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Seven specialized cellular functions: - Correct Answers movement, conductivity, metabolic
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absorption, secretion, excretion, respiration, and reproduction
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Il` Nucleus - Correct Answers aids in cell division and control of genetic info, contains DNA (think
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Il` the egg yolk)
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Il` Ribosomes - Correct Answers RNA-protein complexes; float freely in cytoplasm; provide sites for
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Il` cellular protein synthesis; packages and modifies protein for transportation and secretion
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Il` Endoplasmic Reticulum (ER) - Correct Answers specializes in the synthesis and transport of the Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il`
Il` protein and lipid components of most of the cells organelles (memory factory)
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Il` Golgi complex - Correct Answers Organelle that packages and distributes proteins into vesicles
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Il` and transports within and outside of cell (refining plant in cytoplasm; traffic cop- what goes in and
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Il` out of cytoplasm)
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Il` Lysosomes - Correct Answers An organelle containing digestive enzymes; digest and remove
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Il` wastes, digest debris from dead cells; if ruptured, they can digest cell contents; autodigestion
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Il` occurs in starvation Il` Il`
Il` Mitochondria - Correct Answers Powerhouse of the cell, organelle that is the site of ATP Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il`
Il` (energy) production; pathway for metabolism of carbs, lipids, and amino acids into ATP; to keep
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Il` the cell alive; can grow and self-replicate in the cell
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Il` Cytoskeleton - Correct Answers A network of fibers that holds the cell together, helps the cell to Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il`
Il` keep its shape, and aids in movement; "bones and muscle" of the cell; have cilia to move it on out
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, Il` Characteristics of plasma membrane - Correct Answers made up of lipids and proteins; the basic Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il`
Il` component is a bi-layer of lipid molecules that are responsible for the structural integrity of the
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Il` membrane
Il` The _______________ prevents water soluble molecules from entering cells across the plasma
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Il` membrane - Correct Answers Phospholipid layer Il` Il` Il` Il` Il` Il` Il` Il` Il`
Il` Prokaryote - Correct Answers unicellular organism lacking a nucleus; contains NO organelles
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Il` (include cyanobacteria, bacteria, and rickettsia)
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Il` Eukaryote - Correct Answers organism whose cells contain a nucleus; "good nucleus;" larger w/
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Il` intracellular anatomy Il`
Il` cellular receptors - Correct Answers protein molecules on the plasma membrane, in the
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Il` cytoplasm, or in the nucleus that can recognize and bind with specific smaller molecules called
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Il` ligands
Il` 3 types of cellular receptors - Correct Answers plasma membrane receptors, channel-linked
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Il` receptors, non-channel-linked receptors Il` Il`
passive transport - Correct Answers The movement of materials through a cell membrane
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WITHOUT using energy; no-energy transport of uncharged molecules through any semi-
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permeable barrier (occurs down a concentration gradient) Il` Il` Il` Il` Il` Il`
Il` Diffusion - Correct Answers Movement of molecules from an area of higher concentration to an
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Il` area of lower concentration.
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Il` concentration gradient - Correct Answers A difference in the concentration of a substance Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il`
Il` across a distance. Il` Il`