Review 1: The Chemistry and Molecules of Life Please note that this is a general outline of some of the topics we will have discussed and are detailed in chapters 2-5 of your textbook. While this gives you an idea of some of the terms/phrases you are responsible for‚ not all the material we covered is included. You are responsible for everything discussed in class‚ but NOT for material in the book that was not addressed in lecture. Please do NOT assume that if you know the concepts/answers to the
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Parts and Functions of the Eyes Cornea : The cornea is the outer covering of the eye. This dome-shaped layer protects your eye from elements that could cause damage to the inner parts of the eye. There are several layers of the cornea‚ creating a tough layer that provides additional protection. These layers regenerate very quickly‚ helping the eye to eliminate damage more easily. The cornea also allows the eye to properly focus on light more effectively. Those who are having trouble focusing their
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Cell structure and function Cell structures come in various shapes and sizes dependent on their location within an organism and what life sustaining process it carries out. These can range from the globular protein of a red blood cell‚ designed to carry four oxygen molecules at a time to the tail like flagellum of a bacteria designed for mobility and penetration of organs within a body. There are tow major types of cells‚ prokaryotic cells and eukaryotic cells. An organelle is defined as an
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long time. Modern imaging has allowed us to study the brain and locate where important functions are occurring. Please remember that the functions do not happen in just one area of the brain. Many neural layers and areas are found in any one activity that happens. But what we do know though is that some areas do appear to be predominantly involved in certain functions. We will learn about the brain in the three-part model. We’ll first look at the hindbrain. The hindbrain is located where the spinal
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Camera Parts and Functions A Short Vocabulary List When using many of the automatic cameras today‚ many of the features listed below are obsolete. This list is provided for those students who are enthusiasts of the manual camera. Lens - It draws the light into the camera and focuses it on the film plane. Shutter - It open and closes to control the length of time light strikes the film. There are two types of shutters: a leaf shutter‚ located between or just behind the lens elements‚ and a focal
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The cells of the adaptive immune system are special types of leukocytes‚ called lymphocytes. There are two main types of lymphocytes‚ B cells and T cells‚ which are derived from hematopoietic stem cells in the bone marrow. T cells are involved in cell-mediated immune response‚ whereas B cells are involved in the humoral immune response. The surface of each lymphatic cell has receptors that enable them to recognize foreign substances. There are two major subtypes of T cells: the helper T cell and
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Cytoplasm Cell Membrane Nucelous Nuclear Envelope Nuclear Pore Lysosomes Microtubles Microtubules- Is a component of the cytoskeleton. Centriole- Aids in cell division and it’s only in animal cells. Lysosomes- Clean-up organelle it digests and breaks down lipids‚ carbs‚ and proteins. Nuclear Pore- Dots on the envelope which allows material in the and out of the nucleus. Cell Membrane- It surrounds the cell and regulates what enters and leaves the cell. It is selectively
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Short story: Definition and History. A short story like any other term does not have only one definition‚ it has many definitions‚ but all of them are similar in a general idea. According to The World Book Encyclopedia (1994‚ Vol. 12‚ L-354)‚ “the short story is a short work of fiction that usually centers around a single incident. Because of its shorter length‚ the characters and situations are fewer and less complicated than those of a novel.” In the Cambridge Advanced Learner’s Dictionary
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structure and function of four specialised human cells. The human body is made up of trillions of different cells; all play a huge role in the running and function of the body. They are the foundation of all living things. Each different cell has its own exclusive job. Without cells the human body would simply fail. All cells contain organelles which are the structures of the cells itself‚ organelles have individual functions. This essay will investigate the structure and function of four cells and how
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Different Parts of a Plant Cell Plant cells are classified into three types‚ based on the structure and function‚ viz. parenchyma‚ collenchyma and sclerenchyma. The parenchyma cells are living‚ thin-walled and undergo repeated cell division for growth of the plant. They are mostly present in the leaf epidermis‚ stem pith‚ root and fruit pulp. Mature collenchyma cells are living‚ and provide stretchable support to the plant. Lastly‚ sclerenchyma cells (e.g. fiber cells) are hard‚ non-living and
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