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Ask QuestionPosted by Subh Choudhury 6 years, 7 months ago
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Posted by Shivam Kumar 6 years, 7 months ago
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Yogita Ingle 6 years, 7 months ago
Exchange of gases:
(a) Exchange of gases in lungs: It is also called external respiration. In this gaseous exchange oxygen passes from alveoli to pulmonary capillary blood and CO2. Comes to alveoli from pulmonary capillary.
(2) Release of CO2 by the blood: The PCO2 (partial pressure of carbon dioxide) of blood reaching the alveolar capillaries is higher than the PCO2 of alveolar air. Therefore, carbon dioxide diffuses from the blood of alveolar capillaries into the alveolar air.
(b) Exchange of gases in tissues: In the tissues, exchange of gases occurs between the blood and the tissue cells. This exchange occurs via tissue fluid that bathes the tissue cells. The blood reaching the tissue capillaries has PO2 higher than that in the tissue cells and PCO2 lower than that in the tissue cells.
Posted by Karan Kishore Dv 6 years, 7 months ago
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Pranav Gupta 6 years, 7 months ago
(a) differentiate the functions (1) d(x)/dt = 3m/s (2) d(x)/dt = -(4m/s2)*t (3) d(x)/dt = -(4m/s2)*t (4) d(x)/dt = 0
In (2) & (3) velocity is a function of time, so it will not be constant. But in (1) & (4) velocity is constant, although in (4) it is 0.
(b) The direction of vector depends on slope of the function. In (a) we have found slopes of these functions. (slope of x-t graph = velocity). In (2) & (3) velocity is negative so these vectors will point in negative x direction. But in (1) & (4) velocity is non-negative so it will not point in negative x direction.
Posted by Ripush Garg 6 years, 7 months ago
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Dev Kumar Aidaswani 6 years, 7 months ago
Posted by Angel Chaurasia 6 years, 7 months ago
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Posted by Shashank Shukla 6 years, 7 months ago
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Posted by Shivam Tiwari 6 years, 7 months ago
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Yogita Ingle 6 years, 7 months ago
Many Sciences developed to describe the physical features of the earth such as Geology, Pedology, Oceanography Botany Zoology and Meteorology & Cultural features of the earth such as Economics, History, Sociology Political Science, Anthropology,
Posted by Prateek Panda 6 years, 7 months ago
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Posted by Raj Pratap 6 years, 7 months ago
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Yogita Ingle 6 years, 7 months ago
Phagocytosis is the process of digestion of solid substances by cells. In this process, the cell surrounds the particle and engulfs it. The foreign particle is destroyed and its contents broken down. This process is used for ingestion or for destroying the foreign particle or pathogen.
Posted by Nilesh Rajwade Rajwade 6 years, 7 months ago
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Posted by Shweta Chauhan 6 years, 7 months ago
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Gaurav Seth 6 years, 7 months ago
The poem photograph is written by shirley toulson. In this poem poet remembers the past of mother by looking into the picture and recognizing her enjoyable moments with betty,dolly and her uncle at beach holiday. Poets mother was 12 years old with sweet,shinning and laughing face. In this poem "and the sea ,which appears less changed" here is compared to human life as poet mother is no more after 4or 5 decades ;she is in grief ,pain and sorrow about the death of her mom.she compares human life with sea as sea is perrenial,immortal but humal life is mortal and short-lived . Since poet visits the same place where her mother had spent her holiday where she find everything as previous that was before in photo frame. Now at the end of the scene she finds she is left alone leaving all smiles,enjoment ,togetherness and affection behind. ONLY the THING LEFT WITH HER IS SADNESS,pain, GRIEF AND lONELINESS
Posted by Dharmender Yadav Yadav Ji 6 years, 7 months ago
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Pranav Gupta 6 years, 7 months ago
Atomic mass of 'Iodine' = 127 a.m.u.
To form 1 mole of 'HI' we need 1 mole of 'iodine atoms' is required.
Mass of iodine required = molar mass iodine = 127 grams
Posted by Rohan Nagar 6 years, 7 months ago
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Posted by Surendrapal Singh Singh Gaur 6 years, 7 months ago
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Pranav Gupta 6 years, 7 months ago
Mass of 1 atom of C-14 = 14 a.m.u.
Mass of 1 mole of C-14 = 14 grams
<hr />(using unitary method)
14 grams = 1 mole
Therefore, 7 grams = 0.5 mole
<hr />1 atom of C-14 has 8 neutrons
0.5 mole of C-14 has 8 * NA = 8 * 6.022 * 1023 = 4.8176 * 1024 neutrons
Posted by Karan Parihar 6 years, 7 months ago
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Rahul Sahoo 6 years, 7 months ago
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Dhama ...? 6 years, 7 months ago
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