Question | Answer |
What are the 6 functions of a cell?! | 1. Basic Unit of Life
2. Protection and Support
3. Movement
4. Communication
5. Cell Metabolism and Energy Release
6. Inheritance |
What are organelles?! | Specialized structures within cells performing specific functions. |
What are Cell Membrane/Plasma Membrane?! | It is the outermost component of a cell. It encloses they cytoplasm and forms the boundary between material inside the cell and material outside of it. |
What is and Extracellular Substance?! | The substances outside the cell. |
What is the Intracellular Substance?! | The substance inside the cell. |
What is a Mosaic Model?! | They are studies of the arrangement of molecules in the cell membrane. |
What is the Nucleus?! | A large organelle usually located near the center of the cell. |
What is the Nucleolus?! | It is the number from on to four per nucleus. |
What are Rough Endoplasmic Reticulum?! | A series of membranes that extends from the outer nuclear membrane into the cytoplasm and have ribosomes attached to it. |
What are Smooth Endoplasmic Reticulum?! | A site for lipid synthesis in cells. Participates in detoxification of chemicals within the cell. Stores calcium ions. |
What is the Golgi Apparatus?! | Closely packed stacks of curved, membrane-bound sacs. It collects, modifies, packages, and distributes proteins and lipids manufactured by the Endoplasmic Reticulum. |
What are Lysosomes?! | Membrane-bound vesicles formed from the Golgi apparatus. Containing a variety of enzymes that function as intracellular digestive systems. |
What is Mitochondrion?! | Small, bean-shaped or rod-shaped organelles with inner and outer membranes separated by space. |
What are Microtubules?! | Hollow structures formed from protein subunits that perform a variety of roles; helping to provide support to the cytoplasm of cells, assisting in the process of cell devision, and forming essential components of certain organelles such as cilia and flage |
What is Cilia?! | They project from the surface of cells, are capable of moving, and vary in number from none to thousands per cell. They have a cylindrical shape, contain specialized microtubules, and are enclosed by the cell membrane. |
What is the Flagella?! | They have a structure similar to that of cilia but are much longer, and usually occur only one per cell. Sperm cells each have one flagellum, which functions to propel the sperm cell. |
What is Microvilli?! | They are specialized extensions of the cell membrane that are supported by microfilaments, but they do not actively move like cilia and flagella. |
What are Ribosomes?! | The organelles where proteins are produced. |
What is the Cytoskeleton?! | The collection of microtubules, microfilaments, and intermediate Filaments that support the cytoplasm and organelles; also involved with cell movements. |
What are the 4 ways molecules can pass through the cell membrane?! | 1. Directly through the phospholipid membrane.
2. Membrane Channels.
3. Carrier molecules.
4. Vesicles. |
What is a solution?! | A solid, liquid, or gas that consists of one or more substances called solutes. |
What are Solutes?! | Substance that is dissolved in the predominant solid, liquid or gas inside a solution. |
What is a solvent?! | a predominant solid, liquid or gas. |
What is diffusion?! | A product of the constant random motion of all solutes in a solution. |
What is a Concentration Gradient?! | A measure of the difference in the concentration of a solute in a solvent between two points. |
What is Osmosis?! | The diffusion of water across a selectively permeable membrane, such as the cell membrane, from a region of higher water concentration to one of ower water concentration. |
What is Osmotic Pressure?! | The force required to prevent the movement of water across a selectively permeable membrane. |
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