Multiple Choice Questions
Control and Coordination
Practice Questions with Answers
Total 138 questions available
Q. 1
In humans, the life processes are controlled and
regulated by:
A
Nervous and endocrine systemsB
Endocrine and digestive systemsC
Respiratory and nervous systemsD
Reproductive and endocrine systemsClick an option to check your answer
Q. 2
Growth related movements are known as
A
non directional movementB
directional movementC
Both a) and b)D
tropic movementsClick an option to check your answer
Q. 3
Cranium is related to:
A
headB
limbsC
thoraxD
abdomenClick an option to check your answer
Q. 4
The upward or down ward movement of shoot and root respectively is influenced by gravity. Such movement is called
A
GravitismB
GeotropismC
Gravity movementD
GravitytropismClick an option to check your answer
Q. 5
People living in coastal areas suffer less from goiter. This is because
A
They eat sea foodB
All of the aboveC
They drink sea waterD
They bathe in sea waterClick an option to check your answer
Q. 6
Artifical ripening of fruit is carried out by
A
EthyleneB
AuxinsC
GibberellinsD
Abscisic acid (AB(a)Click an option to check your answer
Q. 7
Cretinism results due to :
A
under secretion of thyroxine.B
Cretinism results due to :C
excess secretion of adrenaline.D
under secretion of growth hormoneClick an option to check your answer
Q. 8
The root of a plant is
A
positively thigmotropicB
negatively geotropicC
positively geotropicD
positively phototropicClick an option to check your answer
Q. 9
Which hormone is more abundant in places where cells are quickly dividing, like in fruits and seeds?
A
PheromoneB
AuxinC
CytokininD
ReninClick an option to check your answer
Q. 10
The master gland of the body is the
A
pituitaryB
thyroidC
adrenalD
testisClick an option to check your answer
Q. 11
When a person is suffering from severe cold, he
or she can not:
A
differentiate red light from green light.B
differentiate the smell of a perfume from that of an agarbatti.C
differentiate a hot object from a cold objectD
differentiate the taste of an apple from that of an ice-cream.Click an option to check your answer
Q. 12
The part of brain which controls the involuntary actions such as heart beat, breathing, blood pressure, etc.is :
A
medullaB
cerebrumC
cerebellumD
ponsClick an option to check your answer
Q. 13
Impulse is generated when:
A
stimulus is gained.B
response is over.C
stimulus is over.D
response is going on.Click an option to check your answer
Q. 14
Which statement is not true about thyroxine?
A
Thyroxine regulates the basal metabolism of our body.B
Iron is essential for synthesis of thyroxine.C
Iodine is an important component required for synthesis of thyroxine.D
Under secretion of thyroxine causes simple goitre.Click an option to check your answer
Q. 15
Which statement is correct?
A
Cytokinin causes leaves to wilt.B
Electrical impulses cannot travel quickly.C
Plant hormones are made in one place but move to where they're needed.D
When light comes from one side of the plant, auxin moves towards the illuminated side of the shoot.Click an option to check your answer
Q. 16
A potted plant kept in a room tends to bend towards the direction of light. This movement is called
A
PhototropismB
PhotographismC
PhotonastismD
PhotoperiodismClick an option to check your answer
Q. 17
How do some plants like the pea plant climb up other plants or fences?
A
By flyingB
By crawlingC
By means of tendrilsD
By swimmingClick an option to check your answer
Q. 18
The endocrine organ present in human female but not in human male is
A
ThymusB
Pituitary glandC
OvaryD
TestisClick an option to check your answer
Q. 19
The gustatory receptors of our body are in one of the following organs. This organ is :
A
skinB
earC
tongueD
noseClick an option to check your answer
Q. 20
The olfactory receptors in humans are located in :
A
noseB
eyesC
tongueD
earsClick an option to check your answer
Q. 21
How do growth-related movements of plants compare to movements in response to day and night?
A
Slower thanB
Faster thanC
Equal toD
LikewiseClick an option to check your answer
Q. 22
Which of the following endocrine glands is
unpaired?
A
AdrenalB
TestesC
PituitaryD
OvaryClick an option to check your answer
Q. 23
All the voluntary actions of our body are controlled by :
A
ponsB
medullaC
cerebrumD
cerebellumClick an option to check your answer
Q. 24
What are the three parts of our hind brain?
