Term
| What are the features all cells have in common? |
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Definition
| DNA,RNA, ribosomes, proteins, cytoplasm, cell membrane |
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Term
| What is the function of ribosomes? |
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Definition
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Term
| What is the cytoplasm's function |
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Definition
| fluid that occupies much of the valume of the cell. |
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Term
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Definition
| Each cell must have abundant surface area to accomodate exchanges of nutrients, water, carbon dioxide and waste products. |
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Term
| What is the main difference between Prokaryotes, and Eukaryotes? |
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Definition
| Prokaryotes do not contain a nucleus and eukryotes do |
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Term
| What are the three domains fo life? |
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Definition
| bacteria, archea, and eukarya |
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Term
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Definition
| Area where the cells DNA molecule is located |
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Term
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Definition
| Surrounds the cell memrane of most bacteria protecting the cell and preventing it from bursting if it absorbs too much water |
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Term
| What gives a cell its shape? |
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Definition
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Term
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Definition
| tail-like appendages that enable cels to move |
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Term
| ______________cells resemb le bacteria cells. |
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Definition
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Term
| Which domain contains biochemicals that are different from other domains? |
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Definition
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Term
| Give some examples of eukaryotic cells |
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Definition
| plant cells, animal cells, yeast, mushrooms, fungi, and one celled protists |
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Term
| What is the main difference between plant and animal cells? |
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Definition
| animal cells don't have a plsma membrane but contain a cell wall instead. |
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Term
| What is bigger a prokaryote or eukaryote cell? |
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Definition
| eeukaryotic cells are 10-100 times greater than prokaryotic cells |
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Term
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Definition
| compartments that specialized functions |
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Term
| What seperates the cytoplasm from the outside of the cel? |
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Definition
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Term
| Waht is the cell membrane composed of? |
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Definition
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Term
| What makes up the phospholipid bilaryer? |
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Definition
| phosphate heads that are polar and atracted to water, and two fatty acid tails which are hydrophobic |
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Term
| What prevents ions and polar molecules from moving freely into and out of a cell? |
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Definition
| The selective permeability of the plasma membrane |
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Term
| What is meant by the term fluid mosiac? |
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Definition
| diverse molecules drift freely among phospholipids, sterols, and maintain the membranes fluidity |
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Term
| What are the types of membrane proteins? |
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Definition
| Transport proteins, enzymes, recognition proteins, adhesion proteins, receptor proteins |
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Term
| What is a endomembrane system? |
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Definition
| consists of several interacting organelles |
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Term
| What is the function of a vesicle? |
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Definition
| it transports materials insid the cell |
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Term
| _____containd DNA that specifies the "recipe" for every proteins a cell can make. |
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Definition
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Term
| How does mRNA molecules exit the nucleus? |
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Definition
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Term
| What is the nuclear envelope? |
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Definition
| seperates the nucleus from the cytoplasm |
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Term
| What assembles the components of ribosomes? |
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Definition
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Term
| What is the funciton of rough ER? |
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Definition
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Term
| What is the function of smooth ER? |
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Definition
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Term
| lipids and proteins made by the ER exit the organelle in _______. |
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Definition
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Term
| What is the function of the Golgi apparatus? |
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Definition
| sorts and packages materials into vesicles, which move toward the cell memrbane. |
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Term
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Definition
| organelles containing enzymes that dismantle recycled food particles, captured bacteria, worn out organelles, and debris |
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Term
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Definition
| Contain enzymes that dispose of toxic substances. |
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Term
| What is the function of mitochondria? |
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Definition
| Use cellular respiration to extract needed energy from food. |
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Term
| What is a long rod composed of actin? |
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Definition
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Term
| What is the function of intermeadiate filaments? |
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Definition
| maintain cells shape and help bind cells together |
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Term
| _______________is composed of a protein called tubulin. |
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Definition
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Term
| What is a tight junction? |
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Definition
| fuses cells togehter, forming an impermeable barrier between them |
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Term
| _______are short and numerous like a fringe and located in respiratory tract. |
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Definition
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Term
| What junction holds skin cells in place? |
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Definition
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Term
| What junction allows the exchange of ions, nutrients, and other small molecules? |
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Definition
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Term
| What is the function of the extracellular matrix? |
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Definition
| lending support of plasma membrane and assists in communicating between cells. |
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Term
| What do channel proteins and carrier proteins have in common? |
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Definition
| They are both involved in passing molecules through the membrane |
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Term
| What are the channel proteins that allow water to cross a membrane more quickly? |
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Definition
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Term
| _____________is a way that large particles can exit or enter a cell. |
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Definition
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Term
| fusion of a vesicle with the plasma membrane in a process celled______ |
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Definition
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Term
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Definition
| the movement of molecules from a higher concentration to a lower concentration until equilibrium is achieved without the use of energy. |
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Term
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Definition
| The diffusion of sater across a selectively permeable membrane from high to low concentration. |
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Term
| __________is the pressure that develops in a system due to osmosis. |
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Definition
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Term
| __________is the solution tha thas the same concentration in and out of the cell. |
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Definition
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Term
| What happens to a cell when put into a hypotonic solution? |
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Definition
| the cell can swell and burst |
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Term
| What happens to a cell when put into a hypertonic solution? |
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Definition
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Term
| This type of transport does not use energy goes down its concentration gradient and uses carier proteins. |
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Definition
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Term
| During this type of transport molecules or ions move through the plasma membrane moving from low concentration to high concentration |
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Definition
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Term
| What is the difference between passive transport Vs.active transport? |
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Definition
| passive transport does not require oxygen and it moves down its concentration grandient and active transport uses oxygen and moves up its concentration gradient |
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Term
| During_______cells take in substnces by forming veicles around the material. |
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Definition
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Term
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Definition
| material that is taken in by endocytosis that is large. |
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Term
| ____________occurs when vesicles form around a liquid or around a liquid or around very small particles. |
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Definition
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Term
| form of pinocytosis that is specific? |
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Definition
| receptor mediated endocytosis |
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