LSUE Biology 1001 Midterm EXAM
LSUE BIOLOGY 1001 MIDTERM EXAM NEWEST ACTUAL EXAM
COMPLETE 250 QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A+||BRAND NEW
VERSION!!
You work for a company that manufactures food products. A new "wonder food"
is being distributed by a rival company. The researchers in your company
determine that the "wonder food" contains only carbon, oxygen, and hydrogen. At
this point, your researchers can say with certainty that the food
a. includes proteins.
b. could only be made of triglycerides.
c. could only be made of carbohydrates.
d. does not include proteins or nucleic acids.
does not include proteins or nucleic acids.
You're the manager of a factory that produces enzyme-washed blue jeans (the
enzymes lighten the color of the denim, giving a "faded" appearance). When the
most recent batch of fabric came out of the enzyme wash, however, the color
wasn't light enough to meet your standards. Your quality control laboratory wants
to do some tests to determine why the wash enzymes didn't perform as expected.
Based on your understanding of enzyme structure, which of the following would
you recommend that they also investigate?
a. the temperature of the liquid in the washing vat
b. the manufacturer of the fabric
c. how long the fabric has been in storage
d. the primary structure of the enzyme
the temperature of the liquid in the washing vat
1|Page
, LSUE Biology 1001 Midterm EXAM
Which of the following statements about internal membranes in eukaryotic cells is
false?
a. In eukaryotic cells, internal membranes greatly increase a cell's total membrane
area.
b. In eukaryotic cells, internal membranes provide an additional area for many
metabolic processes to occur.
c. In eukaryotic cells, internal membranes form membranous compartments
called organelles.
d. In eukaryotic cells, internal membranes standardize the internal environment of
all cellular organelles.
In eukaryotic cells, internal membranes standardize the internal environment of
all cellular organelles.
Which of the following statements regarding the endomembrane system is false?
a. The endomembrane system is involved in the synthesis, storage, and export of
important molecules.
b. The endomembrane system includes the rough and smooth endoplasmic
reticulum.
c. The endomembrane system includes the nuclear envelope.
d. The endomembrane system is a system of interrelated membranes that are all
physically connected.
The endomembrane system is a system of interrelated membranes that are all
physically connected.
Which of the following would be most affected by a mutation that prevented cells
from forming tight junctions?
a. attachment of cells to the surrounding matrix
b. direct flow of water and small molecules from one cell to another
2|Page
, LSUE Biology 1001 Midterm EXAM
c. integrity of the inner lining of the digestive tract
d. attachment of the cytoskeleton to the inside of the plasma membrane
integrity of the inner lining of the digestive tract
The complex of proteins and DNA in a nondividing cell is called
a. chromatin.
b. a nucleolus.
c. a ribosome.
d. a lysosome.
chromatin.
The endosymbiosis hypothesis proposes that
a. two cells were juxtaposed and one benefited from the other.
b. a small cell lived inside a larger cell to the benefit of both cells.
c. a large cell engulfed and digested a smaller cell, exposing its enzymes for use by
the larger cell.
d. two cells merged into one cell, improving the enzyme function of the new cell.
a small cell lived inside a larger cell to the benefit of both cells.
Cilia differ from flagella in that
a. cilia contain nine microtubule doublets surrounding a central pair of
microtubules, while flagella contain only nine microtubule doublets.
b. the protein filaments of cilia are "naked," while those of flagella are wrapped in
an extension of the cell membrane.
c. cilia are typically more numerous and shorter than flagella.
d. cilia are anchored only in the proteins of the cell membrane, while flagella are
anchored in a special structure called the basal body.
cilia are typically more numerous and shorter than flagella.
3|Page
, LSUE Biology 1001 Midterm EXAM
If placed in tap water, an animal cell will undergo lysis, whereas a plant cell will
not. What accounts for this difference?
a. the expulsion of water by the plant cell's central vacuole
b. the relative impermeability of the plant cell wall to water
c. the fact that plant cells are isotonic to tap water
d. the relative inelasticity and strength of the plant cell wall
the relative inelasticity and strength of the plant cell wall
Oxygen crosses a plasma membrane by
a. osmosis.
b. active transport.
c. pinocytosis.
d. passive transport.
passive transport.
Certain cells that line the stomach synthesize a digestive enzyme and secrete it
into the stomach. This enzyme is a protein. Which of the following processes could
be responsible for its secretion?
a. endocytosis
b. exocytosis
c. diffusion
d. pinocytosis
exocytosis
Which of the following processes can move a solute against its concentration
gradient?
a. osmosis
b. passive transport
4|Page
LSUE BIOLOGY 1001 MIDTERM EXAM NEWEST ACTUAL EXAM
COMPLETE 250 QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A+||BRAND NEW
VERSION!!
