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bio 210 exam

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Quiz on bio 210 exam, created by jostenhardy on 01/04/2016.
jostenhardy
Quiz by jostenhardy, updated more than 1 year ago
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Created by jostenhardy over 8 years ago
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Question 1

Question
Which of the following is a function of a smooth mucle?
Answer
  • communication
  • production of body heat
  • constriction of organs and vessels
  • respiration

Question 2

Question
What type of connective tissue surrounds individual muscle fibers?
Answer
  • epimysium
  • perimysium
  • muscular fascia
  • endomysium

Question 3

Question
what is the plasma membrane of a muscle fiber called?
Answer
  • sarcoplasm
  • sarcomere
  • sarcolemma
  • endomysium

Question 4

Question
myofibrils are formed from _________ that are joined end to end.
Answer
  • actin myofilaments
  • sarcomeres
  • myosin myofilaments
  • sarcolemmas

Question 5

Question
The thick filament is also known as the _______________ myofilament?
Answer
  • myosin
  • titin
  • actin
  • troponin

Question 6

Question
which molecule covers the active site on the G actin?
Answer
  • tropomyosin
  • troponin
  • titin
  • m line

Question 7

Question
which molecule has a binding site for calcium?
Answer
  • tropomyosin
  • troponin
  • titin
  • m line

Question 8

Question
which of the following in NOT a part of the myosin molecule?
Answer
  • rod
  • M line
  • hinge region
  • head

Question 9

Question
the A band is made up of
Answer
  • myosin and titin
  • Z disk and actin
  • M line and Z disk
  • actin and myosin

Question 10

Question
the structural and functional unit of skeletal muscle is the
Answer
  • sarcolemme
  • actin myofilament
  • sarcomere
  • myosin myofilament

Question 11

Question
What shortens during the sliding filament model of muscle contraction?
Answer
  • H Zone, A band, and sarcomere
  • 10 bands, 50 bands, 100 bands, fk it man, lets just not even discuss it man
  • sarcomere, H zone, and I band
  • A band, I band, and H zone

Question 12

Question
The binding of acetylcholine to a ligand-gated channel will allow ______ to enter the muscle fiber
Answer
  • calcium ions
  • potassium ions
  • sodium ions
  • All of the choices are correct

Question 13

Question
which of the following is NOT part of a neuromuscular junction?
Answer
  • motor end-plate
  • presynaptic terminal
  • sarcoplasmic reticulum
  • synaptic cleft

Question 14

Question
by what process does acetylcholine move to the postsynaptic membrane?
Answer
  • active transport
  • endocytosis
  • exocytosis
  • osmosis

Question 15

Question
what is the direct cause of the release of calcium ions from the sarcoplasmic reticulum?
Answer
  • ACH binding to the recepton of the Na+ gated channel
  • calcium being released into the presynaptic terminal
  • the action potential traveling into the T tubules
  • potassium flowing out of the postsynaptic membrane

Question 16

Question
what is ATP directly used for in cross-bridge movement of myosin?
Answer
  • Attachment of the myosin head to the active site of actin
  • the power stroke of the myosin head
  • the release of the myosin head from the actin
  • all are correct

Question 17

Question
which of the following is NOT an event that occurs during the lag phase of a muscle twitch?
Answer
  • ACH diffuses across the synaptic cleft
  • the action potential travels down the T tubules
  • cross-bridges between actin and myosin are formed
  • calcium ions bind to troponin

Question 18

Question
how does the body respong to an increase in body temperature due to exercise?
Answer
  • shivering
  • decreased muscle contractions
  • dilation of skin blood vessels and sweating
  • slower respiration

Question 19

Question
what causes muscle hypertrophy?
Answer
  • an increase in the number of muscle fibers
  • fibers increase the number of myofibril and sarcomere
  • skeletal muscle cell nuclei divide
  • all are correct

Question 20

Question
sensory receptors and nerves make up the
Answer
  • Peripheral nervous system
  • enteric nervous sustem
  • autonomic nervous system
  • central nervous system

Question 21

Question
a bundle of axons and their connective tissue sheaths are called
Answer
  • receptors
  • nerves
  • ganglia
  • effectors

Question 22

Question
the enteric nervous system involves the
Answer
  • respiratory system
  • urinary sytem
  • cardiovascular system
  • digestive system

