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WorksheetsCOMPREHENSIVE TEST- BST
Total questions: 60
Worksheet time: 21mins
Name
Class
Date
1.
Typical value for the resting membrane potential of a nerve cell is __________.
a)
0V
b)
(-70 mV)
c)
(+80 mV)
d)
None of these.
2.
Cell membrane of an excitable cell is made mostly of _____________ molecules.
a)
proteins
b)
carbohydrates
c)
water
d)
lipids
3.
_____________ is known as the energy organelle in a cell.
a)
endoplasmic reticulum
b)
ribosomes
c)
mitochondria
d)
golgi apparatus
4.
At resting membrane potential, there is a slight excess of<br />____________ charges on the outside of the membrane,<br />
a)
positive
b)
negative
c)
neutral
d)
both sides equal
5.
In facilitated diffusion, the diffusion of particles is ___________ the concentration gradient
a)
down
b)
against
c)
particles don’t move
d)
none of these
6.
Transport through ____________ is not an assisted transport in a cell membrane
a)
pumps
b)
voltage gated channels
c)
carrier molecules
d)
leak channels
7.
In the phospholipid bilayer of the cell membrane the non polar tails are arranged ________________.
a)
facing the ICF
b)
facing the ECF
c)
facing the interior of the membrane
d)
none of these
8.
Gap junctions are not found in __________________.
a)
skeletal muscle
b)
atrial muscle
c)
smooth muscle
d)
ventricular muscle
9.
The equilibrium potential of potassium in a typical nerve cell is ______________.
a)
positive
b)
negative
c)
zero
d)
none of these
10.
At the peak of the action potential in a nerve cell the cell potential tries to reach the equilibrium potential of ________ ions.<br />
a)
calcium
b)
chlorine
c)
potassium
d)
sodium
11.
Which ion does not play a major role in the generation of action potentials in neruve cell?
a)
sodium
b)
potassium
c)
chlorine
d)
calcium
12.
Under resting conditions the excitable cell is in the _____________ state.
a)
deploarized
b)
repolarized
c)
hyperpolarized
d)
polarized
13.
The conduction in which the impulse<br />“jumps” from node to node in a myelinated fiber is called _______________.
a)
saltatory conduction
b)
non saltatory conduction
c)
assisted conduction
d)
none of these
14.
In a neuromuscular junction the neurotransmitters are stored in ______________.
a)
synaptic knob
b)
synaptic vesicle
c)
synaptic cleft
d)
postsynaptic membrane
15.
Which ion initiates the conduction of action potentials across the neuromuscular junction?
a)
sodium
b)
potassium
c)
magnesium
d)
calcium
16.
_____________ is not an excitable tissue.
a)
epithelial tissue
b)
nerve tissue
c)
muscle tissue
d)
cardiac musce tissue
17.
Summing of EPSPs occurring very close together in time<br />as a result of repetitive firing of a single presynaptic input is<br />known as ___________________.
a)
amplitude integration
b)
temporal integration
c)
spatial integration
d)
none of these
18.
_______________ is an example of a modulatory neuroransmitter
a)
acetyl choline
b)
AMPA
c)
NMDA
d)
dopamine
19.
_____________ is an example of an autorhythmic cell.
a)
AV node
b)
atrial cells
c)
neuronal cells
d)
muscle cells
20.
______________ has the fastest rhythm of AP generation.
a)
myosin filaments
b)
AV node
c)
SA node
d)
Purkinje fibers
21.
The average action potential recorded in a ventricular muscle fiber
a)
105 mV
b)
500mV
c)
1V
d)
100V
22.
In the region of Cochlea The nerve fibers stimulated by the hair cells lead to the
a)
Retina
b)
Endothelium
c)
Basilar Memberabe
d)
Spiral ganglion of Corti
23.
_________________ wave in EEG is indicator of the depth of anaesthesia in the operating room.
a)
Alpha
b)
Beta
c)
Delta
d)
Gamma
24.
When light energy is absorbed by rhodopsin, the rhodopsin begins to decompose within a very small fraction of a second (nanoseconds) , as _____________
a)
Lumirhodopsin
b)
Metarhodopsin I
c)
Bathorhodopsin
d)
Metarhodopsin II
25.
Based on Einthoven’s Law and Einthoven’s Trangle the right arm is −0.2 millivolts (negative) with respect to the average potential in the body, the left arm is +0.3 millivolts (positive), and the left leg is +1.0. What is potential at Lead 1<br />millivolts (positive)
a)
Negative potential of +0.5 mV
b)
Positive potential of +0.5 mV
c)
Positive potential of +0.7 mV
d)
Negative potential of +0.7 mV
26.
In cardiac muscle, the action potential is caused by opening of ion channels
a)
Fast Ca2+ Slow K+
b)
Fast Na+ Slow K+
c)
Fast Ca2+ Slow Na+
d)
Fast Na+ Slow Ca2+
27.
The scala media is filled with a fluid
a)
Perilymph
b)
Endolymph
c)
Endocardium
d)
Pleura
28.
If a person remains in darkness for a long time, the retinal and opsins in the rods and cones are converted back into the light-sensitive pigments. Furthermore, _________________is converted back into retinal to increase lightsensitive pigments, the final limit being determined by the amount of opsins in the rods and cones to combine with the retinal. This is called_________________
a)
Vitamin A ,dark adaptation
b)
Vitamin D ,Night adaptation
c)
Vitamin D ,Light adaptation
d)
Vitamin A ,Light adaptation
29.
In voluntary contraction of the skeletal muscle, the muscle potentials range from____________
a)
50 V to 500V
b)
48 muV to 500 mV
c)
50 mV to 1000mV
d)
50 muV to 5 mV
30.
