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Cellular Structure and Function 71
Name Date
Main Idea Details
Section 7.3 Structures and Organelles (continued)
Cytoplasm and Cytoskeleton
on page I found this information.
SE, pp. 191–192RE, p. 75
Cell Structures
on page I found this information.
SE, pp. 193–199RE, pp. 75–
Compareboxes. the cytoplasm and cytoskeleton by defining each in the
semifluid material inside the Cytoplasm Cytoskeleton
organelles or plasma membrane in which cell processes take
place directly
supporting network of long, thin protein fibers forming a
framework for the cell and providing an anchor for
organelles
Identifydescribed. the part of the cell that corresponds to each function
nucleus directs cell processes; contains the cell’s DNA; stores information for cell growth,
nuclear envelope function, and reproduction
double membrane that surrounds the nucleus
ribosome helps manufacture proteins
nucleolus produces ribosomes inside the nucleus
endoplasmic reticulumsite of ribosome attachment; can be smooth or rough
Golgi apparatus modifies, sorts, and packages proteins for transport outside the cell
vacuole membrane-bound storage area within the cell
lysosome vesicle that contains substances that digest excess or worn-out organelles
centriole structure near the nucleus that functions during cell division
mitochondrion converts fuel particles (sugars) into useable energy
chloroplast captures light energy and converts it to chemical energy through photosynthesis
cell wall gives support to plant cells
cilia and flagella projections that allow the cell to move or to move substances along the surface of
the cell
CellularStructureandFu
nction^69
Name
Date
oIfonpuangdethisinformation.
SE,REp,pp.p^18.^87 – 31 –^9704
Model theplasmamemb
rane.Labeleachpart,and
describethe
functionof thatpartin
detail.
Diaproteins,gramsandshould clearcholesterol.ly show and explain phospholipids,
phospholipids: polar phosphate hea
dsallow membranetointeract
with surface water; nonpolar tail
s are on insideof membr
ane and
makeit difficult for water-soluble
particles to move through the
membrane
transport proteins:regulate what is
allowed to enterand exit the
cell through the membr
ane
cholesterol: keeps phospho
lipidsfluid, preventsthem
from
sticking together
receptors: transmit signals
totheinside ofcells
Discuss howthetermsfl
uid andmosaic describet
heplasma
membrane.
Fluid: It is fluid because the phospholipids, prot
eins, and
cholesterol float in the
membrane.
Mosaic:It is a mosaic
because it has many parts.
The proteins
create patterns on the m
embrane’s surface.
Section 7.2 The Plasma Membrane
(continued)
Main^ Idea
Details
Analyze therole of thepla
smamembranein ma
intaining
homeostasis in thecell.
Accept all reasonable responses. As a select
ively permeable barrier between the
inside of the
cell and the outside environm
ent,the plasmamembrane controls the
amount ofsubstances
entering and leaving the cell and the tim
ing of substance flow.
(^) SUMMARIZE
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