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Help please with edexcel AS Biology question! watch

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    Hello everyone!
    Could someone please explain in which direction the protein material would move through the golgi apparatus?
    A past paper question asked me to draw the golgi apparatus and the show the direction of movement through the apparatus. The Mark scheme says: arrow(s) pointing from convex/ forming side to concave/ mature side.
    What does this mean?
    Thank you very much in advance.
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    From this picture, you can can see vesicles with proteins to be packaged come in at the smaller, convex side and are secreted from the larger, concave side.
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    (Original post by h3rmit)
    From this picture, you can can see vesicles with proteins to be packaged come in at the smaller, convex side and are secreted from the larger, concave side.
    So, the proteins enter through the convex side or smallest cisternae and the gets modified, packaged and sent out through the concave side or larger cisternae? Am I right?
    If I am, thank you so much!! 😊 😌
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    (Original post by Mini101)
    So, the proteins enter through the convex side or smallest cisternae and the gets modified, packaged and sent out through the concave side or larger cisternae? Am I right?
    If I am, thank you so much!! 😊 😌
    Yep. However, in quite a lot of the pictures I've seen, the concavity and convexity of the trans (secretory) and cis (forming), respectively, is constant but the size difference isn't and the concave side only has slightly thicker cisternae. Hence, it's probably best to stick to convex/concave, or cis/trans, or forming/secretory.
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    (Original post by h3rmit)
    Yep. However, in quite a lot of the pictures I've seen, the concavity and convexity of the trans (secretory) and cis (forming), respectively, is constant but the size difference isn't and the concave side only has slightly thicker cisternae. Hence, it's probably best to stick to convex/concave, or cis/trans, or forming/secretory.
    Oh alright. Thank you very much!
 
 
 
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