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Stage 2 - Mitosis
Stage 2 - Mitosis

... Prophase is the first step of mitosis. In this step, the DNA gathers together and forms chromosomes in order to get ready to divide. Tiny “threads” of DNA coil up to form chromatids that join to form chromosomes. The nuclear membrane dissolves, and two points (called centrioles) form at the opposite ...
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Can you hear me now? - International Symposium organized by the
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... Batteries come in many shapes and sizes. Some are no larger than a pill while others are too heavy to lift, but most batteries have one thing in common-they store chemical energy and change it into electrical energy. The cell is the basic unit that produces electricity. A battery has 2 or more cells ...
7th Grade Cells Review
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Cell Division - Cobb Learning
Cell Division - Cobb Learning

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chapter 1 - cloudfront.net
chapter 1 - cloudfront.net

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cell - s3.amazonaws.com

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... c) A monolayer of phospholipids with sterols. d) A bilayer of phospholipids with sterols. e) A trilayer of phospholipids. ---------------16) Which one of the following is NOT a key function of the cytoplasmic membrane? a) signal transduction b) nutrient transport c) environmental sensing d) protein ...
Chapter 8 - McGraw-Hill Education Canada
Chapter 8 - McGraw-Hill Education Canada

... In this part of the activity, you will review the functions of the organelles in plant and animal cells. 1. Complete a chart similar to the one that follows. • The first column lists the organelles found in cells. • In the second column, write the function of each organelle. • In the third column, f ...
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Cell Organelle Project
Cell Organelle Project

... perform a song/rap/poem about the organelles in a plant, animal or bacteria cell. o You need to create a flyer to match your song/rap/poem for the benefit concert. 2. Storybook- You are a world renown children’s book author. You are to write and illustrate a creative story about a plant, animal or b ...
Control of microbial growth: Sterilization and disinfectants
Control of microbial growth: Sterilization and disinfectants

... probably not spores which are resistant. • Disinfectant: use on inanimate objects like benchtops, etc. • Antiseptic: used to disinfect living tissue; must be gentler. • Bacteriostatic: keeps bacteria from growing. • Bactericidal: kills them. Sometimes subtle differences between bacteriostatic and ba ...
Cells - Mrs. GM Biology 200
Cells - Mrs. GM Biology 200

... • What are the major similarities/differences between the two types of cells? – Similarities: • both have cell membrane, cytoplasm, DNA, & ribosomes ...
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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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