You work for a company that manufactures food products. A new "wonder food"
is being distributed by a rival company. The researchers in your company
determine that the "wonder food" contains only carbon, oxygen, and hydrogen. At
this point, your researchers can say with certainty that the food
a. includes proteins.
b. could only be made of triglycerides.
c. could only be made of carbohydrates.
d. does not include proteins or nucleic acids.
does not include proteins or nucleic acids.
You're the manager of a factory that produces enzyme-washed blue jeans (the
enzymes lighten the color of the denim, giving a "faded" appearance). When the
most recent batch of fabric came out of the enzyme wash, however, the color
wasn't light enough to meet your standards. Your quality control laboratory wants
to do some tests to determine why the wash enzymes didn't perform as expected.
Based on your understanding of enzyme structure, which of the following would
you recommend that they also investigate?
a. the temperature of the liquid in the washing vat
b. the manufacturer of the fabric
c. how long the fabric has been in storage
d. the primary structure of the enzyme
the temperature of the liquid in the washing vat
1|Page
, LSUE Biology 1001 Midterm EXAM
Which of the following statements about internal membranes in eukaryotic cells is
false?
a. In eukaryotic cells, internal membranes greatly increase a cell's total membrane
area.
b. In eukaryotic cells, internal membranes provide an additional area for many
metabolic processes to occur.
c. In eukaryotic cells, internal membranes form membranous compartments
called organelles.
d. In eukaryotic cells, internal membranes standardize the internal environment of
all cellular organelles.
In eukaryotic cells, internal membranes standardize the internal environment of
all cellular organelles.
Which of the following statements regarding the endomembrane system is false?
a. The endomembrane system is involved in the synthesis, storage, and export of
important molecules.
b. The endomembrane system includes the rough and smooth endoplasmic
reticulum.
c. The endomembrane system includes the nuclear envelope.
d. The endomembrane system is a system of interrelated membranes that are all
physically connected.
The endomembrane system is a system of interrelated membranes that are all
physically connected.
Which of the following would be most affected by a mutation that prevented cells
from forming tight junctions?
a. attachment of cells to the surrounding matrix
b. direct flow of water and small molecules from one cell to another
2|Page
, LSUE Biology 1001 Midterm EXAM
c. integrity of the inner lining of the digestive tract
d. attachment of the cytoskeleton to the inside of the plasma membrane
integrity of the inner lining of the digestive tract
The complex of proteins and DNA in a nondividing cell is called
a. chromatin.
b. a nucleolus.
c. a ribosome.
d. a lysosome.
chromatin.
The endosymbiosis hypothesis proposes that
a. two cells were juxtaposed and one benefited from the other.
b. a small cell lived inside a larger cell to the benefit of both cells.
c. a large cell engulfed and digested a smaller cell, exposing its enzymes for use by
the larger cell.
d. two cells merged into one cell, improving the enzyme function of the new cell.
a small cell lived inside a larger cell to the benefit of both cells.
Cilia differ from flagella in that
a. cilia contain nine microtubule doublets surrounding a central pair of
microtubules, while flagella contain only nine microtubule doublets.
b. the protein filaments of cilia are "naked," while those of flagella are wrapped in
an extension of the cell membrane.
c. cilia are typically more numerous and shorter than flagella.
d. cilia are anchored only in the proteins of the cell membrane, while flagella are
anchored in a special structure called the basal body.
cilia are typically more numerous and shorter than flagella.
3|Page
, LSUE Biology 1001 Midterm EXAM
If placed in tap water, an animal cell will undergo lysis, whereas a plant cell will
not. What accounts for this difference?
a. the expulsion of water by the plant cell's central vacuole
b. the relative impermeability of the plant cell wall to water
c. the fact that plant cells are isotonic to tap water
d. the relative inelasticity and strength of the plant cell wall
the relative inelasticity and strength of the plant cell wall
Oxygen crosses a plasma membrane by
a. osmosis.
b. active transport.
c. pinocytosis.
d. passive transport.
passive transport.
Certain cells that line the stomach synthesize a digestive enzyme and secrete it
into the stomach. This enzyme is a protein. Which of the following processes could
be responsible for its secretion?
a. endocytosis
b. exocytosis
c. diffusion
d. pinocytosis
exocytosis
Which of the following processes can move a solute against its concentration
gradient?
a. osmosis
b. passive transport
4|Page
