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What is functional unit of contraction

Biology Class 11th NEET UG NEET UG Preparation

Q. 18 of Quiz-1402 (Que-ID : 2711)

What is functional unit of contraction

  • Cell
  • Myosin
  • Actin
  • Sarcomere

Ans → (d)Sarcomere

Explanation → Sarcomere is the portion between two successive Z lines

This question is taken from this post → Locomotion and Movements, Biology class 11th | Practice MCQs for NEET - attemp/practice


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Q. 1 of Quiz-1402 (Que-ID : 2694)

How many bones are total present in human body

  • 209
  • 203
  • 206
  • 120

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Q. 2 of Quiz-1402 (Que-ID : 2695)

How many bones are present in axial skeleton

  • 82
  • 80
  • 87
  • 85

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Q. 3 of Quiz-1402 (Que-ID : 2696)

Which among is not facial bone

  • Frontal
  • Nasal
  • Palantine
  • Maxilla

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Q. 4 of Quiz-1402 (Que-ID : 2697)

Which bone isn?t found in ear

  • Malleus
  • Incus
  • Stapes
  • Palatine

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Q. 5 of Quiz-1402 (Que-ID : 2698)

Name a single U shaped bone

  • Malleus
  • Incus
  • Hyoid
  • Palatine

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Q. 6 of Quiz-1402 (Que-ID : 2699)

What are 8,9 and 10th ribs known as

  • True ribs
  • False ribs
  • Floating ribs
  • None of the above

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Q. 7 of Quiz-1402 (Que-ID : 2700)

Name the longest bone

  • Femur
  • Humerus
  • Tibia
  • Fibula

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Q. 8 of Quiz-1402 (Que-ID : 2701)

Which among the following is auto immune disorder

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  • Arthritis
  • Myasthenia gravis
  • Gout

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Q. 9 of Quiz-1402 (Que-ID : 2702)

Name a disorder which occurs due to rapid spasm in muscles due to low ca2+ in body fluid

  • Tetany
  • Arthritis
  • Myasthenia gravis
  • Gout

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Q. 11 of Quiz-1402 (Que-ID : 2704)

Which among the following are synovial joints

  • Ball and socket joint
  • Hinge joint
  • Pivot joint
  • All of the above

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Q. 12 of Quiz-1402 (Que-ID : 2705)

Which of these contain ATP and ATPase binding site

  • Actin
  • Myosin
  • Both a and b
  • None of the above

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Q. 13 of Quiz-1402 (Que-ID : 2706)

Which among the following are involuntary muscles

  • Cardiac
  • Skeletal
  • Smooth
  • Both a and c

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Q. 14 of Quiz-1402 (Que-ID : 2707)

Which joint is present between carpal and metacarpal of thumb

  • Saddle joint
  • Pivot
  • Hinge
  • Condyloid

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Q. 15 of Quiz-1402 (Que-ID : 2708)

Which joint is present between humerus and pectoral girdle

  • Hinge
  • Ball and socket
  • Pivot joint
  • Condyloid

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Q. 16 of Quiz-1402 (Que-ID : 2709)

How many bones form lumbar vertebrae

  • 7
  • 6
  • 5
  • 8

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Q. 17 of Quiz-1402 (Que-ID : 2710)

Sarcoplasmic reticulum is store house of which ion

  • Ca2+
  • Mg2+
  • Mn2+
  • None of the above

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Q. 18 of Quiz-1402 (Que-ID : 2711)

What is functional unit of contraction

  • Cell
  • Myosin
  • Actin
  • Sarcomere

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Q. 19 of Quiz-1402 (Que-ID : 2712)

The central part of thick filament which isn?t overlapped by thin filaments is called

  • H zone
  • I band
  • A band
  • None of the above

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Q. 20 of Quiz-1402 (Que-ID : 2713)

Length of which band get reduced during contraction

  • A band
  • I band
  • Z line
  • C band

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Q. 21 of Quiz-1402 (Que-ID : 2714)

how may phalanges are present

  • 14
  • 13
  • 10
  • 6

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Q. 22 of Quiz-1402 (Que-ID : 2715)

Scapula is present in which girdle

  • Pelvic
  • Pectoral
  • Both a and b
  • None of the above

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Q. 23 of Quiz-1402 (Que-ID : 2716)

Acetabulum cavity is present in which girdle

  • Pelvic
  • Pectoral
  • Both a and b
  • None of the above

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Q. 24 of Quiz-1402 (Que-ID : 2717)

How many bones are present in cranium

  • 6
  • 5
  • 7
  • 8

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Q. 25 of Quiz-1402 (Que-ID : 2718)

