Chapter 4 Inside the Cell

Plant we

plasmodesmata

Plants need mitochondria to ________.

produce ATP

Chromosomes are ________.

condensed chromatin

Actin filaments participate in ________.

All of the choices are correct.

Chloroplasts and mitochondria are similar in that they both ________.

All of the choices are correct.

Which of the following is an incorrect match of molecule to location?

All of the choices are correct.

Plant cells have walls but do not have plasma membranes.

False

The nuclear membrane differs from the plasma membrane in that the nuclear membrane is a single layer of phospholipids.

False

Where do the vesicles originate that are involved in secretion?

Golgi apparatus

A cell responds to the binding of a molecule with a receptor protein when the protein changes shape.

True

Polysaccharides can be found in the capsule of bacteria as well as the extracellular matrix of animals.

True

The plasma membrane's hydrophilic part faces the outside of the cell and the cytoplasm.

True

Some proteins within a cell can be viewed with ________.

an electron microscope

Which of the following is not a possible function of the extracellular matrix in animals?

assist in movement of organelles

A bacteria's cytoplasm contains ________.

both DNA and enzymes

Vacuoles differ from vesicles in that vacuoles ________.

both larger and can be specialized

Because eukaryotic cells are so large, movement of organelles via the ___ are critical.

cytoskeleton

A prokaryotic cell ________.

does not have a membrane-bound nucleus

Metabolic reactions are compartmentalized in a cell by the ________.

endomembrane system

Disease-causing bacteria often attach to cells they attack. The bacterial structures used to aid that attachment are ________.

fimbriae

Without tight junctions in certain tissues ________.

fluids may leak out past the barrier the junction would create

A stack of thylakoids is called a ________.

granum

Cell walls function in ________.

maintaining cell shape

Which of the following is an incorrect match?

mitochondria - protein recycling

Without a centrosome, cells would not be able to ________.

move organelles around the cytoplasm

Fig. 4.1 is a diagram of a bacterium. What structure does Y represent? (see picture on document. I can't get the pictures to copy and paste!)

nucleoid

9. Without receptor proteins, a cell would not be able to ________.

receive signals from other parts of the body

Which of the following is the correct sequence for an altered protein that is secreted from the cell?

rough endoplasmic reticulum - Golgi apparatus - plasma membrane

. ___ are bacterial structures involved in the passage of DNA into or out of the cell.

sex pili

Cell size is limited because ___ is critical to a cell's function.

surface area to volume ratio