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Which layer is in contact with brain tissues?
Biology Zoology Class 11th NEET UG NEET UG Preparation
Q. 17 of Quiz-1419 (Que-ID : 2810)
Which layer is in contact with brain tissues?
- Piamater
- Arachnoid
- Duramater
- Piamater and Arachnoid
Ans → (a)Piamater
Explanation → Brain is covered by cranial meninges.1) Duramater (outer)2) Arachnoid (middle)3) Piamater (inner)- in contact with brain tissues)
This question is taken from this post → Neural control and coordination - Class 11th (Biology) Practice test | NEET MCQs - attemp/practice
More MCQs in - Neural control and coordination - Class 11th (Biology) Practice test | NEET MCQs
Q. 1 of Quiz-1419 (Que-ID : 2794)
Which one of the followings is the function of parasympathetic nervous system?
- Stimulates oil and sweat glands in the skin
- Pupil constriction
- Acceleration of heart beat
- Contraction of hair muscles
Q. 2 of Quiz-1419 (Que-ID : 2795)
During resting state, fluid outside axon contains
- low concentration of K+
- low concentration of Na+
- low concentration of Cl–
- high concentration of Cl–
Q. 3 of Quiz-1419 (Que-ID : 2796)
The basic cyclic pattern of inspiration and expiration are established by a respiratory center within the ______.
- Cerebellum
- Medulla oblongata
- Cerebral cortex
- Thalamus
Q. 4 of Quiz-1419 (Que-ID : 2797)
The cutaneous plexus and the papillary plexus consist of
- Specialized cells for cutaneous sensations
- A network of arteries to provide dermal supply
- A network of nerves to provide dermal sensation
- Gland cells that release cutaneous secretions
Q. 5 of Quiz-1419 (Que-ID : 2798)
The generation of excitation-contraction coupling involves all the following events except
- Generation of end-plate potential
- Release of calcium from troponin
- Formation of cross-linkages between actin and myosin
- Hydrolysis of ATP to ADP
Q. 6 of Quiz-1419 (Que-ID : 2799)
Which portion of the brain is responsible for various emotions such as pleasure, fear, and happiness?
- Thalamus
- Reticular formation
- Hypothalamus
- Limbic system
Q. 7 of Quiz-1419 (Que-ID : 2800)
Vestibular apparatus is made up of three semi circular canals. These canals lies at ____ degree angle to each other.
- 30
- 45
- 60
- 90
Q. 8 of Quiz-1419 (Que-ID : 2801)
At a neuromuscular junction, synaptic vesicles discharge ______.
- Acetylcholine
- Epinephrine
- Adrenaline
- None of these
Q. 9 of Quiz-1419 (Que-ID : 2802)
There are ______ pairs of cranial nerves arising from the brain.
- 8
- 12
- 18
- 25
Q. 10 of Quiz-1419 (Que-ID : 2803)
When a neuron is in resting state i.e. not conducting any impulse, the axonal membrane is
- Comparatively more permeable to K+ ions and nearly impermeable to Na+ ions
- Comparatively more permeable to Na+ ions and nearly impermeable to K+ ions
- Equally permeable to both Na+ and K+ ions
- Impermeable to both Na+ and K+ ions
Q. 11 of Quiz-1419 (Que-ID : 2804)
Which one of the following is the correct statement regarding the particular psychotropic drug specified?
- Barbiturates cause relaxation and temporary euphoria
- Hashish causes after thought perceptions and hallucinations
- Opium stimulates nervous system and causes hallucinations
- Morphine leads to delusions and disturbed emotions
Q. 12 of Quiz-1419 (Que-ID : 2805)
The function of vagus nerve innervating the heart is to
- Initiate the heart beat
- Reduce the heart beat
- Accelerate the heart beat
- Maintain constant heart beat
Q. 13 of Quiz-1419 (Que-ID : 2806)
Which of the following nerves is the largest of all the cranial nerves?
- Abducens nerve
- Oculomotor nerve
- Olfactory nerve
- Trigeminal nerve
Q. 14 of Quiz-1419 (Que-ID : 2807)
Which of the following is not related to the autonomic nervous system?
- Peristalsis
- Digestion
- Excretion
- Memory and learning
Q. 15 of Quiz-1419 (Que-ID : 2808)
Functions of smooth muscles, cardiac muscles, organs, and glands are regulated by ______ system.
- Parasympathetic
- Sympathetic
- Central nervous
- Autonomic
Q. 16 of Quiz-1419 (Que-ID : 2809)
Which neuroglia cells produce a fatty insulating material called myelin?
