ap biology cell test

7/23/2019 AP BIOLOGY CELL TEST

http://slidepdf.com/reader/full/ap-biology-cell-test 1/11

SATII

Biology

Q2

Test#1

Practice

Dr. Sagha

3-

l .

The most accepted

model

of enzyme

rrnction s

the

(A)

lock and

key model

(B)

conformational

ypothesis

(C)

substrate

model

(D)

nduced

it hypothesis

(E)

noneofthe above

An enzyme

an overcome

he

presence

fa

competitive

nhibitor by

(A)

decreasinghe substrate

oncentration

(B)

increasing he subshate

oncentration

1C)

ncreasinghe emperature

(D)

decreasing

he temperature

(E)

altering he

pH

How do enzymes

ffect he

reaction ate of

chemical eactions?

(A)

Increase

ate of reaction

(B)

Decrease

ate ofreaction

(C)

Have

no effect

(D)

Reverse

he reaction

(E)

Caneither speed

t up or slow

it down

depending

n the reaction

Cyanide s

poisonous

o humansbecause

t

(A)prevents

complete

gas

exchange

n

alveoli

(B)disrupts strocyteunction

(C)

binds

neversibly to

allostericsites

(D)

altersblood

cell conformation

(E)

noneof the above

Which of the following

is a

protease?

(A)Salivaryamylase (D)Orytocin

(B)

Pepsin

(E)

Sucrase

(C)

Maltase

6. Whenan entire enzymepopulation s saturated,

how

would the cell increase

roductivity?

(A)

Absorb more heat o

denaturehe active site.

@)

Add more enzyme.

(C)

Increasehe substrate

oncentration.

(D)

Decrease

he subshate oncenftation.

(E)

Add more active sites

o the enzyme.

A

5.

Base

your

answers

o

questions

and 8 on

the

information

and diagram

below.

A biologist

prepares n analysis

of the activity of the

enzymemaltase,

which

promotes

he

hydrolysisof

disaccharides

o

monosaccharides.

hree l asks

containing

10 milliliters

of 4

percentmaltose

n water

arepreparedwith the additionof the substances

descdbed elow

at time

zero.

Beaker

A: Addition

of 0.6 ml

1%MaltaseSolution

BeakerB: Addition

of 0.6

ml BoiledMaltase

Solution

BeakerC:

Additionof 0.6

ml DistilledWater

7. How can he

biologist

find

proof

for enzyme

denaturation

y observing

starchdigestion

n the

flasks?

(A)

Compme

lasks

A

and

B a few minutesafter

time zero.

(B)

Compare lasks

B and C a

few minutesa.fter

time zero.

(C)

Compare lasks

A and C a few minutes

after

time

zero.

(D)

Compare

lask A at time

zero and again

ew

minutes ater.

(E)

Compare

lask C at time

zero and again

ew

minutes

ater.

After a

few minutes.

monosaccharideshould

be

present

n

8.

(A)

flask

A only

(B)

flask

B only

(C)

laskC

only

(D)

flasks A and

B

(E)

flasks A, B and

C



9. Which of

the

following statements

egarding

enzymess

CORR-ECT?

(A)

They change

he free energy

ofthe reaction

(B)

They usually

remainunchanged

n the

reaction

(C)

They ncreasehe

activation

energy

(D)

They are

nonspecific

n their ability

to act on

substratemolecules

(E)

They are not affected

by inhibitors

10. Base

your

answer o the

following

question

on

the

graph

below.

o24

pH

Which statement

bout he

graph

of enzyme

activity

is

correct?

(A)

All four enzymes

an work

togetherat a

certain

pH.

(B)

EnzymeD works

bestat the most

acidic

pH.

(C)

En-rymeD works

bestat the most

alkaline

pH.

(D)

EnzymeA works best

at the

most basic

pH.

(E)Eachenzymeworks n bothacidic and basic

conditions.

