CBSE Class 10 Science Chapter 7 Control and Coordination MCQ Questions with Answers
Control and Coordination MCQs – Here is a compilation of Class 10 Science MCQs Chapter 7 Control and Coordination. Students can practice free MCQs as have been added by CBSE in the new Exam pattern. At the end of Multiple Choice Questions, the answer key has also been provided for your reference. Take Free Online MCQs Test For Class 10.
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Q1- In a synapse chemical signal is transmitted from ______.
A) from dendrite of one neuron to axonal end of other neuron
B) axon to cell body of same neuron
C) cell body to axonal end of same neuron
D) axonal end of one neuron to dendrite of another neuron
Q2- In a neuron, conversion of electric signal to chemical reaction occurs at ______.
A) cell body
B) dendritic end
C) axonal terminals
Q3- Impulse flows from ___.
A) dendrite to axon in same neuron
B) axon to dendrite
C) nodes of ranvier to axon
Also See: CBSE Class 10 English MCQs
Q4- Which statement is wrong:
A) sudden action in response to something in environment is called reflex action
B) The path through which signals are transmitted from receptor to muscle is called reflex arc
C) Motor neurons carry signal from spinal cord to effector organs
D) Sensory neurons carry impulse from effector to receptors
Q5- The growth of tendrils in pea plant is due to ____.
A) effect of gravity
B) effect of chemicals
C) rapid cell divisions in tendriller cells that are away from support
D) rapid cell division in tendriller cells in contact with the support
Q6- The shape of guard cells changes due to change in ___.
A) Protein composition of cells
B) temperature of cells
C) amount of water in cells
D) position of nucleus in cells
Q7- The substance that triggers the fall of mature leaves and fruits from plants is ____.
C) Abscisic acid
Q8- Which of the following is plant hormone ?
Q9- The movement of root away from light is:
A) Positive phototropism
B) negative phototropism
C) negative hydrotropism
D) positive hydrotropism
Q10- Cretinism results due to :
A) Excess secretion of growth hormone
B) under secretion of thyroxin
C) excess secretion of adrenaline
D) under secretion of growth hormone
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Q11- The gap between two neurons is :
Q12- The brain is responsible for —————–.
A) Balancing of body
C) Regulating heart beat
Q13- Which is not true about brain:
A) there are lobes in fore brain
B) Centres of hearing, smell, memory are located in fore brain
C) Involuntary actions are controlled by medulla in hind brain
D) Cerebellum does not control postures
Q14- Involuntary actions in the body are controlled by ___.
A) Medulla in fore brain
B) medulla in mid brain
C) medulla in hind brain
D medulla in spinal cord
Q15- Which of the following pairs of brain part and its function are not correctly
A) Pons -consciousness
B) cerebrum-memory and intelligence
C) cerebellum -balancing and posture
D) medulla -involuntary actions
Q16- In humans the life process is regulated and controlled by _______.
A) Reproductive and endocrine systems
B) Respiratory and Nervous systems
C) endocrine and digestive systems
D) nervous and endocrine system
Q17- Choose incorrect statement about insulin
A) It is produced by pancreas
B) it regulates the growth and development of body
C) it regulates blood sugar level
D) deficiency causes diabetes
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Q18- Select the mismatched pairs :
A) Adrenaline-pituitary gland
B) Testosterone -testes
C) Estrogen -ovary
D) Thyroxine -thyroid gland
Q19- Rhythm of sleep in our body is controlled by __.
A) Thymus gland
B) Pineal gland
Q20- Which of the following endocrine glands is unpaired?
Q21- When a person is suffering from cold, he can not ________.
A) Differentiate the taste of an apple from that of ice cream
B) Differentiate the smell of a perfume from that of agarbatti
C) Differentiate red light from green light
D) Differentiate a hot object from a cold object
Q22- Dramatic changes in body features are associated with puberty that are mainly
because of the secretion of _____.
A) estrogen from testes and testosterone from ovary
B) estrogen from adrenal gland and testosterone from pituitary
C) estrogen from ovary and testosterone from testes
D) estrogen from pituitary and testosterone from thyroid
Q23- Which of the following statements is correct about receptors?
