A characteristic feature of a muscle fibre is the presence of large number of parallel arranged filaments in the sarcoplasm called_____

A characteristic feature of a muscle fibre is the presence of large number of parallel arranged filaments in the sarcoplasm called_____
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A characteristic feature of a muscle fibre is the presence of large number of parallel arranged filaments in the sarcoplasm called_____
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Muscle fibre is a ____ as the sarcoplasm contains many nuclei.

Description : Muscle fibre is a ____ as the sarcoplasm contains many nuclei.

Last Answer : Muscle fibre is a ____ as the sarcoplasm contains many nuclei.

Light bands of muscle fiber consist of filaments called____whereas dark bands consist of filaments called_____

Description : Light bands of muscle fiber consist of filaments called____whereas dark bands consist of filaments called_____

Last Answer : Light bands of muscle fiber consist of filaments called____whereas dark bands consist of filaments called_____

The H-disk in the skeletal muscle fibre is due to (a) the absence of myofibrils in the central portion of Aband (b) the central gap between myosin filaments in the Aband Questions (c) the central gap between actin filaments extending through myosin filaments in the A-band (d) birefringence of myosin filaments in the central portion of A-band

Description : The H-disk in the skeletal muscle fibre is due to (a) the absence of myofibrils in the central portion of Aband (b) the central gap between myosin filaments in the Aband Questions (c) the ... myosin filaments in the A-band (d) birefringence of myosin filaments in the central portion of A-band

Last Answer : Ans:(c)

The H-zone in the skeletal muscle fibre is due to (a) the central gap between actin filaments extending through myosin filaments in the A-band (b) extension of myosin filaments in the central portion of the A-band (c) the absence of myofibrils in the central portion of A-band (d) the central gap between myosin filaments in the A-band.

Description : The H-zone in the skeletal muscle fibre is due to (a) the central gap between actin filaments extending through myosin filaments in the A-band (b) extension of myosin filaments in the central portion ... the central portion of A-band (d) the central gap between myosin filaments in the A-band.

Last Answer : (a) the central gap between actin filaments extending through myosin filaments in the A-band

In biological studies which of the following is used to refer to the oxygen-binding, iron-containing, conjugated protein complex present in the sarcoplasm of muscle cells? a) myelin b) myosin c) myoglobin d) none of these

Description : In biological studies which of the following is used to refer to the oxygen-binding, iron-containing, conjugated protein complex present in the sarcoplasm of muscle cells? a) myelin b) myosin c) myoglobin d) none of these

Last Answer : ANSWER: C -- MYOGLOBIN

Each organised skeletal muscle in our body is made of a number of ____ held together by a common collagenous connective tissue layer called_____

Description : Each organised skeletal muscle in our body is made of a number of ____ held together by a common collagenous connective tissue layer called_____

Last Answer : Each organised skeletal muscle in our body is made of a number of ____ held together by a common collagenous connective tissue layer called_____

Lagoons used for purification of polluted water (A) Are large shallow artificial lakes also known as clarification lakes, maturation ponds or oxidation ponds (B) Use micro-organisms/bacteria in presence of dissolved oxygen (C) Gives an excellent final effluent (with 3 to 4 lagoons arranged in series) having suspended solid < 1 mg/litre and BOD = 3.8 mg/litre (D) All (A), (B) & (C)

Description : Lagoons used for purification of polluted water (A) Are large shallow artificial lakes also known as clarification lakes, maturation ponds or oxidation ponds (B) Use micro-organisms/bacteria in presence of dissolved oxygen (C) Gives an ... 1 mg/litre and BOD = 3.8 mg/litre (D) All (A), (B) & (C)

Last Answer : (D) All (A), (B) & (C)

Many fungi exist as branching networks of multicellular filaments. What characteristic of these filaments helps with nutrient absorption?

Description : Many fungi exist as branching networks of multicellular filaments. What characteristic of these filaments helps with nutrient absorption?

Last Answer : large surface area

With reference to the skeletal muscle myofilaments a. actin is the major constituent of thin filaments b. myosin and tropomyosin combine to form the thick filaments c. troponin is a constituents of thin filaments d. tropomyosin prevents the interaction of actin and myosin in the resting state

Description : With reference to the skeletal muscle myofilaments a. actin is the major constituent of thin filaments b. myosin and tropomyosin combine to form the thick filaments c. troponin is a constituents of thin filaments d. tropomyosin prevents the interaction of actin and myosin in the resting state

Last Answer : actin is the major constituent of thin filaments

During muscle contraction in humans, the (a) sarcomere does not shorten (b) A band remains same (c) A, H and I bands shorten (d) actin filaments shorten.

Description : During muscle contraction in humans, the (a) sarcomere does not shorten (b) A band remains same (c) A, H and I bands shorten (d) actin filaments shorten.

