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.