MURRAY STATE BIO 101 EXAM 1 |
HEWLETT BIOLOGY STUDY GUIDE,
PRACTICE QUESTIONS, ANSWERS & EXAM
PREP
"Exo" - correct answer Means outside
"Endo" - correct answer Means inside
Two types of transport - correct answer Passive and Active
Passive transport - correct answer Diffusion of molecules ACROSS concentration
gradients
Active transport - correct answer molecules get transported across membranes
AGAINST the gradient and requires energy
Centrioles - correct answer Barrel shaped ring that anchors structures within the cell,
helps move chromosomes around
Cytoskeleton - correct answer protein fibers that give the cell its shape and structural
support
Lysosomes - correct answer sacks of digestive enzymes used to break down proteins
Ribosomes - correct answer where proteins are assembled, found free-floating in the
cytoplasm
Endoplasmic Reticulum - correct answer involved in protein and lipid synthesis
Cell wall - correct answer Rigid structure that helps maintain cellular shape
Nucleus - correct answer contains its own membrane (all eukaryotic cells contain a
_________)
Mitochondria - correct answer Powerhouse of the cell
, Chloroplast - correct answer uses the suns energy to convert Co2 and water into sugars
(green)
Scientific method - correct answer evidence-based approach to problem solving
"Bio" is latin for what - correct answer Means "life"
"Ology" means what - correct answer Means "The study of something"
Hypothesis - correct answer the idea of how things work, an educated guess
Who was Barry Marshal and what did he do? - correct answer Australian physician who
believed that the bacteria Helicobater Plyori was present in all stomach ulsers and was
the cause of them
Also infected himself with helicobater Plyori to prove his hypothesis
Scientific Theory - correct answer based on well-supported hypotheses from several
different, independent lines of research
Two types of hypotheses - correct answer Null and alternative hypothesis
Null Hypothesis - correct answer No difference between two variables
Alternative Hypothesis - correct answer There is a difference between two variables
Experiment - correct answer Set of actions or observations designed to test hypotheses
Data - correct answer information collected during the test
Variables - correct answer Anything that changes in value under different circumstances
Placebo - correct answer a sham, an ineffectual treatment
Blinding - correct answer an attempt to estimate bias
Independent variable - correct answer variable that is changed
Dependent variable - correct answer value that cannot be changed
Where do elements come from? - correct answer created by massive explosions of
stars
Elements - correct answer the fundamental forms of matter that are composed of atoms
Examples of elements - correct answer Carbon, gold, uranium
HEWLETT BIOLOGY STUDY GUIDE,
PRACTICE QUESTIONS, ANSWERS & EXAM
PREP
"Exo" - correct answer Means outside
"Endo" - correct answer Means inside
Two types of transport - correct answer Passive and Active
Passive transport - correct answer Diffusion of molecules ACROSS concentration
gradients
Active transport - correct answer molecules get transported across membranes
AGAINST the gradient and requires energy
Centrioles - correct answer Barrel shaped ring that anchors structures within the cell,
helps move chromosomes around
Cytoskeleton - correct answer protein fibers that give the cell its shape and structural
support
Lysosomes - correct answer sacks of digestive enzymes used to break down proteins
Ribosomes - correct answer where proteins are assembled, found free-floating in the
cytoplasm
Endoplasmic Reticulum - correct answer involved in protein and lipid synthesis
Cell wall - correct answer Rigid structure that helps maintain cellular shape
Nucleus - correct answer contains its own membrane (all eukaryotic cells contain a
_________)
Mitochondria - correct answer Powerhouse of the cell
, Chloroplast - correct answer uses the suns energy to convert Co2 and water into sugars
(green)
Scientific method - correct answer evidence-based approach to problem solving
"Bio" is latin for what - correct answer Means "life"
"Ology" means what - correct answer Means "The study of something"
Hypothesis - correct answer the idea of how things work, an educated guess
Who was Barry Marshal and what did he do? - correct answer Australian physician who
believed that the bacteria Helicobater Plyori was present in all stomach ulsers and was
the cause of them
Also infected himself with helicobater Plyori to prove his hypothesis
Scientific Theory - correct answer based on well-supported hypotheses from several
different, independent lines of research
Two types of hypotheses - correct answer Null and alternative hypothesis
Null Hypothesis - correct answer No difference between two variables
Alternative Hypothesis - correct answer There is a difference between two variables
Experiment - correct answer Set of actions or observations designed to test hypotheses
Data - correct answer information collected during the test
Variables - correct answer Anything that changes in value under different circumstances
Placebo - correct answer a sham, an ineffectual treatment
Blinding - correct answer an attempt to estimate bias
Independent variable - correct answer variable that is changed
Dependent variable - correct answer value that cannot be changed
Where do elements come from? - correct answer created by massive explosions of
stars
Elements - correct answer the fundamental forms of matter that are composed of atoms
Examples of elements - correct answer Carbon, gold, uranium
