BISC 101 midterm | All Questions and Correct
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Cytoskeleton - (ANSWER)network of fibres that organize internal structure and
activities in the cell
What do the connections between cells function in? - (ANSWER)They coordinate
cell activities
What do both eukaryotic and prokaryotic cells have in common? -
(ANSWER)plasma membrane, cytoplasm, genetic material, ribosomes
Prokaryote description - (ANSWER)single, circular chromosome, plasmids, cell
wall
Examples of eukaryotic cells - (ANSWER)protists, fungi, plants, animals
List four reasons why eukaryotic cells have such complex compartmentalization -
(ANSWER)1. attachment of membrane bound proteins
2. incompatible reactions can be separated
3. division of labor
4. organelles transport is more rapid
Nucleus - (ANSWER)eukaryotic cell's information storage and retrieval centre
,What does the nucleus contain? - (ANSWER)chromosomes, chromatin, nucleolus,
nuclear envelope
Chromosomes - (ANSWER)DNA; carries genetic information
Chromatin - (ANSWER)complex of DNA and proteins
-has several levels of organization (nucleosomes)
Histones - (ANSWER)help DNA coil
Nucleolus - (ANSWER)site of manufacture of rRNA and assembly of ribosomal sub
units
Nuclear envelope - (ANSWER)two lipid bilayers supported by a lattice like sheet
called the nuclear lamina (double membrane)
nuclear pores - (ANSWER)holes in the nuclear envelope that allow materials to
pass in and out of the nucleus
-mRNA moves OUT; building blocks of DNA, rRNA and enzymes that work the
nucleus IN
endomembrane system - (ANSWER)regulates protein traffic and performs
metabolic functions
, -Rough ER, Smooth ER, Golgi body
Rough ER - (ANSWER)Protein synthesis and processing
Smooth ER - (ANSWER)lipid/steroid synthesis and detoxification of drugs, calcium
storage
Golgi apparatus - (ANSWER)receives, modifies, stores and ships proteins from ER
Ribosomes - (ANSWER)site of protein synthesis
Free ribosomes - (ANSWER)make proteins that function in the cell
ER-attached ribosomes - (ANSWER)make proteins for export in membrane bound
vesicles (Secretion)
What does the movement of proteins require? - (ANSWER)energy and needs to
be tightly regulated
Mitochondria - (ANSWER)sites of cellular respiration
-have a double membrane
-outer membrane is smooth while the inner membrane is folded into cristae
Answers | Graded A+ | Verified Answers | Just
Released
Cytoskeleton - (ANSWER)network of fibres that organize internal structure and
activities in the cell
What do the connections between cells function in? - (ANSWER)They coordinate
cell activities
What do both eukaryotic and prokaryotic cells have in common? -
(ANSWER)plasma membrane, cytoplasm, genetic material, ribosomes
Prokaryote description - (ANSWER)single, circular chromosome, plasmids, cell
wall
Examples of eukaryotic cells - (ANSWER)protists, fungi, plants, animals
List four reasons why eukaryotic cells have such complex compartmentalization -
(ANSWER)1. attachment of membrane bound proteins
2. incompatible reactions can be separated
3. division of labor
4. organelles transport is more rapid
Nucleus - (ANSWER)eukaryotic cell's information storage and retrieval centre
,What does the nucleus contain? - (ANSWER)chromosomes, chromatin, nucleolus,
nuclear envelope
Chromosomes - (ANSWER)DNA; carries genetic information
Chromatin - (ANSWER)complex of DNA and proteins
-has several levels of organization (nucleosomes)
Histones - (ANSWER)help DNA coil
Nucleolus - (ANSWER)site of manufacture of rRNA and assembly of ribosomal sub
units
Nuclear envelope - (ANSWER)two lipid bilayers supported by a lattice like sheet
called the nuclear lamina (double membrane)
nuclear pores - (ANSWER)holes in the nuclear envelope that allow materials to
pass in and out of the nucleus
-mRNA moves OUT; building blocks of DNA, rRNA and enzymes that work the
nucleus IN
endomembrane system - (ANSWER)regulates protein traffic and performs
metabolic functions
, -Rough ER, Smooth ER, Golgi body
Rough ER - (ANSWER)Protein synthesis and processing
Smooth ER - (ANSWER)lipid/steroid synthesis and detoxification of drugs, calcium
storage
Golgi apparatus - (ANSWER)receives, modifies, stores and ships proteins from ER
Ribosomes - (ANSWER)site of protein synthesis
Free ribosomes - (ANSWER)make proteins that function in the cell
ER-attached ribosomes - (ANSWER)make proteins for export in membrane bound
vesicles (Secretion)
What does the movement of proteins require? - (ANSWER)energy and needs to
be tightly regulated
Mitochondria - (ANSWER)sites of cellular respiration
-have a double membrane
-outer membrane is smooth while the inner membrane is folded into cristae
