1.The membranous compartmentalization of a cell
a.divides the cell into two equal-sized halves.
common in prokaryotes and eukaryotes.
c.requires the presence of a large central vacuole.
d.allows incompatible metabolic processes to occur in the same cell
e.requires the presence of a cell wall.
2.Under which of the following conditions would you expect to find a cell with a predominance of free ribosomes (as opposed to ER-bound ribosomes)?
a. a cell that is constructing its cell wall or extracellular matrix
b.a cell that is secreting proteins
c.a cell that is enlarging its vacuole
d.a cell that is producing cytoplasmic enzymes
e.a cell that is digesting food particles
3.Unlike animal cells, plant cells have ________ and ________.
a.chloroplasts . . . cell membranes
b.chloroplasts . . . cell walls
c.cell walls . . . a nucleus
d.mitochondria . . . chloroplasts
e.mitochondria . . . large central vacuoles
4.Which of the following cell types would be expected to be especially enriched in lysosomes?
a. a cell specialized for protection, for example, a skin cell.
b. a cell specialized for contraction, for example, a muscle cell.
c. A cell specialized for communication, for example, a neuron.
d. a cell specialized for hormone secretion, for example, a pancreatic cell.
e.a cell specialized for phagocytosis, for example, a white blood cell.