BIO 1100 Practice Exam 1 Questions with Correct Answers Latest Update 2026/2027
Building block of carbohydrates - Answers monosaccharides
Building block of proteins - Answers amino acids
Building block of nucleic acids - Answers nucleotides
Building block of some lipids - Answers fatty acid chain
Function of carbohydrates - Answers provide short-term energy
Function of proteins - Answers structural components (collagen fibers, plasma membrane
components, nails, hair), movement (muscles), enzymes
Function of DNA - Answers stores genetic information
Function of ATP - Answers energy
Function of RNA - Answers protein synthesis
Monosaccharide - Answers glucose, fructose
Disaccharide - Answers two sugar molecules linked through dehydration synthesis
Polysaccharide - Answers starch, glycogen, cellulose
Cholesterol - Answers Cell membrane component; precursor for steroid hormones
Saturated fat - Answers A lipid made from fatty acids that have no double bonds between
carbon atoms
Unsaturated fat - Answers A lipid made from fatty acids that have at least one double bond
between carbon atoms.
Type of bond found between proteins - Answers peptide bone
Polypeptide - Answers long chain of amino acids that makes proteins
Primary protein structure - Answers sequence of a chain of amino acids
Secondary protein structure - Answers coiling or folding of a polypeptide due to H-bonding
between amino acids
Tertiary protein structure - Answers 3D folding pattern of a protein due to side chain interactions
Quaternary protein structure - Answers protein consisting of more than one amino acid chain
Glycogen - Answers Storage form of glucose
, Function of lipids - Answers long term energy storage
Triglyceride - Answers a lipid made of three fatty acid molecules and one glycerol molecule
Building block composed of a nitrogenous base, phosphate group and a sugar molecule -
Answers Nucleotide
Type of sugar found in DNA - Answers deoxyribose
Type of sugar found in RNA - Answers ribose
Type of bond holding together organic molecules - Answers covalent bond
Inhibits or stops a stimulus - Answers Negative feedback mechanisms
Increases or enhances a stimulus - Answers Positive feedback mechanisms
Gland, muscle, or organ that carries out the motor response - Answers Effector
Processes incoming sensory information and makes motor output response - Answers Control
center
Carries the stimulus information to the control center - Answers Sensory nerve
Carries the directions from the control center to the effector - Answers Motor nerve
During a platelet plug formation (blood clotting), platelets rush to the site of the injured vessel.
Platelets release seratonin to attract more platelets to rush to the site of the injury to help form
a plug. What type of feedback mechanism is this? - Answers Positive feedback mechanism
Blood pressure is maintained around 110/70 mm Hg. If blood pressure increases, mechanisms
are turned on to lower or decrease blood pressure. The mechanism will aim to shut off the
stimulus causing the increased pressure. What type of feedback mechanism is this? - Answers
Negative feedback mechanism
What type of feedback mechanism assists with childbirth and the hormone oxytocin? - Answers
Positive feedback mechanism
Which type of feedback mechanism regulates blood glucose levels? - Answers Negative
feedback mechanism
The maintenance of balance or equilibrium in the body - Answers Homeostasis
Negative feedback mechanism - Answers
Positive feedback mechanism - Answers
blood vessels, heart - Answers Cardiovascular System
Building block of carbohydrates - Answers monosaccharides
Building block of proteins - Answers amino acids
Building block of nucleic acids - Answers nucleotides
Building block of some lipids - Answers fatty acid chain
Function of carbohydrates - Answers provide short-term energy
Function of proteins - Answers structural components (collagen fibers, plasma membrane
components, nails, hair), movement (muscles), enzymes
Function of DNA - Answers stores genetic information
Function of ATP - Answers energy
Function of RNA - Answers protein synthesis
Monosaccharide - Answers glucose, fructose
Disaccharide - Answers two sugar molecules linked through dehydration synthesis
Polysaccharide - Answers starch, glycogen, cellulose
Cholesterol - Answers Cell membrane component; precursor for steroid hormones
Saturated fat - Answers A lipid made from fatty acids that have no double bonds between
carbon atoms
Unsaturated fat - Answers A lipid made from fatty acids that have at least one double bond
between carbon atoms.
Type of bond found between proteins - Answers peptide bone
Polypeptide - Answers long chain of amino acids that makes proteins
Primary protein structure - Answers sequence of a chain of amino acids
Secondary protein structure - Answers coiling or folding of a polypeptide due to H-bonding
between amino acids
Tertiary protein structure - Answers 3D folding pattern of a protein due to side chain interactions
Quaternary protein structure - Answers protein consisting of more than one amino acid chain
Glycogen - Answers Storage form of glucose
, Function of lipids - Answers long term energy storage
Triglyceride - Answers a lipid made of three fatty acid molecules and one glycerol molecule
Building block composed of a nitrogenous base, phosphate group and a sugar molecule -
Answers Nucleotide
Type of sugar found in DNA - Answers deoxyribose
Type of sugar found in RNA - Answers ribose
Type of bond holding together organic molecules - Answers covalent bond
Inhibits or stops a stimulus - Answers Negative feedback mechanisms
Increases or enhances a stimulus - Answers Positive feedback mechanisms
Gland, muscle, or organ that carries out the motor response - Answers Effector
Processes incoming sensory information and makes motor output response - Answers Control
center
Carries the stimulus information to the control center - Answers Sensory nerve
Carries the directions from the control center to the effector - Answers Motor nerve
During a platelet plug formation (blood clotting), platelets rush to the site of the injured vessel.
Platelets release seratonin to attract more platelets to rush to the site of the injury to help form
a plug. What type of feedback mechanism is this? - Answers Positive feedback mechanism
Blood pressure is maintained around 110/70 mm Hg. If blood pressure increases, mechanisms
are turned on to lower or decrease blood pressure. The mechanism will aim to shut off the
stimulus causing the increased pressure. What type of feedback mechanism is this? - Answers
Negative feedback mechanism
What type of feedback mechanism assists with childbirth and the hormone oxytocin? - Answers
Positive feedback mechanism
Which type of feedback mechanism regulates blood glucose levels? - Answers Negative
feedback mechanism
The maintenance of balance or equilibrium in the body - Answers Homeostasis
Negative feedback mechanism - Answers
Positive feedback mechanism - Answers
blood vessels, heart - Answers Cardiovascular System
