multiple choice ch4- a tour of the cell

a cell possesses ribosomes, a plasma membrane, a cell wall, and other parts. it could not be

a. a cell from a mouse

a mutant plant cell unable to manufacture cellulose would be unable to

a. build a cell wall

a researcher made an interesting observation about a protein made by the rough er and eventually used to build a cell's plasma membrane. the protein in the membrane was actually slightly different from the protein made in the er. the protein was probably changed the

a. golgi apparatus

if the nucleus is a cell's "control center," and chloroplasts is "solar collectors," which of the following might be called the cell's combination "food processor" and "garbage disposer"?

a. lysosome

the internal skeleton of a cell is composed of

a. microtubules, intermediate filaments, and microfilaments

of the following organelles, which group is involved in manufacturing substances needed by the cell?

a. ribosome, rough er, smooth er

which of the following consist of prokaryotic cells?

b. bacteria

when elongated, tube-shaped cells from the lining of the intestine are treated with a certain chemical, the cells sagged become round blobs. the internal structure disrupted by this chemical are probably

b. microtubules

the electron microscope has been particularly useful in studying prokaryotes, because

b. prokaryotes are so small

you would expect a cell with an extensive golgi apparatus to

b. secrete a lot of material

which of the following stores calcium, important in muscle contraction?

b. smooth er

which of the following would not be considered part of a cell's cytoplasm?

b. the nucleus

if a cell's chromatin were damaged, the cell would

c. go out of control

cellular metabolism is

c. the chemical activity of a cell

a cell has mitochondria, ribosomes, smooth er, and other parts. based on this information, it could not be

d. a bacterium

dye injected into a cell might be able to enter an adjacent cell through a

d. plasmodesma

which of the following correctly matches an organelle with its function

e. central vacuole- storage

organelles involved in energy conversion are the

e. mitochondrion and chloroplast

a plant cell was grown in a test tube containing radioactive nucleotides, the parts from which dna is built. later examination of the cell showed the radioactivity to be concentrated in the

e. nucleus

to enter or leave a cell, substances must pass through

e. the plasma membrane

the maximum size of a cell is limited by

its need for enough surface area for exchange with its environment