NCERT Solutions For Class 11 Biology Locomotion and Movement NCERT TEXTBOOK QUESTIONS FROM SOLVED 1. Draw the diagram of a sarcomere of skeletal muscle showing different regions. Solution: 2. Define sliding filament theory of muscle contraction. Solution: According to sliding filament theory of muscle contraction, the actin and myosin filaments slide past each other…
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NCERT Solutions For Class 11 Biology Excretory Products and their Elimination NCERT TEXTBOOK QUESTIONS FROM SOLVED 1.Define Glomerular Filtration Rate (GFR). Solution. The amount of filtrate formed by the kidneys per minute is called glomerular filtration rate (GFR). It is approximately 125 mL/min. in a healthy person. 2.Explain the autoregulatory mechanism of GFR.…
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NCERT Solutions For Class 11 Biology Body Fluids and Circulation NCERT TEXTBOOK QUESTIONS FROM SOLVED 1. Name the components of the formed elements in the blood and mention one major function of each of them. Solution: Blood corpuscles are the formed ele-ments in the blood, they constitute 45% of the blood. Formed elements are – (erythrocytes,…
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NCERT Solutions For Class 11 Biology Breathing and Exchange of Gases NCERT TEXTBOOK QUESTIONS FROM SOLVED 1. Define vital capacity. What is its significance? Solution: Vital capacity is defined as the maximum volume of air a person can breathe in after a forced expiration or the maximum volume of air a person can breathe out after…
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NCERT Solutions For Class 11 Biology Digestion and Absorption NCERT TEXTBOOK QUESTIONS FROM SOLVED 1. Choose the correct answer among the following: (a) Gastric juice contains (i) pepsin, lipase and rennin (ii) trypsin, lipase and rennin (iii) trypsin, pepsin and lipase (iv) trypsin, pepsin and rennin. (b) Succus entericus is the name given to (i)…
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NCERT Solutions For Class 11 Biology Plant Growth and Development NCERT TEXTBOOK QUESTIONS FROM SOLVED 1. Define growth, differentiation, development, dedifferentiation, redifferentiation, determinate growth, meristem and growth rate. Solution: Growth is defined as a vital process which brings about an irreversible and permanent change in the shape, size, form, weight and volume of a cell, organ…
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NCERT Solutions For Class 11 Biology Respiration in Plants NCERT TEXTBOOK QUESTIONS FROM SOLVED 1. Give the schematic representation of an overall view of Krebs’ cycle. Solution: 2. Differentiate between (a) Respiration and Combustion (b) Glycolysis and Krebs’cycle (c) Aerobic respiration and Fermentation Solution: (a) Differences between respiration and combustion are as follows :…
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NCERT Solutions For Class 11 Biology Photosynthesis in Higher Plants NCRT TEXTBOOK QUESTIONS SOLVED 1. By looking at a plant externally can you tell whether a plant is C3 or C4 ? Why and how? Solution: It is not possible to distinguish externally between a C3 and C4 plant, but generally tropical plants are adapted for C4 …
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NCERT Solutions For Class 11 Biology Mineral Nutrition NCRT TEXTBOOK QUESTIONS SOLVED 1.’All elements that are present in a plant need not be essential to its survival’. Comment. Soln. Most of the mineral elements present in the soil enter plants through roots but all of these may not be essential for their survival. Some are…
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NCERT Solutions For Class 11 Biology Transport in Plants NCRT TEXTBOOK QUESTIONS SOLVED 1.What are the factors affecting the rate of diffusion? Solution. Factors affecting the rate of diffusion are : Density – Rate of diffusion of a substance is inversely proportional to square root of its relative density (Graham’s Law). Permeability of medium –…
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