processes are: * Photosynthesis Plants undergo photosynthesis that helps them produce energy and food for themselves. During photosynthesis‚ plants take in carbon dioxide (CO2) and absorb water (H2O) with the help of their roots. The chlorophyll present in the leaves and the energy from the sun‚ helps convert CO2 and H2O into O2‚ sugar and water vapor. Oxygen (O2) is released by the plants as bi-product into the atmosphere. * Respiration Just as plants carry out photosynthesis‚ animals carry
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Chapter 1 - Scientific Methods Objectives 1. Demonstrate a basic knowledge of classroom/science safety. 2. Understand the purpose of a hypothesis‚ and identify when a hypothesis should be used. 3. Be able to identify the independent and dependent variables in a formalized hypothesis. 4. Differentiate between an observation and an inference. 5. Contrast quantitative and qualitative observations. 6. Given a data table‚ draw and label a graph. Including a title‚ labeled units‚ and legend. 7
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CYCLE MR. DANILO L. AUREADA Internal Assessor Instructor XIV SUBMITTED BY: MR. GABBY M. SANTAMARIA ETEEAP-BSIE Biochemical Cycles Table of Contents 1. Eutrophication 2. Contributors Plants such as trees and algae undergo the photosynthesis reaction where carbon dioxide and water in the presence of sunlight are converted to organic materials and oxygen. An important reverse reaction occurs in the water: Fish use metabooilism where oxygen and organic materials - other small fish or
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to grow properly. They use light energy to change the materials - carbon dioxide and water into food substances (sugars). This process of food productions is called photosynthesis. Only in light can a green plant make food. Plants most also have clean air. Green plants take in carbon dioxide from air and use it during photosynthesis to make food. Dirty‚ smoggy air blocks sunlight that plants must have. Plants need water. Water is essential to all life on earth. No known organism can exist without
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Genevieve McNeil Artificial Selection It seems as though artificial selection is not an important topic in many people’s opinions nowadays. When people talk about science it is usually a hot button issue such as evolution or natural selection. However‚ through further thought‚ artificial selection can have a large impact if used and is important in the science world. Artificial selection is a process if breeding when “humans‚ not nature‚ choose the characteristics that we want to develop ion plants
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pioneer species are photosynthetic‚ there are a few limiting factors that affect the rate of photosynthesis: 1. Light Intensity: As light intensity increases‚ the rate of light-dependent reactions that take place during photosynthesis‚ and therefore photosynthesis‚ generally increases proportionately. However‚ as the light intensity is increased‚ another factor will eventually limit the rate of photosynthesis 2. Carbon Dioxide Concentration: An increase in the carbon dioxide concentration increases
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Introduction In 1937‚ Robert Hill discovered that isolated chloroplasts can generate oxygen when they are illuminated in the presence of a suitable electron acceptor‚ even in the absence of carbon dioxide. This finding was a landmark in the study of photosynthesis because it established that the source of the electrons used in the light reactions is water. It also confirmed that the released oxygen is derived from water instead of carbon dioxide. In chloroplasts‚ the final electron acceptor is NADP+‚
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creating high hydrogen ion concentration. Photosynthesis: • What is the overall goal of photosynthesis? The overall goal of photosynthesis is to chemically change light into energy. • Because photosynthesis only occurs in plants‚ why is it essential to animal life? It is essential to animal life not only for nutrients from the plants but also because of the byproduct oxygen that is put out from the plants from the photosynthesis process. • What is the role
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(CO2) and water (H2O); the process of photosynthesis is a complex series of chemical reactions resulting in the production of glucose and oxygen (O2). Glucose is a simple sugar‚ which is further processed into fructose and sucrose‚ and any sugars not required immediately to be metabolized for their energy are converted into starches: complex carbohydrates used to store these essential sources of energy for when they are required. The process of photosynthesis is summarized in a series of reactions
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2013.2014 S.T.F.A Lee Shau Kee College Biology SBA Name: Chan Ka Wing 6D(1) Title: Investigation of the effect of light intensity on the rate of photosynthesis Objective: To investigate the effect of light intensity on the rate of photosynthesis Principle: why this method? Variables: Apparatus and materials: 1 pipette 1 pipette filter 1 boiling tube 1 beaker 1 thermometer 1 stand and clamp 1 clip 1 60-watt bench lamp 1 razor blade 1 meter ruler 1 rubber tubing 0.25% sodium hydrogencarbonate solution
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