A
Spinal cord, cerebellum, and medulla oblongataB
Hypothalamus, cerebrum, and cerebellumC
Mid-brain, medulla, and cerebellumD
Pons, medulla, and cerebellumClick an option to check your answer
Q. 25
Body coordination is exhibited by:
A
blood vascular systemB
nervous systemC
endocrine systemD
neuro-endocrine systemClick an option to check your answer
Q. 26
The dramatic changes in body features associated with puberty are mainly because of the secretions of :
A
estrogen from adrenal gland and testosterone from pituitary glandB
estrogen from testes and testosterone from ovaryC
testosterone from thyroid gland and estrogen from pituitary glandD
testosterone from testes and estrogen from ovaryClick an option to check your answer
Q. 27
The upward or down ward movement of shoot and root respectively is influenced by gravity. Such movement is called-
A
GravitismB
GeotropismC
Gravity movementD
GravitytropismClick an option to check your answer
Q. 28
What does it mean when it's said that a tendril is sensitive to touch?
A
It reacts to pressureB
It can feel heatC
It emits lightD
It moves randomlyClick an option to check your answer
Q. 29
Which term best describes the function of adrenaline in the body?
A
ConstrictorB
RegulatorC
StimulantD
HormoneClick an option to check your answer
Q. 30
The direction of impulse in a typical neuron is
A
Both a and b are wrongB
Axon to dendronC
Dendron to axonD
Both a and b are correctClick an option to check your answer
Q. 31
The brain is responsible for-
A
regulating heart-beatB
balancing bodyC
thinkingD
all of theseClick an option to check your answer
Q. 32
Pineal gland is situated on the
A
ventral surface of the forebrainB
dorsal surface of the hindbrainC
dorsal surface of the forebrainD
ventral surface of the midbrainClick an option to check your answer
Q. 33
What is the primary function of adrenaline in the body?
A
To slow down bodily functionsB
To limit tissue responseC
To provide wide-ranging changes to all cellsD
To reduce the effectiveness of chemical signalsClick an option to check your answer
Q. 34
If there is a deficiency of growth hormone the child becomes _____.
A
GiantB
DwarfC
BlindD
Mentally retardedClick an option to check your answer
Q. 35
The contraction of pupil of the eye in the presence of bright light is an example of :
A
Spinal reflexB
Adrenal reflexC
Cerebral reflexD
Voluntary reflexClick an option to check your answer
Q. 36
The timing and amount of hormone released is regulated by
A
feedback mechanismB
pituitary mechanismC
endocrine glandD
pancreasClick an option to check your answer
Q. 37
The structural and functional unit of nervous
system is:
A
AxonB
NephronC
NeuronD
CytonClick an option to check your answer
Q. 38
Learning is related to
A
CerebrumB
CerebellumC
HypothalamusD
ThalamusClick an option to check your answer
Q. 39
Medulla oblongata is
A
a part of the midbrainB
last part of the hindbrainC
a part of the hindbrainD
a part of the forebrainClick an option to check your answer
Q. 40
Why do plants like the pea plant use tendrils to climb?
A
To get exerciseB
To reach sunlightC
To avoid predatorsD
To support their growthClick an option to check your answer
Q. 41
The junction between two neurons is called
A
axonB
jointC
synapseD
dendriteClick an option to check your answer
Q. 42
Which glands secrete adrenaline in the body?
A
Pituitary glandsB
Adrenal glandsC
Thyroid glandsD
Pancreatic glandsClick an option to check your answer
Q. 43
Involuntary actions in the body are controlled by:
A
Medulla in fore brainB
Medulla in hind brainC
Medulla in spinal cordD
Medulla in mid brainClick an option to check your answer
Q. 44
What does the plant hormone abscisic acid do?
A
Manage diseases in plantsB
Aid in floweringC
Encourage plant heightD
Slow down plant growthClick an option to check your answer
Q. 45
Name the layer of brain from inside towards the
outside:
A
Piamater, Arachnoid and DuramaterB
Arachnoid, Duramater and PiamaterC
Duramater, Arachnoid and PiamaterD
Arachnoid, Piamater and DuramaterClick an option to check your answer
Q. 46
Which aspect of fruit development and ripening are affected by plant hormones?
