CHEM 120 Week 8 Lab Practical Online Quiz (Lab Practicum)

CHEM 120 Week 8 Exam 3 (Units 5, 6, and 7)

QUESTIONS AND ANSWERS

GROUP 1: LiNa Ke RbCs Farrar (Li Na K Rb Cs Fr) Group 1 is known as alkali metals. It includes Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Ru), Ceasium (Cs), and Francium (Fr). GROUP 2: Beta Mange Car Scooter Baap Razi (Be Mg Ca Sr Ba Ra) Group 2 is known as alkaline earth metals. It includes Beryllium (Be), Magnesium (Mg), Calcium (Ca), Strontium (Sr), Barium (Br), and Radium (Ra). GROUP 13: B-Al Gaya Insan Takla OR B-Al Ganesh In Titwala OR Baingan Aloo Gajar In Thal...

Functions of The Respiratory System ▪ To allow gases from the environment to enter the bronchial tree through inspiration by expanding the thoracic volume. ▪ To allow gas exchange to occur at the respiratory membrane, so that oxygen diffuses into the blood while carbon dioxide diffuses into the bronchial tree. ▪ To permit gases in the lungs to be eliminated through expiration by decreasing the thoracic volume. General anatomy of The respiratory System ▪ Consists of a tube...

OL Lab 12: Introduction to Food Macromolecules Learning Objectives • Identify the types of macromolecules found in food • Identify the structure of carbohydrates, proteins, and lipids • Detec t macromolecules in food samples Introduction Macromolecules are very large molecules created by the polymerization of small units called monomers. Most of the macromolecules are present in everyday life, for instance in food. Learn about biological macromolecules There are several types of biological...

OL Lab 13: Protein Synthesis Part 2: Report and Reflection Purpose: Describe in complete sentences and in your own words, the purpose of this experiment. The purpose of this experiment is to lear n about the protein synthesis process. The purpose was to also learn about the devices used to test samples of urine in the lab, to decide whether illicit drugs were being used by athletes to enhance their performance. Observations: Record three observations from the simulation. I learned that ACTG is f...

CHEM120 Week 7 Assignment: Biochemistry Part 2 and Flow of Genetic Information – Download To Score An A+ Laboratory 11: DNA, mRNA and Polypeptide Learning Objectives: • Learn about nuclei c acids • Predict the sequence of a complementary strand of DNA based on the sequence of DNA • Predict the sequence of mRNA based on the sequence of DNA • Predict the sequence of a • polypeptide based on the sequence of mRNA Information stored in DNA (genes) is responsible for all our bodily functio...

Week 6 Discussion: Radiation Hello everyone, For this weeks discussion I will do option 2 on the topic of Uranium- 238. Uranium-238 is the most common isotope of Uranium yielding 99.2 percent wit hin natural uranium. Uranium- 238 has 92 protons and 146 neutrons. It was also recorded that it has a half- life of 4.5 billion years. a. Uranium- 238 is an ionizing radiation. b. Uranium- 238 gives off alpha particles which are not effectively penetrating so s long a its rays are found outside of the b...

Initial Post Instructions The Discussions in this course are set up deepen your understanding of the material as you make real world connections and employ creative thinking. To get the most from the se discussions, full engagement is expected on the part of the student. Be sure to stop by the discussion section frequently, not only to post, but to read the postings of your peers and instructor. Engaging with your peers and learning together is key to this experience. For your initial post, choo...

CHEM120 Week 6 Discussion: Radiation – Radioactive Isotope: Cobalt-60 (Option 1) Option 1 Cobalt-60 a. What type(s) of radioactive decay does your isotope undergo? Radioactive decay occurs when an unstable nucleus changes into a stable nucleus by emitting radiation. The cobalt-60 isotope undergoes a beta decay and produces gamma rays as it decays. The half-life for cobalt-60 is 5.27 years. This is how long the decaying process takes to get to Nickel-59, a more stable isotope ("Cancer Therapy,...

OL Lab 11: Carbohydrates: The sugars that feed us CHEM120 Week 6 Virtual Lab: Carbohydrates Part I and Part II- Download To Score An A+ Learning objectives • Explain the molecular structure of sugars and polysaccharides • Explain digestion and appreciate the complexity of the human body • Experiment with different foods and measure their impact on the blood sugar level Introduction Most people are familiar with carbohydrates, especially when it comes to what we eat. For example, to lose we...