Types of Cell Transport: Active Transport

Active Transport

Main Ideas

- Active Transport is a type of cell transport where certain molecules leave or enter the cell by moving against the concentration gradient

- This type of transport moves from a low to high concentration

- It requires energy to force particles to move to a more crowded area within or outside the cell

- Active Transport is mostly done through a pump, commonly a Sodium or Potassium type.

- Also can be done by Endocytosis and Exocytosis

- Endocytosis refers to how cells take in large particles through membrane-bound sacs and require ATP for the process to be accomplished

- Exocytosis refers to how cells deposit materials that are grouped in the Golgi bodies and then fuse with the cell membrane and released out of the cell through the use of energy or ATP

- Active Transport does NOT include Osmosis or Diffusion

Pictures and Animations:

 Helpful Video Explanations

- https://www.youtube.com/watch?v=Kd3LorZcJew
- https://www.youtube.com/watch?v=EmPfjfmw_O8

Reflection

         Active Transport was a topic I already knew about but since we had learned it so early in the school year, taking this topic for I blog helped me to review this concept and saved me the time of studying it again for the EOC. Also, I really like this objective, because types of cell transport, especially done with sodium and potassium pumps was very surprising and fascinating for me. I never knew the cells inside my body had such amazing capabilities! Despite already having been introduced to this topic, I was still able to learn something new that active transport can involve the movement of ions across our cell membranes using energy. I had always pictured the movement of small molecules and common substances in active transport like oxygen or carbon dioxide but I had never thought about the essential ions that are cell needed to get through active transport, like sodium ions. 

       Yet, something that surprised me was that enzymes help in the process of active transport in cells. For example, I was surprised that there were enzymes called the ATPase enzyme that allows for the transport and maintenance of sodium and potassium ions in out of cells. The concept of active transport can be applied or of concern outside of our biology class. For example, people you know may acquire a ion channel, remember that involves active transport, disease, like Brugada Syndrome, that results in the malfunction of their ions in out of their cell, thus affective their efficiency of active transport being done correctly in their body. If a doctor were to explain this, you would be able to follow along with him a lot easier if you had some background of active transport.

Citations:

"Active Transport - Brainpop". Brainpop.com. N.p., 2017. Web. 12 May 2017.

"Active Transport Across Cell Membranes". Hyperphysics.phy-astr.gsu.edu. N.p., 2017. Web. 12 May 2017.

"Khan Academy". Khan Academy. N.p., 2017. Web. 12 May 2017.

Studios, Andrew. "Biology4kids.Com: Cell Function: Active Transport". Biology4kids.com. N.p., 2017. Web. 12 May 2017.

- (also used my notebook for information)