CHEM 210 MODULE 1 EXAM - WITH 100% CORRECT ANSWERS – DOWNLOAD FOR AN A+

Module 1 Exam - Requires Respondus LockDown Browser + Webcam: Biochemistry-2021-R. Austin 4/8/22, 10:16 PM CHEM 210 MODULE 1 EXAM - WITH 100% CORRECT ANSWERS – DOWNLOAD FOR AN A+ Question 27 5 / 5 pts (Short response) According to the Module, are smaller elements or large elements favored in biological molecules? Explain which one (smaller or larger) are preferred and give at least two examples of elements (smaller or larger) common in the biomolecules. Your Answer: In the biological molecules, smaller elements are favored and preferred as they can create stronger covalent bonds. Elements such as carbon and hydrogen. Smaller elements are preferred. These elements with smaller atomic shells are favored because they can form stable covalent bonds. Strong bonds form by significant overlap of atoms, such as carbon and hydrogen permitting them to share electrons. The bond that forms requires a substantial amount of energy to break, which allows the bonds to withstand insults, such as mechanical and thermal stresses. This bond strength is good news for living organisms. Stable bonds allow cells to form, hair to grow, and skin to protect against abrasion. These elements are common: H, C, O, N, P, S, and Cl. (Se is borderline). Larger elements tend to form ionic compounds–not covalent. Question 29 5 / 5 pts (Short response) How does organic chemistry differ from inorganic chemistry? Your Answer: Organic chemistry focuses on the study of chemical and physical properties of carbon. Whereas, inoganic chemistry focuses on the study of non-carbon elements. Organic chemistry is the study of carbon-based compounds. Inorganic chemistry is the study of all other elements, but carbon. There is no need to have separate sub-disciples for organic and inorganic chemistry, but for historical and organizational reasons, the difference exists. (Short response) Biochemists study the structure and functional relationships of biomolecules. According to the module, what are two other aspects of living organisms that biochemists study? Your Answer: Apart from structure and functional relationships of biomolecules, biochemists also study the communication within the organism as well as the chemical reaction of the organism. In the module, biochemists also study the chemical reactions of organisms (metabolism) and communication within and among organisms.