James La Pierre Cutts

Blog 4.B

Enzymes can have a function change if there is a change in its structure. They act as catalysts to speed up reactions for a certain function. Based on whether a substrate will interact with the enzymes specific sites. Cofactors or coenzymes will bind with the enzyme and will result in a structural change to activate the enzyme. Competitive inhibition is a repressor and will stop the binding of the substrate and result in no activation of the enzyme on the activation site. Allosteric sites can inhibit or activate a enzyme depending on the molecule added and thus changes the shape of the enzyme such as a noncompetitive inhibitor

     Compartments to perform functions to contribute to the whole divide organisms. These different types of specialized systems create a metabolic pathway to create a product. At the cellular level the cytoplasm, plasma membrane and organelles work together to function for the cell. At the Multicellular level, Organs work together for the overall function of the organism for example the digestion of food. Both multicellular and unicellular organisms work together for mutually benefits to increase efficiency of energy and matter like the Bacteria community in rumen on cows.

     Interactions between the populations affect all the populations as a whole. How species react to another species affects the whole ecosystem for example predation mutualism and parasitism. All of these relations work using a feedback mechanism to play in a ecosystem.  But however one species can have a major effect on a ecosystem. Keystone species can cause a collapse of the whole ecosystem if they are removing or added to a environment.

       Humans have a impact on both the local level and global level. Humans for example use Logging, slash and burn agriculture. Humans also introduce new species that will affect the local species. However Geological and meteorological events can impact ecosystems. For example El Niño is a global event that happens on the coast of Peru and destroys algae which in turn effects organisms in the Pacific ocean.