BIOS 252 COMPREHENSIVE EXAM NEWEST 2024
ACTUAL EXAM COMPLETE 100 QUESTIONS AND
CORRECT DETAILED ANSWERS |ALREADY GRADED A+
what are the 9 abdominopelvic regions? - ANSWER: *left hypochondriac
*epigastric
*right hypochondriac
*left lumbar
*umbilical
*right lumbar
*left inguinal (iliac)
*hypogastric
*right inguinal (iliac)
what are the 11 organ systems - ANSWER: *nervous
*respiratory
*endocrine
*digestive
*muscular
*reproductive
*circulatory
*integumentary
*skeletal
*lymphatic
*urinary
function of nervous system - ANSWER: transmits signals from the brain to the rest of
the body
function of respiratory system - ANSWER: brings oxygen into the body while
removing carbon dioxide
function of endocrine system - ANSWER: regulates body activities by releasing
harmones
function of digestive system - ANSWER: break down and absorbs nutrients from food
and liquid and removes waste
function of muscular system - ANSWER: movement and heat production
function of reproductive system - ANSWER: creates offspring and releases hormones
to regulate reproduction
function of circulatory system - ANSWER: deliver blood to cells of the body
,function of integumentary system - ANSWER: *protection
*vitamin D synthesis
*sensation
*thermoregulation
*nonverbal communication
function of lymphatic system - ANSWER: to produce, maintain, and distribute
lymphocytes
function of urinary system - ANSWER: *elimination of excess water and waste
*control of pH
definition of homeostasis - ANSWER: the maintenance of a constant internal
environment
define a negative feedback loop - ANSWER: changes are met with responses that
restore the balance back to the original state
define a positive feedback loop - ANSWER: changes are met with responses that
amplify themselves until balance is restored
describe a covalent bond - ANSWER: *typically between nonmetals
*form through the sharing of electrons
*there are 2 different types of these bonds: polar covalent and nonpolar covalent
describe a polar covalent bond - ANSWER: when one atom in a bond has a higher
electronegativity causing the electrons to be shared unequally
describe an ionic bond - ANSWER: *typically between metals and nonmetals
*form through the transfer of electrons
*form between cations (+) and anions (-)
describe a hydrogen bond - ANSWER: weak bond between a hydrogen atom and a
pair of other atoms that have a high affinity for electrons
describe a synthesis reaction - ANSWER: *occurs when two or more simple
compounds combine to form a more complicated one
*requires energy (endothermic)
describe a decomposition reaction - ANSWER: *occurs when a complex molecule
breaks down to make simpler ones
*releases energy (exothermic)
define a reactant - ANSWER: start the reaction
define a product - ANSWER: what you're left with after a reaction
, what are 2 characteristics of an acid - ANSWER: *willing to give up an H+ ion
*has a ph of <7
what are 2 characteristics of a neutral - ANSWER: *can function as either an acid or a
base
*has a ph of 7
what are 2 characteristics of a base (alkaline) - ANSWER: *accepts H+ ion
*has a ph >7
what is the ph of blood - ANSWER: 7.35-7.45
function of nucleus - ANSWER: directs cell activity and contains DNA
function of nucleolus - ANSWER: ribosome synthesis
function of golgi apparatus - ANSWER: modifies, sorts, and packages proteins set for
their destination
function of mitochondria - ANSWER: ATP production
function of lysosomes - ANSWER: intracellular digestion, cell death (apoptosis)
function of ribosomes - ANSWER: protein synthesis
function of smooth endoplasmic reticulum - ANSWER: lipid synthesis
function of rough endoplasmic reticulum - ANSWER: protein and lipid synthesis
function of cell membrane - ANSWER: regulates what enters and leaves the cell
what is active transport - ANSWER: *low to high concentration
*requires ATP
what are 2 types of active transport - ANSWER: *endocytosis- inside the cell
*exocytosis- outside the cell
what is passive transport - ANSWER: *high to low concentration
*doesn't require ATP
what are 2 types of passive transport - ANSWER: *osmosis
*simple diffusion
what is facilitated diffusion - ANSWER: the passive movement of a particle across a
cell membrane via a channel protein
2 types of chromosomes in the human cell - ANSWER: *diploid (46, mitosis)
