Download Chapter 3-practice test

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CHAPTER3 (3.1,3.2,3.4)
Multiple Choice
Ident the choice that best completesthe statementor answers the question.
1. The invention of the microscope made it possible
for people to discover
a. plants.
b. skin.
c. animals.
d. cells.
2. Which of the following statementsis part of the
cell theory?
a. Only plants are composedof cells.
b. All cells are producedfrom other cells.
c. Cells can be producedfrom nonliving matter.
d. Cells are one of severalbasic units of structure
and function in living things.
3. Which of the following statementsis l.{OT part of
the cell theory?
a. Cells are the basic unit of structure and
function in living things.
b. All cells are producedfrom other cells.
c. Only animalsare composedof cells.
d. All living things are composedof cells.
4. Cells in multicellular organisms
a. all look the same.
b. all havethe samestructure.
c. are often quite different from each other.
d. are the samesize in every part of the organism.
5. What is the function of a cell wall?
a. to protect and support the cell
b. to perform different functions in each cell
c. to prevent water from passingthrough it
d. to prevent oxygen from entering the cell
6. What is the function of a cell membrane?
a. ro suppon the cell
b. to perform different functions in each cell
c. to control what enters and leavesthe cell
d. to form a hard outer covering for the cell
7 . Which organelleis the control centerof a cell?
a. mitochondrion
b. ribosome
c. nucleus
d. chloroplast
8. Which of the following best describesthe function
of mitochondria?
a. They convert energy from food molecules into
energythe cell can use.
b. They storeenergyfrom food molecules.
c. They storeenergyfrom sunlight.
d. They produce nucleic acids that releaseenergy.
9. Which organellesstore food and other materials
neededby the cell?
a. mitochondria
b. chloroplasts
c. ribosomes
d. vacuoles
10. Which organellesreleasechemicalsthat break
down large food particles into smaller ones?
a. endoplasmicreticulum
b. Golgi bodies
c. lysosomes
d. vacuoles
11. Which structuresfound in plant cells are also found
in animal cells?
a. endoplasmicreticulum and cell wall
b. Golgi bodiesand chloroplasts
c. chloroplastsand lysosomes
d. ribosomesand cell membrane
12. Which term refers to the movement of molecules
from an area ofhigher concentrationto an area of
lower concentration?
a. collision
b. diffusion
c. active transport
d. concentration
13. Which term refers to the diffusion of water
moleculesthrough a selectively permeable
membrane?
a' osmosis
b. engulfing
c. active transport
d. passivetransport
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14. Which term refers to the movement of materials
through a cell membranewithout using the cell's
energy?
a. concentration
b. collision
c. active transport
d. passivetransport
18. Depending on the cell, one thing a cell wall and
cell membranemay have in common is
a. either may separatea cell from its environment.
b. both are presentin all cells.
c. neither can prevent harmful materials from
entering the cell.
d. one cannot exist without the other.
15. Though cells in living things are put togetherin
many ways to form different structures,all cells
a. are identical in size.
b. carry out the exact samefunction.
c. carry out similar life processes.
d. work with only one other type of cell.
19. Osmosisand diffusion are relatedin that
a. both are methodsto stop movement of
moleculesacrossa cell membrane.
b. osmosisis the movement of water acrossthe
cell membraneby diffusion.
c. both involve the movement of large molecules
acrossthe cell membrane.
d. both processesonly work in red blood cells.
16. A cell, tissue,and organ are all relatedto an organ
systemin that each
a. is part of a unicellular organism.
b. is made of many organ systems.
c. has the samefunction.
d. is a part of an organ system.
l7. In multicellular organisms,cells are organizedinto
a. tissues,which make up organs,which make up
organ systems.
b. organs,which make up tissues,which make up
organ systems.
c. organ systems,which make up tissues.
d. organs,which make up organ systems.
20. Movement acrossa cell membranethat requires
energy is called
a. active transport.
b. passivetransport.
c. engulfing'
d' absorption'
2L
If a cell's nucleuslackedchromatin,the nucleus
would
a. be unable to receive materials through the
nuclearenvelope.
b. lose all its genetic information and its ability to
direct the cell's activities.
c. reproduceat more than twice the normal rate.
d. be unable to convert energy in food molecules.
True/tr'alse
Indicate whether the statementis true or false.
A: True B: False
22. You can't seethe cells in your body becausemost
of them are very_small.
25. Organellesthat use energyfrom sunlightto
produce food are called mitochondria.
23. A microscope is an instrument that makes distant
objectslook larger.
26. In passivetransport, materials move from an atea
ofhigher concentrationto an areaoflower
concentrationthrough a cell membrane'
24. The cell theory statesthat cells are produced from
nonliving cells.
ID: A
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Completion
Complete each statement.
27. A microscopeallowed Hooke to see"tiny
rectangularrooms," which he called
35. Thediffusionof
moleculesthrougha selectivelypermeable
membrane
is calledosmosis.
28,' Cellsarethe basicunits of structureand
in living things.
36. Unlike passivetransport,activetransportrequires
the cell to useits own
29. Accordingto the cell theory,all organismsare
37. Your heartis madeup of manygroupsof tissues
madeof
30. Thenucleusof a cell hasthin strandsof
that contain genetic
material.
that are working together, therefore, it is
considereda(n)
38. Energy from sunlight captured
by
31. Smallgrainlikebodiescalled
produce proteins inside
cells.
knownas
32. Organelles
containchemicalsthat breakdown food particles
andold cell parts.
33. A structurefoundin plant cellsbut not in animal
cellsis thecell
34. Oxygen moleculesmove acrosscell membranes
through a processcalled
in plantcells
enableplants to convert energy into food.
39. A cell with a low concentration of oxygen will
likely gain oxygen molecules from an areawith a
higher oxygen concentrationthrough the processof
40. The stomachis an example of a(n)
that is composedof muscle
tissue.
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Short Answer
Use the diagram to answer each question.
CellStructures
41. What aretwo structuresthat arenot foundin the
cell shownherebut that arefoundin plantcells.
a) Cell membrane,Chloroplasts
b) Cell Wall andNucleus
c) Cell Wall andChloroplasts
d) Cell Membraneandmitochondria
42. Identiff StructureA
a. ribosomes
b. golgibody
c. vacuole
d. endoplasmicreticulum
43. Identiff the structureslabeledB
a. mitochondria
b. golgibody
c. chloroplasts
d. nucleus
44. Identifustructure
C
a. golgibody
reticulum
b. endoplasmic
c. ribosomes
d. vacuole
45. Identiff the largeroundstructurelabeledD
a. mitochondria
b. cell wall
c. lysosome
d. nucleus
46' Is the cell showna plant cell?
a. yes
b. no
c. can'ttell