Parts of plants Each part of a plant has a very important function. All plants produce flowers for the same reason: to make seeds so another plant can grow. Leaves: These are the parts of the plant where food is made by photosynthesis. Leaves take in carbon dioxide from the air‚ water from the soil‚ and energy from the sunlight. During photosynthesis‚ the leaves use light energy to change carbon dioxide and water into food. (sugar) Flowers: These are the reproductive parts of
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I turned this paper in two days late‚ but the teacher was so impressed that I still got 100% Excellent; I couldn’ t have written a better paper myself. DIVERSITY OF PLANTS Plants evolved more than 430 million years ago from multicellular green algae. By 300 million years ago‚ trees had evolved and formed forests‚ within which the diversification of vertebrates‚ insects‚ and fungi occurred. Roughly 266‚000 species of plants are now living. The two major groups of plants are the bryophytes and the
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Maintaining a Balance Enzymes 1.1 Identify the role of enzymes in metabolism‚ describe their chemical composition and use a simple model to describe their specificity on substrates Enzymes are biological catalysts‚ meaning they are organic and speed up a chemical reaction without taking part in it. This means it has a vital role in metabolism where it ensures that the chemical reactions that make up metabolism can function fast enough to sustain life by lowering activation energy. Metabolism
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CORE ONE: MAINTAINING A BALANCE • IDENTIFY THE ROLE OF ENZYMES IN METABOLISM‚ DESCRIBE THEIR CHEMICAL COMPOSITION AND USE A SIMPLE MODEL TO DEMOSTRATE THEIR SPECIFITY ON SUBSTRATES. Enzymes are biological catalysts this means that they lower the energy required to start a chemical reaction within a cell but don’t get used up by that reaction. Every reaction and process in the metabolism of the cell is controlled by a specific enzyme. Enzymes are globular proteins whose shapes are specialised
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PRACTICAL 6 Seed Plants (Gymnosperms and Angiosperms) OBJECTIVES: 1. To describe the features of seed plant life cycle and the concept of the dominant generation. 2. To describe the life histories and related reproductive structures of gymnosperms and angiosperms. 3. To summarize the features that distinguish gymnosperms and angiosperms. 4. To discuss the advantages of seed plants to dominate land and their evolutionary adaptations on land. EXPERIMENT 1: Gymnosperms INTRODUCTION: Gymnosperms
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DICOT STEM Plants showing anomalous secondary growth can be studied in two main groups. (1) Those in which cambium of normal type is present and persists but by peculiarity or irregularity in its activity develop vascular tissues of unusual arrangement. (2) Those in which the normal cambium either does not develop or in soon replaced by another cambium. This abnormal cambium may either develop from cortex or pericycle and shows abnormal activity. NORMAL CAMBIUM WITH ABNORMAL ACTIVITY: Aristolochia
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beautiful tree‚ an ash tree‚ to be exact. Maybe you’re worried that that old tree won’t bounce back after losing such a big branch. Thanks lightning. What you didn’t know was that the tree was already losing steam. Nay‚ that old ash was losing phloem. Phloem‚ as in that material in the bark that translocates sucrose to all parts of the tree. And by losing this essential layer‚ that ash tree was beginning to have trouble sustaining
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Biology Topic One Maintaining a Balance 1. What are enzymes? Identify their role in metabolism. 2. Enzymes are made up of ____________‚ _____________‚ ______________ and ________________. 3. Enzymes are large __________ that are coiled up to form an ____________ __________. 4. The molecule that the enzyme acts on is called the ______________. 5. Use a model to illustrate how enzymes work. 6. Explain how enzymes
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Independent Study Unit: Apple Tree Course/ code: Biology‚ Grade 11/ SBI 3U This paper will examine apple trees by categorizing them through the following classifications‚ the vascular system‚ structures‚ its responses‚ practicality‚ and ecological importance which will be presented in a topical manner. Classification The classification of plants is the understanding of the relationships and similarities between plants. It is important to identify unknown species‚ to group or assign names
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The process of osmosis and its importance to living organisms Osmosis is the process by which there is a net movement of water through a semi permeable membrane from an area of high water potential to an area of low water potential. Within a cell‚ osmosis has the following effect. If the water potential of the cell is lower than that around the cell water will move across a concentration gradient into the cell. If this is the case‚ the increase in water in the cell‚ may cause the cell to swell
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