Practice Test- Chapter 6 Bio

whats the functional connection between the nucleolus, nuclear pores, and the nuclear membrane?

subunits of ribosomes are assembled in the nucleolus and pass through the nuclear membrane via the nuclear pores

In which of the following sites might protein synthesis occur in a typical eukaryotic cell?

the cytoplasm, the rough endoplasmic reticulum, and the mitochondria

Cilia and flagella move due to the interaction of the cytoskeleton with which of the following?

motor proteins

Which of the following is/are likely to limit the maximum size of a cell?

All of the choices are correct.

Which of the following is a possible reason for grouping the peroxisomes with chloroplasts and mitochondria?

All of these organelles appear to increase in number by dividing.

Which of the following statements correctly describes a common characteristic of a plant cell wall and an animal cell extracellular matrix?

Both are permeable to water and small solutes.

Which of the following statements about chloroplasts and mitochondria is true?

Chloroplasts and mitochondria synthesize some of their own proteins.

In terms of cellular function, what is the most important difference between prokaryotic and eukaryotic cells?

Eukaryotic cells are compartmentalized, which allows for specialization.

Which of the following sequences represents the order in which a protein made in the rough endoplasmic reticulum might move through the endomembrane system?

Golgi apparatus → lysosome

the extracellular matrix of the animal cell has all of the following molecular components except

a middle lamella

Consider two cells with the same volume but with very different surface areas due to differences in their shapes. The cell with the larger surface area is likely to __________

be involved in the rapid uptake of compounds from the cell's environment

the organelle that is a plant cells compartment for the storage of inorganic ions such as potassium and chloride is the

central vacuole

animal cells have unique organelles called ______ that are composed of structures called ___

centrosomes; centrioles

Dye injected into a plant cell might be able to enter an adjacent cell through __________

plasmodesmata

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

plasmodesmata

which of the following groups is primarily involved in synthesizing molecules needed by the cell?

Ribosomes, rough endoplasmic reticulum, and smooth endoplasmic reticulum

What is the functional connection between the nucleolus, nuclear pores, and the nuclear membrane?

Subunits of ribosomes are assembled in the nucleolus and pass through the nuclear membrane via the nuclear pores.

Which of the following five membranes is most likely to have a lipid composition that is distinct from those of the other four

mitochondrial outer membrane

Which type of cell is most likely to have the largest number of mitochondria?

muscle cells in the legs of a marathon runner

Which of the following groups is primarily involved in synthesizing molecules needed by the cell?

ribosome, rough endoplasmic reticulum, smooth endoplasmic reticulum

Which of the following organelles might be found inside other organelles?

ribosomes, peroxisomes

You would expect a cell with an extensive Golgi apparatus to __________

secrete large amounts of protein

the function of the rough er

to synthesize proteins that are secreted as glycoproteins

Which of the following is FALSE?

Mitochondria contain ribosomes in the intermembrane space.

Your intestine is lined with individual cells. No fluids leak between these cells from the gut into your body. Why?

The intestinal cells are bound together by tight junctions.

Basal bodies are most closely associated with which of the following cell components?

cilia

basal bodies are most closely associated with which cell component

cilia

which statement is true of the cytoskeleton

components of the cytoskeleton often mediate the movement of organelles within the cytoplasm

Where would you expect to find proteins involved with movement of structures within a cell?

cytoskeleton

Consider a protein that is made in the rough endoplasmic reticulum. You observe that when the synthesis of the protein is completed, the protein is located in the ER membrane. Where else in the cell might this protein be found?

embedded in the plasma membrane, functioning in the transport of molecules into the cell

what is the most important difference between prokaryotic and eukaryotic cells?

eukaryotic cells are compartmentalized which allows for specialization

Chloroplasts and mitochondria are thought to be of prokaryotic origin. One piece of evidence that supports this hypothesis is that these organelles contain prokaryotic-like ribosomes. These ribosomes are probably most similar to ribosomes found __________.

in bacterial cells

A protein that ultimately functions in the plasma membrane of a cell is most likely to have been synthesized __________.

in the rough endoplasmic reticulum

a protein that ultimately functions in the plasma membrane of a cell is most likely to have been synthesized

in the rough er

the walls of plant cells are largely composed of polysaccharides and proteins that are synthesized

in the rough er and golgi apparatus

cell junctions in plant cells are called ____ and communicating junctions in animal cells are called ___

plasmodesmata; gap junctions

evidence that supports the prokaryotic origins of mitochondria and chloroplasts are all of the following except

that mitochondria and chloroplasts have multiple copies of linear DNA molecules associated with their inner membranes

your intestine is lined w individual cells. no fluid leaks between these cells from the gut into your body. why

the intestinal cells are bound by tight junctions

A dish of animal cells was grown in the presence of radioactive phosphorous. The phosphorous largely ended up in nucleotides inside the actively growing animal cells. In which cellular structure or structures would you predict the majority of the radioactive phosphorous to accumulate?

the nucleus

Which of the following is/are most likely to be involved in the process of producing proteins for a chloroplast or mitochondrion?

free cytoplasmic ribosomes

Which of the following organelles is UNLIKELY to show enhanced abundance in pancreatic cells that secrete large amounts of digestive enzymes?

free cytoplasmic ribosomes

Microtubules and microfilaments commonly work with which of the following to perform many of their functions?

golgi apparatus

Which of the following structures is found in eukaryotic but NOT prokaryotic cells?

mitochondria

microfilaments function is cell motility including __

muscle contraction, amoeboid movement, cytoplasmic streaming in plants