Unit 2 Reflection

In this unit, we learned the basics of Miniature Biology, attempting to answer the essential unity question, "How does increasing molecular complexity serve as building blocks of life." We learned about atoms, elements, compounds, bonds, the Big 4 Macromolecules, and enzymes. Atoms are the basic building blocks of life and are made up of 3 particles, protons which are positively charged, neutrons which are neutral, and electrons, which are negatively charged. Protons and neutrons together form the nucleus, and electrons are circling the nucleus. We learned about ionic bonds, when an atom gains or looses an electron, covalent bonds, in which electrons are shared between atoms, and hydrogen bonds, that hold molecules together due to slight attractions of positive and negatively charged regions.

The Big 4 Macromolecules, were Carbohydrates, Lipids, Proteins and Nucleic Acids, molecules that ALL cells are made up of.  Each has a different characteristic, type, function, and are found in different places. For example, Carbohydrates are used as our main source of energy, and are broken down by mitochondria to make ATP. In a nutshell, enzymes are biological catalysts, which speed up chemical reactions, converting substrates into products. They can be affected by both pH and temperature. I really enjoyed and understood learning about bonds and macromolecules. But I really struggled when learning about enzymes and the basic function they serve - speeding up reactions.

Throughout this chapter, I really learned the importance of perseverance. At first glance, I did not understand enzymes at all. I read tons of information online and watched videos to understand the process and function of enzymes, and how specifically it speeds up the chemical reaction. Another skill I learned is too re-watch the vodcasts twice, once just to understand and to take notes the second time. This really helped me, as I could understand the vodcast on the first go and then solidify my knowledge when taking notes.

I really want to learn more about the four macromolecules and their effect on the human body. More specifically, I want to learn what each carbs, lipids, proteins and nucleic acids do to your body, especially when you are a teenager. Also, what type of carbs, and proteins should you get your energy from, and how this differs for different kids,

Share this: