CHEM 210 Biochemistry Module 1 Exams' Portage
Learning Questions and Verified Answers, 100%
Guarantee Pas
what is a key distinction between prokaryotic and eukaryotic cell membranes -
ANSWER-absence of sterol lipids (such as cholesterol) which play a major role in
eukaryotic membrane composition
organisms that have cell walls - ANSWER-bacteria, plants, fungi, algae
cell walls - ANSWER-help to form shape of cell, rigid cant change shape mostly,
provides support, structure, and protection
cell envelope - ANSWER-combination of the cell membrane and the outer membrane
(cell wall)
bacterial cell wall - ANSWER-contains peptidoglycan
peptidoglycan - ANSWER-peptide- polysaccharide matrix, can vary in thickness,
essential for bacterial survival protects from environmental stress
archaea cell walls - ANSWER-lack peptidoglycan instead composed of surface layer
proteins S Layer
S layer proteins - ANSWER-archaea cell wall, provide physical and chemical protective
barrier to harsh environments archaea is found in, specific protein of S layer varies
yeast cell walls - ANSWER-composed of mannoproteins
mannoproteins - ANSWER-highly glycosylated polypeptides called mannan and
mannose
fungi cell walls - ANSWER-cellulose and chitin
cell walls in eukaryotic cells - ANSWER-varies
- polysaccharides- cellulose and pectin
- fungi- cellulose and chitin
- yeasts- mannoproteins
- algae- silica
diatoms - ANSWER-type of algae, have thick cell walls containing silica
silica - ANSWER-in cell walls of algae, found in glass, making them very rigid
, cytoplasm - ANSWER-- open volume within a cell
- mostly water with dissolved substances
- organelles found here
organelles - ANSWER-Structures specialized to perform distinct processes within a cell
organelle in both eukaryotes and prokaryotes - ANSWER-ribosomes
organelle called the brain of the cell - ANSWER-nucleus
___ is the defining organelle of all eukaryotic cells - ANSWER-nucleus
___ is the command center of the cell - ANSWER-nucleus
genetic material of prokaryotic cells is found where - ANSWER-cytoplasm
nucleolus - ANSWER-within nucleus, site of ribosome synthesis
flow of DNA to genetic material - ANSWER-DNA--> chromatin--> chromosomes
ribosomes - ANSWER--organelles responsible for protein synthesis
- in cytoplasm of prokaryotic
- in ER of eukaryotic
Endoplasmic Reticulum - ANSWER--a series of membrane enclosed sacs and
interconnected tubes
- continuous with nuclear membrane
interconnected tubes of ER - ANSWER-lumen
2 components of ER - ANSWER-rough ER and smooth ER
rough ER - ANSWER-has ribosomes on it, makes proteins released into cytoplasm to
carry out specific cell functions
smooth ER - ANSWER-make lipids/fats/sterols, no ribosomes
largest organelle in the cell - ANSWER-nucleus
golgi complex - ANSWER-series of interconnected flattened sacs located between
nucleus and cytoplasmic membrane
- where proteins undergo modifications and packed before distribution
____ called the distribution center of cell - ANSWER-golgi complex
Learning Questions and Verified Answers, 100%
Guarantee Pas
what is a key distinction between prokaryotic and eukaryotic cell membranes -
ANSWER-absence of sterol lipids (such as cholesterol) which play a major role in
eukaryotic membrane composition
organisms that have cell walls - ANSWER-bacteria, plants, fungi, algae
cell walls - ANSWER-help to form shape of cell, rigid cant change shape mostly,
provides support, structure, and protection
cell envelope - ANSWER-combination of the cell membrane and the outer membrane
(cell wall)
bacterial cell wall - ANSWER-contains peptidoglycan
peptidoglycan - ANSWER-peptide- polysaccharide matrix, can vary in thickness,
essential for bacterial survival protects from environmental stress
archaea cell walls - ANSWER-lack peptidoglycan instead composed of surface layer
proteins S Layer
S layer proteins - ANSWER-archaea cell wall, provide physical and chemical protective
barrier to harsh environments archaea is found in, specific protein of S layer varies
yeast cell walls - ANSWER-composed of mannoproteins
mannoproteins - ANSWER-highly glycosylated polypeptides called mannan and
mannose
fungi cell walls - ANSWER-cellulose and chitin
cell walls in eukaryotic cells - ANSWER-varies
- polysaccharides- cellulose and pectin
- fungi- cellulose and chitin
- yeasts- mannoproteins
- algae- silica
diatoms - ANSWER-type of algae, have thick cell walls containing silica
silica - ANSWER-in cell walls of algae, found in glass, making them very rigid
, cytoplasm - ANSWER-- open volume within a cell
- mostly water with dissolved substances
- organelles found here
organelles - ANSWER-Structures specialized to perform distinct processes within a cell
organelle in both eukaryotes and prokaryotes - ANSWER-ribosomes
organelle called the brain of the cell - ANSWER-nucleus
___ is the defining organelle of all eukaryotic cells - ANSWER-nucleus
___ is the command center of the cell - ANSWER-nucleus
genetic material of prokaryotic cells is found where - ANSWER-cytoplasm
nucleolus - ANSWER-within nucleus, site of ribosome synthesis
flow of DNA to genetic material - ANSWER-DNA--> chromatin--> chromosomes
ribosomes - ANSWER--organelles responsible for protein synthesis
- in cytoplasm of prokaryotic
- in ER of eukaryotic
Endoplasmic Reticulum - ANSWER--a series of membrane enclosed sacs and
interconnected tubes
- continuous with nuclear membrane
interconnected tubes of ER - ANSWER-lumen
2 components of ER - ANSWER-rough ER and smooth ER
rough ER - ANSWER-has ribosomes on it, makes proteins released into cytoplasm to
carry out specific cell functions
smooth ER - ANSWER-make lipids/fats/sterols, no ribosomes
largest organelle in the cell - ANSWER-nucleus
golgi complex - ANSWER-series of interconnected flattened sacs located between
nucleus and cytoplasmic membrane
- where proteins undergo modifications and packed before distribution
____ called the distribution center of cell - ANSWER-golgi complex
