Biology Professor Smith 27 November 2010 Analysis of a Leaf Extract Introduction: Photosynthesis occurs when proteins in plant cells absorb light. Chlorophyll, the most commonly known pigment in plants, absorbs red and blue light, while reflecting the color green. Because of this, many plants are found to be the color green. There are, however, a wide variety of plants that range in color from red to violet. This is due to the different number of plant pigments that compose a plant
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black background; light refracted 4. Fluorescent: fluorescent stained; naturally fluorescent; *requires UV light source Compound Light Microscope: all listed above * Limit of resolution: ~0.2microns *e.coli smallest cells in see in lab; two can be so close they look like one Electron microscopes * PURPOSE: to magnify specimen; higher resolution with transmission * Scanning: outside viewing purposes; scans surface characteristics: i.e. cilia *
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Biology 2F03: Lecture 1 Chapter 2: Life on Land • • • • • • • • Labs start on the Sept 17 Why horses and cattle help restore Guanacaste forest of Costa Rica? o This forest was in decline for thousands of years, when Indians colonized central America, it caused its decline. o Its regenerated when the Europeans came with the cattle o The trees only produce a new plant after processes: the fallen fruit has to be eaten by a larger animal (mule, or horse or cow) à it has to pass
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The BioSolar Cells project Sustainable energy from photosynthesis Photosynthesis is a complex process that occurs in many variations. The BioSolar Cells Project initiative aims to specifically use this diversity to improve this process and enhance its potential as a source of energy, biomass, feed and food. NADHP ATP PLANTS El ec tro n tra Glucose ns po rt ch ai n Photosystem I Photosystem II Energy Energy Energy The world faces a rapidly increasing demand
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Associate Program Material Cell Energy Worksheet Answer the following questions: Cellular respiration: • What is cellular respiration and what are its three stages? Cell respiration is the most efficient way for cells to harvest energy stored in food. It is a catabolic pathway for the production of adenosine triphosphate also known as ATP. ATP is a high energy molecule, and is also expended by the working cells. Cellular respiration occurs in both eukaryotic and prokaryotic
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Every living thing on Earth has cells. Cells are made up of small pieces called proteins and organelles. The larger pieces are tissues and systems. Cells hold biological equipment that keeps them alive. A cells job is to organize. Each cell has a different function. Organisms grow and survive better when cells are present. If people were only made up of one cell they could only grow to one size. You also would not have a nervous system or muscles. A person’s body is made up of trillions of cells
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Semi-conductor based solar cells and Photosynthesis has many qualities that are in common. Plants receive sunlight from contact (light reaction). A photovoltaic (PV) panel provides sunlight to the solar cells. Similar to how sunlight helps produce chlorophyll in plants, semiconducting material absorbs sunlight. (Oppapers.com). Because of their outputs, photosynthesis and semi-conductor solar cells have great value.. In order to create food, plants absorb sunlight and create oxygen. While this
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Running head: PHOTOSYNTHESIS AND SEMICONDUCTOR-BASED SOLAR CELL 1 Photosynthesis and Semiconductor-based Solar Cell Jorge Tavarez Strayer University PHOTOSYNTHESIS AND SEMICONDUCTOR-BASED SOLAR CELL 2 Abstract Energy is the capacity to do work and make things happen (Mader, 2009, p. 72). Human or other living things would not be on Earth without the source of energy. In photosynthesis, plant cells harness the sun’s solar energy with carbon
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Investing populations 3 1.3 Variation in population size 5 1.4 Competition 6 1.5 Predation 8 1.6 Human populations 10 2. ATP 12 2.1 Energy and ATP 12 3. Photosynthesis 14 3.1 Overview of Photosynthesis 14 3.2 The Light- dependent reaction 16 3.3 The Light Independent Reaction 17 3.4 Factors Affecting Photosynthesis 18 4. Respiration 20 4.1 Glycolysis 20 4.2 Link reaction and Krebs cycle 21 4.3 The electron transport chain 23 4.4 Anaerobic respiration 24 5. Energy
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Tutorial #3: Photosynthesis - The Basis of Life 1) Basics of photosynthesis: Review the anatomy of the leaf and the cellular locations and organelles involved in photosynthesis. Describe and explain the role of oxygen, carbon dioxide, and nitrogen in photosynthesis. Describe and explain the role of water in photosynthesis. Describe the two phases of the photosynthetic process. How do they differ in terms of their inputs, outputs, energy requirements, and spatial locations in the plant
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