A
Seed formationB
Sugar contentC
Color changeD
All of the aboveClick an option to check your answer
Q. 47
Reflex arc is formed by
A
neither of the aboveB
dorsal sensory nerve and ventral motor nerveC
both (a) and (b)D
ventral sensory nerve and dorsal motor nerveClick an option to check your answer
Q. 48
Which is a correct statement?
A
Cerebrum controls intelligence.B
Cranium is covered by cerebrospinal fluid.C
Cerebellum controls intelligence.D
Olfactory lobes and optic lobes lie in the sameregion .Click an option to check your answer
Q. 49
The function of sensory nerve is to carry
A
message from CNSB
detect heat / lightC
bones and nervesD
message to BrainClick an option to check your answer
Q. 50
What type of action is blinking of eyes?
A
Locomotor actionB
Skeletal movementC
Voluntary actionD
Reflex actionClick an option to check your answer
Q. 51
The brain is responsible for :
A
regulating the heart beatB
balancing the bodyC
all of the aboveD
thinkingClick an option to check your answer
Q. 52
Insulin helps in
A
regulating fat metabolismB
promoting growthC
regulating blood sugar levelsD
regulating amount of H2OClick an option to check your answer
Q. 53
What makes it seem like plants are moving in response to stimuli?
A
They can walkB
They can jumpC
Their growth is directionalD
They make soundsClick an option to check your answer
Q. 54
Involuntary actions including blood pressure, salivation and vomiting are controlled by the __________ in the hind-brain.
A
CerebellumB
MedullaC
CerebrumD
MedalsClick an option to check your answer
Q. 55
The use of iodised salt is recommended to prevent :
A
gonorrhoeaB
diabetesC
goitreD
dysenteryClick an option to check your answer
Q. 56
Dramatic changes of body features associated
with puberty are mainly because of secretion of:
A
Estrogen from adrenal gland and testosterone from pituitary gland.B
Estrogen from testes and testosterone from ovaryC
Testosterone from testes and estrogen from ovary.D
Testosterone from thyroid gland and estrogen from pituitary gland.Click an option to check your answer
Q. 57
Which of the following does not act as an endocrine gland as well as an exocrine gland ?
A
pituitaryB
pancreasC
pinealD
parathyroidClick an option to check your answer
Q. 58
The direction of impulse in a typical neuron is
A
Both a and b are wrongB
Axon to dendronC
Both a and b are correctD
Dendron to axonClick an option to check your answer
Q. 59
Which term is used interchangeably with "plant hormones"?
A
Organic substancesB
PhytohormonesC
Growth regulatorsD
Differentiation substancesClick an option to check your answer
Q. 60
Which of these plant hormones is a growth inhibitor?
A
CytokininB
GibberellinC
AuxinD
Abscisic acidClick an option to check your answer
Q. 61
What is the purpose of tendrils being sensitive to touch?
A
To avoid obstaclesB
To find waterC
To capture preyD
To climb up supportsClick an option to check your answer
Q. 62
____________ is a growth inhibiter hormone in plants.
A
Gibberellic acidB
AuxinC
Abscicic acidD
CytokininClick an option to check your answer
Q. 63
Sapna suffers from a condition due to which
her average blood sugar level is 174 mg/dL. The
average blood sugar level in a healthy adult is
<140 mg/dL.
Which of the following could be the cause of Sapna's condition?
Which of the following could be the cause of Sapna's condition?
A
excess production of thyroxine in her body.B
insufficient production of thyroxine in her body.C
excess production of insulin in her body.D
insufficeint production of insulin in her body.Click an option to check your answer
Q. 64
The substance that triggers the fall of mature leaves and fruits from plants is due to
A
AuxinB
GibberellinsC
CytokininD
Abscisic acidClick an option to check your answer
Q. 65
What does the brain do with the information from our senses?
A
It ignores itB
It interprets itC
It creates itD
It stores itClick an option to check your answer
Q. 66
Which among them is a reflex action?
A
Sensory - relay - motor neuronB
Relay - Motor -SensoryC
Motor neuron - relay - Motor neuronD
Sensory neuron ---- Motor neuron ---- Relay neuronClick an option to check your answer
Q. 67
Which part of the brain controls involuntary muscle actions?
