Bio 111 Exam 3 UPDATED Questions
and CORRECT Answers
nuceloid - CORRECT ANSWER the central region in a prokaryotic cell where the cell's
chromosome and genetic material (DNA) is located
chromosome - prokaryotic cell - CORRECT ANSWER most prominent structure in
prokaryotic cell, contains DNA, which contains genes that code for RNA
- most bacterial & archaeal species have single large circular of these that contains large DNA
molecule associated w/ proteins
plasmids - CORRECT ANSWER small supercoiled rings of DNA found naturally in some
bacterial cells in addition to the main bacterial chromosome, contain genes physically
independent of cellular chromosome
organelles - CORRECT ANSWER compartmentalized structures specialized to perform
distinct processes within a cell
fimbriae - CORRECT ANSWER needlelike projection that extends from plasma
membrane and promotes attachment to other cells or surfaces
flagellum - CORRECT ANSWER a long, hairlike structure that grows out of a cell and
enables the cell to move
cytosol - CORRECT ANSWER fluid portion between plasma membrane and organelles
nucleus - CORRECT ANSWER Chromosomes, nucleolus, nuclear lamina
Double envelope membrane
, nuclear pores - CORRECT ANSWER holes in the nuclear envelope that allow materials to
pass in and out of the nucleus
nucleus function - CORRECT ANSWER Information storage/transmission and ribosome
subunit assembly
nucleolus - CORRECT ANSWER found in nucleus, manufacture and process RNA that
assembles into subunits
nuclear lamina - CORRECT ANSWER lattice sheet of fibrous proteins that stiffens double
membrane of nucleus and maintains shape
ribosome - CORRECT ANSWER RNA & protein complex
no membrane
rough er - CORRECT ANSWER contains network of branching sacs & associated
ribosomes
single membrane w/ receptors for entry of selected proteins
rough bc of attached ribosomes
rough er function - CORRECT ANSWER protein synthesis & processing
smooth er - CORRECT ANSWER contains network of branching sacs & enzymes for
synthesizing or modifying lipids
single membrane
smooth er function - CORRECT ANSWER lipid synthesis & processing
golgi apparatus - CORRECT ANSWER contains distinct cisternae, often as stack of
flattened vesicles
and CORRECT Answers
nuceloid - CORRECT ANSWER the central region in a prokaryotic cell where the cell's
chromosome and genetic material (DNA) is located
chromosome - prokaryotic cell - CORRECT ANSWER most prominent structure in
prokaryotic cell, contains DNA, which contains genes that code for RNA
- most bacterial & archaeal species have single large circular of these that contains large DNA
molecule associated w/ proteins
plasmids - CORRECT ANSWER small supercoiled rings of DNA found naturally in some
bacterial cells in addition to the main bacterial chromosome, contain genes physically
independent of cellular chromosome
organelles - CORRECT ANSWER compartmentalized structures specialized to perform
distinct processes within a cell
fimbriae - CORRECT ANSWER needlelike projection that extends from plasma
membrane and promotes attachment to other cells or surfaces
flagellum - CORRECT ANSWER a long, hairlike structure that grows out of a cell and
enables the cell to move
cytosol - CORRECT ANSWER fluid portion between plasma membrane and organelles
nucleus - CORRECT ANSWER Chromosomes, nucleolus, nuclear lamina
Double envelope membrane
, nuclear pores - CORRECT ANSWER holes in the nuclear envelope that allow materials to
pass in and out of the nucleus
nucleus function - CORRECT ANSWER Information storage/transmission and ribosome
subunit assembly
nucleolus - CORRECT ANSWER found in nucleus, manufacture and process RNA that
assembles into subunits
nuclear lamina - CORRECT ANSWER lattice sheet of fibrous proteins that stiffens double
membrane of nucleus and maintains shape
ribosome - CORRECT ANSWER RNA & protein complex
no membrane
rough er - CORRECT ANSWER contains network of branching sacs & associated
ribosomes
single membrane w/ receptors for entry of selected proteins
rough bc of attached ribosomes
rough er function - CORRECT ANSWER protein synthesis & processing
smooth er - CORRECT ANSWER contains network of branching sacs & enzymes for
synthesizing or modifying lipids
single membrane
smooth er function - CORRECT ANSWER lipid synthesis & processing
golgi apparatus - CORRECT ANSWER contains distinct cisternae, often as stack of
flattened vesicles
