Cellular Transport
Storyboard-Text
- The bigger the difference, the steeper the concentration gradient and the faster the molecules of a substance will diffuse. The direction of me is with the concentration gradient
- All cells have a cell membrane. This membrane controls what goes into and out of the cells. Some substances, such as gases and water, can pass across the membrane easily by me.
- In facilitated diffusion, molecules diffuse across the plasma membrane with assistance from membrane proteins, such as channels and carriers. A concentration gradient exists for these molecules, so they have the potential to diffuse into (or out of) the cell by \
- Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by me.
- Water is one of the molecules!
- No. I am a passive process and do not require the cell to give up any of it’s energy
- Hey, I'm diffusion
- I'm Frank! I'm learning about cell transport and I have some questions for you and your buddies. First off for you, do you require energy and if so where do you get it from?
- Very cool! What are your concentration gradients and direction of movement?
- What is the reason why your substance is being transported in or out of the cell in terms of the role it plays in the functioning of the human body
- Awesome! What are your chemical / molecular components of the cell membrane?
- Amazing! Give me a molecule that uses your transport.
- Cool! What are your chemical properties of the substance being transported and why it does, or does not, require carrier protein for transport
- Without me your cells would not be able to have the proper levels of water to work at their best.
- Small molecules such as water and carbon dioxide can pass directly through the membrane because of they are neutral and so small. The intracellular fluid is the fluid contained within cells. The extracellular fluid is divided into that found within the blood and that found outside the blood. Only solutes that cannot cross the membrane contribute to tonicity. It determines the direction and extent to which water moves by osmosis
- Hey I'm osmosis
- I will give you more than 1! Water, carbon dioxide and oxygen
- No, I don't need energy, I am a passive transport process
- My direction of movement is described as movement with the concentration gradient. The particles will move from an area of high concentration to an area of low concentration.
- Can you give me a molecule that uses your type of transport?
- That's amazing! What are your chemical / molecular components of the cell membrane, the location of the extracellular and intracellular spaces, and the tonicity of the intracellular and extracellular environments?
- Is there anything else I should know about you?
- Hey osmosis, I'm frank. I was just wondering if you need energy and if so where does it come from
- Cool! What are yourconcentration gradients and direction of movement?
- carbohydrates, amino acids, nucleosides, and ions. These are polar and charged molecules that need to go across the plasma membrane
- I use carrier proteins and channel proteins. The cell membrane separates the extracellular and intracellular spaces.
- I move my materials with and against the concentration gradient.
- No, I do not require energy!
- Hey I'm facilitated transport
- Hey facilitated transport, I'm Frank. Can you tell me whether there is energy required, and where you get this energy from?
- Amazing! What are your chemical / molecular components of the cell membrane, the location of the extracellular and intracellular spaces, and the tonicity of the intracellular and extracellular environments
- What are your concentration gradients and direction of movement?
- Wow! What are some molecules that use your type of transport and why?
- Yes I use energy. The energy is used to move molecules across the membrane against a concentration gradient by breaking down ATP
- Here's one: Transportation of amino acids across the intestinal lining in the human gut
- I require specialized carrier proteins and the expenditure of cellular energy
- How's it going, I'm active transport
- Hey active transport, I'm Frank. I need to ask you some questions. Is energy required for you and if yes, where do you get it from?
- Nice! Do you require a carrier protein?
- Cool! Can you give me an example of a molecule that uses your transport and why?
- Good question! I transport vesicles. Vesicles help transport materials that an organism needs to survive and recycle waste materials. I also will mention it doesn't require a carrier protein!
- Yes I do require energy. I get my energy from ATP
- I am against the concentration gradient and I move ions from areas of low concentration to areas of high concentration
- Hello, I'm endocytosis
- Hey, I'm Frank I talked to some of your friends, and I have some questions for you. First off, Is energy required for you and if yes, where do you get it from?
- What are your concentration gradients and direction of movement?
- I see. Could I get a specific example of a molecule that uses your method of transport and why?
- Hello, I am exocytosis
- Like endocytosis, I transport vesicles. Vesicles help transport materials that an organism needs to survive and recycle waste materials. I also will mention it doesn't require a carrier protein!
- I need energy in the form of adenosine triphosphate or ATP
- I move against the concentration gradient, from a lower to higher concentration.
- I see. What are your concentration gradients and direction of movement?
- Hey exocytosis I'm Frank and I have some questions for you. First off, do you require energy and if yes, where do you get your energy from?
- Cool! Is there any molecules that use your type of transport, and why are they important
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