BIOL 181 – Introduction to Human
Anatomy and Physiology Exam 1 (Latest
2024- 2025 Update) with correct and
Verified Answers 100% Correct Grade A -
American Public University
nucleic acids - correct answer macromolecules that store or transfer genetic and
heriditary information in cells; ex) RNA and DNA, both made up of nucleotide
monomers, bonded together covalently in phosphodiester bonds
nucelotides - correct answer made up of phosphate group (attached to carbon 3), 5
carbon sugar, and a nitrogenous base (attached to carbon 1)
pyrimidines - correct answer single ring nitrogenous base: cytosine, uricil, thymine
purines - correct answer double ring nitrogenous base: adenine, guanine
C6H12O6 + 6O2 -> 6 CO2 +6H2O - correct answer equation for respiration, CO2 is
exhaled, H2O mostly used in the body
proteins - correct answer polymers that are made of amino acid monomers with an
amine and carboxylic acid functional group, amino acids bond together with peptide
bonds (dehydration reaction OH- from carboxylic acid, H from amine group
glycoproteins - correct answer proteins with a carbohydrate attached
primary structure - correct answer linear sequence of amino acids in a protein
secondary structure - correct answer shows beta pleated sheets and alpha helices
tertiary structure - correct answer 3d shape, globular or fibrous protein
quaternary structure - correct answer shown in some complex proteins; two or more
proteins associate to form a final protein
acid - correct answer donates H+
base - correct answer donates OH-
kinetic energy - correct answer energy of motion
, BIOL 181 – Introduction to Human
Anatomy and Physiology Exam 1 (Latest
2024- 2025 Update) with correct and
Verified Answers 100% Correct Grade A -
American Public University
potential energy - correct answer energy of the position
role of enzymes - correct answer lower activation energy in chemical reactions,
subtrate enters active site, induced fit occurs, enzyme stressed substrate bonds,
lowering activation energy and facilitating the chemical reaction to occur
plasma membrae - correct answer forms the outer limiting barrier separating the
internal contents of the cell from the external environment; made up of phospholipid
bilayer,
nucleus - correct answer largest structure within the cell and is enclosed by a nuclear
envelope. Contains genetic material, DNA, the fluid within the nucleus is called the
nucleoplasm, nucleolos is dark staining body
cytoplasm - correct answer all cellular contents between the nucleus and cell
membrane
cytosol - correct answer intracellular fluid, high water content
organelles - correct answer little organs- complex organized structures within cells;
unique charecteristic shapes and functions
diffusion - correct answer net movement of substance from where it is more
concentrated to where it is less concentrated
facilitated diffusion - correct answer assists small solutes that are charge or polar
into the cell past the phospholipid bilayer; occurs through channel mediated diffusion-
water filled protein channels; carrier diffusion- assisted by carrier proteins
osmosis - correct answer the passive movement of water through a selectively
permeable membrane; occurs to even out concentrations in and out of cell
Anatomy and Physiology Exam 1 (Latest
2024- 2025 Update) with correct and
Verified Answers 100% Correct Grade A -
American Public University
nucleic acids - correct answer macromolecules that store or transfer genetic and
heriditary information in cells; ex) RNA and DNA, both made up of nucleotide
monomers, bonded together covalently in phosphodiester bonds
nucelotides - correct answer made up of phosphate group (attached to carbon 3), 5
carbon sugar, and a nitrogenous base (attached to carbon 1)
pyrimidines - correct answer single ring nitrogenous base: cytosine, uricil, thymine
purines - correct answer double ring nitrogenous base: adenine, guanine
C6H12O6 + 6O2 -> 6 CO2 +6H2O - correct answer equation for respiration, CO2 is
exhaled, H2O mostly used in the body
proteins - correct answer polymers that are made of amino acid monomers with an
amine and carboxylic acid functional group, amino acids bond together with peptide
bonds (dehydration reaction OH- from carboxylic acid, H from amine group
glycoproteins - correct answer proteins with a carbohydrate attached
primary structure - correct answer linear sequence of amino acids in a protein
secondary structure - correct answer shows beta pleated sheets and alpha helices
tertiary structure - correct answer 3d shape, globular or fibrous protein
quaternary structure - correct answer shown in some complex proteins; two or more
proteins associate to form a final protein
acid - correct answer donates H+
base - correct answer donates OH-
kinetic energy - correct answer energy of motion
, BIOL 181 – Introduction to Human
Anatomy and Physiology Exam 1 (Latest
2024- 2025 Update) with correct and
Verified Answers 100% Correct Grade A -
American Public University
potential energy - correct answer energy of the position
role of enzymes - correct answer lower activation energy in chemical reactions,
subtrate enters active site, induced fit occurs, enzyme stressed substrate bonds,
lowering activation energy and facilitating the chemical reaction to occur
plasma membrae - correct answer forms the outer limiting barrier separating the
internal contents of the cell from the external environment; made up of phospholipid
bilayer,
nucleus - correct answer largest structure within the cell and is enclosed by a nuclear
envelope. Contains genetic material, DNA, the fluid within the nucleus is called the
nucleoplasm, nucleolos is dark staining body
cytoplasm - correct answer all cellular contents between the nucleus and cell
membrane
cytosol - correct answer intracellular fluid, high water content
organelles - correct answer little organs- complex organized structures within cells;
unique charecteristic shapes and functions
diffusion - correct answer net movement of substance from where it is more
concentrated to where it is less concentrated
facilitated diffusion - correct answer assists small solutes that are charge or polar
into the cell past the phospholipid bilayer; occurs through channel mediated diffusion-
water filled protein channels; carrier diffusion- assisted by carrier proteins
osmosis - correct answer the passive movement of water through a selectively
permeable membrane; occurs to even out concentrations in and out of cell
