Bio 101 EXAM PRETEST QUESTIONS WITH 100%
VERIFIED ANSWERS
process by which cells engulf large substances, forming an
intracellular vacuole. - ANSWER phagocytosis
process by which vesicle formation brings macromolecules into
the cell - ANSWER Pinocytosis
selective uptake of molecules into a cell by vacuole formation
after they bind to specific receptor protiens in the plasma membrane -
ANSWER receptor-mediated endocytosis
receptor-mediated endocytosis requires a specific receptor
protien to recognize a specific molecule - ANSWER true or false
ANSWER: ture
which form of bulk transport is highly selective - ANSWER
receptor-mediated endocytosis
a(n)----- junction is a cellular junction that has intracellular filaments
mechanically connecting the cytoplasmic membrane of adjacent cells -
ANSWER adhesion
capsaocom, the chemical found in chilli peppers, binds to a chemical
protien in pain receptors that, when activated, allows ---- ions to flow into
the cell - ANSWER calcium
in the cell signaling pathway, the series of relay proteins that
ends in the activation of a targeted protein is called the ---
pathway - ANSWER transduction
, which of the following best explains why a hypertonic solution causes a
cell to shrink? - ANSWER a)water rushes out of the cell b)water rushes
into the cell
c)solutes rush into the cell
d)solutes rush out of the cell
ANSWER:A
secretion that occurs only in response to a specific signal is
called - ANSWER regulated secretion
the protective meshwork of protiens and polysaccharides located
extremally to the cell is called the - ANSWER extracellular matrix
which layer of the plant cell wall contains cellulose fibrills -
ANSWER primary cell wall
the cell wall of plants have channels which enable adjacent cells
to readily exchange materials. what are these channels called? -
ANSWER plasmodesmata
the steroid molecule that fiffens and strengthens the plasma membrane
and helps regulate its fluidity is called-- - ANSWER cholesterol
which part of the plasma membrane is nonploar - ANSWER
inferior, where the fatty acid tails are located
a pair of chromosomes that are alike and come together in
synapsis during prophase of the first meiotic division are -
ANSWER homologous
body cells, which are cells that do not undergo meiosis to become sperm
or oocytes, are also called - ANSWER somatic cells
programmed cell death - ANSWER what is apoptosis
,programmed cell death is called - ANSWER apoptosis
the portion of the cell cycle when the cell is getting ready to
divide - ANSWER interphase
during the S stage of interphase, the cell replicates its .... -
ANSWER DNA
a chromatid, which is found in the cell at the beginning of the S
phase, is composed of ..... - ANSWER DNA
a duplicated chromosome has two sister chromatids connected
together as a ... - ANSWER centromere
cytokinesis is the portion of the cell cycle during which -
ANSWER the cytoplasm and organelles of the cell are divided
which of the following distributes daughter chromosomes to daughter
nuclei during the process of cell division? - ANSWER mitosis
mitosis is the portion of the cell cycle in which - ANSWER the
cell divides its DNA
the stages of the cell cycle during which growth and DNA synthesis occur,
when the nucleus is not actively dividing, are collectively called -
ANSWER interphase
what is the division of cellular cytoplasm called - ANSWER
cytoknesis
the portion of the cell cycle when the cell is getting ready to
divide - ANSWER interphase is
the first phase of meiosis is - ANSWER prophase 1
during which phase of meiosis are you most likely to observe
, independent assortment? - ANSWER anaphase 1
which occur during the telophase 1 - ANSWER the nuclear
envelope reforms, and the nucieoli reappear
there is a chromosomal duplication during interkinesis, which
occurs between meiosis 1 and meiosis 11 - ANSWER ture or
false
ANSWER: false
a population has a greater chance of surviving in a changing
environment it there is ----- within it - ANSWER genetic variation
signals that ensure that stages of the cell cycle follow one another in the
normal sequence are more likely to be ----- signals
- ANSWER internal signals
cyclins are chromosomal proteins that function during mitosis -
ANSWER true or false
ANSWER: false
tumor suppressor genes encode proteins that ... - ANSWER
promote apoptosis, stop the cell cycle
the development of cancer always involve in gene mutation -
ANSWER true
when proto-oncogenes mutate, they form--- causing genes called
oncogenes - ANSWER cancer
two non-sister chromatids of a homologous pair - ANSWER