A
MedullaB
CerebrumC
CerebellumD
HypothalamusClick an option to check your answer
Q. 68
The gap between two neurons is called _____
A
SynapseB
SynthesiseC
DendronD
AxonClick an option to check your answer
Q. 69
Which of the following are often called glands of emergency ?
A
adrenalB
thyroidC
pancreasD
pituitaryClick an option to check your answer
Q. 70
What makes up the peripheral nervous system?
A
Nerves from the brain and nerves from the spinal cord.B
Nerves from the skull and nerves from the spinal cord.C
Skull, spinal nervesD
Skull, spinal cordClick an option to check your answer
Q. 71
Why is it significant that different parts of the brain have specific functions?
A
It makes the brain less efficientB
It allows for better understanding of brain diseasesC
It hinders research effortsD
It doesn't impact brain functionsClick an option to check your answer
Q. 72
Brain is contained in a bony- box consisting of a fluid filled ballon for
A
protection of nervesB
shock absorptionC
sending informationD
connection with spinal cordClick an option to check your answer
Q. 73
The gap between two neurons is called _____.
A
DendronB
AxonC
SynapseD
SynthesiseClick an option to check your answer
Q. 74
If there is a deficiency of growth hormone the child becomes _____.
A
GiantB
DwarfC
BlindD
Mentally retardedClick an option to check your answer
Q. 75
If there is a deficiency of growth hormone the child becomes _____.
A
Mentally retardedB
DwarfC
BlindD
GiantClick an option to check your answer
Q. 76
What is the primary role of the human brain?
A
Controlling behaviorB
Digesting foodC
Pumping bloodD
Regulating body temperatureClick an option to check your answer
Q. 77
Which ofthe following is not a reflex action?
A
Knee jerkB
BoxingC
CoughingD
Eye lid closingClick an option to check your answer
Q. 78
In humans, the life processes are controlled and regulated by
A
Endocrine System and digestive systemsB
Nervous System and endocrine systemsC
Respiratory System and nervous systemsD
Reproductive System and endocrine systemsClick an option to check your answer
Q. 79
Dwarfism results due to :
A
less secretion of adrenaline hormoneB
less secretion of growth hormoneC
excessive secretion of thyroxine hormoneD
excessive secretion of growth hormoneClick an option to check your answer
Q. 80
Reflex action is controlled mainly by the
A
autonomous nervous systemB
peripheral nervous systemC
brainD
spinal cordClick an option to check your answer
Q. 81
The endocrine organ present in human female but not in human male is
A
OvaryB
Pituitary glandC
TestisD
ThymusClick an option to check your answer
Q. 82
CNS consists of:
A
brainB
spinal cordC
only cerebrumD
both (a) and (b)Click an option to check your answer
Q. 83
The response of plant parts towards light is called
A
chemotropismB
hydrotropismC
geotropismD
phototropismClick an option to check your answer
Q. 84
The activities of the internal organs are controlled by
A
the peripheral nervous systemB
the autonomic nervous systemC
none of theseD
the reflex arcClick an option to check your answer
Q. 85
A doctor advised a person to take injection of insulin because :
A
his blood sugar was highB
his thyroxine level in blood was highC
his heart beat was highD
his blood pressure was highClick an option to check your answer
Q. 86
What is the role of plant hormones in fruit development?
A
Inhibiting seed formationB
Accelerating sugar accumulationC
Controlling water absorptionD
Delaying color changeClick an option to check your answer
Q. 87
The upward or down ward movement of shoot and root respectively is influenced by gravity. Such movement is called
A
GravitytropismB
GeotropismC
GravitismD
Gravity movementClick an option to check your answer
Q. 88
____________ is a growth inhibiter hormone in plants.
A
Abscicic acidB
Gibberellic acidC
CytokininD
AuxinClick an option to check your answer
Q. 89
The growth of pollen tubes towards ovules is due to____.
A
geotropismB
hydrotropismC
chemotropismD
phototropismClick an option to check your answer
Q. 90
Which plant hormone makes cells grow longer on the side of the shoot that's not facing light?
A
AuxinB
ReninC
PheromoneD
CytokininClick an option to check your answer
Q. 91
How do tendrils help plants like the pea plant?
A
By providing shadeB
By aiding in climbingC
By attracting pollinatorsD
By collecting nutrientsClick an option to check your answer
Q. 92
Gustatory receptors will detect ______ .
