Chapter 4 Bio
Mitochondria are found in
both plant cells and animal cells
Which of the following is a correct match of a molecule and the location where it is principally used
glucose - lysosome
The stack of thylakoids labeled "A" in this figure is called
granum
What does the folding of the mitochondrial inner membrane, shown here, provide?
greater surface area for ATP production
The cell walls of bacterial cells and plant cells function in
maintaining cell shape.
Which of the following organelles lacks a membrane?
ribosomes
The main structural component of a plant cell wall is
cellulose.
What function does the nucleolus have
synthesizes ribosomal RNA
Which of the following is a correct match?
lysosomes - cellular digestion
Which of the following is a function of the nucleus
acts as the control center of the cell
Which is the most common type of intercellular junction between cells of the bladder?
adhesion junctions
Which of the following is a type of intracellular protein?
all of the above
Receptor proteins allow a cell to
bind to signal proteins from other parts of the body.
Which of the following human cells would contain cilia?
cell from the trachea (windpipe)
Plant cells have plasmodesmata that
connect the cytoplasm of one cell with that of another.
All cells have some characteristics in common; both prokaryotic and eukaryotic cells have
cytoplasm, a plasma membrane, and DNA.
Surface-to-volume ratio is an important characteristic for cell function; some cells increase their ratio by
developing finger-like projections
A prokaryotic cell
does not have a membrane bound nucleus
Compared with a eukaryotic cell, a prokaryotic cell
lacks organelles beyond ribosomes.
Carrie would like to observe the cilia on the surface of a live paramecium—a single celled organism. The best device to do this would be a(n)
light microscope
A cell that cannot produce enough energy to function properly most likely has a problem with its
mitochondria
Which of the following organelles would be abundant in a sperm cell that is actively swimming towards an egg cell?
mitochondria
Which of the following is a correct matching of an organelle and its function
mitochondrion - cellular respiration
Both plants and animals need mitochondria to
produce ATP
In which way are vesicles different from vacuoles?
they are smaller
Which of the following is a function of glycoproteins?
to permit cells to recognize one another
Mitochondria and chloroplasts are similar in that they both ________, but are different in that mitochondria, but not chloroplasts, _______
are involved in energy conversions; are found in nearly all eukaryotic cells.
Receptor proteins
bind to a signal molecule and bring about a cellular response.
Without gap junctions in certain tissues
cells would not be able to communicate with each other.
Chromosomes are made from
condensed chromatin
The glycoproteins found in the plasma membrane function in what capacity?
establishing the identity of the cell
Which of the following is involved in the breakdown of damaged organelles?
lysosome
Which of the following allows eukaryotic cells and their organelles to move
the cytoskeleton
Which organelle modifies the contents within vesicles and then repackages them for export?
Golgi apparatus
Which of the following is the correct sequence through the endomembrane system for material that is destined to be secreted from the cell?
rough endoplasmic reticulum - Golgi apparatus - plasma membrane
Eukaryotic cells have DNA enclosed in a double membrane called the nucleus. The nucleus functions to
separate the DNA from other activities that occur in the cytoplasm
As a molecule moves through the plasma membrane it passes through
a hydrophilic layer of phospholipid heads, then a hydrophobic layer of phospholipid tails, and then another hydrophilic layer of phospholipid heads
Plant cells are connected to one another by
plasmodesmata
Plant cells have walls but do not have plasma membranes
False
A general eukaryotic cell is typically in the area of
10-100 mm.
Which of the following is a possible function of the extracellular matrix in animal cells
All
Which of the following organelles would form a membrane-bound package, also known as a vesicle?
Golgi apparatus
Both the nuclear membrane and the plasma membrane are composed of phospholipids.
True
The hydrophilic parts of the plasma membrane are oriented towards both the outside of the cell and the cytoplasm.
True
There is an antibiotic called streptomycin that inhibits the function of bacterial ribosomes. Consequently, as the bacterial cells die, the person taking the antibiotics gets better. In other words, the antibiotic destroys bacteria by
not allowing them to produce proteins.
Which of the following structures would not be found only in a eukaryotic cell
nucleus
The nucleus has a double membrane that encloses the DNA. Inside the nucleus, the DNA acts as the template to produce mRNA and ribosomes. To exit the nucleus, these molecules must
pass through pores that span both membranes
Since the plasma membrane blocks the passage of all but a few molecules with specific traits, it is necessary for other molecules to
pass through the membrane via pores made of carbohydrates.
Which of the following statements describes the function of a chloroplast?
It converts light energy into chemical energy.
What must materials pass through to enter or leave a cell?
plasma membrane
Cell size is limited because ________ is critical to a cell's function
surface-area-to-volume ratio
Some proteins within a cell can be viewed with
electron microscope
Which statement below is correct when comparing plant and animal cells
Both plant and animal cells have a plasma membrane, and plant cells also have a cell wall.
Proteins within the extracellular matrix play a role in communicating between the matrix and the cytoskeleton.
False
A tadpole that is undergoing metamorphosis into a frog and no longer requires a tail. Which organelle would help assist in the tail loss?
lysosomes
Identify the organelle - function pairing that is mismatched
plasma membrane - outermost barrier of a plant cell
Which feature is found in all cells?
plasma membrane composed of phospholipids.
Which structures determine the flexibility of the extracellular matrix
proteins
Chloroplasts and mitochondria are similar in that they both
Contain DNA
Below is a diagram of a bacterium. What part of the bacterial cell does Y represent?
Nucleiod
A cell being observed under a microscope has a cell wall, plasma membrane, ribosomes, and chromosomal material that is not found in a nucleus. Based on this information, the cell could be a
bacterial cell.
