Chapter 17
Coordination And Control
Encircle the most appropriate answer among the following options
1. The name of metabolic processes are interwoven by choose which one is correct:
- In coordination
- Subordination
- Coordination
- All (A), (B) and (C)
2. A cell or group of cells specialized to detect changes in the environment and trigger impulses are know as choose which one is correct:
- Effectors
- Receptors
- Suppressors
- (B) and (C)
3. The term Auxin was coined by choose which one is correct:
- T-yabuta 1970
- F.W. Went 1926
- Walter 1928
- Hoshimata 1910
4. You duck your head when a baseball is thrown toward your face. You are responding to choose which one is correct:
- An internal stimulus
- An external stimulus
- Hormones
- All of these
5. A plant reponse to touch is called choose which one is correct:
- Photoperiodism
- Geotropism
- Thigmotropism
- Phototropism
6. The biological clock is time measuring system which is independent and is choose which one is correct:
- Endogenous
- Exogenous
- Both (A) and (B)
- None of these
7. If bio-rhythm occurs with a frequency of 24 hours, it is called choose which one is correct:
- Cireadian rhythm
- Cirea-annual rhythm
- Lunar rhythm
- All of the choices are correct
8. Photosynthesis and luminescence in algae and dinoflagelltes, CO2 metabolism in Bryophyulm are choose which one is correct:
- Dependent on light and temperature
- Exogenous in origin
- Independent of light and temperature
- All of the choices are correct
9. The influence of daily cycle of light and darkness on the physiology and behaviour of an organism is known as choose which one is correct:
- Mechanical rhythm
- Chemoperiodism
- Photoperiodism
- Thigmotropism
10. The synthesis and release of abscisic acid in a plant is response to choose which one is correct:
- Water deficit
- Oxygen deprivation
- Salt stress
- Herbivory
11. Cireadian rhythms are based on approximately a choose which one is correct:
- 2-hour period
- 7-day period
- 24-hour period
- 365-day period
12. The production of fructants by plants is response to choose which one is correct:
- Water deficit
- Salt stress
- Cold stress
- Heat stress
13. The formation of air tubes in submerged roots is an adaptation to choose which one is correct:
- Water stress
- Oxygen deprivation
- Salt stress
- Herbivory
14. Which of the followings describes a plant response to heat stress?
- Production of heat shock proteins
- Closing of stomata
- Production of abscisic acid
- Production of fructants
15. The first line of defense against pathogen is choose which one is correct:
- Gene for gene-recognition
- Production of oligosaccharides
- Production of phytoalexins
- Physical barrier of epidermis
16. Auxin causes choose which one is correct:
- Promotion of apical dominance
- Formation of adventitious roots
- Growth of fruit
- All of the choices are correct
17. In combination with auxin,it stimulates cell division in plants and determines the course of differentiation choose which one is correct:
