Cell Membranes and Transport Hands-On Labs‚ Inc. Version 42-0033-00-01 Exercise 1: Diffusion Observations Data Table 1: Rate of diffusion in different temperatures | | ºC | Minutes | Temperature | InitialTemp. | InitialColor | 5 | 10 | 15 | 20 | 25 | 30 | 60 | Cold | 10°celsius | clear | clear | clear | clear | clear | clear | light purple | light purple | Ambient | 25°celsius
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How the Potato Changed the World In today’s world the potato is the fifth most vital crop universal‚ it follows wheat‚ corn‚ rice and sugar cane. However in the 18th century the potato was an amazing novelty‚ part of a global environmental fit started by Christopher Columbus. Roughly 250 million years ago‚ the world consisted of a single giant landmass now known as Pangaea. Physical forces broke Pangaea separately‚ creating the continents and hemispheres well-known today. Over the eons
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PLANT LOCATION The problem of how many facilities to have and where they should be located is encountered by service and product organization in both the public and private sectors. Banks‚ restaurants‚ recreation agencies‚ and manufacturing companies are all concerned with selecting sites that will best enable them to meet their long-term goals. Since the operation managers fixes many costs with the location decision‚ both the efficiency and effectiveness of the conversion process are dependent
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What is a Plant Layout? Definition of Plant Layout Plant Layout is the physical arrangement of equipment and facilities within a Plant. The Plant Layout can be indicated on a floor plan showing the distances between different features of the plant. Optimizing the Layout of a Plant can improve productivity‚ safety and quality of Products. Uneccessary efforts of materials handling can be avoided when the Plant Layout is optimized. This is valid for: - Distances Material has to move - Distances
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______________________________________ Date: ________________________ Student Exploration: Cell Structure Vocabulary: cell wall‚ centriole‚ chloroplast‚ cytoplasm‚ endoplasmic reticulum‚ Golgi apparatus‚ lysosome‚ mitochondria‚ nuclear envelope‚ nucleolus‚ nucleus‚ organelle‚ plasma membrane‚ plastid‚ ribosome‚ vacuole‚ vesicle Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. What are some of the structures inside a cell that help it to live and perform its role in an organism? ____________________________________________________________
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SICK PLANTS Hypothesis: From my research‚ I think the plant in the solution containing all nutrients will have the fastest / most successful growth‚ and the control group / water solution will have the least growth as it doesn’t have any of its necessary nutrients. Variables: The independent variable will be the solution the plants are put in to begin with. All other conditions will be kept the same‚ such as temperature‚ sunlight‚ length of shoot‚ time space left. I will have a control group
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are important to understanding cell injury and cell death regardless of the injuring agent” (Heuther & McCance‚ 2012). Cellular injury arises when a cell is unable to sustain homeostasis. The injury can be reversed if the cell can recover from whatever damage was done but if it does not recover the cell will die. The three common forms of cell injury are hypoxic injury‚ free radicals and reactive oxygen species injury‚ and chemical injury. The most common form of cell injury is hypoxic injury‚ or
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frequency f of a vibrating wire is affected by the tension F of the wire Objectives: To study stationary waves in a string. To find the mass per unit length of a string using standing waves in the string. Apparatus and Materials: 1 Function generator 2 Thread 3 Pulley 4 Wooden wedge 5 Slotted masses 6 Meter rule 7 Vibration generator Setup: Figure 1-1 Theory: Velocity of a wave: If F = tension in the string µ = mass per unit length of the string v = velocity of the wave Then‚ If
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Vocabulary: cell membrane‚ concentration‚ diffusion‚ dynamic equilibrium‚ osmosis‚ semipermeable membrane‚ solute‚ solvent Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. Suppose you were trapped on a desert island with no sources of fresh water. Should you drink water from the ocean? Explain why or why not. _________________________________________________________________________ _________________________________________________________________________ 2. What
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Aquatic plants: Fixed plants Fixed plants are held in place by their roots which grow in the water-bed. The Water Lily and Lotus are such plants. Their stems are long‚ hollow and light. These stems reach the surface of the water. The leaves and flowers‚ which grow from the top end of the stems‚ float upon the water. The leaves are broad with stomata on the top surface so that the water does not block them. Lotus The roots of lotus are planted in the soil of the pond or river bottom‚ while
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