Translation begins when RIBOSOME and tRNA converge on an mRNA molecule in the cytoplasm. Translation is the process by which the genetic information transcribed on mRNA is transform into proteins. The process is divided into three stages: initiation, elongation and termination. During elongation, the ribosome reads each codon of the mRNA and directs the tRNA to bring the particular amino acid into the ribosome, one at a time. The process terminates when a stop codon is reached.
Answer:
The source of the oxygen in amino acids was water (H2O).
Explanation:
The Miller-Urey experiment was a chemical experiment in which the hypothetical conditions present on the early Earth were simulated. This experiment was conducted in order to test what kind of environment would be needed to allow life to begin. The experiment is considered to be the classic experiment on the origin of life. It was conducted in 1953 by two scientists; Stanley L. Miller and Harold C. Urey.
In this experiment Miller and Urey placed water (H2O), methane (CH4), ammonia (NH3) and hydrogen (H2) into an enclosed chamber. The chamber was set up to mimic the atmosphere of the early Earth, with a reducing environment and high amounts of energy (lightning storms and high temperatures). At the end of the experiment Miller and Urey observed the spontaneous synthesis of amino acids, life-essential compounds, and concluded that organic molecules needed for life could be formed from inorganic components.
Starting materials used in this experiment served as a source of different elements needed for synthesis of amino acids. The source of the element oxygen in amino acids was water (H2O) that was put inside the chamber.
The exchange takes place in the millions of alveoli in the lungs and the capillaries that envelop them. As shown below, inhaled oxygen moves from the alveoli to the blood in the capillaries, and carbon dioxide moves from the blood in the capillaries to the air in the alveoli. You can see more in wikipedia, or here: https://www.merckmanuals.com/home/lung-and-airway-disorders/biology-of-the-lungs-and-airways/exchanging-oxygen-and-carbon-dioxide
Answer:
2
Explanation:
I say 2 because water filtration systems are really not that hard to to clean and restore back to normal.