Last Answer : (b) A band remains same

A characteristic feature of marasmus is (A) Severe hypoalbuminemia (B) Normal epinephrine level (C) Mild muscle wasting (D) Low insulin and high cortisol level

Description : A characteristic feature of marasmus is (A) Severe hypoalbuminemia (B) Normal epinephrine level (C) Mild muscle wasting (D) Low insulin and high cortisol level

Last Answer : Answer : D

The presence of tube feet is the characteristic feature of phylum

Description : The presence of tube feet is the characteristic feature of phylum

Last Answer : The presence of tube feet is the characteristic feature of phylum A. Annelida B. Mollusca C. Arthropoda D. Echinodermata

The unifying feature of the archaea that distinguishes them from the bacteria is A- habitats which are extreme environments with regard to acidity B- absence of a nuclear membrane temperature C- presence of a cell wall containing a characteristic outer membrane D- cytoplasmic ribosomes that are 70S

Description : The unifying feature of the archaea that distinguishes them from the bacteria is A- habitats which are extreme environments with regard to acidity B- absence of a nuclear membrane temperature ... of a cell wall containing a characteristic outer membrane D- cytoplasmic ribosomes that are 70S

Last Answer : absence of a nuclear membrane temperature

Which of the following is characteristic feature of Le Fort II fracture Options: 1) The fracture line runs through the root of the nose, lacrimal bone, floor of orbit, upper part of maxillary sinus and pterygoid plates 2) The fracture line runs above and parallel to the palate and crosses lower part of nasal septum, maxillary antra and the pterygoid plates 3) Complete separation of the facial bones from the cranial bones 4) Isolated fracture of orbital floor

Description : Which of the following is characteristic feature of Le Fort II fracture Options: 1) The fracture line runs through the root of the nose, lacrimal bone, floor of orbit, upper part of maxillary ... ) Complete separation of the facial bones from the cranial bones 4) Isolated fracture of orbital floor

Last Answer : Correct Answer: 1) The fracture line runs through the root of the nose, lacrimal bone, floor of orbit, upper part of maxillary sinus and pterygoid plates

Which one of the following is not a major characteristic feature of biodiversity hot spots? A. Large number of species B. Abundance of endemic species C. Mostly located in the tropics D. Mostly located in the polar regions

Description : Which one of the following is not a major characteristic feature of biodiversity hot spots? A. Large number of species B. Abundance of endemic species C. Mostly located in the tropics D. Mostly located in the polar regions

Last Answer : D. Mostly located in the polar regions

Which one of the following is not a major characteristic feature of biodiversity hot spots? A. Large number of species B. Abundance of endemic species C. Mostly located in the tropics D. Mostly located in the polar regions

Description : Which one of the following is not a major characteristic feature of biodiversity hot spots? A. Large number of species B. Abundance of endemic species C. Mostly located in the tropics D. Mostly located in the polar regions

Last Answer : D. Mostly located in the polar regions

Characteristic of simple epithelium is that they (a) are arranged indiscriminately (b) make a definite layer (c) continue to divide and help in organ function (d) none of the above.

Description : Characteristic of simple epithelium is that they (a) are arranged indiscriminately (b) make a definite layer (c) continue to divide and help in organ function (d) none of the above.

Last Answer : (b) make a definite layer

Each terminal bronchiole gives rise to a number of very thin, irregular walled and vascularised bag like structure called_____

Description : Each terminal bronchiole gives rise to a number of very thin, irregular walled and vascularised bag like structure called_____

Last Answer : Each terminal bronchiole gives rise to a number of very thin, irregular walled and vascularised bag like structure called_____

Each terminal bronchiole gives rise to a number of very thin, irregular walled and vascularised bag like structure called_____

Description : Each terminal bronchiole gives rise to a number of very thin, irregular walled and vascularised bag like structure called_____

Last Answer : Each terminal bronchiole gives rise to a number of very thin, irregular walled and vascularised bag like structure called_____

Pick out the wrong statement. (A) Fibrillation of fibre during paper manufacture is done to develop the strength in paper (B) Alkali consumption in digestion/cooking of bamboo is measured in terms of permanganate number (C) Bagasse fibre contains both lignin & cellulose (D) Presence of sodium sulphate in pulp makes the pulp bleachability poor

Description : Pick out the wrong statement. (A) Fibrillation of fibre during paper manufacture is done to develop the strength in paper (B) Alkali consumption in digestion/cooking of bamboo is measured in terms ... both lignin & cellulose (D) Presence of sodium sulphate in pulp makes the pulp bleachability poor

Last Answer : (D) Presence of sodium sulphate in pulp makes the pulp bleachability poor

Presence of plants arranged into well defined vertical layers depending on their height can be seen best in (a) tropical rainforest (b) grassland (c) temperate forest (d) tropical savannah.

