Biology 1202 Exam Questions and Answers| New Update with 100% Correct Answers
Fungi include:
A.yeasts.
B.decomposers.
C.pathogens.
D.smuts.
E.All of these choices are correct. 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. 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 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. A
Which of the following fungal structures aid in spore dispersal?
,A.fruiting bodies
B.septa
C.mycelia
D.pores
E.hyphae 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. 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 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. 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 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 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 C
A neuron that responds to the environment is a(n):
A.interneuron.
B.motor neuron.
C.homeostatic neuron.
D.sensory neuron. D
Neuronal stimuli are received by:
A.dendrites.
B.axons.
C.neurotransmitters.
, D.cell nuclei. A
Which of the following is found in the synapse?
A.nucleus
B.neurotransmitter
C.cell body
D.myelin sheath B
What type(s) of cells produce myelin for sensory neurons?
A. melanocytes
B. astrocytes
C. glial cells
D. pyramidal neurons 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 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. A, B
How is a nerve impulse generated when most sensory receptors are activated?
A.The action potential is converted to a binary code.
Fungi include:
A.yeasts.
B.decomposers.
C.pathogens.
D.smuts.
E.All of these choices are correct. 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. 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 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. A
Which of the following fungal structures aid in spore dispersal?
,A.fruiting bodies
B.septa
C.mycelia
D.pores
E.hyphae 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. 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 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. 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 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 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 C
A neuron that responds to the environment is a(n):
A.interneuron.
B.motor neuron.
C.homeostatic neuron.
D.sensory neuron. D
Neuronal stimuli are received by:
A.dendrites.
B.axons.
C.neurotransmitters.
, D.cell nuclei. A
Which of the following is found in the synapse?
A.nucleus
B.neurotransmitter
C.cell body
D.myelin sheath B
What type(s) of cells produce myelin for sensory neurons?
A. melanocytes
B. astrocytes
C. glial cells
D. pyramidal neurons 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 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. A, B
How is a nerve impulse generated when most sensory receptors are activated?
A.The action potential is converted to a binary code.
