chapter 4 quiz
a
Chloroplasts are found in _____. a) plant cells and some protists b) animal cells only c) both plant cells and animal cells d) neither plant cells nor animal cells e) animal cells and bacterial cells but not in plant cells
d
A certain cell has mitochondria, ribosomes, smooth and rough endoplasmic reticulum, and other parts. Based on this information, it could NOT be _____. a) a cell from a pine tree b) a grasshopper cell c) a yeast (fungus) cell d) a bacterium e) actually, it could be any of the above
scanning electron microscope
A magnified picture of the detailed architecture of cell surfaces can best be obtained from a _____.
nucleus
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 _____.
golgi apparatus
A researcher made an interesting observation about a protein made by the rough endoplasmic reticulum 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 altered in the _____.
a
Bacterial cells are prokaryotic; unlike a typical eukaryotic cell they _____. a) lack a nucleus b) have a smaller nucleus c) lack a plasma membrane d) have fewer internal membranous compartments e) have a greater variety of organelles
er
Membrane proteins are synthesized by ribosomes that are attached to the _____.
a
Mitochondria and chloroplasts are similar in that they both _____; they are different in that chloroplasts, but not mitochondria, _____. a) have a double membrane...carry out photosynthesis b) have many internal membranes that increase their internal surface area...are found in plants c) have an internal 9+2 arrangement of microtubules...also have centrioles d) deal with energy transformations..are found in only in eukaryotes e) have a double membrane...contain DNA
b
Mitochondria appear in the greatest numbers in cells that are _____. a) reproducing b) metabolically active c) dead d) metabolically inactive e) undergoing cell division
e
Most of the DNA in a eukaryotic cell is in _____. a) the cytoskeleton b) the mitochondria c) the endomembrane system d) the cytoplasm e) the nucleus
b
Of the following organelles, which group is involved in manufacturing the substances needed by the cell? a) lysosome, vacuole, ribosome b) ribosome, rough er, smooth er c) vacuole, rough er, smooth er d) smooth er, ribosome, vacuole e) rough er, lysosome, vacuole
light microscope, the specimen is alive
Sara would like to film the movement of chromosomes during cell division. Her best choice for a microscope would be a _____ because...
c
The cell junctions in plant cells that provide channels between adjacent cells are generally _____. a) anchoring junctions b) gap junctions c) plasmodesmata d) tight junctions e) synapses
d
The general function of _____ is the breakdown of substances. a) chloroplasts b) ribosomes c) cell junctions d) peroxisomes e) Golgi apparatus
a
The internal skeleton of a cell is composed of _____. a) microtubules, intermediate filaments, microfilaments b) cellulose and intermediate filaments c) cellulose, microtubules, centrioles d) microfilaments e) microfilaments and cellulose
its need for enough surface area to make exchanges with its environment
The maximum size of a cell is limited by _____.
10, 100, micrometers
The normal size range for a typical eukaryotic cell is ___-___ ______.
c
The rough er can be considered to be in which general category of organelles? a) breakdown b) energy-processing c) manufacturing d) support between cells e) communication between cells
plasma membrane
To enter or leave a cell, substances must pass through the _____.