Atlas is which vertebrae among the following

  • 1st
  • Last
  • 5th
  • 7th

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More MCQs In - Biology Class 11th NEET UG NEET UG Preparation

Q. 19 of Quiz- (Que-ID : 3112)

Exanthema is due to deficiency of

  • B
  • Mo
  • Mn
  • Cu

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Q. 22 of Quiz- (Que-ID : 3190)

The most abundant type of animal tissue in the complex animals is

  • Muscle tissue
  • Nervous tissue
  • Connective tissue
  • Epithelial tissue

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Q. 3 of Quiz- (Que-ID : 3021)

Cells of fibers and tracheids elongate during

  • Phase of cell division
  • Phase of cell elongation
  • Phase of cell maturation
  • Phase of cell differentiation

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Q. 8 of Quiz- (Que-ID : 2621)

Which enzyme converts polysaccharides into disaccharides

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  • Salivary amylase
  • None of the above

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Q. 18 of Quiz- (Que-ID : 3511)

First National park developed in India is

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  • Jim Corbett
  • None of these

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Q. 8 of Quiz- (Que-ID : 2751)

Glucagon hormone is secreted by

  • Thyroid gland
  • Pituitary
  • Adrenal
  • Pancreas

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Q. 12 of Quiz- (Que-ID : 3180)

Which one of the following is a scent gland of mammals?

  • Bartholin
  • Anal
  • Prostate
  • Adrenal

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Q. 9 of Quiz- (Que-ID : 3152)

Which of the following influence feedback inhibition of enzyme?

  • End product
  • External factors
  • Enzyme
  • Substrate

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Q. 9 of Quiz- (Que-ID : 3302)

Which of the following evidences does not favour the Lamarckian concept of inheritance of acquired characters ?

  • Lack of pigment in cave-dwelling animlas
  • Melanisation in peppered moth
  • Absence of limbs in snakes
  • Presence of webbed toes in aquatic birds

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Q. 9 of Quiz- (Que-ID : 3477)

Hibernation of some animals

  • Regular
  • Periodic
  • Suddenly
  • Temporary

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Q. 22 of Quiz- (Que-ID : 3490)

Which types of the following pyramid are never inverted?

  • Pyramid of energy
  • Pyramid of biomass
  • Pyramid of number
  • Pyramid of dry biomass

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Q. 18 of Quiz- (Que-ID : 2961)

How far is each base pair from the next one in DNA double helix model ?

  • 2 nm
  • 3.4 nm
  • 34 nm
  • 0.34 nm

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Q. 19 of Quiz- (Que-ID : 2712)

The central part of thick filament which isn?t overlapped by thin filaments is called

  • H zone
  • I band
  • A band
  • None of the above

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Q. 9 of Quiz- (Que-ID : 3127)

Cells shrink in _________ solution

  • isotonic
  • hypotonic
  • hypertonic
  • hypotonic and hypertonic

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Q. 13 of Quiz- (Que-ID : 2756)

Corpus leuteum secretes

  • Progesterone
  • Estrogen
  • Vasopressin
  • Glucagon

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Q. 2 of Quiz- (Que-ID : 3320)

Which one of the following disease is non – communicable ?

  • Diphtheria
  • Flu
  • Cancer
  • Malaria

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Q. 24 of Quiz- (Que-ID : 3167)

The introduction of t-DNA into plants involves

  • Altering the pH of the soil, then heat shocking the plants
  • Exposing the plants to cold for a brief period
  • Allowing the plant roots to stand in water
  • Infection of the plant by Agrobacterium tumefaciens

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Q. 6 of Quiz- (Que-ID : 2949)

Control of gene expression takes place at the level of

  • DNA-replication
  • transcription
  • translation
  • none of the above

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Q. 18 of Quiz- (Que-ID : 3036)

Mobilisation of stored food in germinating seeds is triggered by

  • auxins
  • cytokinins
  • gibberellins
  • ethylene

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Q. 5 of Quiz- (Que-ID : 2773)

which of the following shows max diversity

  • Plants
  • Animalia
  • monerans
  • protistans

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Q. 15 of Quiz- (Que-ID : 3358)

MOET stands for

  • Multiple Ovulation and Egg transfer Technology
  • Multiple Ovary and Embryo Transfer Technology
  • Multiple Ovulation Embryo Transfer Technology
  • Method of Egg Transfer Technology

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Q. 15 of Quiz- (Que-ID : 3033)

Which growth hormone accerlates the malting process in brewing industry?

  • Auxins
  • Gibberellins
  • Ethylene
  • Cytokinins

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Q. 1 of Quiz- (Que-ID : 3219)

In tamarind, the pinnate leaf is

  • bipinnate
  • tripinnate
  • paripinnate
  • imparipinnate

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Q. 2 of Quiz- (Que-ID : 3395)

In genetic engineering experiments, restriction enzymes are used for

  • viral DNA
  • bacterial DNA
  • eukaryotic DNA
  • any type of DNA.