Enzfmes alter

reaction ate by

affecting

(A)

activation

energy

(B)

allosteric

compounds

(C)

cofactor

distribution

(D)

covalentattraction

@)

substrate

omposition

In comparisono plantcell walls, bacterialcell

walls contain

(A)peptidoglycan

(D)cellulose

(B)starch (E)

chitin

(C) phospholipids

Relativef

Rateol

I

Enzyme

Action

I

\

\

A

/ \

I

t

,

11.

12.

Q2

Test #1

Practice

Base

your

answers

o

questions

3 and 14

on the

following

diagram.

fED^

r-----rA

.17

ilo

Mr*M *M,

13. The operation

of

molecule Bcan

be affectedby

14. The diagram

depicts he

ability of

moleculeB to

be

(A)pH

(B)

emperature

(C)

urea

(A)

conformed

(B)

destroyed

(C) nduced

(D)vitamins

(E)

all ofthe

above

(D)

remade

(E)

reused

15.Base

your

answer o

the following

question

on

the

graph

below.

Select

he correctstatement

bout

he

graph

of

enzymeactivities.

(A)

EnzrTme

works bestat

a basic

pH.

(B)

Enzyme

B works best

at an acidic

pH.

(C)

EnzymeB

works bestat a basic

pH.

(D)

Eachenzyme

works over

pH

values0 to

14.

(E)

Both enzSrmes

ork bestat the

same

pH.

z

IIJ Y

FE

ul

uJ

i ;

<N

JZ

EH

216 8r0

12

pH



Molecules

The catabolicactivity

ofthe enzymedepicted

on molecule

D illushates

Frl

D

Enzyme

D

(A)

catabolic heory

(B)

conformational

hange

(E)

allostery

B

(C)

induced it

hypothesis

(D)

enzyme pecificity

17. Prokaryotic ells

ack

(A)DNA

(D)ribosomes

(B)

mitochondria

(E)

cytoplasm

(C)

cell membrane

18. Base

our

answero the ollowing

question

n

the

picture

below.

lndicate he structure(s)

hought o be

descendant f endosymbiotic

acterialcells.

(A)

A only

(B)

C only

(C)A andC

A

primary

constituent

ofbacterial cell

walls is

(A)peptidoglycan

(D)

phospholipids

(B)

cellulose

(C)

glucose

(D)A

andB

(E)

B and C

lo

(E) polysaccharides

21.

Cyanobacteria

may containall

ofthese EXCEPT

(A)

cell membrane

(D)

c1'tochromes

(B)

chromatin

(E)

ribosomes

(C)

mitochondria

Mitochondria

are hought o be descendants

f

endosymbiotic acterial

cells. Which of

the

following statements est

supports his

statement?

(A)

Mitochondriaand

bacteria

possess

iflerent

ribosomes nd

DNA.

(B)

Mitochondriaaad

bacteria

possess

imilar

ribosomes nd DNA.

(C)Bothmitochondriaandbacteriahavecristae.

(D)Neither

mitochondria

nor bacteria

possess

chloroplasts.

@)

Glycolysis

occurs

n

both

mitochondriaand

bacteria.

Prokaryotes nd eukaryotes

end o have

which

of the following

featuresn common?

(A)Ribosomes

(D)

Golgi apparatus

(B)

Nuclearmembrane

(E)

Lysosomes

(C)Mitochondria

23. A cell

lacking ts microtubuleshas

problems

(A)

synthesizing

DNA

(B)

synthesizingRNA

(C)

storingmolecules

(D)

hansporting

iquid

(E)

maintaining

ts shape



zo-

27.

24.

Prokaryotes

may contain

eachof

the following

structures

EXCEPT

(A)lysosomes

(B)

cell wall

(C)

cell membrane

(D)

flagella

(E) photosynthetic pparatus

25.

A student

ooking tirough

a compound

ight

microscope

orrectly

decides

hat she

s

observinga

eukaryotic

cell because

(A)

mitochondria

me visible

(B)

vacuolesare

present

(C)

chlorophyll

s

present

(D)

a

cell wall is

present

(E)

t has lagella

The

mitochondriaof eukaryotes

volved

rom

what lpe of organism?

(A)

Anaerobicbacteria

(B)

Aerobic

bacteria

(C)

Euglena

(D)Ameoba

@)

Any kind of

eukaryote


containoxidative

enzymes nd

are mporcant

n intracellular

digestion?

(A)Peroxisomes

(B)

Plastids

(C)

Ribosomes

(D)

Golgi apparatus

(E)

Endoplasmic

eticulum

Cells of both angiosperms

nd mice contain

whichofthe

followingorganelles?

(A)

Cell

membranes nd chromosomes

(B)

Cell walls

andnuclei

(C)Lysosomesnd ibosomes

(D)

Centriolesand

cell membranes

(E)

Chloroplasts

ndvacuoles

A cell at equilibrium

with its environment

s

(A)hypertonic

(B)

hlpotonic

(C)

sobaric

(D)

sochoric

(E)

isotonic

28.

29.

Q2

Test

#1 Practice

Base

our

answers

o

questions

0

and

31

on the

diasam

below.

30. Which

of the following

must contain

DNA?

(A)A

only

(B)

C only

(C)AandConly

(D)A

and

D only

(E)

A, C

and D only

Jt .

A cell responsible

or

producing nsulin

most

likely

hashigh numbers

of amounts

of

(A)A

(B)B

(C)C

(D)D

@)

noneof the

above

Proteinsmade

by free ribosomes

will most

likely firnction

n which of the

following

locations?

(A)

Endoplasmic

eticulum

(B)

Plasmamembrane

(C)

Lysosomes

(D)

Cytosol

(E)

Nucleus

Vacuolesbudding

rom the Golgi

apparatus

may

fuse

with the cell

membrane.This

illustrates he

ideaof

(A) phagocytosis

(B)

receptor-mediated

ndocltosis

(C)

RNA synthesis

(D)

secretion

of intracellular

enzymes

(E)

the endomembrane

ystem

33.



34.

Base

your

answer o

the following

question

on

the

ollowingchoices.

Selecthe

choice hat

best its

the description

given. Eachchoice

may

be usedonce,

more han once,

or not

at all

within this

group.

(

A

)

Cilia

and

Flagella

(

B

)

Dynein

( C ) lntermediateFilaments

(

D

)

Microfilaments

(

E

)

Tropomyosin

Undergo otating

or undulating

motion

(A)A

(B)B

(C)C

(D)D

(E)

E

Base

your

answers

o

questions

5

and

36

on the

diasambelow.

What s arrow C

pointing

to?

(A)

vacuole

(B)

Golgi apparatus

(C)

endoplasmic

eticulum

(D)

nucleolus

(E)

mitochondria

What s arrow A

pointing

to?

(A)mitochondria

(B)

vacuole

(C)

ibosomes

(D) golgi

apparatus

(E)

endoplasmic

eticulum

35.

37. Pseudocoelomate

ells and

Gymnosperm

ells

both

possess

achof

the following

features

EXCEPT

(A)

centrioles

(B)

mitochondria

(C)

vacuoles

(D) plasmamembrane

(E)

endoplasmic

eticulum

Centrioles

are

(A)

contained

within

microtubule

organizing

centels

@)

structures

hat hold chromatids

ogether

(C)

a

period

n which

DNA is replicated

(D)

DNA-protein

complexes

making

up

eukaryoticchromosomes

(E)

a

period

of

renewed

rotein

synthesis

Baseyouransweron the diagrambelow.

Structure

D is

(A)the golgi

apparatus

(B)

the mitochondria

(C)

the centriole

(D)

a chloroplast

(E)

the endoplasmic

eticulum

40. Which of the following elementss found n the

highestabundance

n

protoplasm?

38.

39.

A

A

B

(A)Nitrogen

(B)Sultur

(C)Calcium

(D)hon

(E)

Phosphorus

CELL

I

CELL N



the

diagram

shown

below.

Chromatin

hickens

within

this

srrucnre.

