Biology Semester 2 Final Exam – Reflective Essay

Biology Semester 2 Final Exam – Reflective Essay Unit 5 precipitation & temperature climate weather global climate change Keeling curve biodiversity Unit 7a cell molecular movement concentration gradient diffusion osmosis 3 types of solutions (H, H, I) Unit 8 DNA transcription & translation RNA codon chart (genetic code) gene expression amino acid & protein Unit 6 geological timeline atmospheric [CO2] continents dominant organisms mass extinction events my geological period Unit 7b prokaryote vs. eukaryote cell cycle mitosis vs. meiosis chromosomes somatic cell vs. gamete haploid vs. diploid In Unit 5, our fundamental center was the effects of human exercises on common frameworks. One of the themes we invested our energy discussing was Climate and Global Climate change. We learned last semester in Unit 1 that the environment is precipitation and temperature throughout a time span of at least ten years. Although comparable, environment and climate are not exactly the same thing. Climate is precipitation and temperature that is less than ten years. We found out about Dr. Charles Keeling, who worked at Scripps Establishment of Oceanography (SIO) in San Diego and played out an examination in Mauna Loa, Hawaii. That review noticed the environmental CO2 fixation or air [CO2] which is what established the Keeling Curve. The Keeling Curve Was named after Dr. Keeling, who you can figure, established it. The cycle of worldwide climate change begins with expanding measures of CO2 delivered into the climate. CO2 goes about as an ozone depleting substance and traps infrared energy or warmth which causes an increment in worldwide temperature. This makes changes in climate designs and in the worldwide environment. There may be less or more precipitation which impacts food networks and our capacity to develop food. The change in precipitation can affect biodiversity since, in such a case that there's more precipitation, the biodiversity will build which may bring about overpopulation and possible termination. In the event that there's less precipitation the biodiversity will diminish which will not deliver enough assets causing an irregularity and inevitable eradication. This unit associates with unit 5 in light of the fact that the fossil fuels we are utilizing today (which are essential for human exercises) that cause the grouping of CO2 level to increment is from the sequestered fossilized plants that are amassed in CO2. That is the reason we consume non-renewable energy sources, it amounts to the climate. In unit 6 we discussed the geological timeline. Here we went right back in time where well evolved creatures scarcely lived as it just has a little populace. We found in the geological course of events that the atmospheric {CO2} levels were significantly higher than what it is today, there were additionally mass extinction events that happened all through every period inside the geological timeline, which is the motivation behind why there are distinctive prevailing dominant organisms every period just as the landmasses evolving. My geological period during the Tertiary Period were Mammals, Flower plants, and grass. During this time period the {CO2} is much higher than the {CO2} we have today. Unit 7 had two "sections" to it, 7a and 7b. Unit 7a showed us cells and the measures they go through. We started with the interaction of osmosis, which is the molecular movement of water between concentration gradients all through the cell in order to accomplish harmony. Cells are completely encircled by solutions, solutions are made of a solvent and absolute. There are 3 kinds of solutions, hypertonic, hypotonic, and isotonic. Diffusion the friend of osmosis as its development of any water particle from high to low concentration. Both assimilation and dissemination cause molecular movement inside the cells. Unit 7b we illustrated the cell cycle and portrayed the likenesses between the interaction of mitosis vs. meiosis. Mitosis is an interaction where diploid physical or body cells in request to permit eukaryotes to develop, fix, and replace destroyed cells. Meiosis is a measure in which haploid sex cells, germ cells, or gamets are created to permit male eukaryotes produce sperm and female eukaryotes to deliver ovam. The cell cycle is an interaction that permits chromosomes to develop, duplicate, and develop once more. At that point mitosis goes to deal with eukaryotes to supplant the exhausted cells. Prokaryotes utilize an interaction called parallel parting which is a one stage cycle to isolate chromosomes. Unit 8 was about DNA and RNA. DNA is the genetic material for every living thing. DNA turns into a protein that permits the cells to communicate explicit characteristics, for example, eye color, hair color, and all physical characteristics. DNA goes through transcription and translation and that is called gene expression. During transcription, the DNA format strand is duplicated and transformed into mRNA. This mRNA leaves the nuclear envelope and is the thing answerable for gene expression. The procedure of translation peruses the codon chart to deliver amino acids and protein. The ribosome peruses the bases in the mRNA from left to right and afterward tRNA comes in with the related bases. At that point the mRNA bases are perused to deliver the amino acids. This interaction brings about a huge subunit and a little subunit and one protein polypeptide. This identifies with Unit 7b since eukaryotes all go through the cell cycle.