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CHEM 210 MODULE 1 PROBLEM SET 202 5 -
2026 (PORTAGE LEARNING). QUESTIONS WITH
CORRECT ANSWERS. GRADED A+
What are three ways that biochemists study biological organisms? Biochemists study 1) the relationship between structure and function of biomolecules, 2) chemical reactions of organisms (metabolism), and 3) communication within and among organisms. What is the definition of biochemistry? Often referred to as the chemistry of life, biochemistry asks how the remarkable properties of organisms relate to their molecules. What is another name for firefly? lightning bug Is Li an element common in biological organisms?
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No. See Figure 1.3 for the common elements.
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0 / 0 pts False. Smaller elements tend to make the strongest bonds due to significant overlap. Name three bulk elements. Name three trace elements. Bulk elements (three of these): H, C, N, O, Na, P, S, Cl, K, and Ca Trace elements: Mg, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Se, Mo, I, and W. The following statement is incorrect. Rewrite the statement to be correct. Statement: Organic chemistry is the study of metal compounds, while inorganic chemistry is the study of carbon compounds. Organic chemistry is the study of carbon-based compounds, while inorganic chemistry is the study of all other compounds, including metals, minerals, and other non-organic compounds. Is H 2 O an organic molecule? How about CO 2? C 100 H 202? Water is not organic; it does not contain carbon. Both CO 2 and C 100 H 202 are organic compounds. The next row of Table 1 would be the 6 - carbon alkane, hexane. Write out its chemical formula and condensed formula.
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chemical formula: C 6 H 14 Condensed formula: CH 3 CH 2 CH 2 CH 2 CH 2 CH 3 On your own paper, draw the Kekule structures and line-bond formulas for both butane and hexane. When you have drawn the structures, enter a note in the answer box indicating you have done so (e.g., “I completed these drawings.” Or “I drew the structures for butane and hexane.”) Your drawings should appear as shown below. How are the aldehyde and ketone functional groups similar? Different?
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Refute. While retinal does indeed contain alkenes, it does not have a ketone. Carbon- carbon double bonds characterize the functional group known as alkenes. Several double bonds are present in the retinal, including one in the ring on the left and along the long carbon chain. On the other hand, a ketone is not present in retinal. A ketone is a C=O present with the C attached to two other carbon atoms. This group is not present in the compound, but an aldehyde is present. Aldehydes contain a C=O bond at the end of the carbon chain, which is present. Since the C=O is at the end of the chain, the C atom has an H bonded to it on one side and a C atom on the other. A cell wall is a combination of carbohydrates and proteins. What level of organization would this indicate and why? Supramolecular complex. A cell wall is a combination of two types of macromolecules to form a larger complex (through non-covalent interactions). What is the monomer of proteins, carbohydrates, and DNA? The protein monomer is an amino acid, a monosaccharide is the monomer for carbohydrates, and a nucleotide is the monomer for DNA.
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How are prokaryotes and eukaryotes different? (State your answer in two or more complete sentences.) While they are both cells types, prokaryotes have a simple structure with no organelles present. Eukaryotes have a true nucleus and organelle structures. As a result, the eukaryotes are also considerably larger than prokaryotes. How are Bacteria and Archaea different? (State your answer in two or more complete sentences.) Bacteria and Achaea are both simple cells with no organelle structure, and they lack a true nucleus. Archaea live in extreme conditions, such as hot springs and in the artic; they are thought to be more closely related to prokaryotes. What is the function of mitochondria, lysosomes, and vacuoles? Your Answer: The mitochondria is the powerhouse of the cell responsible for producing ATP. It
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