GCD 3033 Chapter 20
Supportive tissues, such as bone or wood, derive their strength from:
cells
extracellular matrix
cytoskeleton filaments - answer extracellular matrix
What gives the plant cell wall its tensile strength?
starch
cellulose
actin
myosin - answer cellulose
A plant cell elongates in which direction?
Perpendicular to the orientation of the cellulose microfibrils
Parallel to the orientation of the cellulose microfibrils - answerPerpendicular to the
orientation of the cellulose microfibrils
Which of the following determines the direction that cellulose is laid down in the
extracellular space of a plant cell?
The amount of turgor pressure within a cell
The availability of sugar monomers for cellulose elongation
The orientation of microtubules on the cytoplasmic side of the plasma membrane -
answerThe orientation of microtubules on the cytoplasmic side of the plasma membrane
Which of the following tissues is characterized by a plentiful extracellular matrix?
Connective
Epithelial
, Nervous
Muscular - answerConnective
In connective tissues, the tensile strength of the tissue is chiefly provided by:
proteoglycans.
collagen.
actin.
cellulose. - answercollagen
Fibroblasts are found in which tissues?
Connective
Epithelial
Neural
Muscular - answerConnective
Cells export collagen to the extracellular matrix as:
procollagen (a single-stranded collagen polypeptide chain with additional peptides at
each end).
a single-stranded collagen polypeptide chain.
a triple-stranded collagen molecule.
collagen fibrils (made up of collagen molecules).
collagen fibers (made up of collagen fibrils). - answerprocollagen (a single-stranded
collagen polypeptide chain with additional peptides at each end)
A fibroblast can attach indirectly to collagen via which type of protein?
Proteoglycan
Cadherin
Fibronectin
Supportive tissues, such as bone or wood, derive their strength from:
cells
extracellular matrix
cytoskeleton filaments - answer extracellular matrix
What gives the plant cell wall its tensile strength?
starch
cellulose
actin
myosin - answer cellulose
A plant cell elongates in which direction?
Perpendicular to the orientation of the cellulose microfibrils
Parallel to the orientation of the cellulose microfibrils - answerPerpendicular to the
orientation of the cellulose microfibrils
Which of the following determines the direction that cellulose is laid down in the
extracellular space of a plant cell?
The amount of turgor pressure within a cell
The availability of sugar monomers for cellulose elongation
The orientation of microtubules on the cytoplasmic side of the plasma membrane -
answerThe orientation of microtubules on the cytoplasmic side of the plasma membrane
Which of the following tissues is characterized by a plentiful extracellular matrix?
Connective
Epithelial
, Nervous
Muscular - answerConnective
In connective tissues, the tensile strength of the tissue is chiefly provided by:
proteoglycans.
collagen.
actin.
cellulose. - answercollagen
Fibroblasts are found in which tissues?
Connective
Epithelial
Neural
Muscular - answerConnective
Cells export collagen to the extracellular matrix as:
procollagen (a single-stranded collagen polypeptide chain with additional peptides at
each end).
a single-stranded collagen polypeptide chain.
a triple-stranded collagen molecule.
collagen fibrils (made up of collagen molecules).
collagen fibers (made up of collagen fibrils). - answerprocollagen (a single-stranded
collagen polypeptide chain with additional peptides at each end)
A fibroblast can attach indirectly to collagen via which type of protein?
Proteoglycan
Cadherin
Fibronectin
