Chapter 06 Flashcards

Which of the following is the smallest structure that would most likely be visible with a standard (not super resolution) research-grade light microscope

Mitochondria 

Which of the following frequently imposes a limit on cell size?

Ratios of surface area to volume

In bacteria, DNA will be found in ____

The nucleoid

Which of the following macromolecules leave the nucleus of a eukaryotic cell through pores in the nuclear membrane?

mRNA

Rough ER are “studded” with:

Ribosomes

Arrays of filaments in eukaryotic cells that give the cell its shape and its capacity to move are called the 

Cytoskeleton 

All of the following are part of a prokaryotic cell except

Am endoplasmic reticulum (ER) 

If a cell had no golgi apparatus it could not 

Package protein

A cell with a predominance of smooth endoplasmic reticulum is likely specialized to ____

Synthesize large quantities of lipids

Which of the following is present in prokaryotic cells?

Ribosomes

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

Ribosomes, rough and smooth ER

The function of the rough ER is 

To synthesize proteins that are secreted as glycoproteins 

The region of a bacterial cell that contains the genetic material is called the ___

Nucleoid

Cell motility, which includes changes both in cell location and in the movement of cell parts, requires interactions of the cytoskeleton _____

With motor proteins

The endosymbiont theory explains the origins of ____

Mitochondria and chloroplasts

The network of fibers that organizes structures and activities in a cell ___

Is the cytoskeleton 

Cell motility, which includes changes both in cell location and in the movement of cell parts, requires interactions of the cytoskeleton _____

With motor proteins

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

In the rough ER

A substance moving from outside the cell into the cytoplasm must pass through ___

The plasma membrane

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.

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

The function of the rough endoplasmic reticulum (RER) is ____

To synthesise proteins that are secreted as glycoproteins

The endoplasmic reticulum is part of the endomembrane system, which also includes the ___

Nuclear envelope, golgi apparatus, lysosomes, and vesicles