- Ethylene
- Gibberellins
- Abscisic acid
- Cytokinin
18. Foolish seedling disease in rice is caused by choose which one is correct:
- Ethylene
- Gibberellins
- Abscisic acid
- Cytokinin
19. One of the most important uses of auxin is the choose which one is correct:
- Initiation of abscission
- Stimulation of abscission
- Prevention of abscission
- Acceleration of abscission
20. Abscisic acid choose which one is correct:
- Induces bud dormancy
- Causes the stomata to close
- Promotes senescence
- All of the choices are correct
21. Which of the following is weedicide hormone choose which one is correct:
- Auxin
- Gibberellin
- Abscisic acid
- Ethylene
22. Gibberellic acid was discovered by choose which one is correct:
- Hoshimata and Rappaport
- Donoho and Walker
- Yabuta and Hayashi
- Litrochet and Dolk
23. Plants may be made to grow taller by applying the chemical choose which one is correct:
- Dichlorophenoxy acetic acid
- Trichlorophenoxy acetic acid
- Gibbereellic acid
- Phosphon
24. IAA, NAA, and GA are choose which one is correct:
- International seed companies
- Plant pheromones
- Spray adjuvants
- Plant hormones
25. Ethene choose which one is correct:
- Triggers ripening of fruit
- Promotes leaf abscission
- Initiates flowering
- All of the choices are correct
26. The hormone responsible for delay of senescence is choose which one is correct:
- Ethene
- Gibberellin
- Abscisic acid
- Cytokinin
27. The naturally occurring cytokinin is choose which one is correct:
- Zeatin
- Kinetin
- Nepthalene acetic acid
- Indole butyric acid
28. Gibberellin choose which one is correct:
- Stimulate flowering
- Promote bud sprouting
- Stimulate growth of pollen tube
- All choices are correct
29. Abscisic acid choose which one is correct:
- Is growth inhibitor
- Produced during adverse conditions
- Induces seed dormancy
- All of the choices are correct
30. Which of the following is NOT function of auxin?
- Induces parthenocarpy
- Promote apical sominance
- Promote abscission
- All of the choices are correct
31. Neurons which make up the nervous system,consist of choose which one is correct:
- An axon
- 2 or more dendrites
- A cell body containing a nucleus
- All (A), (B) and (C)
32. Who send information from the sense organs to the C.N.S?
- Sensory neurons
- Motor neurons
- Interneurons
- Neuroglia
33. Who send information from the C.N.S. to the effectors?
- Sensory neurons
- Motor neurons
- Interneurons
- Neuroglia
34. Who connect different neurons together, send information between neurons. Through short dendrites and short axons?
- Sensory neurons
- Motor neurons
- Interneurons
- Neuroglia
35. Chemically, cortisone is choose which one is correct:
- A protein
- A poly peptide
- An amino acid
- A steroid
36. Which of the following is not a function of sympathetic system?
- Dilates the branches
- Accelerates the heart beat
- Inhibits the digestive tract
- Contracts the pupils
37. The very small gap between an axon sending a message and dendrite receiving the message is the choose which one is correct:
- Axon terminal
- Receptor
- Synapse
- Effector
38. Which part of neuron carries the signals away from the soma?
- Axon
- Dendrite
- Transmitter
- Synapse
39. The neurons of CNS that form myelin sheath, provide nutrition and are involved in phagocytic activity are know as choose which one is correct:
- Sensory neurons
- Motor neurons
- Interneurons
- Neuroglia
40. It is an automatic neuromuscular action elicited by a defined stimulus choose which one is correct:
- Voluntary action
- Reflex action
- Motor action
- All of the choices are correct
41. A reflex action involving one or more interneurons between sensory and motor neuron is termed as choose which one is correct:
