Cell Membrane Q's

5/19/2018 Cell Membrane Q's

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Cell membrane and

Transport

Biology 12


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1. Carrier molecules thatbring materials into the cellsare A. lipids

B. proteins

C. glycogen

D. phospholipids


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2. The fuid-mosaic membrane modeldescribes the membrane

as having a

A. sheet o protein

B. phospholipidbilayer

C. sugar-phosphatebac!bone

D. complementarybase template


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". #olecules in the cell

membrane that unction asreceptors are

A. proteins

B. glycerol

C. cholesterol

D. phospholipids


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$. Cell membranes arecomposed mainly o

A. sugars andphosphates

B. phospholipidsand proteins

C. carbohydratesand cellulose

D. nucleotides andcarbohydrates


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%. &hich o these substances

cannot pass through cellmembranes' A. (tarch

B. )lycerol

C. Amino acids D. #onosaccharides


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*. &hich o the ollo+ing

conditions is re,uired ordiusion to occur' A. AT energy

B. A living cell

C. A concentrationdierence

D. A selectively-permeablemembrane


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/. The rate o diusion acrossthe cell membrane is aected by

the A. temperature

and pinocytosis

B. temperature

and the si0e o themolecule

C. membranestructure and

phagocytosis D. shape o

glycolipids andglycoproteins


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. rog eggs placed in anisotonic solution +ill

A. burst

B. shrin!

C. remain the same

D. increase in volume


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3. &hen put in a hypotonicenvironment4 an animal cell

+ill

A. s+ell

B. shrin!

C. secrete en0ymes

D. remain unchanged


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15. &hich o the ollo+ingconditions +ould cause red blood

cells to burst' A. p6 o /.% B. temperature o

"57C

C. being placed indistilled +ater

D. being placed inan 118 salt

solution


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11. The cytoplasmic concentration o solute ina cell is 5.5%8. This cell is placed in a solutionthat causes the cell to s+ell and burst. Thesolute concentration o this solution is

A. 5.55%8

B. 5.5%8

C. 5.%8

D. %.58


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12. 9n an e:periment4 rog;s eggs +ereplaced in a salt solution. Ater severalhours their mass increased signi


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1". A cell +ould tend to gain +ateri it +ere moved rom

A. an isotonic solutionto a hypotonic solution

B. an isotonic solutionto a hypertonic solution

C. a hypotonic solutionto an isotonic solution

D. a hypotonic solution

to a hypertonic solution


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1$. 9 the solute concentration osolution A is greater than solution B4then solution A is said to be

A. isotonic tosolution B

B. osmotic tosolution B

C. hypotonic tosolution B

D. hypertonic tosolution B


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1%. &hich o the ollo+ingmoves material against a

concentration gradient'

A. osmosis

B. diusion C. active transport

D. acilitatedtransport


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1*. &hich o the ollo+ing

processes moves moleculesusing cellular energy'

A. osmosis B. diusion

C. pinocytosis

D. acilitated transport


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1/. &hich o the ollo+ingprocesses +ould be directly aected

by a lac! o cellular AT'

A. osmosis

B. diusion

C. active transport

D. acilitated

transport


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1. inocytosis is accomplishedby the cell using the

A. nucleus

B. cell +all

C. cytoplasm

D. cell membrane


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13. The process ta!ing +hen acell enguls larger proteinmolecules and internali0es themin vesicles is

A. osmosis B. e:ocytosis

C. phagocytosis



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25. 6o+ many o the ollo+ing actors+ould aect the permeability o the cellmembrane' =(i0e o molecules =>ipidsolubility o molecules =resence otransport channels =resence o ATinside the cell.

A. one

B. t+o

C. three

D. our


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21. &hich o the ollo+ing aids themovement o glucose across a cell

membrane'

A. protein B. phosphate

C. glycolipid

D. cholesterol


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22. A shortage o available AT+ould hinder a cell;s ability toimport

A. +ater B. protein

C. o:ygen

D. carbon dio:ide


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2". &hich o the ollo+ing +ill beaected directly i the mitochondria

in a cell are not unctioningproperly'

A. absorption o alcohol by the cell

B. the movement o +ater into and outo the cell

C. the movement o o:ygen across thecell membrane

D. the movement o sugar rom a lo+ toa high concentration


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2$. A slice o potato placed in distilled+ater becomes


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2%. )lycogen is not normally oundin the blood because

A. ree glucosemolecules are stored asstarch

B. ree glucosemolecules are converted

to amino acids C. glycogen can be

structurallyincorporated directlyinto the cell +all

D. glycogen moleculesare unable to diusethrough the cellmembrane


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2*. The cell process +hich uses ATto bring substances into the cell is

A. osmosis

B. diusion

C. active transport



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Cell Membrane Q's