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Transcript of Cell A
design by Dóri Sirály for Prezi
The cell membrane is in both plants and animals. It's function is to form a boundary between the inside of the cell and its surroundings and only let certain molecules in and out like oxygen, waste, water, nutrients, etc.
The cell membrane is like the gates that allow passengers on and off of planes because without a specific ticket and sometimes passport, passengers do not recieve verification to get through to the plane.
Cell Membrane Analogy
The nucleus' function is to direct the normal activities of the cell, and store the genetic material (DNA) for each cell. Nuclei are in both plant and animal cells.
The air traffic control tower is the nucleus of the airport because it directs all of the planes activities and contains and controls the main schedule the planes are suppose to be running on.
The nucleolus is inside of the nucleus, and its function is to hold the chromatin (genetic material) and synthesize ribosomes.
The head air traffic control officer communicates demands (like ribosomes produce proteins to assist in cell functions) to the planes and to the airport while flights are landing, taking off, and stores the knowledge of the schedule and how the airport functions.
Similar to the cell membrane, the nuclear membrane functions to selectively transport materials in and out of the nucleus. Present in both animal and plant cells.
The radio waves that travel between the tower, the planes, and the gates are what selectively (at the operator's discretion) transfer materials and information in and out of the tower.
Nuclear Envelope Analogy
Chromatin is what holds the genetic material responsible for transferring the DNA blueprints of a cell over to RNA.
The control board and computer system used in air traffic control tower are what hold the "DNA" or the original plan of how the flights will take their ascent and descent paths.
Produced in the nucleolus, ribosomes are small little dots attached that can either attach themselves to the Rough ER or float freely through the cytoplasm. Their function is to synthesize proteins by building chains of amino acids.
The commands and directions from control tower are like the ribosomes because they are what "builds" the planes' power to use certain runways.
Cytoplasm is the jelly-like substance inside of the cell that stores all of the organelles.
The walkways through the interior of the airport are like the cytoplasm because this is where all of the tickets are sold, passengers wait, eat, and where they board the planes.
Cytoskeleton is a cellular skeleton inside of the cytoplasm that forms structures such as flagella and cilia and plays important roles in intracellular transport and cellular division.
The physical structure of the airport terminals where the passengers enter to board their planes is the cytoskeleton because it is the structural support that allows passengers to navigate to their planes.
Microtubules, built from the protein tubulin, are intracellular tubelike structures that are responsible for various kinds of movements in eukaryotic cells. They also are a vital part of the cytoskeleton, aiding in supporting the cell's shape and structure.
The escalators, elevators, and stair cases that transport passengers from one from one level to another are like microtubules because they aid in structural support and their do their part in transport as well.
Microfilaments are threadlike intracellular structures, made of the protein actin, that aid in structural support of the cytoskeleton.
The beams, concrete slabs, and walls of windows are like the microfilaments because they do not have a specific transport function like the microtubules do, but without them the airport would not stand.
Cilia are short hairlike organelles found on the outside of the cells that assist in moving objects across the outer surface of the cell membrane, usually very many are present on the outside of the cell.
The carts that are used to tow planes in and out of the gates are like cilia because they are very numerous and they assist in moving objects (planes) around and across the outside of the airport.
Long thin appendage that protrudes from the ends of some eukaryotic cells, and most single cell organisms. Their function is to assist in movement and sensing of surroundings.
The collapsible gate walkways that move people from gate entrance to plane door are like flagella because they are long and assist in movement.
Lysosomes are small sac-like structures surrounded by a single membrane and containing strong digestive enzymes which when released can break down worn out organelles or food.
Lysosomes are like the janitors and maintenance team that collects trash, waste, cleans, and destroys broken parts of the airport and planes when they are old and useless.
Mitochondria are the powerhouse of the cell where cellular respiration takes place and the cell gets its energy
The generators powering the building are like the mitochondria because they power the airport's activities and they produce energy.
Made up of cellulose, the cell wall is only found in plants and it assists in supporting the structure and protecting the cell's shape and interior.
The exterior walls of the airport makes up the "cell wall" because it protects the inside of the airport and holds up the building's structure.
Cell Wall Analogy
Golgi bodies are stacks of flattened membranous sacs that they look like pancakes which temporarily stores proteins that can then leave the cell via vesicles pinching off from the Golgi.
The area where the planes dock and then move towards the runways is the golgi apparatus because the planes are docked and loaded at the gates and then the planes (proteins) take off (or pinch off) and leave the airport (golgi).
Golgi Apparatus Analogy
The Endoplasmic Reticulum is a network of membranous canals filled with fluid, connected to the nucleus, that carry materials throughout the cell. The ER is the "transport system" of the cell. The smooth ER does not have ribosomes attached to it.
Smooth Endoplasmic Reticulum
The Endoplasmic Reticulum is a network of membranous canals filled with fluid, connected to the nucleus, that carry materials throughout the cell. The ER is the "transport system" of the cell. The rough ER has ribosomes attached to it making it "rough"
Rough Endoplasmic Reticulum
The carts that carry luggage from the luggage check to be loaded into the plane are like the ER because they help transport things across the airport.
Smooth ER Analogy
The loaded carts that carry luggage from the luggage check to be loaded into the plane are like the ER because they help transport things across the airport.
Rough ER Analogy
Most molecules, including proteins, are too large to pass directly through membranes. Instead, large molecules are loaded into small membrane-wrapped (phospholipid bi-layered) containers called vesicles.
The doors to the gates are like vesicles because they allow passengers in and out of the airport through a specified entryway.
Perioxisomes breakdown very long chain fatty acids through beta-oxidation, so they are broken down small enough that they can be broken down further by mitochondria.
The solar panels that collect energy and breakdown the radiant energy into mechanical energy to power the lights are like perioxisomes.
Centrioles are vital parts of the animal cell division process, they are what pull towards each end of the cell so that the cell may start separating.
The airplane flag people that use the orange lights to direct the plane to its runway are what "pulls" the plane to "separate" from the airport.