A
SmellB
lightC
TouchD
TasteClick an option to check your answer
Q. 93
Which of the following is a plant hormone?
A
InsulinB
OestrogenC
ThyroxineD
CytokininClick an option to check your answer
Q. 94
Why is it beneficial for a chemical signal to reach all cells of the body?
A
To provide widespread changes in preparation for activityB
To prevent cell communicationC
To limit cell responseD
To slow down cell activityClick an option to check your answer
Q. 95
The endocrine organ present in human female but not in human male is
A
ThymusB
Pituitary glandC
OvaryD
TestisClick an option to check your answer
Q. 96
Gustatory receptors will detect ______ .
A
SmellB
lightC
TouchD
TasteClick an option to check your answer
Q. 97
What advantage does a chemical signal like adrenaline provide over electrical impulses?
A
It slows down bodily functionsB
It limits tissue responseC
It provides wide-ranging changes to all cellsD
It reduces the effectiveness of nerve cellsClick an option to check your answer
Q. 98
Which one of the following pairs of brain part
and its functions is not correctly matched?
A
Medulla Oblongata - Involuntary activitiesB
Pons - ConsciousnessC
Cerebrum - Memory and intelligenceD
Cerebellum - Balance and postureClick an option to check your answer
Q. 99
What are the main physiological processes influenced by plant hormones?
A
Flowering, seed production, and photosynthesisB
Root absorption, stem elongation, and leaf senescenceC
Growth, differentiation, and developmentD
Pest resistance, water uptake, and nutrient transportClick an option to check your answer
Q. 100
Which of the following is a plant hormone?
A
ThyroxinB
CytokininC
InsulinD
OestrogenClick an option to check your answer
Q. 101
Hypothalamus is a part of:
A
Mid brainB
MedullaC
Fore brainD
Hind brainClick an option to check your answer
Q. 102
Rhythms of sleep in our body are controlled by:
A
Thymus glandB
ACTHC
Pineal glandD
ADHClick an option to check your answer
Q. 103
How does adrenaline impact bodily responses during emergencies?
A
It slows down responsesB
It speeds up responsesC
It has no effect on responsesD
It stops responses altogetherClick an option to check your answer
Q. 104
The faulty functioning of an endocrine gland can make a person very short or very tall. This gland is :
A
adrenalB
thyroidC
pituitaryD
pinealClick an option to check your answer
Q. 105
Why is the brain still considered incomprehensible?
A
Lack of interest in brain researchB
Limited technologyC
Difficulty in understanding its functionsD
Lack of fundingClick an option to check your answer
Q. 106
How do plants respond to stimuli like touch?
A
By growing in a particular directionB
By hiding undergroundC
By standing stillD
By flying awayClick an option to check your answer
Q. 107
Which of the following is not strictly considered
as a part of the neuron?
A
nissl bodiesB
myelin sheathC
dendritesD
axonClick an option to check your answer
Q. 108
What causes a tendril to circle around an object it touches?
A
Increased growth on the contact sideB
Decreased growth on the contact sideC
Lack of sensitivityD
Random movementClick an option to check your answer
Q. 109
In neuron, conversion of electrical signal to a chemical signal occurs at
A
dendritic endB
axonC
axonal endD
cell-bodyClick an option to check your answer
Q. 110
____________ is a growth inhibiter hormone in plants.
A
CytokininB
Abscicic acidC
AuxinD
Gibberellic acidClick an option to check your answer
Q. 111
What is the source of adrenaline in the body?
A
BrainB
HeartC
Adrenal glandsD
KidneysClick an option to check your answer
Q. 112
The direction of impulse in a typical neuron is
A
Axon to dendronB
Dendron to axonC
Both a and b are wrongD
Both a and b are correctClick an option to check your answer
Q. 113
While touching a hot plate, a reflex action is seen
what is the effector in it?
A
spinal cordB
brainC
skinD
musclesClick an option to check your answer
Q. 114
What are tendrils?
A
Root systemsB
Sensory organsC
Leafy structuresD
Climbing structuresClick an option to check your answer
Q. 115
The plant hormone essential for cell division is
A
gibberellinB
abscisic acidC
auxinD
cytokininClick an option to check your answer
Q. 116
Nerves throughout the body other than Brain and spinal cord form ___.