(A)A

(B)B

(D)D

(E)

E

(D)

I

and

II

only

(E)

I, II

and

II

1a

(C)C

Alcohol s detoxifiedn

(A)

ysosomes

(B)

peroxisomes

(C)

ough

endoplasmic

eticulum

(D)

smooth

endoplasmic

eticulum

(E)

none

of the

above

Which

of

the ollowing

can

be

present

n

both

animal

and

plant

cells?

I.

centrioles

II.

chloroplasts

III. mitochondria

(A)

I

only

(B)

II

only

(C)

II

only

+J .

44. En4tnes

may

be

found

n

all

of the

followins

EXCEPT

(A)

inner

mitochondrial

membrane

(B)

nuclear

nvelope

(C)

cell

wall

(D)cell

membrane

(E)

peroxisomes

Programmed

ell

death

s

known

as

(A)

anabolism

(B)

apoptosis

(C)

catalysis

(D)

decomposition

(E)

denaturation

45.

cg_

4l

'

Base

your

answer

o

the

following question

on

|

46.

Chloroplasts

re

mostly

ocated

n what part

of

theplant

cell?

(A)

Mitochondria

(D)

Upper

epidermis

(B)

Chlorophyll

(E)

Grana

(C)

Mesophyll

issue

47.

Which

of the

following

is

NOT

one

of the

functions

of thesmoothendoplasmiceticulum?

(A)

Synthesis

f secretory roteins.

(B)

Synthesis

f lipids.

(C)

Detoxification

of

drugs.

(D)

Metabolism

f carbohydrates.

(E)

Release

fcalcium

durinq

muscle

contraction.

48.

What

s

the

unction

of

centrioles?

(A)

They

cause

ytokinesis

by the

concentric

shortening

f microtubules.

(B)

Theyproduce

microtubules

or

the

chromosomes

o migrate

along

as hey

move

to

opposite oles

of

thecell.

(C)

They

are equired

or

DNA

replication

(D)

They

enable

bacteria

o

move

(E)

None

of

the

above

49.

All

of the

following

statements

bout

organelles

are

rue

EXCEPT

(A)

vacuoles

re

membrane-enclosed,

luid_

filled spaces

(B)

ribosomes

re

he sites

fprotein

synthesis

(C)

golgi

apparatus

ontainspowerful

oxidative

en4lmes

(D)

the

nucleus

provides

physical

separation

between

ranscription

and

ranslation

(E)

centrioles

unction

n

cell

division

50.

Which

of the

ollowing

organelles

s involved

n

storage,

modification,

andpackaging

of

secretory roducts

roduced ythe ibosomes?

(A)

The ysosome

(B)

The

mitochondrion

(C)

The

endoplasmic

eticulum

(D)

The

Golgi

apparatus

(E)

The

nucleolus



51.

In

plants,

ow s the

iving content

onnected

o

adjacent

ells?

(A)

Pores

(B)

Tight

unctions

(C)

Plasmodesmata

52. In

human ells. he

cell wall

is

(A)composed f polysaccharides nd

pepidoglycans

(B)

acting

as a barrier

hat selectively

permits

materials

nto and out

ofthe cell

(C)

responsibleor

limiting the

absorption

of

water

(D)

nvolved

n

controlling

cellular mitosis

(E)

not

present

53.

Whichof the

ollowing

cytoskeletallements

forms he centrioles

within a cell?

(A)

Collagen

(B)

Microtubules

(C)

Microfilaments

@)

Intermediate

ilaments

(E)

Pseudopodia

54.


connectshe

other

cltoskeletal substances

nd

he organelles

within a cell?

(A)

Microtrabeculae

(B)Microtubules

(C)

Microfilaments

(D)Endoplasmic

eticulum

(E)

Golgi Apparatus

Cytolysis

n

protozoans

will most

ikely occur

because

f malfrrnctioning

(A)

contractile

vacuoles

(B)

endoplasmic

eticulum

(C)peroxisomes

(D) eukoplasts

(E)

tonoplasts

Which

of the following structures

oes

NOT

have

a membranen an animal

cell?