Question 23

Question
what organelle in the neuron is the primary site of protein synthesis
Answer
  • rough ER
  • smooth ER
  • nucleolus
  • nissl substance

Question 24

Question
neurotransmitters are found in the
Answer
  • dendritic spines
  • Presynaptic terminals
  • trigger zone
  • soma

Question 25

Question
which of the following is NOT a functional classifications of neurons
Answer
  • interneuron
  • Bipolar neuron
  • sensory neuron
  • motor neuron

Question 26

Question
most sensory neurons are
Answer
  • Unipolar
  • multipolar
  • bipolar
  • tripolar

Question 27

Question
which of the following neuroglia are NOT found in the CNS
Answer
  • schwann cells
  • oligodendrocytes
  • astrocytes
  • ependymal cells

Question 28

Question
which type of neuroglial cells are responsible for the formation of the blood-brain barrier
Answer
  • schwann cells
  • oligodendrocytes
  • astrocytes
  • ependymal cells

Question 29

Question
which type of neuroglial cells respond to inflammation and are phagocytic
Answer
  • microglial
  • ependymal cells
  • oligodendrocytes
  • astrocytes

Question 30

Question
the oligodendrocytes form
Answer
  • the blood brain barrier
  • The myelin sheath around CNS axons
  • the myelin sheath around PNS axons
  • cerebrospinal fluid

Question 31

Question
groups of cell bodies and nonmyelinated axons form
Answer
  • gray matter
  • white matter
  • nerve tracts
  • ganglia

Question 32

Question
collections of myelinated axons in the CNS are called
Answer
  • ganglia
  • nerve tracts
  • nuclei
  • nerves

Question 33

Question
which of the following is NOT found in high concentration outside of a nerve cell
Answer
  • Na+
  • Cl-
  • Ca2+
  • K+

Question 34

Question
what type of membrane channels are nongated and responsible for the permeability of the membrane at rest?
Answer
  • Na-K pump
  • Leak Channels
  • ligand gated ion channels
  • volatge gated ion channels

Question 35

Question
which of the following is NOT true about changes in the membrane potential
Answer
  • an increase in the movement of potassium out of the cell creates a hyperpolarization
  • an increase in the movement of calcium ions into the cell creates a hyperpolarization
  • an increase in the movement of sodium ions into the cell causes depolarization
  • an increase in the movement of chloride ions into the cell causes hyperpolarization

Question 36

Question
the continued movement of potassium ions out of the cell through open voltage-gated K+ channels is called
Answer
  • polarization
  • depolarization
  • Repolarization
  • hyperpolarization

Question 37

Question
complete insensitivity to additional stimuli, no matter how strong is called the
Answer
  • absolute refractory period
  • threshold period
  • relative refractory period
  • all or none principle

Question 38

Question
which of the following is NOT part of a chemical synapse
Answer
  • connexons
  • postsynaptic terminal
  • synaptic cleft
  • presynaptic terminal

Question 39

Question
what type of summation occurs when two action potentials arrive in close succession at the presynaptic terminal that add together to produce an action potential
Answer
  • temporal summation
  • excitatory summation
  • spatial summation
  • oscillating summation

Question 40

Question
a neuron pathway with many presynaptic neurons synapsing with one postsynaptic neuron is called a
Answer
  • oscillating circuit
  • convergent pathway
  • parallel pathway
  • divergent pathway

Question 41

Question
which of the following is NOT a part of the study of anatomy
Answer
  • the structure of body parts
  • predicting the body's responses to stimuli
  • microscopic organization
  • the relationship between structure and function

Question 42

Question
which anatomical body region is NOT matched with its common name
Answer
  • brachial- arm
  • pectoral- chest
  • coxal- hip
  • crural- ankle

Question 43

Question
which of the following is NOT true about isotopes
Answer
  • isotopes are two or more forms of the same element
  • isotopes have different atomic numbers
  • isotopes have different mass numbers
  • some isotopes are radioactive

Question 44

Question
the folding or bending of the polypeptide chain into an alpha-helix or beta-pleated sheet held by hydrogen bonds is the _________ structure of a protein
Answer
  • primary
  • secondary
  • tertiary
  • quaternary

Question 45

Question
in a solution of sugar and water, which of the following is true?
Answer
  • sugar is the solvent and water is the solution
  • sugar is the solute and water is the solvent
  • sugar is the solvent and water is the solute
  • sugar and water are both getting turnt tonighttttt

