NU Bio 201 Ch. 3 Test Questions and Answers Rated A
A - SMOOTH ER: Site of synthesis of lipid and molecules that recognize specific amino acids
steroid molecules and nucleotide base sequences
B- MITOCHONDRIA: Produces ATP aerobically
C - LYSOSOMES: Site of enzymatic breakdown
of phagocytized material AND Source of cell Synthetase enzymes - -Attaches the
autolysis. correct amino acid to its transfer RNA
D- MICROTUBULES: Forms the mitotic spindle
AND Replicate for cell division
E - GOLGI APPARATUS: Packages proteins for Ribosimal RNA - -Forms part of the protein
insertion in the cell membrane or for exocytosis - synthesis site in the cytoplasm
- AND
May be attached to the ER or scattered in the
cytoplasm
Plasma membrane - -A selectively-
permeable phospholipid bilayer forming the
boundary of the cells ATP - -Provides the energy needed for
synthesis reactions
cystoplasm - -cellular material between the
plasma membrane and the nucleus Messenger RNA - -Produced in the
consists of the cytosol and organelles nucleus, this molecule specifies the exact
sequence of amino acids of the protein to be
made
nucleus - -Control center of the cell,
houses DNA
Early prophase - -Centrioles move to
opposite ends of the cell.
Endoplasmic Reticulum - -a network of
tubular membranes within the cytoplasm of the
cell, occurring either with a smooth surface Late prophase - -Nuclear membrane and
(smooth endoplasmic reticulum) or studded with nucleolus disintegrate
ribosomes (rough endoplasmic reticulum)
involved in the transport of materials.
Anaphase - -Chromosomal centromeres
split and chromosomes migrate apart to opposite
A - Glycocalyx AND Identification "tags" for the ends of the cell
cell
B - Polar regionof phospholipid AND Hydrophilic
portion of phospholipid
Metaphase - -Chromosomes align on the
C - Nonpolar region of phospholipid
spindle equator in the middle
D - Integral protein.
E - Peripheral protein - -
Telophase - -Chromosomes uncoil to form
chromatin
Transfer RNA - -Act as "interpreter"
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, NU Bio 201 Ch. 3 Test Questions and Answers Rated A
junction
Nucleus - -Houses DNA and RNA weblike strands of transmembrane proteins that
fues together the outer surface of adjacent
plasma membranes to seal off passageways
Microtubules - -Hollow cytoskeletal
elements that act as organizers for the
cytoskeleton Each daughter cell resulting from mitotic cell
division has exactly as many chromosomes as
the parent cell - -T
Endoplasmic reticulum - -Plays a role in
the synthesis of steroid-based hormones and
proteins. Apoptosis is programmed cell suicide; cancer
cells do not undergo this process - -T
Ribosomes - -The actual site of protein
synthesis Final preparation for cell division is made during
the cell life cycle subphase called G2 - -T
Nucleoli - -Dense spherical bodies in the
nucleus that are the synthesis site for ribosomal In osmosis, movement of water occurs toward
RNA the solution with the lower solute concentration -
-F
Gap Junctions - -Communicating junction
connect through connexins, membrane proteins A process by which large particles may be taken
that form tiny fluid filled tunnels. not fused into the protection of the body by invaders like
together bacteria, or for disposing of old or dead cells is
AND called phagocytosis - -T
Present in electrically excitable tissues
The orderly sequence of the phases of mitosis is
Desmosomes - -Type of anchoring junction prophase, metaphase, anaphase, and telophase
AND - -T
Abundant in tissues subjected to great
mechanical stress
Diffusion movement always occurs from areas of
greater to areas of lesser concentration - -F
adherens junctions - -a dense layer of
proteins on the inside of the plasma membrane
that attaches both to membrane proteins and to Facilitated diffusion always requires a carrier
microfilaments of the cytoskeleton, form protein - -F
adhesion belts
Interstitial fluid represents one type of
Tight Junctions - -Type of anchoring extracellular material - -T
