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There are ______ pairs of cranial nerves arising from the brain.
Biology Zoology Class 11th NEET UG NEET UG Preparation
Q. 9 of Quiz-1419 (Que-ID : 2802)
There are ______ pairs of cranial nerves arising from the brain.
- 8
- 12
- 18
- 25
Ans → (b)12
Explanation →
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
More MCQs In - Biology Zoology Class 11th NEET UG NEET UG Preparation
Q. 16 of Quiz- (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. 1 of Quiz- (Que-ID : 2919)
A recessive allele is expressed in
- heterozygous condition only
- homozygous condition only
- F3 generation
- both homozygous and heterozygous conditions.
Q. 18 of Quiz- (Que-ID : 3161)
The minimum amount of energy required to initiate a chemical reaction is called
- enzymatic energy
- activation energy
- substrate energy
- initiation energy
Q. 12 of Quiz- (Que-ID : 3205)
Which of the following helps in the curling of the leaf surface?
- Bulliform cells
- Xylem tissue
- Palisade parenchyma
- Bundle sheath cells
Q. 21 of Quiz- (Que-ID : 3947)
Metabolic intermediates found in living system which are essential for growth and life is called___________
- Saponins
- Tannins
- Secondary metabolite
- Primary metabolites
Q. 12 of Quiz- (Que-ID : 2755)
PTH is called hypercalcemic hormone because it leads to
- Absorption of CaCo3 from digested food
- Reabsorption of water from renal tubules
- Increasing blood calcium levels
- Maintain ion balance in blood
Q. 22 of Quiz- (Que-ID : 2890)
Which one of the following groups includes sexually transmitted diseases caused by bacteria only ?
- Syphilis, gonorrhoea, chancroid
- Syphilis, chlamydiasis, chancroid
- Syphilis, gonorrhoea, scabies
- Syphilis, scabies, pediculosis
Q. 1 of Quiz- (Que-ID : 2969)
Which among the following is not ammonotelic
- Aquatic amphibian
- Aquatic insect
- Bony fishes
- Mammal
Q. 4 of Quiz- (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. 2 of Quiz- (Que-ID : 3095)
Function of zinc is
- Closing of stomata
- Biosynthesis of 3-IAA
- Synthesis of chlorophyll
- Oxidation of carbohydrate
Q. 7 of Quiz- (Que-ID : 3275)
Which of the following plants is used extensively for the study of photosynthesis?
- Amaranthus
- Asparagus
- Chlorella
- Sunflower
Q. 23 of Quiz- (Que-ID : 3091)
Structurally, chlorophyll a and b are different as
- Chl a has a methyl group and Chl b has an aldehyde group.
- Chl a has an aldehyde group and Chl b has a methyl group.
- Chl a has an ethyl group and Chl b has an aldehyde group
- Chl a has a carboxyl group and Chl b has an aldehyde group.
Q. 18 of Quiz- (Que-ID : 2861)
Plants with ovaries having only one or a few ovules are generally pollinated by
- bees
- Butterflies
- birds
- Wind
Q. 9 of Quiz- (Que-ID : 3402)
Which of the given statement is correct in the context of observing DNA separated by agarose gel electrophoresis?
- DNA can be seen in visible light
- DNA can be seen without staining in visible light
- Ethidium bromide stained DNA can be seen in visible light
- Ethidium bromide stained DNA can be seen under exposure to UV light
Q. 20 of Quiz- (Que-ID : 3338)
During the life cycle of Plasmodium, sexual reproduction takes place in which of the following hosts ?
- Human
- Female Anopheles mosquito
- Male Anopheles mosquito
- Both (a) and (b)
Q. 11 of Quiz- (Que-ID : 3379)
Enzyme which has the fibrinolytic effect is
- protease
- amylase
- lipase
- streptokinase
Q. 23 of Quiz- (Que-ID : 2716)
Acetabulum cavity is present in which girdle
- Pelvic
- Pectoral
- Both a and b
- None of the above
Q. 24 of Quiz- (Que-ID : 3217)
Which of the following provide maximum mechanical strength to a tree trunk.
- Heart wood
- Sap wood
- Cork
- Late wood
Q. 13 of Quiz- (Que-ID : 3281)
The gametophyte is not an independent, free-living generation in
- Pinus
- Polytrichum
- Adiantum
- Marchantia
Q. 6 of Quiz- (Que-ID : 3024)
Opening of floral buds into flowers, is a type of:
- Autonomic movement of variation
- Autonomic movement of locomotion
- Autonomic movement of growth
- Paratonic movement of growth
Q. 6 of Quiz- (Que-ID : 2924)
Which of the following crosses will give tall and dwarf pea plants in same proportions ?
