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Cha pt-er '3 5
Name
Cellular Transport and the I
Cell Cycle
In your textbook, read about osmosis: diffusion ofwater.
Date Class
Section 8.1 Cellular Transport
Complete the table by checking the correct column for each statement.
Statement
1. Causes a celi to swell 2. Doesn't change the shape ofa cell
-�- Causes osmosis �<.1-te:r t)c,J,."l'j
. .f,i")rvi - --o ,,"w,� .. 1 )
Isotonic
Solution
✓
lt>,J t 1
Hypotonic Hypertonic
Solution Solution
✓
✓ ✓
,..
l\ow) (_,-;�-
4. Causes a cell to shrink (^) ✓
fow
In your textbook, read about passive transport and active transport.
For each item in ColumnA, write the letter of the matching item in ColumnB.
d
f
ColumnA
5. Transport protein that provides a tubelike opening
in the plasma membrane through which particles
can diffuse c"'o1v,e,.i prcrt€'.I�
6. Is used during active transport but not
passive transport e0er5':
7. Process by which a cell takes in materia! by forming
ColumnB
0nergy
@acilitated diffusion
G)ndocytosis
a vacuole around it endcc..ytosìc;;
0 � passive transport
8. Particle movement from an area ofhigher concentration
to an area of
_
lower concentration
-pc>.'-S"Q.. --,aN,;.y,
or+
�
�ctive transport
{!jeh. .-.d of)
9. Process by which a cell� wastes from a vacuole ~
e.xocytoc,.\c.,
___,h '-"'-
-- 1 O. A form ofpassive transport that uses. t:fansport P,roteins
'¼o c.,\ ,·1-al:-oo èl', Hu<;.',c,n
©xocytosis
_...,e_J ,e
__ 11. Particle movement from an area oflower concentration g. carrier protein
to an area ofhigher concentration ae:thie +,o/"\s.port
__Q
.---- 12. Transport protein that changes shape when a particle
J
binds with it C.C'..ir ,'ier prc:.+ei"
�hannel protein
UNIT 3 CHAPTER^8 Cellular Transport and the Celi Cycle 85
:N"ame Date^ Class
Cellular Transport
and the Cell Cycle, continued
Section 8.2 Celi Growth and Reproduction
In _your textbook, read about cell size limitations.
Determine if the statement is true. If it is not, rewrite the italicized part to make it true.
1. Mostliving cells are between 2 and 200 μm in diarneter. :-:0.112, ls·, z.e , ,; kn,ttd 1.,
1
$\ir.fuce c1reci)
2. Diffusion ofrnaterials over long distance is 'M: -�S�\C�\J=.J
________________
3. Ifa celi doesn't have enough DNA to rnake all the proteins it needs, the celi cannot live.
e...
- As a cell's size increases, its volume increases rnuch slà(er than its surface area.
fo ç.· ,
�Ifa cell's diameter doubled, the cell would require
,ìXi times more nutrients and would have )!,;i,_
(Y tirnes rnore wastes to excrete.
__e�
ì-=-< 9
....h�t➔
;
�e�ì 9
.....h�+�-------------------
In _your textbook, read about cell reproduction.
Use each of the terms below just once to complete the passage.
nu�s gene�rial chro�omes
id�al chro� v�
The process by which two cells are produced frorn one cell is called (6) C.e\ dìvi�\ùf\
The two cells are (7) (^) ---�=c=e�n�--�·,c.�a�____ to the origina! cell. Early biologists observed that just
before celi division, severa! short, stringy structures appeared in the (8) --�O�l-./C�.\�e�u�s�-----
These structures seemed to (9) ___\J..,..,..O�O�\�S�h�------ soon after cell division. These structures,
which contain DNA and becarne darkly colored when stained, are now calied (10) (^) ç,hroov>f,Q(Te,!,;
Scientists eventualiy leamed that chromosornes carry (11) <
e.oe·t',ç.,., ma.--Q.fìuJ lD!':'A} which
is copied and pa �
sed on frorn generation to generation. Chrornosornes normaliy exist as
(12) -�Ch�f'._Q�n,a·
t'_1n_____ , long strands ofDNA wrapped a,round proteins. However, before
a cell divides, the chrornatin becornes tightly (13) ____,.p=a_c����----
86 CHAPTER 8 Cellular Transport and the Cell Cycle UNIT 3
Name Date Class
Cellular Transport
and the Cell Cycle, continued
Section 8.3 Contro/ of the Celi Cycle
In your textbook, read about normai contro! of the celi cycle and cancer.
Answer the following questions.
1. In what ways do enzymes control the cell cycle?
Errz'::1mes- a,e.. oeeckd -+o be. g
';a e,yy} dc'ivP H-,'1 LQ\ c'.f"k•.^ ·11--.e �
g\sc
d,cec.- (^) :the. :pbases
of tl-,e ce\ e �
d" {S.,bec(pobts)
2. What directs the production of these enzymes?
ge
aes. 7
ce rn�i\ s.egroea+s lReroero.ier:� eaz �
mes qre proie>)·:-)s & DIVA
- What can cause the cell cycle to become uncontrolled?
lacK o-f €Jì:t. ':r
ies. r,eeòe.d ·-o C.Ori'Tfç\ tbe çe.i I Ci f
Ì<: (c,hec.Kpo:,ts')
J
Q\ie�r•rcdudìOI"'\
1Jf tbo$k? eozyme�; oc prr<luc+ìno of otbec enz 'j
rops ai ::he u;
r- c,; �
kne a.\
cao cm1s.o -lbe cP\ < 'f le 'te, ,e,come u coY)kol\ed. l f\qsìcall� f4;\eò c.�qrKpcJr;'ls � (^) ;;
� lJDr-0aho11,.:d celi d,v)�ìca = caocc;;r)
4. What can restilt when the cell cycle becomes uncontrolled?
\lacof\ì,nìled, U.1',eguldled co\ d,o1ìS.ln0:: co,ve<
- What is the relationship between environmental factors and cancer?
C.erla\f'\ eovì�aoooea}al :fod:ors:-, �<;-ve- cg .scno(ì'"' 5
; po\utìro, & U V ro vs.,
caa dorooy 'ihe (^) ge.,,es -'no- rookol tbe producl::',oa ()t Poz r
es: \Ov0\wd
\n +be.. ce\ c..,vde ➔ uocont-r:n\i.Ò e.e\ dìvì<,.\c;;r-. ➔ cor:1cer
J
6. What is a tumor? Describe the final stages of cancer.
A Mas.i o'f b�c;.,.H:: La buoc·,,b ,..,ç ce\� cl.iro(>PÒ +·09e:ìb,u thot d;v,òed
7. Cancer is the second leading cause of death in the United States.. What four types of cancer are the
most prevalent?
Lvng, cr,\o", breas+, & p,cfutt:i·::e.
- CHAPTER 8 Cellular Transport and the Cell Cycle UNIT 3
