Diffusion in Cells Isabel Zak Question: How does the size of a cell affect the distribution of chemicals throughout the cell? Hypothesis: The larger the cell is‚ the more difficult it will be for the chemicals to reach the centre of the cell‚ and diffuse throughout it. This is because there will be a higher surface-area to volume ratio in the larger cells‚ making the centre of the cells further away from the surface. Therefore‚ when dipped in sodium hydroxide‚ the larger cells will not be
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Case Study 3: Cell stucture and function Background Information: what are the major feature of eukaryotic cells? In this case study‚ you will apply your knowledge regarding the function of cell structures. Metabolic disorders and unique characteristics of some cells will be used to illustrate the importance of individual structures. Pick 5 out the following 7 small case studies. Each one focuses on one cell component. For each cell component‚ answer the following questions and also any questions
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A Plant cell is complex and difficult to understand. A Plant cell is comparable to a party at a mansion. Each organelle which makes up the cell of a Plant is comparable to an aspect of a party. The membrane in a Plant cell separates the cell from the environment and regulates the molecule passage in and out of the cell. The bouncer is considered the membrane of the party. The bouncers have a list and‚ only allow certain people into the party‚ separating who is inside the party from who is
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Fast Plants Lab Background Gregor Mendel is an Australian monk‚ who worked in a garden at a monastery. He experimented with pea plants‚ and soon became known as the father of genetics. The reason he studied pea plants was because they grow quickly‚ the traits can be easily observed‚ and the plant is easy to pollinate. Mendel’s method was to control the pollination of the pea plants and create offspring’s of the two plants that were pollinated together. Using self-pollination and cross pollination
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Plants Study Guide Allison Henry G1 Plants Charophyceans (green algae)- closest relatives of land plant 4 Shared Traits 1. Rose-shaped complexes for cellulose synthesis 2. Peroxisome enzymes 3. Structure of flagellated sperm 4. Formation of phragmoplast a. Group of microtubules that form between daughter nuclei during division of cells Adaptations In charophyceans- layer of sporopollenin prevents exposed zygotes from drying out Allows plants to live further from water Derived Traits of
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Seeing Similarities Between Plants and Animals As you look around outside‚ you may see birds perched in trees‚ frogs croaking on lily pads‚ and even dogs digging in the grass. Our world is filled with plants and animals‚ yet when a person thinks of the phrase ’plants and animal‚’ they automatically begin thinking about the differences between the two. As different as they may seem‚ plants and animals are very similar in the following areas: reproduction‚ human uses‚ and the requirement of water
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Lab 11- Plant pigment and Photosynthesis Zelda Salfati December 20th‚ 2012 BIOL 1012Y Partners Lab: Nicole Mintz‚ Bayla Kronman
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(2015)‚ animals can be described as organisms that are multicellular‚ heterotrophic eukaryotes that have tissues made from embryos. The difference between plants and animals are from their source of nutrients. Plants get their food by making them through a process called photosynthesis‚ which makes plants an autotroph. Animals‚ on the other hand‚ get their food by consuming other organisms and ingesting them‚ which makes them a heterotroph. Besides that‚ there are also variations in their cell structures
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Under Microscope Lab Report A. The purpose of the investigation is to determine the time an onion cell spends in each part of the cell cycle. B. The significance of this investigation is to help us understand and know how long cells are undergoing mitosis. My personal interest is to know the phases of mitosis in cells in order to someday help find cures for cancer. C. The cell cycle is a chronological set of events‚ culminating in cell growth and division into two daughter cells. Some of the reasons
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ACTIVITY 1 Simulating Dialysis (Simple Diffusion) 1. Describe two variables that affect the rate of diffusion. __The size and the concentration. ___ 2. Why do you think the urea was not able to diffuse through the 20 MWCO membrane? How well did the results compare with your prediction? __ The molecules were to large to go through. My results matched._ 3. Describe the results of the attempts to diffuse glucose and albumin through the 200 MWCO membrane. How well did the results compare with your
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