- Satellite cells
- Schwann cells
- Both (A) and (B)
- Neither (A) nor (B)
Q. 17 of Quiz-1419 (Que-ID : 2810)
Which layer is in contact with brain tissues?
- Piamater
- Arachnoid
- Duramater
- Piamater and Arachnoid
Q. 18 of Quiz-1419 (Que-ID : 2811)
The thin and convoluted outer layer of gray matter that covers the cerebral hemispheres is
- Medulla oblongata
- Thalamus
- Cerebral cortex
- Meninges
Q. 19 of Quiz-1419 (Que-ID : 2812)
Find the odd one.
- Schwann cells
- Nissl s granules
- nephrons
- synaptic knob
Q. 20 of Quiz-1419 (Que-ID : 2813)
Select the correct statement from the ones given below
- Cocaine is given to patients after surgery as it stimulates recovery
- Barbiturates when given to criminals make them tell the truth
- Morphine is often given to persons who have undergone surgery as a pain killer
- Chewing tobacco lowers blood pressure and heart rate
Q. 21 of Quiz-1419 (Que-ID : 2814)
cyton has
- Single nucleus
- Double nucleus
- Three nucleus
- None of these
Q. 22 of Quiz-1419 (Que-ID : 2815)
Neurons are excitable cells because the membrane is
- Non polar
- Apolar
- polar
- None of these
Q. 23 of Quiz-1419 (Que-ID : 2816)
In Na-K pump how much ions of Na are transported outwards
- 2
- 3
- 6
- 5
Q. 24 of Quiz-1419 (Que-ID : 2817)
Which among is faster impulse transmission
- Chemical
- Both
- Electrical
- None of these
Q. 25 of Quiz-1419 (Que-ID : 2818)
Which is not part of brain stem
- Pons
- Medulla
- Mid brain
- Cerebellum
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The largest petal overlaps the lateral ones in _________ aestivation.
- Papilionaceous
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Which among the following has 2 chamber heart
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Q. 9 of Quiz- (Que-ID : 3227)
Thors and spines are
- homologous organs
- analogous organs
- thron is homologous while spine is analogous
- spine is homologous while is analogous
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An evolutionary characteristic is found in selaginella:
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- Heterophilly habits
- Sporangia present in cone
- Heterospory
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The major event that occurs during the anaphase of mitosis, which brings about the equal distribution of chromosomes, is
- splitting of the centromeres
- splitting of the chromatids
- replication of the genetic material
- condensation of the chromatin
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The enzyme involved in biological nitrogen fixation are
- Carboxylase
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- Dehydrogenase
- Nitrogenase
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Cu ions released from copper releasing intrauterine devices (IUDs)
- prevent ovulation
- make uterus unsuitable for implantation
- decrease phagocytosis of sperms
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In which one of the following habitats, does the diurnal temperature of soil surface view most?
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- Desert
- Grassland
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In mammals maximum energy is lost by the
- Respiration
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- Stool
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- Lemna
- Ficus
- Eichhornia
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Diatoms do not decay fast because
- They are chitinous
- They have silicious wall
- Contain saline oil
- Body is impervious to water
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Which enzyme catalyses the reaction below? Pyruvic acid → Carbon dioxide + Ethanol
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- None of these
- Both of these
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Synthesis of DNA from RNA is explained by
- central dogma reverse
- reverse transcription
- feminism
- all of these
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What is the effect of turgor pressure in Munch hypothesis?
- Increase of turgor pressure
- Decrease of turgor pressure
- No change in turgor pressure
- independent to water potential gradient
Q. 15 of Quiz- (Que-ID : 3008)
Which of the following cellular structures always disappears during mitosis and meiosis?
- Plasma membrane
- Nucleolus and nuclear envelope
- Plastids
- none of these
Q. 12 of Quiz- (Que-ID : 3430)
Which one of the following is a step of PCR?
- Denaturation
- Annealing
- Extension
- All of these
Q. 2 of Quiz- (Que-ID : 3120)
Choose the correct statement/statements. Pumps in active transport are A. Lipids that bind molecules to pass them through the membrane. B. Transport molecules uphill. C. These are specific transporters. D. These are sensitive to inhibitors
- A and C
- A, B and D
- B, C and D
- C and D
Q. 18 of Quiz- (Que-ID : 2761)
Testorone is produced by
- Leydigs cell
- Pituitary gland
- Both a and b
- Non of the above
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The main function of the skin of frog is
- the exchange of respiratory gases
- the storage of fat
- the storage of energy
- to convert light vitamin D
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Potato tuber is an underground stem because
- Tinospora
- Jussiaea
- Viscum
- Vanda
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Artabotrys is a hook climber in which the hooks are modified
- inflorescence axis
- petiole
- roots
- stipules
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- the exchange of respiratory gases
- the storage of fat
- the storage of energy
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The main function of the skin of frog is
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- the storage of fat
- the storage of energy
- to convert light vitamin D
Q. 22 of Quiz- (Que-ID : 3515)
Which group of vertebrates comprises the highest number of endangered species?