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Q. 6 of Quiz- (Que-ID : 2649)

Inspiration occurs if the pressure within the lungs is

  • More than atm pressure
  • Less tha atm pressure
  • Equal to atm pressure
  • None of the above

Discuss View Answer

Q. 25 of Quiz- (Que-ID : 3143)

ψp denotes to

  • Water potential
  • Negative potential
  • Pressure potential
  • Solute potential

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Q. 20 of Quiz- (Que-ID : 3288)

Pinus differs from mango in having

  • Tree habit
  • Green leaves
  • Ovules not enclosed in ovary
  • Wood

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Q. 19 of Quiz- (Que-ID : 2988)

Angiotensinogen 2 is

  • Vasoconstriction
  • Vasodilation
  • Both a and b
  • None of the above

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Q. 12 of Quiz- (Que-ID : 3305)

Single step large mutation leading to speciation is also called

  • founder effect
  • saltation
  • branching descent
  • natural selection

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Q. 21 of Quiz- (Que-ID : 2839)

Clear cut vegetative, reproductive and senescent phases cannot be observed in

  • annual plants
  • perennial plants
  • biennial plants
  • ephemeral plants.

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Q. 21 of Quiz- (Que-ID : 3164)

Metabolic intermediates found in living system which are essential for growth and life is called___________

  • Saponins
  • Tannins
  • Secondary metabolite
  • Primary metabolites

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Q. 17 of Quiz- (Que-ID : 2986)

Presence of glucose in urine is known as

  • Ketonuria
  • Glycosides
  • Glycosuria
  • None of the above

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Q. 6 of Quiz- (Que-ID : 2999)

During which stage the chromosomes first become visible

  • Anaphase
  • Metaphase
  • Prophase
  • Telophase

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Q. 18 of Quiz- (Que-ID : 3361)

In livestock breeding experiments, which of the following stages is transferred to surrogate mothers ?

  • Unfertilised eggs
  • Fertilised eggs
  • 8 to 32 celled embryo
  • Frozen semen

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Q. 22 of Quiz- (Que-ID : 3215)

Living tissue in lenticel is called

  • Conjunctive tissue
  • Connective tissue
  • Complementary tissue
  • Phelloderm

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Q. 3 of Quiz- (Que-ID : 3346)

Germplasm collection is the collection of

  • germ cells
  • semens
  • plants/seeds with all the diverse alleles for all genes
  • egg cells

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Q. 4 of Quiz- (Que-ID : 2972)

Which among is the most toxic

  • Ammonia
  • Uric acid
  • Urea
  • None of the above

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Q. 15 of Quiz- (Que-ID : 3233)

The axillary buds arise

  • endogenously from the pericycle
  • exogenously from the tissues of the shoot apex
  • endogenously from the cambium tissues
  • exogenously from the innermost layers of cortex

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Q. 11 of Quiz- (Que-ID : 3104)

Oxygen scavangers present in root nodules of legumes is

  • haemoglobin
  • leg haemoglobin
  • cyano haemoglobin
  • none of these

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Q. 1 of Quiz- (Que-ID : 2869)

IUDs prevent pregnancy by

  • inhibiting physiological and morphological uterine changes required for implantation
  • increasing phagocytosis of spermatozoa within uterus
  • suppressing motility of sperms as well as their fertilising capacity
  • all of these

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Q. 7 of Quiz- (Que-ID : 2875)

In vitro fertilisation is a technique that involves transfer of which one of the following into the fallopian tube ?

  • Embryo only, upto 8 cell stage
  • Either zygote or early embryo upto 8 cell stage
  • Embro of 32 cell stage
  • Zygote only

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Q. 1 of Quiz- (Que-ID : 2644)

Which among the following does not exchange o2 with CO2 through simple diffusion

  • Earthworms
  • Earthworms
  • Sponges
  • Flatworms

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Q. 6 of Quiz- (Que-ID : 2724)

The purpose of botanical garden is to

  • Preserve tropical plants
  • Ex-situ conservation of germplasm
  • Preserve wildlife
  • Giving place for recreation

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Q. 1 of Quiz- (Que-ID : 3219)

In tamarind, the pinnate leaf is

  • bipinnate
  • tripinnate
  • paripinnate
  • imparipinnate

Discuss View Answer

Q. 19 of Quiz- (Que-ID : 3037)

Cavity formed between somatic and splanchnic mesoderm is called

  • Gastrocoele
  • Blastocoele
  • Coelom
  • Neurocoele

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