Cinthya Perez Per.3 AP Biology 11/20/12 1.) In the structure of a eukaryotic plant cell consist of a membrane-closed nuclei and organelles‚ since they developed a process in which they manufacture their own food. The Chlorophyll‚ which gives the plant the green color captures sunlight to convert water and carbon dioxide into glucose and carbs‚ in which are used for the repetition of the cycle. Not only does the plant cell consist of a membrane‚ unlike other eukaryotic cells it additionally
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The hypothesis for this lab was that Core B will be the least flexible due to a loss in water. Unfortunately‚ my results led my hypothesis to be incorrect. The results that were received was that Core C was the most flexible‚ Core B was somewhat flexible‚ and Core A was not flexible and stiff. Core A was the most non-adjustable due to it being hypertonic which means that the total concentration of all the dissolved solute particles is greater than the other solution. Core B was isotonic meaning
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The plants used in this experiment are called Wisconsin fast plants‚ due to their extremely short life cycle. In just 40 days‚ the plants germinate‚ grow‚ flower‚ and die‚ which makes them convenient to study in classroom experiments. They are members of the crucifer family and are related to other plants like broccoli and cabbage. In this experiment‚ 8 fast plant seeds were planted in a self-constructed bottle-growing system‚ and they were left to grow for 7-14 days. The Net Primary Productivity
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Dissolved Oxygen and Aquatic Primary Productivity By: Mayank Makwana AP Biology Mrs. Biondo September 19‚ 2012 Design Diagram Dissolved Oxygen: Title: The effect of the temperature of water on the concentration of dissolved oxygen Hypothesis: If the temperature of the water is increased‚ then the concentration of dissolved oxygen will decrease. |Independent Variable: Temperature of water (Cº)
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AP bio final study Study online at quizlet.com/_6ovb5 1. 2 carbon atoms are fed into the citric acid cycle as a result of the oxidation of one molecule of pyruvate falling statoliths trigger gravitropism 2 9. acrosomal reaction 2. a botanist discovers a plant that lacks the ability to form starch grains in root cells‚ yet the roots still grow downward. This evidence refutes the long standing hypothesis that A human red blood cell in an artery of the left arm is on its way to deliver
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Ronald Wilson Pd:4th 11/16/12 Introduction In this experiment diffusion and osmosis is the main idea. When using diffusion and osmosis you are trying to separate different solute concentrations on either side of the membrane. Only a solute’s relative concentration‚ or water potential‚ affects the rate of osmosis. The higher the concentration of solutes‚ the faster water will flow through the membrane to equalize the concentration. The way we describe the movement from higher to lower concentration
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AP® BIOLOGY 2012 SCORING GUIDELINES Question 1 Note: At least 1 point must be earned from each of parts (a)‚ (b)‚ (c)‚ and (d) in order to earn a maximum score of 10. The ability to reproduce is a characteristic of life. (a) Describe the process of embryological development in a typical vertebrate embryo‚ beginning with a fertilized egg and ending with the development of three tissue layers. (4 points maximum) Embryological process Fertilization Cleavage (can occur in other stages)
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Diffusion Introduction Diffusion is the net movement of ions or molecules from a region of high concentration to a region of low along the concentration gradient until equilibrium has been reached. The steeper the gradient the faster the rate of diffusion. There are a few types of diffusion. Three (3) of those are: Facilitated Diffusion- refers to diffusion of substances across a cell membrane with the help of transport protein. Dialysis- refers to the diffusion of solutes across a semipermeable
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Introduction Enzymes are catalytic proteins. The purpose of a catalyst is to speed up metabolic reactions by lowering the free energy of activation or activation energy. Activation energy is known as the amount of energy needed to push the reactants over an energy barrier‚ so that the downhill part of the reaction can begin (Campbell 151). In an enzyme catalyzed reaction‚ the enzyme binds to its substrate‚ which is the reactant an enzyme acts on. In the reactions‚ the enzymes are very specific
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Biology 107 Section 1 11/4/13 Diffusion & Osmosis Introduction The purpose in this experiment was to estimate the osmolarity of potato tuber and celery cells by change of weight.Pieces of potato tuber and celery would be incubated in different sucrose solutions to find out the molarity at which weight of potato and celery tissues do not change. My hypothesis was that the Table 1: Group Data for Experiment:Estimating Osmolarity by Change in Weight Table
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