Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Cell Organelles
Document related concepts
Biochemical switches in the cell cycle wikipedia , lookup
Extracellular matrix wikipedia , lookup
Cytoplasmic streaming wikipedia , lookup
Cell encapsulation wikipedia , lookup
Cell culture wikipedia , lookup
Cellular differentiation wikipedia , lookup
Programmed cell death wikipedia , lookup
Signal transduction wikipedia , lookup
Cell growth wikipedia , lookup
Organ-on-a-chip wikipedia , lookup
Cell nucleus wikipedia , lookup
Cell membrane wikipedia , lookup
Cytokinesis wikipedia , lookup
Transcript
Plant Growth AKA “Cells” The Cell Membrane • The cell membrane or (plasma membrane) is a flexible boundary between the cell and its environment – It is the outermost structure making the outline of the cell The Cell Membrane • The cell membrane allows certain things in, such as water and nutrients, and other things out • This ability of the cell membrane to allow certain things in or out is referred to as selective permeability Cell Organelles The Nuts and Bolts of a Cell Centrioles Mitochondria Nucleus Endoplasmic Reticulum Chromatin Nucleolus Cytoplasm Nuclear Membrane Cell Membrane Ribosome Lysosome Golgi Apparatus Vacuole Cell Organelles • Like many organisms have organs within them that have specific functions, cells have organelles • Organelles are membrane-bound structures within a eukaryotic cell that have specific functions The Cell Membrane • The cell membrane, or plasma membrane, is a selectively permeable layer on the outside of the cell, which contains all of the organelles within. Cell Wall • A cell wall is a fairly rigid structure located outside the plasma membrane of plants, fungi, most bacteria, and some protists which provides support and protection • The cell wall allows the cell to become quite turgid without bursting Mitochondria • A eukaryotic membrane-bound organelle that transforms energy stored in food molecules is called mitochondria – Mitochondria have highly folded membranes that produce energy-storing molecules • Mitochondria is the powerhouse of the cell Golgi Apparatus • The Golgi apparatus is an organelle in eukaryotic cells with a system of flattened tubular membranes • It sorts and packages proteins and sends them to their appropriate destinations Lysosome • A lysosome contains digestive enzymes and is responsible for digesting excess or worn out organelles, food particles, and engulfed viruses or bacteria Vacuole • A vacuole is a membrane-bound space in the cytoplasm of cells used for the temporary storage of materials – The vacuole in a plant is very large Centrioles • In animal cells, a pair of small cylindrical structures composed of microtubules called centrioles duplicate during interphase and move to opposite ends of the cell during prophase Chromatin • Long strands of DNA found in the eukaryotic cell nucleus is known as chromatin and condenses to form chromosomes Endoplasmic Reticulum • The endoplasmic reticulum is an organelle in eukaryotic cells with a series of highly folded membranes surrounded in cytoplasm • It is the site of cellular chemical reactions – Can be rough “ER” with ribosomes attached or smooth ER without ribosomes Ribosomes • Ribosomes are non-membrane-bound organelles in the nucleus where proteins are assembled Cytoplasm • Cytoplasm is the clear, gelatinous fluid in cells that is the site of numerous chemical reactions – In eukaryotes, it suspends the organelles Nucleus • The nucleus is the central membrane-bound organelle that manages cellular functions and contains DNA • The nucleus is surrounded by a nuclear membrane which can dissolve or allow structures out to the cytoplasm Nucleolus • The nucleolus is found in the nucleus and produces ribosomes Review • To link to an Internet site on parts of the cell click here!
