Biology A - Assignment 1: Cell Membranes and Temperature Background Theory Beetroot contains betalain pigments within it’s vacuole‚ which gives it it’s purple-red colour‚ it’s this pigment which leaks out as the beetroot is heated and the cells membrane begins to break down. The practicals aim is to show the effect of temperature on the cell membrane by observing the colour change of the water the beetroot was placed in. The cell membrane is important as it controls the substances enters and
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When a beetroot cell is exposed to various kinds of temperatures‚ its plasma membrane is affected and may change in structure resulting in the leaking of betacyanin. If the temperature changes‚ then I would expect to observe that there would be a change in the concentration of betacyanin that has leaked from a beetroot cell. In specific‚ at high temperatures‚ the phospholipids that make up the plasma membrane of the beet root cell become progressively more destabilized causing them to transform into
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Appreciate how a physical property that varies with temperature may be used for the measurement of temperature‚ and state examples of such properties. Recognise the need for and identify fixed points. Describe the structure and action of liquid-in-glass thermometers. Demonstrate understanding of sensitivity‚ range and linearity. Describe the structure of a thermocouple and show understanding of its use for measuring high temperatures and those that vary rapidly. 1. A clinical thermometer
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Cellular Respiration Cellular respiration is basically what cells do to break down sugars into a form that the cell can utilize as energy. Cellular respiration takes in food and uses it to create ATP. ATP is a chemical which the cell uses for energy. The are two forms of cellular respiration‚ aerobic and anaerobic respiration‚ in which will be explained. Regular cellular respiration is aerobic‚ meaning that it requires oxygen‚ but some simple organisms can only do anaerobic cellular respiration‚ which
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BLOOD PRESSURE When your heart pulsates‚ it pushes blood in your body to give it the vitality and oxygen it needs. As the blood moves‚ it pushes against the sides of the veins. The amount of this pushing is your circulatory strain. On the off chance that your circulatory strain is too high‚ it puts additional strain on your arteries (and your heart) and this may prompt to heart attack and strokes. The force that makes weight on veins that is your systolic blood pressure. An ordinary systolic pressure
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all the time‚ yet all living organisms perform one or both of two very important processes; cellular respiration and photosynthesis. Photosynthesis is performed by plant organisms and some bacteria‚ and cellular respiration is performed by all living organisms. These two processes are reliant on each other. Photosynthesis creates oxygen‚ which is used in cellular respiration. Cellular respiration in turn creates carbon dioxide‚ which is an important “ingredient” in the process of photosynthesis.
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Memorandum To: Urban Planning Department From: Name Subject: Rise of Temperature in Urcity Date: Introduction Agricultural areas all over the world are feeling the effects of suburb expansion. The cities growth is having an effect on the ability of land‚ water‚ and animals. With city growth will create problems such as climate‚ land‚ and geographical changes (Hillel‚ 1995). Critical Findings The agricultural areas of UrCity are being forced further out into the desert basin due
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2. How is the colour related to surface temperature of the star? The correlation between the surface temperature of a star and its colour is due to the phenomena known as black body radiation .A star is a black body‚where it aborbs all the radiation falling upon it.AS its temperatures gets hotter thanits surrounding‚the star radiates its on electromagnetic radiation‚known as black body radiation. This radiation is distributed unevenly but contionously through multiple wavelengths of the electromagnetic
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Drawing blood is not as challenging as you may think. When I started my job at the hospital‚ I had no previous experience in drawing blood. They put me through a training that lasted about five days‚ eight hours per day. There are many simple steps to drawing someones blood. The three biggest steps are waiting for a requisition to print off‚ preparing all of your equipment‚ and finally draw the blood. Step one is to get the requisition and take it into the patients room‚ you use this to verify
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Informational Speech Outline Topic: Blood Donation Specific Purpose: To inform the audience about donating blood. INTRODUCTION Attention Getter – Do you know how you can save someone’s life? You don’t have to be a superhero with special powers. All you need is yourself and the nearest blood bank. Topic - Today I’m going to talk to you guys about donating blood. Ethos & Audience Adaptation – The reason I chose this topic is because I am a blood donator. I go in about every
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