The structural and functional unit of muscle fibres is
(A) sarcomere
(B) sarcolemma
(C) sarcoplasm
(D) myofibril
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The structural and functional units that participate in the gaseous exchange of lungs are ………
The structural and functional units that participate in the gaseous exchange of lungs are Alveoli
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The structural and functional units of the Lung are…………
The structural and functional units of the Lung are alveoli
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Ligament is made up of large number of fibres. These fibres are made up of ……………..
Correct option is C) Collagen
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The structural and functional unit of kidney is called
The structural and functional unit of kidney is called Nephron
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Describe the structure, location and function of cardiac muscle fibres.
Muscles of the cardiac tissue show characteristics of both striated and nonstriated muscle fibres. Structure: 1. Sarcolemma is not distinct. 2. Uninucleate muscle fibres appear to be multinucleate. 3. Adjacent muscle fibres join together...
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1. How are the skeletal muscle fibres and smooth muscle fibres identified based on their structure?
1. Skeletal muscles are striated muscles as it shows cross-striations in the form of light and dark bands whereas smooth muscles are without striations, thus can be differentiated. 2. Cardiac muscle...
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Name the type of muscle fibres forming the inner lining of the intestine and gastric glands.
Columnar Epithelium: Location: It is found in inner lining of intestine, gall bladder, gastric glands, intestinal glands, etc. Structure: 1. The cells are tall, pillar-like. The inner ends of the cells are narrow while...
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The structural and functional unit of eye of cockroach.
The structural and functional unit of eye of cockroach. Ommatidia
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Which type of muscle fibres are rich in myoglobin?
Red muscles are rich in myoglobin.
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The fibres which are obtained from petroleum are called i) artificial fibres ii) synthetic fibres
Correct option is D) i, ii and iv
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