ACTUAL EXAM COMPLETE 100 QUESTIONS AND
CORRECT DETAILED ANSWERS |ALREADY GRADED A+
what are the 9 abdominopelvic regions? - ANSWER: *left hypochondriac
*epigastric
*right hypochondriac
*left lumbar
*umbilical
*right lumbar
*left inguinal (iliac)
*hypogastric
*right inguinal (iliac)
what are the 11 organ systems - ANSWER: *nervous
*respiratory
*endocrine
*digestive
*muscular
*reproductive
*circulatory
*integumentary
*skeletal
*lymphatic
*urinary
function of nervous system - ANSWER: transmits signals from the brain to the rest of
the body
function of respiratory system - ANSWER: brings oxygen into the body while
removing carbon dioxide
function of endocrine system - ANSWER: regulates body activities by releasing
harmones
function of digestive system - ANSWER: break down and absorbs nutrients from food
and liquid and removes waste
function of muscular system - ANSWER: movement and heat production
function of reproductive system - ANSWER: creates offspring and releases hormones
to regulate reproduction
function of circulatory system - ANSWER: deliver blood to cells of the body
,function of integumentary system - ANSWER: *protection
*vitamin D synthesis
*sensation
*thermoregulation
*nonverbal communication
function of lymphatic system - ANSWER: to produce, maintain, and distribute
lymphocytes
function of urinary system - ANSWER: *elimination of excess water and waste
*control of pH
definition of homeostasis - ANSWER: the maintenance of a constant internal
environment
define a negative feedback loop - ANSWER: changes are met with responses that
restore the balance back to the original state
define a positive feedback loop - ANSWER: changes are met with responses that
amplify themselves until balance is restored
describe a covalent bond - ANSWER: *typically between nonmetals
*form through the sharing of electrons
*there are 2 different types of these bonds: polar covalent and nonpolar covalent
describe a polar covalent bond - ANSWER: when one atom in a bond has a higher
electronegativity causing the electrons to be shared unequally
describe an ionic bond - ANSWER: *typically between metals and nonmetals
*form through the transfer of electrons
*form between cations (+) and anions (-)
describe a hydrogen bond - ANSWER: weak bond between a hydrogen atom and a
pair of other atoms that have a high affinity for electrons
describe a synthesis reaction - ANSWER: *occurs when two or more simple
compounds combine to form a more complicated one
*requires energy (endothermic)
describe a decomposition reaction - ANSWER: *occurs when a complex molecule
breaks down to make simpler ones
*releases energy (exothermic)
define a reactant - ANSWER: start the reaction
define a product - ANSWER: what you're left with after a reaction
, what are 2 characteristics of an acid - ANSWER: *willing to give up an H+ ion
*has a ph of <7
what are 2 characteristics of a neutral - ANSWER: *can function as either an acid or a
base
*has a ph of 7
what are 2 characteristics of a base (alkaline) - ANSWER: *accepts H+ ion
*has a ph >7
what is the ph of blood - ANSWER: 7.35-7.45
function of nucleus - ANSWER: directs cell activity and contains DNA
function of nucleolus - ANSWER: ribosome synthesis
function of golgi apparatus - ANSWER: modifies, sorts, and packages proteins set for
their destination
function of mitochondria - ANSWER: ATP production
function of lysosomes - ANSWER: intracellular digestion, cell death (apoptosis)
function of ribosomes - ANSWER: protein synthesis
function of smooth endoplasmic reticulum - ANSWER: lipid synthesis
function of rough endoplasmic reticulum - ANSWER: protein and lipid synthesis
function of cell membrane - ANSWER: regulates what enters and leaves the cell
what is active transport - ANSWER: *low to high concentration
*requires ATP
what are 2 types of active transport - ANSWER: *endocytosis- inside the cell
*exocytosis- outside the cell
what is passive transport - ANSWER: *high to low concentration
*doesn't require ATP
what are 2 types of passive transport - ANSWER: *osmosis
*simple diffusion
what is facilitated diffusion - ANSWER: the passive movement of a particle across a
cell membrane via a channel protein
2 types of chromosomes in the human cell - ANSWER: *diploid (46, mitosis)