(A)

Microtubules

(D)

Ribosome

(B)

Nucleus

@)

Mitochondria

(C)

Vacuole

(D)

Gap

unctions

(E)

Desmosomes

55.

56.

Q2

Test

#1 Practice

57. Person

A spends

er time

at the

ibrary on the

weekends nd

efrains

rom consuming

ny

drugs

or alcohol.

However,

personB consumes

a

large

quantity

of alcohol

and drugs

numerous

timesa

week.

Which

of the

following

organelles

s responsible

for

person

B's ncreased

olerance

or drugs

and

alcohol?

(A)Lysosomes

(B)

Peroxisomes

(C)

Ribosomes

(D)

Smooth

endoplasmic

eticulum

(E)

Golgi apparutus

58.

Base

your

answer o

the following

question

on

the

picture

below.

Which statement

bout he organelle

shown

s

INCORRECT?

(A)

It is responsible

or convertingenergy

rom

organic

molecules

lto useful energy

or the

cell

(B)

The basisof

energy n the cell

is ADP

(C)

It hasa characteristic

ouble

membrane

(D)

It has olds known

as cristae

(E) Theorganelle s found n plantcells

Recycling

f cellular

materialss a

process

known as

59.

(A)

autophagy

@)

autosomy

(C)

conservation

(D)

redistribution

(E)

noneof the above



61.

62.

60.

Passagehrough

he nuclear

membrane

s

regulated y

(A)

dense

hromatin egions

(B)

embedded

roteins

n ring

conformation

(C)

microtubules

(D)

nucleolus

RNA

(E)

rough endoplasmic

eticulum

What

s the main role of

the endoplasmic

reticulum?

(A)

Intracellular

ransport

(B)

Protein synthesis

(C)

ntracellular

igestion

(D)

Cellular

respiration

(E)

Muscle

contraction

All of the following

statements

bout he

digestive

properties

ofa lysosome re

coffect

EXCEPT

(A)the

Golgi apparatus

ends

esicles illed

with hydrolytic enzymes

o the ysosome

(B)

lysosomesusewith food

vacuoles ormed

from

phagocytosis

(C)

ysosome ontents an

kill a cell upon

irst

contactwith t}le

cytosol

(D)the ysosomal

membrane

umpsH* from he

cytosol

nto its lumen

(E)

lysosomes an

program

he death

of the cell

in which it is contained

All

of the following are unctions

of

vacuoles

EXCEPT

(A)temporary

eceptacles

f nutrients

@)

store

starch,

pigmentsand oxic substances

(C)

exert

urgor on cell

walls

(D)collect

and

purnp

excess

aterout ofthe

cell

(E)

break-downof

toxic substances

The ability

of cells o carry out different

processes

imultaneously

s maximized

by

(A)

compartmentalization

(B)

an endomembrane

ystem

(C)

enzyrnes

(D)

ncreased

urfacearea

(E)

all of the

above

63.

64.

Q2

Test

#1 Practice

65

During the creation

of a secretory

rotein,

a

vacuolewill travel

which of the

following

pathways?

(A)

nucleolus

Golgi

apparatus

ribosome

-

plasma

membrane

(B)

nucleus

RER

-

Golgi

apparatus

plasma

membrane

(C)

nucleus

RER

lysosome

plasma

membrane

(D)plasmamembrane

SER ribosome

nucleus

(E)

ribosome

Golgi

apparatus

nucleolus

- plasma

membrane

66.

A student

ooking tlrough

a light microscope

n

the lab finds

many small

structures

n

a

sample

of

pond water.

The studentcouldhaveseenall ofthe following

EXCEPT

(A)frog

eggs

(B)

animal cell

nucleus

(C) plant

cell

mitochondria

(D)

bacteria

(E)

animal ell ribosomes



67'

A cell

regulates

maabolic pathways

by

controlling

the

various

activities

of its

eazymes.

(a)

Discuss

he

diffferences

etween

catabolic a&way

and

an

anabolic

athway.