c
Your intestine is lined with individual cells. No fluids leak between these cells from the gut into your body because the intestinal cells are _____. a) fused together into one giant cell b) bound together by plasmodesmata c) bound together by tight junctions d) bound together by gap junctions e) bound together by anchoring junctions
c
Basal bodies are most closely associated with which one of the following cell components? a) bacterial flagella b) centrioles c) cilia d) the central vacuole e) mitochondria
b
In muscle cells the _____ is/are specialized for the storage and release of calcium. a) mitochondria b) smooth endoplasmic reticulum c) the Golgi apparatus d) contractile vacuoles e) rough endoplasmic reticulum
b
Lysosomes are derived from _____ and function in _____. a) mitochondria...anaerobic respiration b) the Golgi apparatus and rough er...digestion of worn-out organelles c) microtubule organizing centers...storage of ATP d) symbiotic bacteria...extrachromosomal inheritance e) nucleoli...aerobic respiration
b
The protein actin is a component of a(n) _____. a) intermediate filament b) microtubule c) tubulin d) microfilament e) organelle
a
The purpose of cellular respiration is the production of which of the following? a) ATP b) oxygen c) carbon dioxide d) glucose e) all of the above
d
The term "resolving power" refers to which of the following: a) the apparent increase in the size of an object b) the source of the illumination c) the depth of focus d) the clarity of the image in showing 2 objects as separate e) the type of cell being observed
e
Three or four of the following cellular organelles possess membranes. Which one, if any, does NOT possess membranes? If all the listed organelles possess differentially permeable membranes, choose answer e. a) nucleus b) chloroplasts c) mitochondria d) lysosomes e) all of the above
a
Which one of the following is the most likely consequence for a cell lacking functional lysosomes? a) the cell becomes crowded with undegraded wastes b) the cell dies bc its ATP-synthesizing mechanisms are missing c) the cell dies from a lack of enzymes to catalyze metabolic reactions d) the cell is unable to reproduce itself e) the cell is unable to grow to a mature size and always remains small
a
Which one of the following structures is directly involved in the passage of electrical signals between cells as, for example, in the vertebrate heart? a) gap junctions b) chemical synapses c) anchoring junctions d) tight junctions e) neuromuscular junctions
b
You would expect a cell with an extensive Golgi apparatus to _____. a) make a lot of ATP b) secrete a lot of material c) move actively d) perform photosynthesis e) store large quantities of food
e
Cilia and flagella move due to energy provided by the enzymatic breakdown of ATP by which of the following? a) actin b) pseudopodia c) basal bodies d) myosin e) dynein arms
d
Dye injected into a plant cell might be able to enter an adjacent cell through a _____. a) tight junction b) microtubule c) anchoring junction d) plasmodesmata e) gap junction
a
What are the inner folds of the mitochondria called? a) cristae b) matrix c) stroma d) grana e) tubules
surface to volume ratio
What do limits on maximum cell size depend on?
d
What is the function of the nucleolus? a) to contain the hereditary blueprint of the cell b) to modify substances made on the endoplasmic reticulum c) to organize the spindle fibers for cell division d) to manufacture ribosomes e) none of the above
b
When elongated, tube-shaped cells from the lining of the intestine are treated with a certain chemical, the cells sag and become round blobs. The internal structures disrupted by this chemical are probably _____. a) cell junctions b) microtubules c) rough er d) mitochondria e) dynein arms
smooth er
When isolated liver cells are combined with toxins, initial processing in the ______________ increases the solubility of those compounds as an initial step in their excretion.
b
Where would you expect to find contractile proteins in a cell? a) lysosomes b) cytoskeleton c) nucleus d) smooth er e) chloroplasts
a
Which cellular organelle is required for photosynthesis in eukaryotic cells? a) chloroplast b) nucleus c) lysosome d) Golgi apparatus e) mitochondrion
d
Which of the following are found in prokaryotic cells? a) golgi apparatuses b) mitochondria c) nucleoli d) proteins e) all of the above
a
Which of the following organelles would be especially abundant in the pancreatic cells that produce digestive enzymes? a) rough er b) smooth er c) lysosomes d) microfilaments e) mitochondria
c
Which of the following statements best describes the function of the contractile vacuole? a) It contains trapped bacteria to be digested by the lysosomes. b) It contains the cell sap. c) It eliminates excess water from the cytoplasm of freshwater protists. d) It converts light energy to chemical energy. e) It converts light energy to physical energy.
mitochondria
Which of the following structures are NOT found in prokaryotic cells?
b
Which of the following would NOT be found in a cell's cytoplasm? a) a ribosome b) the nucleus c) a mitochondrion d) a microtubule e) fluid in which most organelles are found
c
Which of these is NOT a function of the endomembrane system? a) division of the cell into compartments b) synthesis of molecules c) control center of the cell d) export of molecules e) storage of molecules