- Monosynaptic reflex
- Polysynaptic reflex
- Hemisynaptic reflex
- None of these
42. Which of the ions are most abundant on the inside and outside of the neuron at its resting potential?
- Potassium; sodium
- Sodium; potassium
- Calcium; phosphate
- Sulphate; potassium
43. When a neuron reaches at action potential, it depolarizes in choose which one is correct:
- Second
- Millisecond
- Microsecond
- Nanosecond
44. Nerve impulses always travel to the brain through ⎯⎯⎯⎯⎯ fibers.
- Interneuron fibers
- Dendrite fibers
- Axon fibers
- Motor fibers
45. Which of these is true when a neuron is at rest?
- The outside is positive
- The outside is negative
- There is no voltage
- The inside is positive
46. The typical neuronal resting membrane potential measures between choose which one is correct:
- −40 mv to –80 mv
- −30 mv to –80 mv
- −40 mv to –90 mv
- −40 mv to –70 mv
47. Influx of which ion causes depolarization of the membrane, as the first phase of the action potential?
- K+
- Na+
- K+and Na+
- Ca+
48. Diffused nervous system is present in which animal?
- Asymmetrical
- Bilaterally symmetrical
- Radially symmetrical
- All (A), (B) and (C)
49. Central nervous system is present in which animal?
- Asymmetrical
- Bilaterally symmetrical
- Radially symmetrical
- All (A), (B) and (C)
50. How many interneurons does the CNS contain approximately?
- 1 trillion
- 100 trillion
- 1 million
- 100 billion
51. The brain stem is composed of choose which one is correct:
- The spinal cord, axon, vertebra
- The cerebrum, cerebellum, pons
- The medulla, pons, mid brain
- The thalamus, mid brain, pons
52. Nerve cells can send messages faster if they have choose which one is correct:
- Many chromosomes
- Non-myelinated axons
- May dendrites
- Myelinated axon
53. Which part of the brain is the seat of conscious activities?
- Limbic brain
- Brain stem
- Cerebral cortex
- Occipital
54. A large number of bundle fibers that connect the left and right cerebral hemispheres is choose which one is correct:
- Lateral sulcus
- Broca’s area
- Corpus callosum
- Ventral sulcus
55. The diencephalon consists of choose which one is correct:
- Thalamus and hypothalamus
- Pons and medulla
- Hypothalamus and limbic system
- Thalamus and limbic system
56. When your finger accidentally gets caught in a door, the pain message is sent to your brain through choose which one is correct:
- Medulla oblongata
- Motor nerve
- Sensory receptors
- Caffeine
57. Which of these is the large part of your brain?
- The cerebellum
- The cerebrum
- The medulla
- The pons
58. The division of the peripheral nervous system that regulates your heart beat is choose which one is correct:
- The somatic system
- The muscular system
- The autonomic system
- The skeletal system
59. The material in the brain and spinal cord which contains the axons and myelin sheathes of nerve cells is choose which one is correct:
