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University of Alberta Library
ASSIGNMENT BOOKLET 3B
0 1620 3682106 2
SCN1270 Science 10
Module 3: Section 2 A ssignment
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Section 2
41
Assignment
Science 10
Module 3: Cycling Matter in Living Systems
Assignment Booklet 3B
Section 2 A ssignment
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Science 10: Module 3 1 Assignment Booklet 3B
ASSIGNMENT BOOKLET 3B
SCIENCE 10: MODULE 3
SECTION 2 A SSIGNMENT
This Assignment Booklet is worth 41 marks out of the total 1 30 marks for the assignments
in Module 3. The value of each assignment and each question is stated in the left margin.
Read all parts of your assignment carefully and record your answers in the appropriate
places. If y ou have difficulty with an assignment, go back to your Student Module
Booklet and review the appropriate lesson. Be sure to proofread your answers carefully
before submitting your Assignment Booklet.
Section 2 A ssignment: Functions of Cell Structures and
Organelles
For questions 1 to 8, read each question carefully. Decide which of the choices BEST
completes the statement or answers the question. Place your answer in the blank space given.
1 . A s ystem that is able to exchange matter and energy with its surroundings is
called a(n)
A. basic system
B. open system
C. free system
D. empty system
2. Which statement is true for both plant and animal cells?
A. They have a cell wall.
B. They have chloroplasts.
C. They have a G olgi apparatus.
D. They have centrioles.
3. The solvent that provides the environment for all biological reactions is
A. water
B. cytoplasm
C. nucleic acid
D. oxygen
Science 10: Module 3 2 Assignment Booklet 3B
4. The cell membrane consists of
A. two layers of lipids, each with a p hosphate group attached
B. sugar molecules attached to a p rotein layer
C. two layers of carbohydrates attached to a l ipid layer
D. a single layer of lipids with a p hosphate group attached on each side
5. Another name for the cell membrane is
A. phospholipid bilayer membrane
B. fluid-mosaic membrane
C. lipid membrane
D. plasma membrane
6. Membrane-bound sacs in which digestion occurs are called
A. lysosomes
B. ribosomes
C. mitochondria
D. Golgi apparatus
7. Rod-like structures where reactions occur to convert chemical energy in
sugars into energy the cell can use are called
A. lysosomes
B. ribosomes
C. mitochondria
D. Golgi apparatus
8. Which part of the cell receives substances from the endoplasmic reticulum
and prepares them for transport out of the cell?
A. lysosomes
B. ribosomes
C. mitochondria
D. Golgi apparatus
Science 10: Module 3 3 Assignment Booklet 3B
9. Match each description or function with the correct structure or term from the
following list:
ii. cell membrane iii.
i. cytoplasm vi. endoplasmic reticulum
iv. chloroplast V. central vacuole
lysosome
vii. nucleus viii. lipid ix.
equilibrium
a. a series of small interconnected tubes that branch from the nuclear
envelope
b.
an organelle that contains the genetic material of the cell and directs all
cell activities
c. a structure containing chlorophyll found in p lants and some protists
d.
a l arge, membrane-bound structure in a p lant cell that causes the cell to
become turgid when filled with water
e.
a g el-like substance inside the cell membrane that contains the nutrients
required by cells
f.
a p rotective barrier for the cell
Return to page 57 of the Student Module Booklet and begin Section 2: Lesson 2.
For questions 1 0 t o 1 7, read each question carefully. Decide which of the choices BEST
completes the statement or answers the question. Place your answer in the blank space given.
1 0. The movement of water across a cell membrane that does not require
energy is called
A. osmosis
B. hypertonic diffusion
C. facilitated diffusion
D. active transport
1 1 . Which factor determines whether movement across a c ell membrane is
active transport or passive transport?