Description : Presence of plants arranged into well defined vertical layers depending on their height can be seen best in (a) tropical rainforest (b) grassland (c) temperate forest (d) tropical savannah.

Last Answer : (a) tropical rainforest

Presence of plants arranged into well defined vertical layers depending on their height can be seen best in: (1) Tropical Rain Forest (2) Grassland (3) Temperate Forest (4) Tropical Savannah

Description : Presence of plants arranged into well defined vertical layers depending on their height can be seen best in: (1) Tropical Rain Forest (2) Grassland (3) Temperate Forest (4) Tropical Savannah

Last Answer : (1) Tropical Rain Forest

The inner surface of the membrance surrounding a muscle fibre is :-

Description : The inner surface of the membrance surrounding a muscle fibre is :-

Last Answer : The inner surface of the membrance surrounding a muscle fibre is :- A. Negatively charged B. Positively charged C ... D. A storage depot of `Ca^(++)`

During contraction and relaxation of striated muscle fibre the length of A band usually :-

Description : During contraction and relaxation of striated muscle fibre the length of A band usually :-

Last Answer : During contraction and relaxation of striated muscle fibre the length of A band usually :- A. ... . Increases C. Decreases D. Decreases too much

Store house of `Ca^(+2)` in muscle fibre is____

Description : Store house of `Ca^(+2)` in muscle fibre is____

Last Answer : Store house of `Ca^(+2)` in muscle fibre is____

Store house of `Ca^(+2)` in muscle fibre is____

Description : Store house of `Ca^(+2)` in muscle fibre is____

Last Answer : Store house of `Ca^(+2)` in muscle fibre is____

The H-zone in the skeletal muscle fibre is due to

Description : The H-zone in the skeletal muscle fibre is due to

Last Answer : The H-zone in the skeletal muscle fibre is due to A. the absence of myofibrils in the central ... filaments in the central portion of the A-band.

One of the following statements about muscular responses is not true. Choose that one (a) A muscle fibre contracts in all-or-none fashion (b) There is a slight latent period that occurs between when the stimulus arrives at the muscle and when a muscle contracts. (c) Muscles will add motor units to a contraction, increasing the overall force of contraction (d) When a person is fully at rest, none of the muscles are contracting in the body

Description : One of the following statements about muscular responses is not true. Choose that one (a) A muscle fibre contracts in all-or-none fashion (b) There is a slight latent period that occurs between when ... contraction (d) When a person is fully at rest, none of the muscles are contracting in the body

Last Answer : Ans:(d)

Stimulation of a muscle fibre by a motor neuron occurs at (a) the neuro-muscular junction (b) the transverse tubules (c) the myofibril (d) the sacroplasmic reticulum.

Description : Stimulation of a muscle fibre by a motor neuron occurs at (a) the neuro-muscular junction (b) the transverse tubules (c) the myofibril (d) the sacroplasmic reticulum.

Last Answer : (a) the neuro-muscular junction

(CBSE 2011): Aditi observed following observations while looking into a permanent slide. (i) Cells are long and cylindrical (ii) Light and dark bands are present. It could be a slide of : (a) striated muscle fibre (b) smooth muscle fibre (c) neuron (d) parenchyma cells

Description : (CBSE 2011): Aditi observed following observations while looking into a permanent slide. (i) Cells are long and cylindrical (ii) Light and dark bands are present. It could be a slide of : (a) striated muscle fibre (b) smooth muscle fibre (c) neuron (d) parenchyma cells

Last Answer : (a) striated muscle fibre

Dantrolene sodium reduces skeletal muscle tone by: A. Reducing acetylcholine release from motor nerve endings B. Suppressing spinal polysynaptic reflexes C. Inhibiting the generation of muscle action potential D. Reducing Ca2+ release from sarcoplasmic reticulum in the muscle fibre

Description : Dantrolene sodium reduces skeletal muscle tone by: A. Reducing acetylcholine release from motor nerve endings B. Suppressing spinal polysynaptic reflexes C. Inhibiting the generation of muscle action potential D. Reducing Ca2+ release from sarcoplasmic reticulum in the muscle fibre

Last Answer : D. Reducing Ca2+ release from sarcoplasmic reticulum in the muscle fibre

The site of action of d-tubocurarine is: A. Spinal internuncial neurone B. Motor nerve ending C. Muscle end-plate D. Sodium channels in the muscle fibre

Description : The site of action of d-tubocurarine is: A. Spinal internuncial neurone B. Motor nerve ending C. Muscle end-plate D. Sodium channels in the muscle fibre

Last Answer : C. Muscle end-plate

The emtabolic pathway present in the inner mitochondrial membrane through which the electron passes from one carrier to another is called_____

Description : The emtabolic pathway present in the inner mitochondrial membrane through which the electron passes from one carrier to another is called_____

