cells‚ irregularly-shaped cells that having many intercellular spaces to allow the passage of gases‚ such as the intake of carbon dioxide for photosynthesis to take place. The stomata is the way in which these gases are exchanged‚ as well as the transpiration of water from the xylem‚ either by the apoplast or symplast pathway. Palisade cells are positioned towards the upper surface of the leaf and contain the largest number of chloroplasts per cell in plants. This makes them the primary site of photosynthesis
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sun is the most important part of renewing our water supply.It can be solid (ice)‚a liquid (water)‚ or gas (water vapor). Water on earth is always changing. How do these changes happen? It is made up of a few main parts:evaporation (and transpiration)‚condensation and precipitation. Evaporation is when the sun heats up water in rivers or lakes or the ocean and turns it into the vapor. The water vapor leaves the river‚lake or ocean and goes into the air. Condensation is water vapor in
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Name __________________________________ AP Biology Period _________ Date ______________________ AP: LAB-RELATED AP EXAM ESSAYS LAB 1. OSMOSIS AND DIFFUSION ESSAY 1992 A laboratory assistant prepared solutions of 0.8 M‚ 0.6 M‚ 0.4 M‚ and 0.2 M sucrose‚ but forgot to label them. After realizing the error‚ the assistant randomly labeled the flasks containing these four unknown solutions as flask A‚ flask B‚ flask C‚ and flask D. Design an experiment‚ based on the principles of diffusion
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6. Anatomy of Flowering Plants Tissue It is a group of cells that are similar in structure and are organised together to perform a specific function. It is of two types: Meristematic tissues and Permanent tissues Meristematic tissue It consists of actively dividing cells that are found in those regions of the plant body that show growth. The examples include root tip‚ shoot tip‚ and base of the leaves. It is classified into three types: i. Apical meristem: They are present in
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Title______________________________________________________________________ Influence of Rhizobium on the growth and yield of Rice Abstract___________________________________________________________________ Rice (Oryza sativa L.) is one of the world’s most important crops. The present investigation was designed to assess the range of growth-promoting activities of various diazotrophic bacteria on rice seedling vigor‚ its carryover effect on straw and grain yield‚ and the persistence of an
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The scientist‚ who has contributed to biology that has made an impact on my life‚ is Stephen Hales. Whether or not you have the prognosis‚ his discovery provided a way for individual to live a healthier life. Not only did Stephen Hales pioneer the study of plant physiology‚ then he contributed to the first major account of blood pressure‚ and the invention of a machine for ventilating buildings. To formulate the results vital for his implications‚ he carefully measured the blood pressure of three
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Baby Investigatory Project :D Ingredients 1 cup of boiling water 3 tablespoons White Flour 4 tablespoons cold water 1 tablespoon sugar Materials Tablespoons Measuring Cup Pot Whisk Matches Container Refrigerator Nganong ang flour makapilit man unsay naa ana niya ? For me its because when wee add Flour into the water it becomes sticky Flour Flour is a powder which is made by grinding cereal grains‚ or other seeds or roots (like Cassava). It is the main ingredient of bread‚
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h. Transparency viii. Vital to aquatic organisms ix. Allows light to reach the structures within the organisms i. Cohesion x. Many organisms use the surface of the water as their habitat. xi. Transpiration: How liquid moves within plants xii. Buoyancy: supports organisms j. Universal Solvent xiii. Allows substances to be transferred via the water in a dissolved state. k. High Specific Heat xiv. Water temps
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Climate Change and its Impact on Agriculture Climate change is an emerging issue of agricultural production and geographical location of India makes it vulnerable to climate change. For most people‚ the expression “climate change” means the alteration of the world’s climate that we humans are causing‚ through fossil fuel burning‚ clearing forests and other practices that increase the concentration of greenhouse gases (GHG) in the atmosphere. However‚ scientists often use the term for any change
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Internal Structure Of A Plant PLANT CELL STRUCTURE Plant cells are classed as eukaryotes organisms‚ because they have a membrane enclosed nuclei and organelles. Here is a diagram of a plant cell;  Cytoplasm Most chemical reactions take place here. It helps the cell maintain it’s shape. Nucleus The nucleus has two main roles. Firstly it contains all the cells genetic information. Secondly it coordinates the cell’s activities‚ which include growth‚ intermediary metabolism‚ protein synthesis
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