A. energy use
B. direction of movement
C. the concentration of solutes
D. the type of molecule or particle involved
Science 10: Module 3 4
Assignment Booklet 3B
12. A w hite blood cell engulfing a b acterium is an example of
A. osmosis
B. exocytosis
C. endocytosis
D. facilitated diffusion
13. A m embrane that allows only certain substances to pass through is a
A. porous membrane
B. transparent membrane
C. impermeable membrane
D. semi-permeable membrane
14. Which method allows the cell to move particles against the concentration
gradient?
A. osmosis
B. hypotonic diffusion
C. facilitated diffusion
D. active transport
15. Substances soluble in lipids can pass through the cell membrane by
A. diffusion
B. facilitated diffusion
C. active transport
D. attaching to carrier proteins
16. A h en’s egg with the shell dissolved is p laced in a 10% salt solution.
Relative to the interior of the egg, the salt solution is
A. hypotonic
B. isotonic
C. hypertonic
D. semi-permeable
1 7. A p rocess in which a vesicle fuses with the cell membrane then ruptures to
expel wastes to the outside of the cell is known as
A. osmosis
B. exocytosis
C. endocytosis
D. plasmolysis
Science 10: Module 3 5 Assignment Booklet 3B
18. Determine whether each statement is true (T) or false (F). Place your answer in the
blank space given.
©
a. When a cell is p ut into an isotonic solution, individual water molecules
cannot move back and forth across the cell membrane.
©
b. When a cell is p ut into a h ypertonic solution, there is a net movement of
water molecules across the cell membrane into the cell.
©
c. When a cell is p ut into a h ypotonic solution, there is a n et movement of
water molecules across the cell membrane out of the cell.
©
d. The movement of any solvent across a semi-permeable membrane is
called osmosis.
©
e. Carrier proteins have the ability to change shape and physically move
molecules across the cell membrane.
©
f. In facilitated diffusion, the concentration of the molecules to be moved
across the cell membrane is higher inside the cell.
Return to page 72 of the Student Module Booklet and begin Section 2: Lesson 3.
For questions 1 9 t o 27, read each question carefully. Decide which of the choices BEST
completes the statement or answers the question. Place your answer in the blank space given.
19. Proteins that stick out of the cell membrane and allow cells to recognize
other cells or recognize foreign bodies, such as bacteria, are known as
A. synthetic proteins
B. recognition proteins
C. receptor proteins
D. model proteins
20. Future treatment for diseases, such as HIV, involves
A. the removal of receptor proteins from the cell membrane
B. blocking recognition proteins on the HIV virus
C. blocking receptor proteins in the cell membrane
D. adding recognition proteins to the cell membrane
Science 10: Module 3 6 Assignment Booklet 3B
2 1 . Gene therapy for cancer treatment involves
A. using liposomes to deliver medication to cancer cells
B. blocking receptor proteins in the cell membranes of cancer cells
C. using liposomes to introduce DNA to cancer cells so they produce
toxins
D. using liposomes to introduce DNA to healthy cells so they do not
become cancerous
22. Read the following list of statements regarding insulin action in the body.
I
I IV Insulin travels through blood.
.
I Which is the correct order of the statements?
. A. I, I I, III, IV
B. IV, II, I, I II
III. 2I3Bn.Iis n uns lduAWwCCBDDiilana......in tt ng iee s rorIdIf r b lIr aesisi l, ecvtfn m, clieidfm Ioeolrms uVIosain su,s,vsti el c iteaIe a s oeoIdVt st , nn ,e roe t bdIe ss ryI cI mIf Iae pd ro eptrixotsiofoomiocfcr sney u p tssa rosinois eotni snae s ri. eni ans . t ohfe cleolwle. r water concentration to an area of higher
24. Which statement regarding hemodialysis is true?
A. The dialysate fluid flows into the abdominal cavity through a catheter.
B. The blood is circulated out of the body for cleansing and then returned.
C. The patient is able to move around during the procedure.
D. Wastes move from a region of lower concentration to a region of higher
concentration.
