BIOL 1406 Lab Midterm Exam Questions with Correct Answers Latest Update 2025/2026
What is the stinging organelle that assists it in capturing large prey? - Answers Trichocyst
Which species of amoeba did you observe under the microscope? - Answers Amoeba proteus
Which experimental group receives the treatment? - Answers Control group
A solution that tends to release protons is - Answers An acid
The portion of a phospholipid that contains the phosphate group has one or more electrical
charges. That makes this region of the molecule - Answers Hydrophilic
The Biuret test is used to detect the presence of which group of macromolecules? - Answers
Proteins
Which of the following molecules move across the cell membrane by simple diffusion? -
Answers Oxygen, carbon dioxide, and water
Which of the following transport processes requires the expenditure of energy? - Answers
Exocytosis
Which of the following statements regarding enzymes is true? - Answers Enzymes increase the
rate of reaction
When the products of a reaction are at a higher energy level than the reactants, the reaction is -
Answers Endergonic
Term which means that if an object is centered with the low power objective, it is centered when
you switch to the high power objective? - Answers Par-centered
Eukaryotic cells can be larger than prokaryotic cells because - Answers Their internal membrane
system allows compartmentalization of functions, and extra surface area for nutrient exchange
and location of enzymes
Which of the following terms is an explanation of scientific phenomenon that is accompanied
by supporting evidence from multiple investigators? - Answers Theory
You are characterizing groups of guppies. You have found that guppies live in environments
with cichlids. You make the statement "Drab color helps guppies hide from predators." This as
an example of - Answers Hypothesis
There are 20 different amino acids that make up proteins found in living organism. How are
these amino acids identified? - Answers By the characteristics of their side chains or "R groups"
Which functional group is most responsible for some organic molecules behaving like bases? -
Answers Amino
, Movement of a substance from a point of higher to low concentration is known as - Answers
Passive transport
A plant cell placed in a hypotonic solution will take on water. Where does the water go to? -
Answers Central vacuole
If all enzyme available is bound to substrate, then increasing substrate concentration will not
increase the rate of reaction. That point where the active sites of all enzymes are occupied by a
substrate is called - Answers Maximum reaction rate
Which cellular structure, found in both prokaryotes and eukaryotes is responsible for protein
synthesis? - Answers Ribosomes
When biologists study the internal structure of cells, they would most likely use - Answers
Transmission electron microscope
When designing an experiment the treatment and control group must be the same, expect for
the variable being tested. What is the inert substance that is often given to control groups so the
test subjects don't know if they're receiving the treatment or not? - Answers Placebo
A Which of the following would be classified as acid rain? - Answers Rain with pH of 4.5
Rice would be most accurately be classified as a - Answers Strach
Which of the following is a common monosaccharide? - Answers Fructose
The difference in concentration of a solute across a membrane is called - Answers
Concentration gradience
An enzyme that hydrolyses proteins will not act upon starch. This fact is an indication that
enzymes are - Answers Specific
What is the light source used with a compound light microscope? - Answers Visible light
An organism that causes disease in its host is known as - Answers Pathogen
Ideally, control and experimental groups differ in ___ variable(s) - Answers 1
Vegetable oil is known as a - Answers Lipid
What is the function of carbohydrates in the cell membrane? - Answers Cell to cell recognition
Placing phospholipids into an aqueous solution immediately results in their forming a lipid
bilayer. What is the driving force causing this ordered arrangement? - Answers The
phospholipids are very orders in water, and gain freedom of movement by forming a bilayer
Which of the following enzymes would be important in fat digestion? - Answers Lipase
What is the stinging organelle that assists it in capturing large prey? - Answers Trichocyst
Which species of amoeba did you observe under the microscope? - Answers Amoeba proteus
Which experimental group receives the treatment? - Answers Control group
A solution that tends to release protons is - Answers An acid
The portion of a phospholipid that contains the phosphate group has one or more electrical
charges. That makes this region of the molecule - Answers Hydrophilic
The Biuret test is used to detect the presence of which group of macromolecules? - Answers
Proteins
Which of the following molecules move across the cell membrane by simple diffusion? -
Answers Oxygen, carbon dioxide, and water
Which of the following transport processes requires the expenditure of energy? - Answers
Exocytosis
Which of the following statements regarding enzymes is true? - Answers Enzymes increase the
rate of reaction
When the products of a reaction are at a higher energy level than the reactants, the reaction is -
Answers Endergonic
Term which means that if an object is centered with the low power objective, it is centered when
you switch to the high power objective? - Answers Par-centered
Eukaryotic cells can be larger than prokaryotic cells because - Answers Their internal membrane
system allows compartmentalization of functions, and extra surface area for nutrient exchange
and location of enzymes
Which of the following terms is an explanation of scientific phenomenon that is accompanied
by supporting evidence from multiple investigators? - Answers Theory
You are characterizing groups of guppies. You have found that guppies live in environments
with cichlids. You make the statement "Drab color helps guppies hide from predators." This as
an example of - Answers Hypothesis
There are 20 different amino acids that make up proteins found in living organism. How are
these amino acids identified? - Answers By the characteristics of their side chains or "R groups"
Which functional group is most responsible for some organic molecules behaving like bases? -
Answers Amino
, Movement of a substance from a point of higher to low concentration is known as - Answers
Passive transport
A plant cell placed in a hypotonic solution will take on water. Where does the water go to? -
Answers Central vacuole
If all enzyme available is bound to substrate, then increasing substrate concentration will not
increase the rate of reaction. That point where the active sites of all enzymes are occupied by a
substrate is called - Answers Maximum reaction rate
Which cellular structure, found in both prokaryotes and eukaryotes is responsible for protein
synthesis? - Answers Ribosomes
When biologists study the internal structure of cells, they would most likely use - Answers
Transmission electron microscope
When designing an experiment the treatment and control group must be the same, expect for
the variable being tested. What is the inert substance that is often given to control groups so the
test subjects don't know if they're receiving the treatment or not? - Answers Placebo
A Which of the following would be classified as acid rain? - Answers Rain with pH of 4.5
Rice would be most accurately be classified as a - Answers Strach
Which of the following is a common monosaccharide? - Answers Fructose
The difference in concentration of a solute across a membrane is called - Answers
Concentration gradience
An enzyme that hydrolyses proteins will not act upon starch. This fact is an indication that
enzymes are - Answers Specific
What is the light source used with a compound light microscope? - Answers Visible light
An organism that causes disease in its host is known as - Answers Pathogen
Ideally, control and experimental groups differ in ___ variable(s) - Answers 1
Vegetable oil is known as a - Answers Lipid
What is the function of carbohydrates in the cell membrane? - Answers Cell to cell recognition
Placing phospholipids into an aqueous solution immediately results in their forming a lipid
bilayer. What is the driving force causing this ordered arrangement? - Answers The
phospholipids are very orders in water, and gain freedom of movement by forming a bilayer
Which of the following enzymes would be important in fat digestion? - Answers Lipase