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A - SMOOTH ER: Site of synthesis of lipid and molecules that recognize specific amino acids
steroid molecules and nucleotide base sequences
B- MITOCHONDRIA: Produces ATP aerobically
C - LYSOSOMES: Site of enzymatic breakdown
of phagocytized material AND Source of cell Synthetase enzymes - -Attaches the
autolysis. correct amino acid to its transfer RNA
D- MICROTUBULES: Forms the mitotic spindle
AND Replicate for cell division
E - GOLGI APPARATUS: Packages proteins for Ribosimal RNA - -Forms part of the protein
insertion in the cell membrane or for exocytosis - synthesis site in the cytoplasm
- AND
May be attached to the ER or scattered in the
cytoplasm
Plasma membrane - -A selectively-
permeable phospholipid bilayer forming the
boundary of the cells ATP - -Provides the energy needed for
synthesis reactions
cystoplasm - -cellular material between the
plasma membrane and the nucleus Messenger RNA - -Produced in the
consists of the cytosol and organelles nucleus, this molecule specifies the exact
sequence of amino acids of the protein to be
made
nucleus - -Control center of the cell,
houses DNA
Early prophase - -Centrioles move to
opposite ends of the cell.
Endoplasmic Reticulum - -a network of
tubular membranes within the cytoplasm of the
cell, occurring either with a smooth surface Late prophase - -Nuclear membrane and
(smooth endoplasmic reticulum) or studded with nucleolus disintegrate
ribosomes (rough endoplasmic reticulum)
involved in the transport of materials.
Anaphase - -Chromosomal centromeres
split and chromosomes migrate apart to opposite
A - Glycocalyx AND Identification "tags" for the ends of the cell
cell
B - Polar regionof phospholipid AND Hydrophilic
portion of phospholipid
Metaphase - -Chromosomes align on the
C - Nonpolar region of phospholipid
spindle equator in the middle
D - Integral protein.
E - Peripheral protein - -
Telophase - -Chromosomes uncoil to form
chromatin
Transfer RNA - -Act as "interpreter"
1/5
, NU Bio 201 Ch. 3 Test Questions and Answers Rated A
junction
Nucleus - -Houses DNA and RNA weblike strands of transmembrane proteins that
fues together the outer surface of adjacent
plasma membranes to seal off passageways
Microtubules - -Hollow cytoskeletal
elements that act as organizers for the
cytoskeleton Each daughter cell resulting from mitotic cell
division has exactly as many chromosomes as
the parent cell - -T
Endoplasmic reticulum - -Plays a role in
the synthesis of steroid-based hormones and
proteins. Apoptosis is programmed cell suicide; cancer
cells do not undergo this process - -T
Ribosomes - -The actual site of protein
synthesis Final preparation for cell division is made during
the cell life cycle subphase called G2 - -T
Nucleoli - -Dense spherical bodies in the
nucleus that are the synthesis site for ribosomal In osmosis, movement of water occurs toward
RNA the solution with the lower solute concentration -
-F
Gap Junctions - -Communicating junction
connect through connexins, membrane proteins A process by which large particles may be taken
that form tiny fluid filled tunnels. not fused into the protection of the body by invaders like
together bacteria, or for disposing of old or dead cells is
AND called phagocytosis - -T
Present in electrically excitable tissues
The orderly sequence of the phases of mitosis is
Desmosomes - -Type of anchoring junction prophase, metaphase, anaphase, and telophase
AND - -T
Abundant in tissues subjected to great
mechanical stress
Diffusion movement always occurs from areas of
greater to areas of lesser concentration - -F
adherens junctions - -a dense layer of
proteins on the inside of the plasma membrane
that attaches both to membrane proteins and to Facilitated diffusion always requires a carrier
microfilaments of the cytoskeleton, form protein - -F
adhesion belts
Interstitial fluid represents one type of
Tight Junctions - -Type of anchoring extracellular material - -T
2/5
