Cell Processes and Body Organisation Nucleus The nucleus is the largest‚ most prominent organelle‚ usually spherical and roughly about 10mm in diameter. Every eukaryote cell‚ with the exception of red blood cells due to their very specific function‚ has a nucleus. The nucleus’ function is to store DNA‚ it does so in two ways: One is tightly packed and this is called heterochromatin‚ this isn’t read. And the other is loosely packed‚ named euchromatin. Euchromatin is the actively read material
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Question: Describe five different organelles and their functions. Explain the similarity and differences between eukaryotic cells and prokaryotic. All eukaryotic cells‚ whether from animals‚ plants‚ protists‚ and fungi‚ are fundamentally similar to one another but different from prokaryotic cell. A eukaryotic cell contains various other organelles‚ which perform specific functions in the cell. These organelles can be organized into few basic functional groups such as genetic control‚ distribution
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Cells and Tissues 1. Which of the following is NOT a membranous organelle? a. Lysosomes b. Peroxisomes c. Mitochondria d. Ribosomes e. Endoplasmic reticulum Answer: d 2. Which organelle contains digestive enzymes? a. Rough endoplasmic reticulum b. Smooth endoplasmic reticulum c. Lysosome d. Golgi apparatus e. Mitochondria Answer: c Lysosomes are membrane bound sacs of digestive enzymes. They are nicknamed "suicide sacs". 3. Which organelle is considered the powerhouse
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How Cell Phones Work Cell phones are very interesting! Have you ever wondered how a cell phone works? Well we have. Cell phones have changed a lot since 1984. The first cell phone that came out was called the Dyna TAC8000X. (top left) It weighed 2 pounds! The brick only offered a half-hour of talk time for every charge. You could get this amazing device for $3‚994! The man who invented this phone is Ruby Knopp. (top left) He also invented the newer modern Motorola Razor. (top middle) Some of
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Head: RELATIONSHIP BETWEEN SATELLITES AND GPS The Relationship Between Satellites and GPS and How they Work Together: Martin Hong Abbey Park High School RELATIONSHIP BETWEEN SATELLITES AND GPS The GPS System When it comes to traveling‚ a GPS (Global Positioning System) is a very useful tool to have for saving a good deal of time and gas. However to understand how they work‚ we have to look at the satellites that are constantly orbiting around our planet in order to let the
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How does visualization and confidence work together? Well‚ in order to become confident you need to learn to see yourself in a different light; you need to change from thinking negatively about yourself to feeling your own confidence. One of the best and most efficient ways to change how you see yourself is through visualization. Visualization and confidence go hand in hand because visualization is all about "seeing" something in your mind. You can use visualization to see a different you that feels
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Animals do not have cell walls‚ but do generally are multicellular‚ reproduce sexually and have gap junctions. Animals are ingesting heterotrophs; fungi have absorptive nutrition. Development order: fertilization‚ cleavages‚ blastula‚ gastrula and metamorphosis. Ancestor of animals: protozoa (choanoflagelate) Know Animal Taxonomy including Lophotrocozoa!!!! Only animals have hox genes Sponge=perifera=parazoa=lacks true tissue Eumetazoa=everything besides sponge Cephalization=sensory organs
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HOW CANCER CELLS WORK A diagnosis of cancer can be devastating. And there is good reason for this fear -- Cancer is the second leading cause of death in the United States next to heart disease‚ and will claim more than half a million lives this year. Cancer also known as a malignant tumor or malignant neoplasm‚ is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body. Not all tumors are cancerous;benign tumors do not spread to other
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more cells. Cells come in a variety of shapes and sizes that suit their diverse functions. Cell membranes help organisms maintain homeostasis by controlling what substances enter or leave cells. UEQ: How can we describe the relationship between structure and function in prokaryotic and eukaryotic cells? Concept 1: Cell Structure and Function SC.912.L.14.3 SC.912.L.14.2 Content coverage LEQ: Number 1: What is the relationship between the structure and function of the major cell organelles
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Insulin pumps send insulin through a small catheter continuously in small doses. This is places in a subcutaneous area and stays there for 2 or 3 days. The insulin pump is usually placed in the abdomen area or the buttocks. When it’s time for meals or snacks the patient can push a button which sends a bolus of insulin. This method is for patients who wants to have good control of the glucose levels and have a flexible lifestyle. Oral hypoglycemic medication is for patients who have type 2 diabetes
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