- White matter
- Gary matter
- Yellow matter
- None of these
60. The material in the brain and spinal cord which contains the cell bodies and dendrite of nerve cells is?
- Gray matter
- White matter
- Brown matter
- Yellow matter
61. In which portion of the spinal cord do the interneurons lie?
- Cervical enlargement
- Lumbar enlargement
- Gray matter
- White matter
62. The embryonic hindbrain gives rise to which structures in the brain?
- Cerebrum and basal ganglia
- Diencephalon
- Midbrain
- Cerebellum, pons and medulla oblongata
63. Which portion of the brain maintains homeostasis by linking activities of the endocrine and nervous system together?
- Thalamus
- Hypotalamus
- Pons
- Medulla oblongata
64. Which of these nuclei is not located entirely within the medulla oblongata?
- Cardiac center
- Respiratory center
- Vasomotor center
- Reticular formation
65. Which structures would not be innervated by the sympathetic nervous system?
- Skeletal muscles
- Glands
- Smooth muscles
- Cardiac muscles
66. Which term should be last in the reflex sequence?
- Sensory neuron
- Motor neuron
- Effector
- Receptor
67. Parkinson disease tremors are the result of which condition?
- Dopamine excess
- Norepinephrine deficiency
- Epinephrine excess
- Dopamine deficiency
68. The centers for thermoregulation, osmoregulation, are located in choose which one is correct:
- Thalamus
- Hypothalamus
- Amygdala
- Hippocampus
69. Which brain area acts to screen all incoming sensory data?
- Thalamus
- Hypothalamus
- Cerebral cortex
- Cerebellum
70. Which brain area coordinates skeletal muscle movements?
- Thalamus
- Hypothalamus
- Amygdala
- Cerbellum
71. It is involved in sleeping and wakening choose which one is correct:
- Thalamus
- Brain stem
- Hippocampus
- Cerebellum
72. Peripheral nervous system in man consists of choose which one is correct:
- 31 spinal and 12 cranial nerve pairs
- 33 spinal and 12 cranial nerve pairs
- 12 spinal and 31 cranial nerve pairs
- 31 spinal and 31 cranial nerve pairs
73. They detect sound, motion, position in relation to gravity, touch, pressure choose which one is correct:
- Chemoreceptors
- Photoreeptors
- Mechanoreceptors
- Nociceptors
74. What kind of nociceptors are the skin receptors?
- Free nerve ending
- Spray nerve endings
- Blind nerve ending
- Encapsulated nerve ending
75. What kind of meissner corpuscle and pacinian corpuscle are the skin receptors?
- Free nerve ending
- Hot
- Cold
- Encapsulated nerve ending
76. The receptors which note the changes in blood pressure are choose which one is correct:
- Caloreceptors
- Frigdoreceptors
- Baroreceptors
- Nociceptors
77. Dorsal root of spinal cord is choose which one is correct:
- Sensory
- Motor
- Mixed
- All (A), (B) and (C)
78. The branch of the autonomic nervous system that induces the “flight or fight” response is the choose which one is correct:
- Sympathetic
- Parasympathetic
- Vagus nerve
- Somatic nerve
79. Nicotine choose which one is correct:
- Reduces fatigue
- Raises blood pressure
- Increases alertness
- All of the choices are correct
80. Parkinson’s disease is characterized by choose which one is correct:
- Nicotin
- Acetylcholine
- Serotonin
- Dopamine
81. Alzheimer disease (AD), is a progressive, degenerative brain disease. Its symptoms include choose which one is correct:
- Dementia
- Hallucination
- Delusions
- All (A), (B) and (C)
