CBSE PMT – 2007 SCREENING PHYSICS 7. In the following circuit‚ the output Y for all 1. The primary and secondary coil of a transformer have 50 and 1500 turns respectively. If the magnetic flux φ linked with the primary coil is given by φ = φ0 + 4t‚ where φ is in webers‚ t is time in seconds and φ0 is a constant‚ the output voltage across the secondary coil is (a) 120 volts (b) 220 volts (c) 30 volts (d) 90 volts A beam of electron passes undeflected through mutually perpendicular electric and magnetic
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Introduction to B I O L O G I C A L S C I E N C E A Simplified Approach 05.29.2013 RICHARD M. ADRIANO‚ RN 0261849 ------------------------------------------------- NATURAL SCIENCE 1 CHAPTER 1 INTRODUCTION TO BIOLOGICAL SCIENCE Biological science is the study of living things. In this context we may ask: What are living things? We humans‚ ourselves are living things. How do living things differ from non-living things? To answer these questions‚ we must first define the word life
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Evaluation of antidiabetic and antimicrobial activity of jasminum grandiflorum leaves INTRODUTION 1.1. The pancreas and insulin formation The pancreas is an elongated organ situated next to the first part of the small intestine. It is both an endocrine gland that produces hormones‚ such as insulin and glucagon‚ and an exocrine gland producing digestive enzymes‚ such as trypsin and chymotrypsin (Martini‚ 2004). It is located behind the stomach‚ between the spleen and the duodenum (see Figure
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Springer-VerlagTokyo102650918-94401618-086030669031Journal of Plant Research J Plant Res009410.1007/s10265-003-0094-6 J Plant Res (2003) 116:221–231 Digital Object Identifier (DOI) 10.1007/s10265-003-0094-6 © The Botanical Society of Japan and Springer-Verlag Tokyo 2003 JPR SYMPOSIUM Takashi Aoyama • Atsuhiro Oka Cytokinin signal transduction in plant cells Received: February 4‚ 2003 / Accepted: March 8‚ 2003 / Published online: April 17‚ 2003 Abstract Cytokinins regulate
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1.1.1 In small unicellular organisms‚ substances move around slowly by diffusion. Diffusion is too slow to move substances round the larger bodies of multicellular organisms. They have a circulatory system: substances are carried in blood pumped by a heart. In a closed circulatory system (eg in vertebrates) blood is enclosed in narrow blood vessels. This increases efficiency: blood travels faster as a higher pressure is generated. Valves ensure blood flows in one direction:
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PHARMACOGNOSY REVIEWER In pharmacognosy‚ drugs may be classified based on morphology‚ chemical constituents and therapeutic applications (NOT price in the market) Factors that influence secondary constituent: heredity‚ ontogeny‚ environment Chromatography: process based on distribution of mixture between 2 phases General Information Discoverers/Scientists Joseph Caventou & Pelletier Quinine antimalarial Pierre Robiquet Codeine/Narcotine Philip Geiger & Rudolf Brandes Hyoscyamine and
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Control‚ Genome and Environment Cellular Control & Variation Cellular Control (a) state that genes code for polypeptides‚ including enzymes; (b) explain the meaning of the term genetic code; The sequence of the bases on a gene is a code with instructions for the construction of proteins. It has a number of characteristics: It is a triplet code- three bases code of an amino acid It is a degenerate code- All amino acids bar one have more than one code Some codes don’t code for amino acids
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[pic] PRESERVE USE OF FRUITS MARKET DATE OF SUBMISSION: AUGUST 11‚ 2008 [pic] PRESERVE USE OF FRUITS MARKET Submitted To: Dr. Mst. Dilruba Khanam Associate Professor Marketing Studies & International Marketing. University of Chittagong Submitted By: Abdul Wahed BBA (4th year) Class Roll-5166 Exam Roll-2003/75 Session- 2002-2003 Marketing Studies & International Marketing. University
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Evolution by natural selection is slow but can be observed in certain situations. How to spot evolution in real time: Artificial selection – manipulation by humans such as breeding dogs or growing corn. Repro-rate – rate of reproduction. Stochastic Event: unexpected disaster like a volcano eruption or tornado. (Research geological time) LIVING THINGS: Biology – Study of living things. Living things – all the organisms descended from a single-celled ancestor. * Characteristics:
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Alcoholic Beverages: Alcoholic beverages have been consumed by humans since the Neolithic era; the earliest evidence of alcohol was discovered in Jiahu (site of a Neolithic Yellow River settlement based in the central plains of ancient China) dating from 7000–6600 BCE. The production and consumption of alcohol occurs in most cultures of the world‚ from hunter-gatherer peoples to nation-states. An alcoholic beverage is a drink that contains ethanol. Alcoholic beverages are divided into three
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