Last Answer : The emtabolic pathway present in the inner mitochondrial membrane through which the electron passes from one carrier to another is called_____

Projection of cortex between medullary pyramids is called_____

Description : Projection of cortex between medullary pyramids is called_____

Last Answer : Projection of cortex between medullary pyramids is called_____

Intestinal juice is also called_____

Description : Intestinal juice is also called_____

Last Answer : Intestinal juice is also called_____

The absorbed substances finally reach the tissues which utilise them for their activities. This process is called_____

Description : The absorbed substances finally reach the tissues which utilise them for their activities. This process is called_____

Last Answer : The absorbed substances finally reach the tissues which utilise them for their activities. This process is called_____

The emtabolic pathway present in the inner mitochondrial membrane through which the electron passes from one carrier to another is called_____

Description : The emtabolic pathway present in the inner mitochondrial membrane through which the electron passes from one carrier to another is called_____

Last Answer : The emtabolic pathway present in the inner mitochondrial membrane through which the electron passes from one carrier to another is called_____

Projection of cortex between medullary pyramids is called_____

Description : Projection of cortex between medullary pyramids is called_____

Last Answer : Projection of cortex between medullary pyramids is called_____

Intestinal juice is also called_____

Description : Intestinal juice is also called_____

Last Answer : Intestinal juice is also called_____

The absorbed substances finally reach the tissues which utilise them for their activities. This process is called_____

Description : The absorbed substances finally reach the tissues which utilise them for their activities. This process is called_____

Last Answer : The absorbed substances finally reach the tissues which utilise them for their activities. This process is called_____

Endocrine part of pancreas is called_____

Description : Endocrine part of pancreas is called_____

Last Answer : Endocrine part of pancreas is called_____

Endocrine glands lack ducts and are hence, called____glands and their secretions are called_____

Description : Endocrine glands lack ducts and are hence, called____glands and their secretions are called_____

Last Answer : Endocrine glands lack ducts and are hence, called____glands and their secretions are called_____

The average time required to reach a storage location in memory and obtain its contents is called_____. A. Latency time. B. Access time. C. Turnaround time. D. Response time.

Description : The average time required to reach a storage location in memory and obtain its contents is called_____. A. Latency time. B. Access time. C. Turnaround time. D. Response time.

Last Answer : B. Access time.

Every LPP is associated with another LPP is called_____ a. Primal b. Dual c. Non-linear programming d. None of the above

Description : Every LPP is associated with another LPP is called_____ a. Primal b. Dual c. Non-linear programming d. None of the above

Last Answer : b. Dual

Sohan wants to show gratitude towards his teacher by giving her a card made by him. He has three pieces of trapezium pasted one above the other as shown in fig. These pieces are arranged in a way that AB||HC || GD || FE. Also BC=CD=DE, and GF=6 cm. He wants to decorate the card by putting up a colored tape on the non-parallel sides of the trapezium.. -Maths 9th

Description : Sohan wants to show gratitude towards his teacher by giving her a card made by him. He has three pieces of trapezium pasted one above the other as shown in fig. These pieces are arranged in a way that ... the card by putting up a colored tape on the non-parallel sides of the trapezium.. -Maths 9th

Last Answer : Let us consider the following lay out of the greeting card. Trapeziums are arranged in such a way that AB || HC || GD || FE. Also BC=CD=DE and GF=6 cm and DE = 4cm. If three parallel lines make equal ... HG+GF+BC+CD+DE = 6+6+6+4+4+4=30 cm. (b) The values are: Happiness, beauty, Knowledge.

Why ammeters have to be arranged in class and voltmeters in parallel circuit ?

Description : Why ammeters have to be arranged in class and voltmeters in parallel circuit ?

Last Answer : Ammeter must be added to the class because it measures the flow. When added in parallel, the flow will be divided into two parts. As a result, the exact value of the flow cannot be ... because adding voltage will change the voltage difference. But in parallel the voltage difference does not change.

A wire whose resistance is 90 ohm is cut into 3 pieces of equal lengths which are then arranged in parallel. Calculate the resistance of the combinati

Description : A wire whose resistance is 90 ohm is cut into 3 pieces of equal lengths which are then arranged in parallel. Calculate the resistance of the combinati

Last Answer : A wire whose resistance is 90 ohm is cut into 3 pieces of equal lengths which are then ... in parallel. Calculate the resistance of the combination.

Three long, straight and parallel wires are arranged as shown in Fig. The forces experienced by 10 cm length of wire Q is

Description : Three long, straight and parallel wires are arranged as shown in Fig. The forces experienced by 10 cm length of wire Q is

Last Answer : Three long, straight and parallel wires are arranged as shown in Fig. The forces experienced by 10 cm length ... D. `2.6xx10^(-4)`N towards the left