Raman spectra can be utilized to identify molecules such as glucose because these spectra are characteristic of variations in the __________ and ________________
a)
Reflection , Scattering
b)
Molecular polarizability, Dipole moments
c)
Absorption, Molecular disintegration
d)
Scattering, Dipole moment
31.
Which among the following is not a method for optical detection
a)
Fluorescence
b)
Surface-enhanced Raman scattering
c)
Flow-through enzyme-based biosensors
d)
Reflectometric Interference
32.
Sandwich-type biosensors are based on ___________________ biorecognition element
a)
Nuclei Acid
b)
Enzyme
c)
Nonenzymatic Proteins
d)
Biomimetic Receptors
33.
Antibody-based nanobiosensors were developed and characterized for _______________________ DNA adduct of the carcinogen benzo[a]pyrene (BaP)
a)
benzo[a]anthracene
b)
benzo[b]fluranthene
c)
benzo[b] furan
d)
benzo[a]pyrene tetrol
34.
The total duration of the cardiac cycle,
a)
72
b)
100
c)
0.013888888888888888
d)
1/100
35.
Sodium flows into a photoreceptor (e.g., rod) through ___________ channels. Potassium flows out of the cell through ______________channels.
a)
gGMP-gated ,nongated potassium
b)
cGMP-gated ,nongated potassium
c)
gGMP-gated ,gated potassium
d)
cGMP-gated ,gated potassium
36.
QRS complex is caused by _______________
a)
Ventricles depolarize
b)
Ventricles repolarize
c)
Auricles depolarize
d)
Auricles repolarize
37.
Frequency range of Gamma Waves
a)
0.5–4 Hz
b)
4–8 Hz
c)
8–13 Hz
d)
22–30 Hz
38.
The waveforms represented in terms of aVR,aVL & aVF are obtained from which lead system?
a)
Augmented Unipolar Limb Leads
b)
Chest Leads
c)
Precordial Leads
d)
Bipolar Limb Leads
39.
EMG waves are recorded using_____________ electrodes
a)
Limb
b)
Needle
c)
Floating
d)
Pregelled Disposable
40.
Lectins are proteins that bind to _______________________or single-sugar residues.
a)
Glucose
b)
Polysaccharides
c)
Monosaccharides
d)
Oligosaccharides
41.
Which sensor is LM35?
a)
Pressure sensor
b)
Humidity sensor
c)
Temperature sensor
d)
Touch sensor
42.
A _______ is a thermally sensitive resistor that exhibits a large change in resistance.
a)
Thermistor
b)
Resistance thermometer
c)
Thermocouple
d)
Semiconductor based sensor
43.
______ consists of two different metals connected at two points.
a)
Thermistor
b)
Resistance thermometer
c)
Thermocouple
d)
Semiconductor based sensor
44.
Which type of temperature sensor is placed in Integrated circuis?
a)
Thermistor
b)
Resistance thermometer
c)
Thermocouple
d)
Semiconductor based sensor
45.
Which sensor is linear and has low accuracy?
a)
Thermistor
b)
Resistance thermometer
c)
Thermocouple
d)
Semiconductor based sensor
46.
Which of the following conversion takes place in bourdon tubes?
a)
Pressure to voltage
b)
Pressure to strain
c)
Pressure to displacement
d)
Pressure to force
47.
Which of the following devices convert pressure to displacement?
a)
Bellow
b)
Diaphragm
c)
Capsule
d)
Both diaphragm and capsule
48.
Which of the following is not a type of pressure sensing element?
a)
Orifice plate
b)
Manometer
c)
Bourdon tube
d)
Bellows
49.
Which of the following is not a piezo-electric material?
a)
quartz
b)
rochelle salt
c)
aluminium
d)
barium titanate
50.
Which of the following is a material employed making diaphragm to measure pressure?
a)
tourmaline
b)
barium titanate
c)
phosphor bronze
d)
zirconate titanate
51.
Principle behind strain gauge is _____________
a)
variable resistance
b)
variable inductance
c)
variable capacitance
d)
variable contact area
52.
Strain gauge is used to measure ______________
a)
Temperature
b)
Pressure
c)
Height
d)
Displacement
53.
The cathode head in Xray tube is made up of ____
a)
Aluminum
b)
Pure Nickel
c)
Iron
d)
Barium nitrate
54.
"The face of the anode is angled to provide a larger actual target area to receive the bombardment of electrons", this principle is known as ____
a)
Focus principle
b)
Main focus principle
c)
Line focus principle
d)
target principle
55.
A fixed anode Xray tube for general use has a _____ target button implanted in the surface of a solid copper block.
a)
Tungsten& nickel
b)
Tungsten&rhenium
c)
Tungsten & silver
d)
Nickel
56.
In X-ray emission tubes, X-ray is emitted by the acceleration of ________________
a)
Atoms
b)
Protons
c)
Electrons
d)
Neutrons
57.
The wavelength range of X-rays is _____________
a)
1 mm to 700 nm
b)
400 nm to 1 nm
c)
1 nm to 0.001 nm
d)
0.1 m to 1 mm
58.
X-rays are produced effectively electrons when they strike ____________
a)
Dense metal anode
b)
Dense Metal cathode
c)
Fluorescent metal
d)
Non-metal
59.
Source of Bioelectric potential is in _____nature.
a)
electronic
b)
electric
c)
ionic
d)
mechanical
60.
The principal ion that is not involved with the phenomena of producing cell potentials is
a)
sodium
b)
potassium
c)
chlorine
d)
hydrogen
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