BIOL 2401 Dallas County Community College -Exam 1
BIOL 2401 Dallas College Questions | 2026/2027 | Answers
Complete Solutions
a charged atom Correct Answers ion
a components of a cells outer membrane and is the precursor of
several other steroids, such as the male sex hormone testosterone
Correct Answers Cholesterol
a compound formed by the union of two amino acids Correct
Answers Dipeptide
A compound formed by union of many amino acid molecules
Correct Answers Polypeptides
a disaccharide forming from the joining of glucose and fructose
Correct Answers Sucrose
A disaccharide that contains two glucose molecules Correct
Answers Maltose
a metal ion, vitamin, or other substance that acts with an enzyme
to bring about certain effects; also called a coenzyme Correct
Answers cofactors
a person is having difficulty keeping a normal body temperature.
what organ systems could malfunction and cause the inability to
regulate body temperature? Correct Answers Urinary and
Integumentary system
,a polypeptide often twists to form a coil or folds into a sheet due
to hydrogen bonding between amino acids in the primary
sequence Correct Answers Secondary structure
a substance causing fats to mix water; containing molecules with
a nonpolar end and a polar end Correct Answers Emulsifiers
a sugar formed when two monosaccharides are joined by
dehydration reaction Correct Answers Disaccharide
A triglyceride Correct Answers Neutral fats
abnormal growth of tissue Correct Answers Tumor
Abnormal heart rhythm Correct Answers Arrhythmia
all of the chemical changes that occur within cells Correct
Answers Metabolism
all systems of the body contribute towards maintaining what
and, therefore a relatively constant internal enviroment Correct
Answers Homeostasis
Alteration of the DNA in a tissue cell Correct Answers
Mutation
amount of energy needed to change an object's temperature by
exactly 18C Correct Answers Specific heat capacity
amount of energy needed to turn water into steam Correct
Answers Heat of Vaporization
, anabolic process that joins small molecules and release water as
a by - product of the reaction; synthesis reaction Correct
Answers Dehydration reaction
any abnormal condition considered harmful to the body; an
illness or disorder Correct Answers DIsease
any influence that causes a mutated cancer to start growing in an
uncontrolled manner Correct Answers Promoter
Any substance that ionizes and conducts electricity; electrolytes
are present in the body fluids and tissues Correct Answers
Electrolyte
Anything that has mass and takes up space Correct Answers
Matter
Apparatus composed of microtubules to which the chromosomes
are attached during cell division Correct Answers Mitotic
Spindle
Assembly of an amino acid chain according to the sequence of
base triplets in a molecule of mRNA Correct Answers
Translation
atom whose nucleus undergoes degeneration and in the process
gives off radiation Correct Answers Radioactive isotope
Blood sugar that is broken down in cells to acquire energy for
ATP production Correct Answers Glucose
BIOL 2401 Dallas College Questions | 2026/2027 | Answers
Complete Solutions
a charged atom Correct Answers ion
a components of a cells outer membrane and is the precursor of
several other steroids, such as the male sex hormone testosterone
Correct Answers Cholesterol
a compound formed by the union of two amino acids Correct
Answers Dipeptide
A compound formed by union of many amino acid molecules
Correct Answers Polypeptides
a disaccharide forming from the joining of glucose and fructose
Correct Answers Sucrose
A disaccharide that contains two glucose molecules Correct
Answers Maltose
a metal ion, vitamin, or other substance that acts with an enzyme
to bring about certain effects; also called a coenzyme Correct
Answers cofactors
a person is having difficulty keeping a normal body temperature.
what organ systems could malfunction and cause the inability to
regulate body temperature? Correct Answers Urinary and
Integumentary system
,a polypeptide often twists to form a coil or folds into a sheet due
to hydrogen bonding between amino acids in the primary
sequence Correct Answers Secondary structure
a substance causing fats to mix water; containing molecules with
a nonpolar end and a polar end Correct Answers Emulsifiers
a sugar formed when two monosaccharides are joined by
dehydration reaction Correct Answers Disaccharide
A triglyceride Correct Answers Neutral fats
abnormal growth of tissue Correct Answers Tumor
Abnormal heart rhythm Correct Answers Arrhythmia
all of the chemical changes that occur within cells Correct
Answers Metabolism
all systems of the body contribute towards maintaining what
and, therefore a relatively constant internal enviroment Correct
Answers Homeostasis
Alteration of the DNA in a tissue cell Correct Answers
Mutation
amount of energy needed to change an object's temperature by
exactly 18C Correct Answers Specific heat capacity
amount of energy needed to turn water into steam Correct
Answers Heat of Vaporization
, anabolic process that joins small molecules and release water as
a by - product of the reaction; synthesis reaction Correct
Answers Dehydration reaction
any abnormal condition considered harmful to the body; an
illness or disorder Correct Answers DIsease
any influence that causes a mutated cancer to start growing in an
uncontrolled manner Correct Answers Promoter
Any substance that ionizes and conducts electricity; electrolytes
are present in the body fluids and tissues Correct Answers
Electrolyte
Anything that has mass and takes up space Correct Answers
Matter
Apparatus composed of microtubules to which the chromosomes
are attached during cell division Correct Answers Mitotic
Spindle
Assembly of an amino acid chain according to the sequence of
base triplets in a molecule of mRNA Correct Answers
Translation
atom whose nucleus undergoes degeneration and in the process
gives off radiation Correct Answers Radioactive isotope
Blood sugar that is broken down in cells to acquire energy for
ATP production Correct Answers Glucose
