Question 1 Identify the structure highlighted in light yellow | | plasma membrane | | | endoplasmic reticulum | | | Golgi apparatus | | | vesicle | | | vacuole | Question 2 The molecule listed below is an example of a(n) _____. | | phospholipid | | | cholesterol | | | steroid | | | fat | | | oil | Question 3 Identify Structure D | | glycoprotein | | | cholesterol | | | phospholipid bilayer of membrane | | | extracellular matrix
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hypothesis was that in from the 0.0 to 0.3 the weight of the potatoes will shrink and from 0.4 to 0.6 the potatoes will grow. If the potatoes absorb the sucrose and gain weight then they are hypotonic. But if the potatoes shrink then they are hypertonic. If they don’t change in size at all they are isotonic. Methods In Experiment 1‚ I measured the end of the dialysis bag with a ruler to 3 cm and folded. I pleated
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Carb Cycling - First Steps Carb cycling is used to adjust your carbohydrate intake during a period of time. You can use it to lose fat or maintaining physical performance. Protein intake is usually similar every day but fat and carbohydrate intake vary based on your goals. Common Cycles Common carb cycles periods are based on three main time periods Daily Weekly Monthly And three main carb intake periods Low Moderate High Calorie intake and calorie deficit are the two important pieces in a
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Word | Definition | Clue | Cell Theory | A theory that states that all organisms are made of cells‚ all cells are produced by other living things‚ and the cell is the most basic unit of life. | | Cytoplasm | A jellylike substance that contains dissolved molecular building blocks- such as proteins‚ nucleic acids‚ minerals‚ and ions. | | Organelles | Structures that are specialized to perform distinct processes within a cell. | | Prokaryotic Cells | Cells that do not have a nucleus or other
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Brownian motion This is‚ presumably the random drifting of particles suspended in a fluid (a liquid or a gas) .This movement was discovered and later named after botanist Robert Brown (1773-1858). He was a Scottish botanist and palaeobotanist who made important contributions (including Brownian motion) to botany largely through his pioneering use of the microscope. The scientist who made Brownian motion famous is Albert Einstein‚ who brought the phenomenon to the attention of the larger physics community
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concentrated solution‚ the solution becomes hypertonic to the cells‚ causing water to exit the cells. This changes the appearance of the cells‚ causing the cells to look darker (more concentrated) and shriveled up. Null Hypothesis: When animal and plant cells are placed in a solution‚ the movement of water is not effected by the solute concentration of the solution. If animal and plant cells are placed in a more concentrated solution‚ the solution will not become hypertonic to the cells and water will not exit
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different sucrose solutions. The following data was observed and collected throughout the experiment. Observations: -Qualitative: The potatoes were: Tubed shaped Yellow in color Initially hard in texture -Quantitative: Table 1: Weight of the potato in grams before and after placed in a different concentrations of sucrose solutions. Sucrose solution (M) Weight Before (g) ± 0.01 (A) Weight After (g) ± 0.01 (B) 0 4.56 4.31 0.2 4.22 4.28 0.4 4.13 4.08 0.6 4.57 4.45 0.8 4.60 4
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solvent concentration to an area of low solvent concentration. The water was diffused from a hypotonic solution to a hypertonic solution. Because of the amount of water in the vacuoles‚ the cell became turgid. The observation under the microscope of a cell of an onion skin soaked for 15 minutes in 1 molar sucrose solution showed that the cell membrane shrunk away from the cell wall in response of the hypertonic environment. The rigidity of the cell wall protects it from collapsing and therefore the
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water resulted in the most weight gain (g) because the solution is hypotonic – a hypotonic solution results in the water diffusing into the cell because the molecules of the substance are moving from an area of higher concentration (outside of the cell) to an area of lower concentration (inside the cell) (Hammel & Schelegel 2005). Therefore‚ the water was moving into the cell‚ causing the potato cell to increase in size. The potato appeared to be quite turgid and swollen through observation. The 3%
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Problem question: When a Shell - less egg is placed into a beaker of corn syrup‚ will there be any water going into or out of the egg and if the shell - less egg is placed in a beaker of distilled water will be any net flow of water going into or out of the egg. Hypothesis: If a shell - less egg is placed into a beaker of corn syrup solution‚ then there will be a net flow of water going into the egg because the water molecules will be small enough to pass through the membrane of the egg. If
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