A) Gustatory receptors detect taste while olfactory receptors detect smell
B) Both gustatory and olfactory receptors detect smell
C) Auditory receptors detect smell and olfactory receptors detect taste
D) Olfactory receptors detect taste and gustatory receptors smell
Q24- In a neuron, conversion of electrical signal to a chemical signal occurs in:
A) cell body
B) axonal end
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Q25- The main function of abscisic acid in plants is to _____.
A) increase length of plant
B) promotes growth of plant
C) inhibits growth of plant
D) promotes growth of stem
Q26- The growth of pollen tubes towards ovules is due toV____.
Q27- The substance that triggers the fall of mature leaves and fruits from plants is ____.
D) Abscisic acid
Q28- Which of the following is not an involuntary action?
C) heart beat
Q29- Which statement is not true about thyroxin?
A) Iron is essential for the synthesis of thyroxin
B) It regulates carbohydrates, protein and fat metabolism in the body
C) Thyroid gland requires iodine to synthesise thyroxin
D) Thyroxin is also called thyroid hormone
Q30- Dwarfism results due to _____.
A) Excess secretion of thyroxin
B) Less secretion of growth hormone
C) Less secretion of adrenaline
D) Excess secretion of growth hormone
Q31- A doctor advised a person to take an injection of insulin because——-.
A) His blood pressure was low
B) His heart was beating slowly
C) He was suffering from goitre
D) His sugar level in blood was high
Q32- The hormone which increases the fertility in males is called ______.
C) growth hormone
D) Bile juice
Q33- The nervous system is divided into the ____and the ___ ;the former consists of
and the latter consists of _____.
A) CNS, PNS, the brain and spinal cord; nerves around the body
B) CNS, PNS, the nerves around the body; the ventricles
C) ANS, PNS, the nerves around the body; the ventricles
D) ANS, CNS, the nerves around the body; the brain and spinal cord
Q34- The brain’s supporting cells are called _____.
D) Glial cells
Q35- Which is not a part of neuron ?
A) synaptic cleft
Q36- The point at which the terminal button and another neuron communicate is called
____;communication here is made possible by the release of ____.
A) Axon hillock,hormones
B) Presynaptic membrane ,neurotransmitter
C) synapse ,neurotransmitter
D) synapse , hormones
Q37- ____ covers most of the axon, it is important because it ___
A) Synovial fluid, facilitates electrical conduction of nerve cells
B) mylein, facilitates the release of neurotransmitter
C) CSF, increases conduction of impulse
D) membrane potential, increases conduction of impulse
Q38- The spaces between the covered part of neurons :
A) Nodes of Ranvier
D) synaptic cleft
Q39- Neurons communicate by sending electrical impulses called _____.
A) membrane potentials
B) action potentials
Q40- Adrenaline, noradrenaline, serotonin are called ?
C) nero actors
Q41- What is the role of schwann cells in neuron ?
A) Thermal insulation of neural axons
B) limit the speed of action potential
C) Enhance the speed of impulse
Q42- The skeletal muscles are controlled by which nervous system ?
A) somatic N.S
B) Autonomic N.S
C) glial cells
Q43- _____ consists of brain and spine.
Q44- Nerves throughout the body other than Brain and spinal cord form ___.
Q45- Groups of neurons that make hundreds of synaptic connections with each other
and work together are ______.
B) neuronal pool
C) Autonomic system
D) somatic system
Q46- ____ conducts impulse from peripheral body parts to brain .
A) sensory nerve
B) motor nerve
Q47- ____ are multipolar and conduct impulse out from spinal cord .
C) schwann cells
D) motor neuron
Q48- _____ receives the sensory impulses and conveys to proper part of brain for
Q49- Damage of cerebellum will most affect the career of :
Q50- Without ___ the two sides of brain won't work ?
A) frontal lobe
B) cerebral cortex
D) corpus callosum
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Answer Key for Class 10 Science Book Chapter 7 Control and Coordination MCQs
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