82. Endocrine glands typically choose which one is correct:
- Are ductless
- Release enzymes
- Release neurotransmitters
- Release their contents out of the body
83. Islets of Langerhans are found in the choose which one is correct:
- Thyroid
- Thymus
- Panereas
- Pituitary
84. Cortisol is released from the choose which one is correct:
- Parathyroid
- Adrenal cortex
- Hypothalamus
- Posterior pituitary
85. Calcium is released from bone into the bloodstream due to the action of choose which one is correct:
- ADH
- GnRH
- LH
- PTH
86. Aldosterone is produced by which gland that causes reabsorption choose which one is correct:
- Thyroik; sodium
- Pituitary; water
- Adrenal; sodium
- Thymus; white blood cells
87. Blood calcium is lowered by the hormone choose which one is correct:
- Calcitonin
- Glucagon
- Adrenalin
- Thyroxine
88. An oversecretion of GH (or STH) would lead to choose which one is correct:
- Goiter
- Diabetes
- Infertility
- Gigantism
89. Which pair of hormones act antagonistically?
- Glucagon and Cortisol
- Insulin and Adrenalin
- Glucagon and insulin
- Glucagon and Adrenalin
90. This hormone would be at an increased level in a mother who is breast feeding choose which one is correct:
- Thyroxine
- Prolactin
- Aldosterone
- Insulin
91. Compared to neurotransmitters, hormones act choose which one is correct:
- Faster
- On fewer cells
- For a shorter period of time
- Over longer distances
92. Hormones are made from choose which one is correct:
- Amino acids
- Modified amino acids
- Steroid
- All of the choices are correct
93. As the sun comes up in the morning your blood level of what goes down and you wake up.
- Melatonin
- Cortisol
- Glucagon
- Adrenalin
94. Which hormone is most commonly associated with the “fight or flight” response to stress?
- Insulin
- Adrenalin
- Calcitonin
- Prolactin
95. These two hormones are produced by the hypothalamus but stored in the posterior pituitary choose which one is correct:
- Insulin and glucagon
- ADH and oxytocin
- Growth hormone and prolactin
- Thymosin and adrenalin
96. This hormone from the hypothalamus stimulates release of ACTH from the anterior pituitary choose which one is correct:
- STHRRH
- TRH
- CRH
- ACTH
97. Thyroxin (or thyroid hormone) travels through the bloodstream acting on many target cells to increase choose which one is correct:
- Blood sugar
- Blood calcium
- Metabolism
- Anti-inflammatory reactions
98. The major target for ACTH is the choose which one is correct:
- Pancreas
- Thyroid
- Liver
- Adrenal
99. Too much ACTH release causes hyperglycemia (high blood sugar) could also cause choose which one is correct:
- Increased blood pressure
- Increased blood calcium
- Decreased body temperature
- Decreased metabolism
100. A patient suffering from dwarfism is most likely deficient in choose which one is correct:
- ADH
- PTH
- STH
- GnRH
101. A patient that is losing weight and suffering from an increased body temperature could be hypersecreting choose which one is correct:
- Thyroxin
- PTH
- STH
- GnRH
102. Hormones that enter target cells and bind to receptors in the cytoplasm and then enter the nucleus are called choose which one is correct:
- Steroid hormones
- Water soluble hormones
- Peptide hormones
- Second messengers
103. All of the following are hormones of the anterior pituitary except choose which one is correct:
- Human growth hormone (GH)
- Follicle-stimulating hormone (FSH)
- Parathyroid hormone (PTH)
- Thyroid-stimulating hormone (TSH)
104. The gland which can be classified as an endocrine and an exocrine gland is the choose which one is correct:
- Thyroid
- Thymus
- Pancreas
- Pituitary
105. Excess level of cortisol results in choose which one is correct:
- Addison disease
- Cretinism
- Cushing syndrome
- Diabetes insipidus
106. Hormone responsible for differentiation of Tlymphocytes is choose which one is correct:
- Cortisol
- Melatonin
- Thyroxin
- Thymosin
107. A 30 years old male complains of being over weight, sluggish in nature, hair loss, dry skin and intolerance of cold, he is suffering from choose which one is correct:
- Cretinism
- Myxedema
- Addison disease
- Huntington disease
108. The study of the natural history of animal behavior is choose which one is correct:
- Etiology
- Psychology
- Ethology
- Parapsychology
109. Learning to not responding to a stimulus is called choose which one is correct:
- Imprinting
- Sensitization
- Kinesis
- Habituation
110. A “skinner box” is used for experiments in choose which one is correct:
- Operant conditioning
- Classical conditioning
- Migration
- Aggression
111. A sensitive phase and critical period are associated with what type of behavior choose which one is correct:
- Kinesis
- Taxis
- Imprinting
- Habituation
112. Dog salivating at the ringing of a bell is associated with what type of behavior choose which one is correct:
- Classical conditioning
- Operant conditioning
- Imprinting
- Habityation
113. Humans ignoring night sounds while asleep is an example of choose which one is correct:
- Classical conditioning
- Operant conditioning
- Imprinting
- Habituation
114. A rat in a box learns to associate pressing a lever with obtaining food choose which one is correct:
- Operant conditioning
- Classical conditioning
- Imprinting
- Aggression
115. An example of learned behaviorus choose which one is correct:
- Operant conditioning
- Classical conditioning
- Latent learning
- All (A), (B) and (C)
116. The term imprinting was coined by choose which one is correct:
- Konard Lorenz
- Ernest Haeckel
- Schwarz
- T. H. Morgan
117. Fixed action pattern (FAP) is stereotype behavior that is triggered by an external sensory stimulus as choose which one is correct:
- Response chain
- Endogenous releaser
- Sign stimulus
- All (A), (B) and (C)
118. Increased response to an increase in stimulus intensity is called choose which one is correct:
- Positive phototaxis
- Kinesis
- Negative phototaxis
- Luminis
119. The animals which are active at dusk or dawn are termed as choose which one is correct:
- Nocturnal
- Diurnal
- Crepuscular
- Arboreal
120. The set point of glucose blood level in your body is choose which one is correct:
- 90 mg / 100 ml
- 50 mg / 100 ml
- 30 mg / 100 ml
- 40 mg / 100 ml