Question 46

Question
the use of protein molecules to move non-lipid soluble molecules and ions through the plasma membrane is called
Answer
  • osmosis
  • simple diffusion
  • lysis
  • mediated transport

Question 47

Question
what type of cell is found in cartilage
Answer
  • fibroblast
  • osteocyte
  • chondrocyte
  • osteoclast

Question 48

Question
which of the following is NOT a type of internal body membrane
Answer
  • synovial membrane
  • serous membrane
  • cutaneous membrane
  • mucuous membrane

Question 49

Question
which is the correct sequence of the strata of the epidermis from deep to superficial? 1. Stratum Lucidum 2. Stratum basale 3. stratum corneum 4. stratum granulosum 5. stratum spinosum
Answer
  • 3 1 4 5 2
  • 1 2 3 4 5
  • 2 5 4 1 3
  • 4 2 3 1 5

Question 50

Question
the formation of bone by osteoblasts is called
Answer
  • ossification
  • osteogenesis
  • resorption
  • both ossification and osteogenesis

Question 51

Question
the elevated ridges of tissue on the surface of the cerebral hemispheres are known as __________ while the shallow grooves are termed _______
Answer
  • sucli: gyri
  • gyri: sucli
  • ganglia: gyri
  • tracts: ganglia

Question 52

Question
a stroke in the primary motor area has caused Austin to lose control over his skeletal muscles on the right side of his body. What lobe of his brain was damaged?
Answer
  • occipital lobe
  • temporal lobe
  • frontal lobe
  • parietal lobe

Question 53

Question
Kegen has a brain injury: she knows what she wants to say but cant vocalize the words. the part of her brain that deals with the ability to speak is the
Answer
  • longitudinal fissure
  • gyrus
  • central sulcus
  • Broca's area

Question 54

Question
the midbrain, pons, and medulla oblongata are housed in the
Answer
  • armpit
  • hypothalamus
  • brain stem
  • pineal gland

Question 55

Question
which lobe contains the primary motor area and enables the voluntary control of skeletal muscle movements
Answer
  • parietal lobe
  • temporal lobe
  • occipital lobe
  • frontal lobe

Question 56

Question
the pituitary gland is most closely associated with the
Answer
  • hypothalamus
  • thalamus
  • pineal gland
  • midbrain

Question 57

Question
the area of the brain stem that plays a role in consciousness and the sleep/wake cycles is the
Answer
  • thalamus
  • reticular activating system
  • pineal gland
  • limbic system

Question 58

Question
control of temperature, endocrine activity, metabolism, and thirst are functions associated with the
Answer
  • medulla oblongata
  • cerebellum
  • hypothalamus
  • thalamus

Question 59

Question
the vital centers for the control of visceral activities such as heart rate, breathing, blood pressure, swallowing, and vomiting are located in the
Answer
  • pons
  • medulla oblongata
  • midbrain
  • cerebrum

Question 60

Question
loss of muscle coordination results from the damage to the
Answer
  • cerebrum
  • hypothalamus
  • cerebellum
  • thalamus

Question 61

Question
which one of the following represents the correct sequence from the outermost to innermost layers of the meninges
Answer
  • dura: arachnoid: pia
  • pia: arachnoid: dura
  • arachnoid: dura: pia
  • dura: spider: pia

Question 62

Question
the cerebrospinal fluid
Answer
  • is secreted by the arachnoid villa
  • enters the four ventricles after filling and circulating through the subarachnoid space
  • is secreted mostly by the ependymal cells lining the brain ventricles
  • is continually formed mostly by the choroid plexuses

Question 63

Question
the gray matter of the spinal cord
Answer
  • surrounds the central canal
  • contains myelinated fiber tracts
  • is made up of the dorsal, lateral, and ventral columns
  • surrounds the white matter of the spinal cord

Question 64

Question
which one of the following is the correct sequence in connective tissue sheaths, going from outermost to innermost layer
Answer
  • epineurium, endoneurium, perineurium
  • epineurium, perineurium, endoneurium
  • perineurium, epineurium, endoneurium
  • perineurium, endoneurium, epineurium

Question 65

Question
who is the coolest cat of them all, not including Brennan
Answer
  • Josten
  • Kegen
  • Lindsey
  • Austin

