexible
a. nucleus
b. plasma membrane
c. cell wall
d. DNA circle
Ans: plasma membrane
a proton has ______ charge
a. no
b. a neutral
c. a negative
d. a positive
Ans: a positive
Lysosomes are organelles responsible for the breakdown of macromolecules.
Why is it useful to have the lysosomal reactions compartmentalized, rather
than allowing them to take place freely in the cytoplasm of the cell?
Pretest - Stuvia US
, 4
a. the lysosome's enzymes would break down cellular macromolecules that
should remain intact
b. if these reactions took place in the cytoplasm, their host cells would
become prokaryotic
c. the presence of lysosomes allows vesicles to form more quickly
d. the absence of lysosomes would cause the vacuoles of animal cells to
burst
Ans: the lysosome's enzymes would break down cellular macromolecules
that should remain intact
The process of photosynthesis
a. breaks down sugars to create ATP
b. traps light energy in an energy carrier like ATP
c. produces carbon dioxide
d. occurs in some animal cells
Ans: traps light energy in an energy carrier like ATP
Which of the following would directly supply energy to an active carrier
protein?
a. Lipids
b. Starch
c. ATP
d. fatty acids
Ans: ATP
Pretest - Stuvia US
