HESI Study Guide Questions With New
Update Solutions
/. In Biology, what is the hierarchic system of organization? - Answer-✅Kingdom,
Phylum, Class, Order, Family, Genus, Species.
/.For a scientific experiment to be performed, name 3 important steps that must be
taken. - Answer-✅1-Hypothesis 2-The experiment must be repeatable
3- Conclusion
/.What is a water molecule made up of? - Answer-✅2 hydrogen atoms covalently
bonded to one oxygen atom.
/.What is specific heat? - Answer-✅The amount of heat necessary to raise the
tempurature of 1 gram of a specific molecule by 1 degree Celsius.
/.Define Cohesion: - Answer-✅The ability of a molecule to stay bonded or attracted to
another molecule of the same substance.
/.Define Adhesion: - Answer-✅THe ability of water to bond to or attract other molecules
or substances.
/.Name the 4 important Biologic Molecules - Answer-✅Carbohydrates, lipids, proteins,
and nucleic acids.
/.Fatty Acids, Phospholipids and steriods are all ________________. - Answer-✅Lipids
/.What are the most important functions of Carbohydrates? - Answer-✅Storage,
structure, and energy.
/.2 types of Fatty Acids are___________ and ______________. - Answer-✅Saturated
and Unsaturated
/.Saturated fats are ________ whereas unsaturated fats are ____________ at room
tempurature. - Answer-✅Solid/Liquid
/.What are phospholipids made up of? - Answer-✅2 fatty acids of varying length bonded
to a phosphate group.
, /.Define steriod: - Answer-✅a component of membranes that are precursors to
significant hormones.
/.What is the most significant contributor to cellular function? - Answer-✅Protiens
/.Which is the largest of the biological molecules? - Answer-✅Protiens
/.What is an enzyme? - Answer-✅A particular type of protiens that act to catalyze
different reactions or processes.
/.Components of the molecules of inheritance are? - Answer-✅Nucleic Acid
/.What does "DNA" stand for? - Answer-✅Deoxyribonucleic Acid
/.What is DNA? - Answer-✅A molecule specific to a particular organism and contains
the code that is necessary for replication.
/.What is the function of RNA? - Answer-✅It is used tin transfer and as a messenger of
the genetic code.
/.____________ is the sum of all chemical reactions that occure in an organism? -
Answer-✅Metabolism
/.Name 2 types of cells. - Answer-✅Prokaryotic and Eukaryotic
/.Cells containing no defined nucleus are called? - Answer-✅Prokaryotic
/.Cells tha have a membrane-enclosed nucleus are called? - Answer-✅Eukaryotic
/.What does a nucleus consist of? - Answer-✅Chromosomes which contain the DNA of
the cell.
/.Which organelle reads the RNA produced in the nucleus and translates the genetic
intructions to produce protiens. - Answer-✅Ribosomes
/.In which 2 locations can Ribosomes be found? - Answer-✅The Endoplamic reticulum
(ER) or the cytoplasm.
/.Ribosomes that are bond are found in the _____________. - Answer-✅Endoplasmic
reticulum (ER)
/.Where are "free" ribosomes found? - Answer-✅In cytoplasm.
/.Name the 2 parts of the ER. - Answer-✅Rough and Smooth
Update Solutions
/. In Biology, what is the hierarchic system of organization? - Answer-✅Kingdom,
Phylum, Class, Order, Family, Genus, Species.
/.For a scientific experiment to be performed, name 3 important steps that must be
taken. - Answer-✅1-Hypothesis 2-The experiment must be repeatable
3- Conclusion
/.What is a water molecule made up of? - Answer-✅2 hydrogen atoms covalently
bonded to one oxygen atom.
/.What is specific heat? - Answer-✅The amount of heat necessary to raise the
tempurature of 1 gram of a specific molecule by 1 degree Celsius.
/.Define Cohesion: - Answer-✅The ability of a molecule to stay bonded or attracted to
another molecule of the same substance.
/.Define Adhesion: - Answer-✅THe ability of water to bond to or attract other molecules
or substances.
/.Name the 4 important Biologic Molecules - Answer-✅Carbohydrates, lipids, proteins,
and nucleic acids.
/.Fatty Acids, Phospholipids and steriods are all ________________. - Answer-✅Lipids
/.What are the most important functions of Carbohydrates? - Answer-✅Storage,
structure, and energy.
/.2 types of Fatty Acids are___________ and ______________. - Answer-✅Saturated
and Unsaturated
/.Saturated fats are ________ whereas unsaturated fats are ____________ at room
tempurature. - Answer-✅Solid/Liquid
/.What are phospholipids made up of? - Answer-✅2 fatty acids of varying length bonded
to a phosphate group.
, /.Define steriod: - Answer-✅a component of membranes that are precursors to
significant hormones.
/.What is the most significant contributor to cellular function? - Answer-✅Protiens
/.Which is the largest of the biological molecules? - Answer-✅Protiens
/.What is an enzyme? - Answer-✅A particular type of protiens that act to catalyze
different reactions or processes.
/.Components of the molecules of inheritance are? - Answer-✅Nucleic Acid
/.What does "DNA" stand for? - Answer-✅Deoxyribonucleic Acid
/.What is DNA? - Answer-✅A molecule specific to a particular organism and contains
the code that is necessary for replication.
/.What is the function of RNA? - Answer-✅It is used tin transfer and as a messenger of
the genetic code.
/.____________ is the sum of all chemical reactions that occure in an organism? -
Answer-✅Metabolism
/.Name 2 types of cells. - Answer-✅Prokaryotic and Eukaryotic
/.Cells containing no defined nucleus are called? - Answer-✅Prokaryotic
/.Cells tha have a membrane-enclosed nucleus are called? - Answer-✅Eukaryotic
/.What does a nucleus consist of? - Answer-✅Chromosomes which contain the DNA of
the cell.
/.Which organelle reads the RNA produced in the nucleus and translates the genetic
intructions to produce protiens. - Answer-✅Ribosomes
/.In which 2 locations can Ribosomes be found? - Answer-✅The Endoplamic reticulum
(ER) or the cytoplasm.
/.Ribosomes that are bond are found in the _____________. - Answer-✅Endoplasmic
reticulum (ER)
/.Where are "free" ribosomes found? - Answer-✅In cytoplasm.
/.Name the 2 parts of the ER. - Answer-✅Rough and Smooth
