Biology 1202 Questions and Answers A+ Graded (2025.

Biology 1202 Questions and Answers A+
Graded (2025)




Fungi .include:
A.yeasts.
B.decomposers.
C.pathogens.
D.smuts.
E.All .of .these .choices .are .correct. .- .CORRECT .ANSWER-E

Lichens .are .able .to .obtain .nutrients .from .their .environment .by:
A. .secreting .organic .acids .that .liberate .nutrients .from .surrounding .materials.
B. .associating .with .a .specific .photosynthetic .symbiont.
C. .digesting ."pollutants" .in .highly .polluted .environments.
D. .digesting .small .organisms .that .live .on .the .surface .of .the .lichen. .- .CORRECT
.ANSWER-A


Basidiomycetesare .the .only .fungal .group .that .produces .lignin .peroxidases,
.which .are .chemicals .that .can .break .down .lignin .and .lignified .tissues.
.Basidiomycetes .growing .within .a .fallen .log .would .get .less .nutrition .than
.ascomycetes .because .more .of .the .cellulose .in .the .log .would .be .available .to .be
.broken .down .and .absorbed.
A.true
B.false .- .CORRECT .ANSWER-False

The .development .of .septa .in .the .hyphae .of .fungi .was .an .important .evolutionary
.step. .Why? .
A. .If .a .hypha .is .damaged, .fungi .can .seal .septal .pores .to .prevent .the .cytoplasm
.from .leaking .out. .
B. .If .a .hypha .is .damaged, .septa .can .secrete .chemicals .to .attract .symbiotic
.cyanobacteria.
C. .Septa .can .produce .fungal .spores .during .both .sexual .and .asexual
.reproduction.
D. .Septa .can .produce .different .fungal .mating .types .that .aid .in .sexual
.reproduction. .- .CORRECT .ANSWER-A


Which .of .the .following .fungal .structures .aid .in .spore .dispersal?
A.fruiting .bodies
B.septa
C.mycelia

,D.pores
E.hyphae .- .CORRECT .ANSWER-A

In .a .parasexual .fungal .species, .genetic .diversity .would .be .the .result .of:
A. .meiotic .recombination.
B. .mitotic .recombination. .
C. .recombination .between .different .mating-type .alleles.
D. .plasmogamy .recombination.
E. .hyphae .recombination. .- .CORRECT .ANSWER-B

What .advantage(s) .has .the .evolution .of .the .brain .provided .over .ganglia? .Select
.all .that .apply.
A. .learning
B. .complex .behaviors
C. .environmental .perception
D. .reaction .to .touch .- .CORRECT .ANSWER-A,B,C

Cephalization .is .thought .to .be .an .adaptation .for: .Select .all .that .apply.
A. .taste .perception.
B. .forward .locomotion.
C. .predation.
D. .organ .function. .- .CORRECT .ANSWER-B,C

Squid .are .predatory .mollusks: .They .need .to .be .able .to .detect .both .sedentary
.and .highly .mobile .prey. .Which .of .the .following .would .you .expect .is .not .a
.property .of .this .animal's .nervous .system?
A. .cephalization
B. .nerve .net
C. .sense .organs
D. .bilateral .symmetry .- .CORRECT .ANSWER-B

What .do .all .bilaterians .have .in .common? .Select .all .that .apply.
A. .symmetrical .right .and .left .sides
B. .a .distinct .back .and .front .end
C. .a .brain .instead .of .ganglia .- .CORRECT .ANSWER-A,B

What .aspect(s) .of .a .neuron .are .consistent .in .the .diagram .above? .(Lecture .11)
A. .the .shape .of .the .cell .body
B. .the .branching .patterns .of .dendrites .and .axon .terminals
C. .the .presence .of .axons .and .dendrites
D. .the .length .of .the .axon
E. .the .number .of .potential .connections .between .that .neuron .and .its .neighbours
.- .CORRECT .ANSWER-C


A .neuron .that .responds .to .the .environment .is .a(n):
A.interneuron.
B.motor .neuron.
C.homeostatic .neuron.
D.sensory .neuron. .- .CORRECT .ANSWER-D

, Neuronal .stimuli .are .received .by:
A.dendrites.
B.axons.
C.neurotransmitters.
D.cell .nuclei. .- .CORRECT .ANSWER-A

Which .of .the .following .is .found .in .the .synapse?
A.nucleus
B.neurotransmitter
C.cell .body
D.myelin .sheath .- .CORRECT .ANSWER-B

What .type(s) .of .cells .produce .myelin .for .sensory .neurons?
A. .melanocytes
B. .astrocytes
C. .glial .cells .
D. .pyramidal .neurons .- .CORRECT .ANSWER-C

The .resting .membrane .potential .of .a .neuron .is .determined .by:
A. .movement .of .potassium .ions .relative .to .other .ions.
B. .negatively .charged .proteins .on .the .outside .of .the .cell.
C. .activation .of .voltage-gated .sodium .channels.
D. .diffusion .of .potassium .ions .through .sodium .ion .channels .- .CORRECT
.ANSWER-A


Which .of .the .following .is .true .of .electrical .synapses? .Select .all .that .apply.
A.They .enable .rapid .communication.
B.They .are .found .in .the .mammalian .brain.
C.They .release .neurotransmitter .molecules .through .exocytosis. .- .CORRECT
.ANSWER-A, .B


How .is .a .nerve .impulse .generated .when .most .sensory .receptors .are .activated?
A.The .action .potential .is .converted .to .a .binary .code.
B.The .membrane .becomes .hyperpolarized.
C.The .membrane .becomes .repolarized.
D.The .membrane .becomes .depolarized. .- .CORRECT .ANSWER-D

Sensory .receptors .convert ._________ .into .____________ .by .signal .transduction.
A.neurotransmitters; .synapses
B.physical .or .chemical .stimuli; .nerve .impulses
C.physical .stimuli; .sound
D.neurons; .sensory .organs .- .CORRECT .ANSWER-B

Chemoreceptor .is .to .taste .as .mechanoreceptor .is .to:
A.smell.
B.pain.
C.temperature.
D.sound. .- .CORRECT .ANSWER-D