A
AASB
CNSC
PNSD
ANSClick an option to check your answer
Q. 117
Which group of fruits do plant hormones primarily regulate in terms of development and ripening?
A
Citrus fruitsB
Stone fruits (e.g., peaches, plums)C
Berries (e.g., strawberries, blueberries)D
All types of fruits equallyClick an option to check your answer
Q. 118
People living in coastal areas suffer less from goiter. This is because
A
They drink sea waterB
They bathe in sea waterC
All of the aboveD
They eat sea foodClick an option to check your answer
Q. 119
The seat of intelligence and voluntary action in the brain is the
A
ponsB
cerebellumC
medulla oblongataD
cerebrumClick an option to check your answer
Q. 120
Olfactory reception is related to sense of:
A
none of theseB
smellingC
tastingD
visionClick an option to check your answer
Q. 121
Why is the use of adrenaline important for animals, including humans?
A
It enables rapid, widespread changes in the bodyB
It decreases the effectiveness of nerve cellsC
It provides a more controlled response to stimuliD
It limits the range of tissues respondingClick an option to check your answer
Q. 122
The fluid that lies above and below the meninges of the brain is called
A
plasmaB
cerebrospinal fluidC
serumD
lymphClick an option to check your answer
Q. 123
How have researchers progressed in understanding the brain?
A
They have unlocked all its secretsB
They have focused only on understanding the brain's structureC
They have gained insights into healthy functioning and disease causesD
They have prioritized studying unrelated topicsClick an option to check your answer
Q. 124
Receptor for stimulus are present in:
A
stomachB
sense organsC
responseD
hot objectsClick an option to check your answer
Q. 125
Involuntary actions including blood pressure, salivation and vomiting are controlled by the __________ in the hind-brain.
A
CerebellumB
CerebrumC
MedalsD
MedullaClick an option to check your answer
Q. 126
What happens to a tendril when it comes in contact with a support?
A
It stops growingB
It grows fasterC
It becomes weakerD
It changes colorClick an option to check your answer
Q. 127
People living in coastal areas suffer less from goiter. This is because
A
They bathe in sea waterB
All of the aboveC
They drink sea waterD
They eat sea foodClick an option to check your answer
Q. 128
Select the mismatched pair.
A
Thyroxine: Thyroid glandB
Adrenaline: Pituitary glandC
Testosterone : TestesD
Estrogen: OvaryClick an option to check your answer
Q. 129
A potted plant kept in a room tends to bend towards the direction of light. This movement is called
A
PhotoperiodismB
PhotographismC
PhototropismD
PhotonastismClick an option to check your answer
Q. 130
In a neuron, the conversion of electrical signal to a chemical signal occurs at/in :
A
myelin sheathB
axon endC
cell bodyD
dendrite endClick an option to check your answer
Q. 131
Which among them is not a voluntary action of
body?
A
TalkingB
BreathingC
WritingD
WalkingClick an option to check your answer
Q. 132
The part of brain which takes part in regulating respiration in the human body is :
A
cerebrumB
medullaC
cerebellumD
ponsClick an option to check your answer
Q. 133
The endocrine gland whose malfunctioning causes diabetes disease is :
A
pinealB
pancreasC
parathyroidD
pituitaryClick an option to check your answer
Q. 134
People suffering from diabetes mellitus are unable to secrete sufficient
A
testosteroneB
insulinC
adrenalineD
thyroxineClick an option to check your answer
Q. 135
How would relying only on electrical impulses affect tissue response in squirrels?
A
Tissues would prepare for activity more efficientlyB
Tissues would not respond effectivelyC
Tissues would become overactiveD
Tissues would not respond at allClick an option to check your answer
Q. 136
Why might relying solely on electrical impulses via nerve cells limit tissue response?
A
Because nerve cells are slowB
Because nerve cells only reach certain tissuesC
Because nerve cells cannot carry chemical signalsD
Because nerve cells are not effectiveClick an option to check your answer
Q. 137
Input and output nerves meet at
A
CNSB
musclesC
heartD
liverClick an option to check your answer
Q. 138
A connection between nerves which detect heat / light etc and nerves that moves muscles is called
A
reflex actionB
neuromuscular junctionC
human brainD
reflex arcClick an option to check your answer
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