Bio 411 Carrie May Exam 1, 2, 3 UNH Exam Questions with Correct Answers 100% Verified|
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Endocrine cell signaling that occurs between cells that are far away from each other
Correct order of cell signaling receptor activation, signal transduction, response
In cell communication, which one of the following is a requirement of the responding cell?
it must have receptor proteins
what is a cellular response to signal transduction a change in the proteins found in the
cytosol, release of more signal molecules, a change in the activity of an enzyme
what initiates termination the release of signal molecules from their receptors
in context of cell communication, what does the term ligand refer? signaling molecule
what determines the specifity of a receptor protein the ligand-binding site
GTP binding occurs on which subunit of a G protein the alpha subunit
which of the following is not a type of tissue found in an animal ground
the centrosome is associated with which class of cytoskeleton filaments microtubules
correct order of cytoskeleton filaments in decreasing filament diameter?
microtubules>intermediate filaments> microfilaments
,which of the cytoskeletal types is associated with providing the cell with mechanical strength
intermediate filaments
the actin cytoskeleton is associated with which type of cell movement? cell crawling,
transport of organelles within a cell
cadherin is an example of the cell adhesion molecule
cadherins bind which type of cytoskeleton filament? intermediate filaments or
microfilaments
integrins are proteins that form connections between the ? cytoskeleton and the
extracellular matrix
which of the following cellular junctions is involved in creating a barrier between cells?
tight junction
which type of cellular junction allows for the movement of proteins and transfer RNA
molecules? plasmodesmata
the process of cell division in a prokaryotic cell is called binary fission
the division of genetic material in a eukaryotic cell is called mitosis
the division of the cells cytoplasm in a eukaryotic cell is known as cytokinesis
replication of DNA in a eukaryote occurs during which phase of the cell cycle? s phase
, A cell that is not actively dividing in what phase of the cell cycle? G0 phase
What would happen to the daughter cells if the G1 phase of the parent cell is shortened ?
the cells would be smaller that normal
how many chromosomes are there in a human genome? 46
mitotic cell division is considered asexual because the daughters cells receive DNA from
one parent cell, the daughter cells are genetically identical
at the start of mitosis, how many sister chromatids are present in a human cell? 92
why don't plant cells use a contractile ring to divide their daughter cells? a contractile
ring can't pinch a cell wall, its too rigid
when do sister chromatids separate in meiosis? anaphase 2
another name for crossing over is recombination
at what step in meiosis do the daughter cells become haploid anaphase 1
A new nucleotide can only be added to the ____ of a growing DNA strand, DNA therefore
always grows in the _____ direction 3 ; 5 to 3
What is the name of the enzyme that separates the two strands of DNA during replication?
helicase
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Endocrine cell signaling that occurs between cells that are far away from each other
Correct order of cell signaling receptor activation, signal transduction, response
In cell communication, which one of the following is a requirement of the responding cell?
it must have receptor proteins
what is a cellular response to signal transduction a change in the proteins found in the
cytosol, release of more signal molecules, a change in the activity of an enzyme
what initiates termination the release of signal molecules from their receptors
in context of cell communication, what does the term ligand refer? signaling molecule
what determines the specifity of a receptor protein the ligand-binding site
GTP binding occurs on which subunit of a G protein the alpha subunit
which of the following is not a type of tissue found in an animal ground
the centrosome is associated with which class of cytoskeleton filaments microtubules
correct order of cytoskeleton filaments in decreasing filament diameter?
microtubules>intermediate filaments> microfilaments
,which of the cytoskeletal types is associated with providing the cell with mechanical strength
intermediate filaments
the actin cytoskeleton is associated with which type of cell movement? cell crawling,
transport of organelles within a cell
cadherin is an example of the cell adhesion molecule
cadherins bind which type of cytoskeleton filament? intermediate filaments or
microfilaments
integrins are proteins that form connections between the ? cytoskeleton and the
extracellular matrix
which of the following cellular junctions is involved in creating a barrier between cells?
tight junction
which type of cellular junction allows for the movement of proteins and transfer RNA
molecules? plasmodesmata
the process of cell division in a prokaryotic cell is called binary fission
the division of genetic material in a eukaryotic cell is called mitosis
the division of the cells cytoplasm in a eukaryotic cell is known as cytokinesis
replication of DNA in a eukaryote occurs during which phase of the cell cycle? s phase
, A cell that is not actively dividing in what phase of the cell cycle? G0 phase
What would happen to the daughter cells if the G1 phase of the parent cell is shortened ?
the cells would be smaller that normal
how many chromosomes are there in a human genome? 46
mitotic cell division is considered asexual because the daughters cells receive DNA from
one parent cell, the daughter cells are genetically identical
at the start of mitosis, how many sister chromatids are present in a human cell? 92
why don't plant cells use a contractile ring to divide their daughter cells? a contractile
ring can't pinch a cell wall, its too rigid
when do sister chromatids separate in meiosis? anaphase 2
another name for crossing over is recombination
at what step in meiosis do the daughter cells become haploid anaphase 1
A new nucleotide can only be added to the ____ of a growing DNA strand, DNA therefore
always grows in the _____ direction 3 ; 5 to 3
What is the name of the enzyme that separates the two strands of DNA during replication?
helicase