crossing over occurs between
VERIFIED ANSWERS
process by which cells engulf large substances, forming an
intracellular vacuole. - ANSWER phagocytosis
process by which vesicle formation brings macromolecules into
the cell - ANSWER Pinocytosis
selective uptake of molecules into a cell by vacuole formation
after they bind to specific receptor protiens in the plasma membrane -
ANSWER receptor-mediated endocytosis
receptor-mediated endocytosis requires a specific receptor
protien to recognize a specific molecule - ANSWER true or false
ANSWER: ture
which form of bulk transport is highly selective - ANSWER
receptor-mediated endocytosis
a(n)----- junction is a cellular junction that has intracellular filaments
mechanically connecting the cytoplasmic membrane of adjacent cells -
ANSWER adhesion
capsaocom, the chemical found in chilli peppers, binds to a chemical
protien in pain receptors that, when activated, allows ---- ions to flow into
the cell - ANSWER calcium
in the cell signaling pathway, the series of relay proteins that
ends in the activation of a targeted protein is called the ---
pathway - ANSWER transduction
, which of the following best explains why a hypertonic solution causes a
cell to shrink? - ANSWER a)water rushes out of the cell b)water rushes
into the cell
c)solutes rush into the cell
d)solutes rush out of the cell
ANSWER:A
secretion that occurs only in response to a specific signal is
called - ANSWER regulated secretion
the protective meshwork of protiens and polysaccharides located
extremally to the cell is called the - ANSWER extracellular matrix
which layer of the plant cell wall contains cellulose fibrills -
ANSWER primary cell wall
the cell wall of plants have channels which enable adjacent cells
to readily exchange materials. what are these channels called? -
ANSWER plasmodesmata
the steroid molecule that fiffens and strengthens the plasma membrane
and helps regulate its fluidity is called-- - ANSWER cholesterol
which part of the plasma membrane is nonploar - ANSWER
inferior, where the fatty acid tails are located
a pair of chromosomes that are alike and come together in
synapsis during prophase of the first meiotic division are -
ANSWER homologous
body cells, which are cells that do not undergo meiosis to become sperm
or oocytes, are also called - ANSWER somatic cells
programmed cell death - ANSWER what is apoptosis
,programmed cell death is called - ANSWER apoptosis
the portion of the cell cycle when the cell is getting ready to
divide - ANSWER interphase
during the S stage of interphase, the cell replicates its .... -
ANSWER DNA
a chromatid, which is found in the cell at the beginning of the S
phase, is composed of ..... - ANSWER DNA
a duplicated chromosome has two sister chromatids connected
together as a ... - ANSWER centromere
cytokinesis is the portion of the cell cycle during which -
ANSWER the cytoplasm and organelles of the cell are divided
which of the following distributes daughter chromosomes to daughter
nuclei during the process of cell division? - ANSWER mitosis
mitosis is the portion of the cell cycle in which - ANSWER the
cell divides its DNA
the stages of the cell cycle during which growth and DNA synthesis occur,
when the nucleus is not actively dividing, are collectively called -
ANSWER interphase
what is the division of cellular cytoplasm called - ANSWER
cytoknesis
the portion of the cell cycle when the cell is getting ready to
divide - ANSWER interphase is
the first phase of meiosis is - ANSWER prophase 1
during which phase of meiosis are you most likely to observe
, independent assortment? - ANSWER anaphase 1
which occur during the telophase 1 - ANSWER the nuclear
envelope reforms, and the nucieoli reappear
there is a chromosomal duplication during interkinesis, which
occurs between meiosis 1 and meiosis 11 - ANSWER ture or
false
ANSWER: false
a population has a greater chance of surviving in a changing
environment it there is ----- within it - ANSWER genetic variation
signals that ensure that stages of the cell cycle follow one another in the
normal sequence are more likely to be ----- signals
- ANSWER internal signals
cyclins are chromosomal proteins that function during mitosis -
ANSWER true or false
ANSWER: false
tumor suppressor genes encode proteins that ... - ANSWER
promote apoptosis, stop the cell cycle
the development of cancer always involve in gene mutation -
ANSWER true
when proto-oncogenes mutate, they form--- causing genes called
oncogenes - ANSWER cancer
two non-sister chromatids of a homologous pair - ANSWER
crossing over occurs between
