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Details - Nile College
Details - Nile College

... COURSE CONTENT: Lecture topics: (These topics are to be delivered in 15, 11/2 hour lectures. Topic (1): Course description, characteristics of living things at the cellular & molecular levels, the relevance of biology to the medical sciences. Topic (2): ...
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and View

... D. ribosomes- structures that make proteins 1. float freely in cytoplasm 2. DNA tells ribosomes how, when and what order to make proteins E. organelles- found only in eukaryotic cells F. nucleus- directs all cell activities of the cell 1. contains the DNA G. chloroplasts- contain chlorophyll- a gree ...
01. Reproduction of Cells
01. Reproduction of Cells

... The hereditary material , also called the genetic blueprint is organized into 46 parts known as chromosomes (DNA molecules are found in chromosomes). Every time a cell reproduces, or divides, each chromosome must be copied and distributed so that each new cell gets a complete and accurate set of inf ...
cytology - mlhsbahr
cytology - mlhsbahr

... • Proper pH – pH is a measure of acid and base concentration; a deviation of pH can disrupt cell and tissue function • Food and wastes – intakes nutrients and gets rid of waste materials • Maintenance and repair – replaces old proteins with new ones; old proteins are recycled by being broken down i ...
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... breaks down glucose to release carbon dioxide, ________________________________________________________ and alcohol. ...
Cell Structures - Manhasset Schools
Cell Structures - Manhasset Schools

... • The cell membrane encloses the cytoplasm and controls what enters and leaves the cell. • The cytoplasm helps the cell keep its shape. • Eukaryotic cells contain a nucleus and other organelles. They include the mitochondrion, endoplasmic reticulum, Golgi apparatus, vesicles, vacuoles, lysosomes, an ...
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Notes Chapter 4 Structure and Function of the Cell

... 3) Cell membranes are made primarily of lipids and proteins a) One of the major types of lipids is the phospholipids Phospholipds have a hydrophilic polar head and a hydrophobic nonpolar tail b) Because cells are filled with water and are surrounded by water, the phospholipids will fold over so tha ...
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... Cells are made of atoms, so cells are larger than atoms. Imagine a centimeter divided into only 10,000 parts. The size of one of those parts is about the size of a cell. There are about 100 trillion atoms (100, 000, 000, 000, 000)in a cell and about 100 trillion cells in your body. ...
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Cell Structure & Function

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Slide 1 - Ommbid.com
Slide 1 - Ommbid.com

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Study Guide: Unit 3 – Cells and Cell Transport

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Cell Theory Lab-honors-bio

... 7. How does the size of a red blood cell contribute to its function? 8. Calculate the surface area : volume ratio of each of the cells of a 2 cm cuboidal and 7 cm cuboidal cell. (show all math). 9. How is the size of a cell related to how efficiently the cell brings in items it needs to maintain hom ...
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... 1. Please, explain how and why the ancient eukaryotic cell evolved to develop the mitochondrion. Also, discuss any advantage and/or disadvantage of the presence of this extra organelle in the cell. NOTE: Be thorough and specific. Include any molecule, structure, process, condition, and/or location t ...
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Organic Compounds (Chapter 1)

...  Cells perform many activities and all of them require energy, or the ability to do work or cause change  Animals are heterotrophs (organisms who must consume other organisms for energy)  Plants are autotrophs (organisms that make their own food)  Plants have to use the energy from the sun to ma ...
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Ch 7-1: Life is Cellular

... Eukaryotic Cells • Nucleus: Contains DNA and controls the cell’s activities -Chromatin: Tightly coiled strands of DNA & protein found within the nucleus. • Nucleolus: Dense small region found within the nucleus that makes ribosomes • Nuclear Envelope: Controls what materials go in and out of the nuc ...
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Nutrition and Digestion 10/29

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Cells Test

... Fill in the blank: 1. The _ribosomes________________makes proteins within the cell. 2. TheER transports materials in the cell. 3. Golgi bodies sorts and packages materials in the cell like UPS. 4. The nuclues is the control center of the cell: it directs all activity of the cell. 5. The Plant ell ha ...
3.3 Chemical Compounds
3.3 Chemical Compounds

... energy for the cell, carbohydrates are important components of some cell parts.” •The cellulose found in the cell wall is a type of carbohydrate •When you eat carbohydrates your body breaks it down into starch and sugar ...
Cell Processes chpt 9
Cell Processes chpt 9

... into cells already high in concentration (this is opposite of diffusion) ◦ Requires energy to get them into cells ◦ Transport protein is required to move across cell membrane ...
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Endomembrane system

The endomembrane system is composed of the different membranes that are suspended in the cytoplasm within a eukaryotic cell. These membranes divide the cell into functional and structural compartments, or organelles. In eukaryotes the organelles of the endomembrane system include: the nuclear membrane, the endoplasmic reticulum, the Golgi apparatus, lysosomes, vesicles, endosomes and the cell membrane. The system is defined more accurately as the set of membranes that form a single functional and developmental unit, either being connected directly, or exchanging material through vesicle transport. Importantly, the endomembrane system does not include the membranes of mitochondria or chloroplasts.The nuclear membrane contains two lipid bilayers that encompass the contents of the nucleus. The endoplasmic reticulum (ER) is a synthesis and transport organelle that branches into the cytoplasm in plant and animal cells. The Golgi apparatus is a series of multiple compartments where molecules are packaged for delivery to other cell components or for secretion from the cell. Vacuoles, which are found in both plant and animal cells (though much bigger in plant cells), are responsible for maintaining the shape and structure of the cell as well as storing waste products. A vesicle is a relatively small, membrane-enclosed sac that stores or transports substances. The cell membrane, is a protective barrier that regulates what enters and leaves the cell. There is also an organelle known as the Spitzenkörper that is only found in fungi, and is connected with hyphal tip growth.In prokaryotes endomembranes are rare, although in many photosynthetic bacteria the plasma membrane is highly folded and most of the cell cytoplasm is filled with layers of light-gathering membrane. These light-gathering membranes may even form enclosed structures called chlorosomes in green sulfur bacteria.The organelles of the endomembrane system are related through direct contact or by the transfer of membrane segments as vesicles. Despite these relationships, the various membranes are not identical in structure and function. The thickness, molecular composition, and metabolic behavior of a membrane are not fixed, they may be modified several times during the membrane's life. One unifying characteristic the membranes share is a lipid bilayer, with proteins attached to either side or traversing them.
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