BIOLOGY 191 EXAM QUESTIONS AND 100%
VERIFIED ANSWERS
Suppose there is a population of wild turkeys. Some can run faster than others
and thus are better at getting away from their predators than others. This process
is called - ANSWER natural selection
What is the correct order for organization of life from smallest to largest? -
ANSWER molecule, organelle, cell, organism, population, community
The statement DNA --> mRNA --> protein is referred to as - ANSWER the
Central Dogma
True or false? A scientist is more certain of a theory than a hypothesis. -
ANSWER true
Because a water molecule is a polar molecule, _____ bonds form between water
molecules - ANSWER hydrogen
-COOH is an acidic group because it tends to - ANSWER drop off a H+ in
solution
organic molecules contain; - ANSWER functional groups, such as -NH2
deoxyribose is a _____ - ANSWER monosaccharide
a ___ _____ is made of three fatty acids, connected by three carbon atoms -
ANSWER fat molecule
,the two chains in DNA are held together by hydrogen bonds - ANSWER
between the nitrogen-containing bases
true or false; both DNA and RNA are made of nucleotides - ANSWER true
prokaryotic cells lack a - ANSWER nucleus
how many of the following does a typical eukaryotic cell have? cytoplasm,
nucleus, plasma membrane, ribosomes - ANSWER 4
in eukaryotes, the nucleus contains - ANSWER chromosomes
cellular membrane in a cell where synthesis of lipids is taking place -
ANSWER smooth ER
a molecule made in the smooth endoplasmic reticulum will be transported in a
_____ - ANSWER transport vesicle
after a molecule is synthesis in the smooth ER, it is modified in the _____ -
ANSWER Golgi body
after the molecule is modified in the Golgi body,it is transported again in a
_____ - ANSWER secretory vesicle
what is the function of lysosomes? - ANSWER to digest and dispose of
unwanted "objects" within the cell
, what do chloroplasts do in plants? - ANSWER photosynthesis
what is the middle lamella for in plant cell walls? - ANSWER the middle
lamella glues two cells together
when animal cells need to hold securely to each other and not break apart, what
are they most likely to be connected by? - ANSWER desmosomes
cellular membranes are primarily composed of - ANSWER proteins and lipids
true or false; osmosis is a form of diffusion - ANSWER true
mutation accounts for both - ANSWER adaptation and evolution
the term "plastids" is a collective term for - ANSWER chloroplasts,
leucoplasts, amyloplasts.
DNA-containing organelles found in plants that lack pigment and internal
structure. may be used as starch-storage sites. - ANSWER leucoplasts
true or false; light is a form of kinetic energy and chemical is a form of potential
energy - ANSWER true
the word for the disorder of a system is - ANSWER entropy
a catabolic reaction is also an _____ reaction - ANSWER exergonic
VERIFIED ANSWERS
Suppose there is a population of wild turkeys. Some can run faster than others
and thus are better at getting away from their predators than others. This process
is called - ANSWER natural selection
What is the correct order for organization of life from smallest to largest? -
ANSWER molecule, organelle, cell, organism, population, community
The statement DNA --> mRNA --> protein is referred to as - ANSWER the
Central Dogma
True or false? A scientist is more certain of a theory than a hypothesis. -
ANSWER true
Because a water molecule is a polar molecule, _____ bonds form between water
molecules - ANSWER hydrogen
-COOH is an acidic group because it tends to - ANSWER drop off a H+ in
solution
organic molecules contain; - ANSWER functional groups, such as -NH2
deoxyribose is a _____ - ANSWER monosaccharide
a ___ _____ is made of three fatty acids, connected by three carbon atoms -
ANSWER fat molecule
,the two chains in DNA are held together by hydrogen bonds - ANSWER
between the nitrogen-containing bases
true or false; both DNA and RNA are made of nucleotides - ANSWER true
prokaryotic cells lack a - ANSWER nucleus
how many of the following does a typical eukaryotic cell have? cytoplasm,
nucleus, plasma membrane, ribosomes - ANSWER 4
in eukaryotes, the nucleus contains - ANSWER chromosomes
cellular membrane in a cell where synthesis of lipids is taking place -
ANSWER smooth ER
a molecule made in the smooth endoplasmic reticulum will be transported in a
_____ - ANSWER transport vesicle
after a molecule is synthesis in the smooth ER, it is modified in the _____ -
ANSWER Golgi body
after the molecule is modified in the Golgi body,it is transported again in a
_____ - ANSWER secretory vesicle
what is the function of lysosomes? - ANSWER to digest and dispose of
unwanted "objects" within the cell
, what do chloroplasts do in plants? - ANSWER photosynthesis
what is the middle lamella for in plant cell walls? - ANSWER the middle
lamella glues two cells together
when animal cells need to hold securely to each other and not break apart, what
are they most likely to be connected by? - ANSWER desmosomes
cellular membranes are primarily composed of - ANSWER proteins and lipids
true or false; osmosis is a form of diffusion - ANSWER true
mutation accounts for both - ANSWER adaptation and evolution
the term "plastids" is a collective term for - ANSWER chloroplasts,
leucoplasts, amyloplasts.
DNA-containing organelles found in plants that lack pigment and internal
structure. may be used as starch-storage sites. - ANSWER leucoplasts
true or false; light is a form of kinetic energy and chemical is a form of potential
energy - ANSWER true
the word for the disorder of a system is - ANSWER entropy
a catabolic reaction is also an _____ reaction - ANSWER exergonic