- TT × tt
- Tt × tt
- TT × Tt
- tt × tt
Q. 25 of Quiz- (Que-ID : 3118)
Analysis of xylem sap shows
- presence of enzymes
- presence of organic matter
- presence of nutrients
- presence of mineral salts
Q. 21 of Quiz- (Que-ID : 2664)
which among the following is caused due to decreased respiratory surface area
- Astma
- Emphysema
- Sclerosis
- None of the above
Q. 14 of Quiz- (Que-ID : 3082)
Who enunciated the law of limiting factor for photosynthesis?
- Robert Emerson
- Ruben
- Blackman
- Calvin
Q. 14 of Quiz- (Que-ID : 2907)
Bartholin’s glands are situated
- on the either side of vagina in humans
- on either side of vas deferens in humans
- on either side of penis in humans
- on either side of Fallopian tube in humans
Q. 19 of Quiz- (Que-ID : 2988)
Angiotensinogen 2 is
- Vasoconstriction
- Vasodilation
- Both a and b
- None of the above
Q. 4 of Quiz- (Que-ID : 2922)
In a monohybrid cross between two heterozygous individuals, percentage of pure homozygous individuals obtained in F1 generation will be
- 25%
- 50%
- 75%
- 100%
Q. 3 of Quiz- (Que-ID : 2771)
The ozone layer is found in the
- Hydrosphere
- Stratosphere
- Lithosphere
- Troposphere
Q. 10 of Quiz- (Que-ID : 2753)
Choose the incorrect statement
- Hormones are non-nutrients chemicals
- Exocrine glands are ductless glands
- Invertebrates have simple endocrine system
- All of the above statements are incorrect
Q. 4 of Quiz- (Que-ID : 2897)
Which one of the following events is correctly matched with the time period in a normal menstrual cycle ?
- Release of egg : 5 th day
- Endometrium regenerates : 5 – 10 days
- Endometrium secretes nutrients for implantation: 11 – 18 days
- Rise in progesterone level : 1 – 15 days
Q. 21 of Quiz- (Que-ID : 2964)
The structure in chromatin seen as ‘beads-on string’ when viewed under electron microscope are called
- nucleotides
- nucleosides
- histone octamer
- nucleosomes
Q. 5 of Quiz- (Que-ID : 3398)
The DNA polymerase enzyme used in PCR is obtained from
- Thermus aquaticus
- Escherichia coli
- Agrobacterium tumefaciens
- Salmonella typhimurium
Q. 14 of Quiz- (Que-ID : 3940)
With reference to enzymes, which one of the following statements is true?
- Apoenzyme = Holoenzyme + Coenzyme
- Coenzyme = Apoenzyme + Holoenzyme
- Holoenzyme = Apoenzyme + Coenzyme
- Holoenzyme = Coenzyme ? Apoenzyme
Q. 2 of Quiz- (Que-ID : 3070)
The end product of the Calvin cycle is ______.
- RuBP
- PGAL
- PGA
- ADP + NADP
Q. 12 of Quiz- (Que-ID : 3380)
Statins used for lowering blood cholesterol level are extracted from
- algae
- bacteria
- viruses
- yeast
Q. 22 of Quiz- (Que-ID : 2740)
Genetic recombination in prokaryotes can occur during
- Transformation
- Transduction
- Conjunction
- All of the above
Q. 9 of Quiz- (Que-ID : 2802)
There are ______ pairs of cranial nerves arising from the brain.
- 8
- 12
- 18
- 25
Q. 22 of Quiz- (Que-ID : 3090)
In the half-leaf experiment of photosynthesis, KOH solution is used because
- It provides O2 to the leaf.
- It provides moisture to the leaf.
- t helps in CO2 fixation
- It absorbs CO2
Q. 16 of Quiz- (Que-ID : 3309)
Which of the following statements is True ?
- Wings to birds and insects are homologous organs.
- Human hands and bird’s wings are analogous organs
- Human hands and bat’s wings are analogous organs.
- Flipper of penguin and dolphin are analogous organs
Q. 19 of Quiz- (Que-ID : 3487)
Ecological pyramids were first devised by
- Charles Eltom
- R. Hesse
- R.A. Lindemann
- Justus von Liebig
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