(b)

hccribe

theconfomrational

hanges

trat

esutt

Orulag

llostoi

o g,i;-o'o-i1an

enzyme.

68.

Many

eukaryotic

ells

ely

on he

stuctural

advantages

fcilia.

(a)

Describe

he ntemar

tructure

f

cifu

and

explnin

how

orm

its

firnction.

(b)

D,escribe

he

ciliate

motion

ofdynein.\rnlking.,,

(c)

Dircnss

he

mportance

f cilia

within

he

human

odv,



Q2

Test#1 Practice

Answer

Key

1.D

2.B

U

5.B

6.B

9.B

10. c

11. A

t2. A

13. E

14. E

C

D

B

B

C

B

22.

A

23. E

24. A

25. A

26. B

A

D

D

c

D

E

A

E

B

C

49.

C

50.

D

51. C

52.

E

53.

B

54.

A

55. A

56.

A

57. D

58. B

59.

A

60. B

61. A

62.

C

63. E

64. E

65.

B

66. E

o/.

(a)

The metabolismof

an organism s

a tightly

regulatedevent hat

is

concemed

with

managingmaterials

and

energy

esources.

Metabolic

pathways

an

be divided

nto two

subtopics.

The catabolic

pathways

within an

organism

ake complex

moleculesand break

them down nto simpler'

compounds,

eleasing

the stored

energy. The

released nergycan now

be usedby the cell to

perform

work. In

contrast

o catabolic

pathways,

nabolic

pathways

ake simpler

molecules ndbuild

complexmolecules.

This

pathway

consumes

energy, nsteadof

releasing

t. An example

of this pathwaywould

be to take monomers

andmake hem

nto

polymers.

(b)

Regulation fa cell

is accomplished

y the

closemonitoring of

the

enzlmes n metabolic

pathways.

An allosteric

enz1rmescillates

between

wo enzymatic

states, ne

hat s active,

and anotherone hat s

inactive. The allosteric

site

of the enryme s a

site

hat s

separate

rom

the active

site,

and

causeshe enryme o

change hape,

preventing

or allowing

the entrance f a

substrate

molecule nto

the active site.

The

inhibition or stimulation

of an allosteric

enzyme'sactivity is an

effectiveway to regulate

metabolicactivity

within a cell.

68.

27.

28.

29.

30.

31.

32.

JJ .

34.

35.

36.

Jt .

38.

39.

3.

+.

7.

8.

4t.

A1

+J .

44.

45.

40 .

47.

15.

t6.

17.

18.

19.

20.

21.

40. A

B

D

D

c

B

C

B

8.



Q2

Test#1

Practice

Answer

Key

Cilia

are usually

present

n large

quantities

on the surface

of cells.

The nternal

structure

s important

n

understandingowcilia

functions

within the

cell.

Within

the body

of

the cilia are

microtubules

arranged

'

n u 9

+2

arrangement.

Proteinsattach

each

ing

of

microtubule

doublet

to the

plasma

membrane

of

thecilia and spokes

attach

he outer doublets

to two inner

microtubules

n the

center.

The ocation

and

numberof

microtubules

within he sing.le

ilia

make

he structure

a

powerhouseor

movement.

Dynein walking

refers he movements

f

the

proteins

attaching

one microtubule

doublet

to the

next. Through

a

repeated

rip

and

release

motion,

similar to

that n

musclecontraction,

he

cilia creates

beating

motion. Themotion

s

referred o as walking

because

f the

protein,

dynein,

attaching o

one

microtubuledoublet,

releasing,

nd hen

reattaching

urther down

the same

microtubule.

Within the

human

body, cilia are

responsibleor the

movementof materials

along.

For example

cilia

line the respiratory

system,

nd

with the

helpof mucous,

atch

debris hat enters

through he

noseand

mouth,

preventing t

from entering he ungs.

Cilia

can also

be found

within

the reproductive

systemof

females,along

the fallopian

ubes.

The

cilia

aid the transport

of

the olum

from the

ovary

to the

uterus.

ap biology cell test

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