GATE life Sciences Study Materials

GATE XL 2018 Chemistry Solved Question Paper with Answer Key


GATE Chemistry Old Question Papers

Official / Original Previous Year (Old) Solved Question Paper of GATE Life Sciences (XL) 2018 (Chemistry) with Answer Key and Explanations as PDF. GATE XL aspirants can download the question paper as single PDF file for your exam preparation. Please feel free to inform us for any mistakes in the answer key provided.

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GATE XL Model Questions GATE XL Previous Year Papers


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GATE life Sciences Study Materials

GATE XL 2018 General Aptitude Solved Question Paper with Answer Key


GATE General Aptitude Papers

Official / Original Previous Year (Old) Solved Question Paper of GATE Life Sciences (XL) 2018 (General Aptitude) with Answer Key and Explanations as PDF. GATE XL aspirants can download the question paper as single PDF file for your exam preparation. Please feel free to inform us for any mistakes in the answer key provided.

To download the question paper, please click on the download link below the preview…


GATE XL Model Questions GATE XL Previous Year Papers


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GATE EY 2018 Ecology and Evolution Solved Question Paper with Answer Key


GATE EY Online Coaching

Official / Original Previous Year (Old) Solved Question Paper of GATE EY (Ecology and Evolution) 2018 Examination with Answer Key and Explanations as PDF. GATE EY aspirants can download the question paper as single PDF file for your exam preparation. Please feel free to inform us for any mistakes in the answer key provided.

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Human Physiology Lecture Notes

Difference between A-Band and I-Band of Sarcomere – Comparison Tab


A-band vs I-band

A-Band vs I-Band
Difference between A-Band and I-Band of a Sarcomere

The basic structural and functional unit of a striated muscle is called the Sarcomere. The sarcomere is the repeating units of a striated muscle occur between two Z-lines. This gives the striated appearance of the skeletal or cardiac muscles. The sarcomere composed of myofibrils, an array elongated contractile protein threads found in striated muscle cells. There are two types of myofibrils in the sarcomere called thin filaments and thick filaments. The thin filaments are made of protein called Actin and the thick filaments are made of proteins called Myosin. The actin and myosin filaments in a sarcomere are arranged in a specific manner so that their overlapping and interlocking patterns produce distinct bands when they are observed under a microscope. These bands are technically called as A-bands (Anisotropic) and I-Bands (Isotropic). The present post discusses the Difference between A-bands and I-bands with a comparison table.

Sarcomere diagram

Structure of Sarcomere (Source: Wikipedia)

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