Question 66

Question
which of the following is NOT true of skeletal muscle
Answer
  • long, cylindrical fibers
  • multiple nuclei
  • totally under involuntary control
  • has striations

Question 67

Question
what type of connective tissue surrounds bundles of muscle fibers to create the muscle fascicles
Answer
  • epimysium
  • perimysium
  • muscular fascia
  • endomysium

Question 68

Question
what is the plasma membrane of a muscle fiber called
Answer
  • sarcoplasm
  • sarcomere
  • sarcolemma
  • endomysium

Question 69

Question
myofibrils are formed from __________ that are joined end to end
Answer
  • actin myofilaments
  • sarcomeres
  • myosin myofilaments
  • sarcolemmas

Question 70

Question
which molecule covers the active site on the G actin
Answer
  • tropomyosin
  • troponin
  • titin
  • M line

Question 71

Question
the H zone is where
Answer
  • there is only actin
  • there is only myosin
  • there is only the Z disk
  • there is only titin

Question 72

Question
the structural and functional unit of skeletal muscle is the
Answer
  • sarcolemma
  • actin myofilament
  • sarcomere
  • myosin myofilament

Question 73

Question
what shortens during the siding filament model of muscle contraction
Answer
  • H zone, A band, and sarcomere
  • A band, I band, and sarcomere
  • sarcomere, H zone, I band
  • A band, I band, and H zone

Question 74

Question
there are ________ pairs of cranial nerves and _________ pairs of spinal nerves
Answer
  • 31, 12
  • 12, 25
  • 13, 31
  • 12, 31

Question 75

Question
the enteric nervous system involves the
Answer
  • respiratory system
  • urinary system
  • cardiovascular system
  • digestive system

Question 76

Question
which subdivision of the autonomic nervous system regulates resting or vegetative functions
Answer
  • parasympathetic
  • enteric
  • somatic
  • sympathetic

Question 77

Question
what organelle in the neuron is the primary site of protein synthesis
Answer
  • rough ER
  • smooth ER
  • nucleolus
  • nissl substance

Question 78

Question
the area of the neuron cell body that generates the action potential is the
Answer
  • trigger zone
  • soma
  • dendritic spine
  • none of the choices are correct

Question 79

Question
what type of summation occurs when two action potentials arrive in close succession at the presynaptic terminal that add together to produce an action potential
Answer
  • temporal summation
  • excitatory summation
  • spatial summation
  • oscillating summation

Question 80

Question
what produces cerebrospinal fluid
Answer
  • arachnoid granulations
  • dural sinuses
  • choroid plexuses
  • pia mater

Question 81

Question
what type of fibers connect areas of the cerebral cortex within the same hemisphere
Answer
  • association fibers
  • commissural fibers
  • projection fibers
  • cerebral penducles

Question 82

Question
what structure separates the frontal from the parietal lobe
Answer
  • longitudinal fissure
  • transverse fissure
  • central sulcus
  • lateral fissure

Question 83

Question
raised folds on the surface of the cerebrum are called
Answer
  • gyri
  • sulci
  • fissures
  • lobes

Question 84

Question
which of the following is NOT a function of the hypothalamus
Answer
  • body temperature control
  • autonomic nervous system control
  • mood and emotions
  • all of them

Question 85

Question
all sensory impulses except for smell are relayed through the
Answer
  • hypothalamus
  • epithalamus
  • thalamus
  • subthalamus

Question 86

Question
which of the following is NOT part of the diencephalon
Answer
  • hypothalamus
  • midbrain
  • thalamus
  • subthalamus

Question 87

Question
the white matter of the cerebellum is called the
Answer
  • folia
  • cerebellar penducles
  • arbor vitae
  • vermis

Question 88

Question
which of the following is NOT part of the brainstem
Answer
  • thalamus
  • pons
  • medulla oblongata
  • midbrain

Question 89

Question
the connective tissue wrap that surrounds many fascicles to form a nerve is the
Answer
  • epineurium
  • perineurium
  • endoneurium
  • dermaneurium

Question 90

Question
which of the following is the correct sequence of structures in a reflex arc
Answer
  • effector organ, motor neuron, interneuron, sensory neuron, sensory receptor
  • interneuron, sensory neuron, motor neuron, sensory receptor, effector organ
  • sensory receptor, sensory neuron, interneuron, motor neuron, effector organ
  • sensory receptor, sensory neuron, motor neuron, interneuron, effector organ
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