- Fishes
- Reptiles
- Birds
- Mammals
Q. 4 of Quiz- (Que-ID : 3372)
Organic farming includes
- use of fertilisers and pesticides of biological origin
- IPM (Integrated Pest Management)
- locally developed pest resistant varieties
- all of these
Q. 22 of Quiz- (Que-ID : 3040)
Growth regulator which induces parthenocarpy
- IAA
- ABA
- Cytokinin
- Ethylene
Q. 15 of Quiz- (Que-ID : 2984)
Which loop of hence is permeable to water
- Descending loop
- Ascending loop
- Both the loops
- None of the above
Q. 22 of Quiz- (Que-ID : 2715)
Scapula is present in which girdle
- Pelvic
- Pectoral
- Both a and b
- None of the above
Q. 16 of Quiz- (Que-ID : 2909)
The third stage of parturition is called “after-birth”. In this stage
- excessive bleeding occurs
- fetus is bom and cervix and vagina contraction to normal condition happens
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- placenta is expelled out
Q. 19 of Quiz- (Que-ID : 3362)
The term ‘apiculture’ refers to
- tissue culture
- pisciculture
- bee-keeping
- animal-keeping
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- the exchange of respiratory gases
- the storage of fat
- the storage of energy
- to convert light vitamin D
Q. 12 of Quiz- (Que-ID : 3405)
In an experiment, recombinant DNA bearing ampicillin-resistance gene is transferred into E.coli cells. The host cells are then cultured on a medium containing ampicillin. The result will be
- both transformants and non-transformants cannot survive
- both transformants and non-transformants can survive.
- transformants only and not the non-transformants can survive
- transformants cannot survive, but non-transformants can not.
Q. 16 of Quiz- (Que-ID : 2884)
Which of the following pairs contributes to an increase in population ?
- Natality and immigration
- Mortality and emigration
- Natality and emigration
- Mortality and immigration
Q. 20 of Quiz- (Que-ID : 2963)
Histone proteins are
- basic, negatively charged
- basic, positively charged
- acidic, positively charged
- acidic, negatively charged
Q. 3 of Quiz- (Que-ID : 2971)
Which among the following is not uricootelic
- Mammal
- Reptiles
- Birds
- Snails
Q. 8 of Quiz- (Que-ID : 2926)
A couple has six daughters. What is the possibility of their having a girl next time ?
- 10%
- 50%
- 90%
- 100%
Q. 7 of Quiz- (Que-ID : 3050)
Malacophily means
- pollination by wind
- pollination by water
- pollination by insects
- pollination by snails
Q. 5 of Quiz- (Que-ID : 2973)
Which requires min water for removal from body
- Ammonia
- Urea
- Uric acid
- None of the above
Q. 22 of Quiz- (Que-ID : 3265)
The animals with bilateral symmetry in young stage, and radial pentamerous symmetry in the adult stage, belong to the phylum
- Annelida
- Mollusca
- Cnidaria
- Echinodermata
Q. 2 of Quiz- (Que-ID : 3145)
An example of competitive inhibition of an enzyme is the inhibition of
- succinic dehydrogenase by malonic acid
- cytochrome oxidase by cyanide
- hexokinase by glucose-6-phosphate
- carbonic anhydrase by carbon dioxide
Q. 20 of Quiz- (Que-ID : 3088)
Water stress causes
- opening of stomata
- increase in metabolic rate
- wilting of leaves
- lesser availability of carbon dioxide
Q. 1 of Quiz- (Que-ID : 3294)
Which one of the following phenomena supports Darwin’s concept of natural selection in organic evolution ?
- Development of transgenic animals
- Production of “Dolly’, the sheep by cloning
- Prevalence of pesticide resistant insects
- Development of organs from ‘stem cells’ for organ transplantation.
Q. 2 of Quiz- (Que-ID : 3470)
Soil particle determine the character of
- Organisation
- Biomass
- Area capacity
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Q. 20 of Quiz- (Que-ID : 3413)
Two microbes found tb be very useful in Genetic Engineering are
- Excherichia coli and Agrobacterium tumefaciens
- Vibrio cholarae and a tailed bacteriophage
- Diplococcus sp. and Pseudomonas sp.
- Crown gall bacterium and Caenorhabdities elegans
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