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A comprehensive set of questions and answers covering various aspects of chemistry, including biomolecules, functional groups, and properties of carbon. it's suitable for students studying introductory chemistry at the university or high school level. The questions test understanding of key concepts and terminology, making it a valuable resource for exam preparation and self-assessment.
Typology: Exams
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3 / 3 pts True or False: According to the Module, a compound with a molecular mass of 3,000 g/mol is considered a macromolecule. FALSE True or False: Biomolecules can have only two functional groups. FALSE True or False: The following functional group is an amide. FALSE
3 / 3 pts True or False: In a eukaryotic cell, the organelles called peroxisomes serve the purpose of digesting macromolecules. FALSE
Na Br
3 / 3 pts Question 8
is a functional group found in carbohydrates. Esters Thiols Carboxylic acids Alcohols Amines ALCOHOLS The following functional group is an example of.
3 / 3 pts complex Quasimer complex SUPRAMOLECULAR COMPLEX
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3 / 3 pts An organic compound with this structure, C=C, contains a functional group. Alkane Alkene Alkyne Alcoho l Both b and d ALKENE Scientists refer to as the “super glue” of the chemistry. C Co Na N O C What energy molecule is produced via respiration? ATP Creatin e DNA RNA mitochondria ATP
0 / 3 pts a. 0.1 inch b. 1 nm c. 10 nm d. 10 μm e. 10 cm a. b. c. d. e. D. 10um For butane, there are carbon and hydrogen atoms. A. 4, 8 B. 4, 10 C. 8, 4 D. 8, 10 E. Both b and d B. 4,
3 / 3 pts For an organic compound, which structure is the most efficient to draw? Condense
d Kekule’
3 / 3 pts INORGANIC CHEMISTRY The functional group was NOT discussed in this module.
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3 / 3 pts Alcohol Amine Aromati c Thiol All of these were discussed. ALL OF THESE WERE DISCUSSED Which number would be closest to the approximate number of ribosomes in an E. coli cell? A. 1 B. 25 C. 250 D. 25, E. Both c and d D. 25,
3 / 3 pts Which of the following would most likely have a cell wall? Marigold flower cells Deer cells Heart cells Human red blood cells All of the above MARIGOLD FLOWER CELLS Eukaryotes have molecules that provide a protective structure. This network, which is found in all eukaryotes, is called the.
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(Short response) Explain the common similarity in all prokaryotic and eukaryotic cells. Explain the similarity in at least two sentences. The fundamental similarity is that each cell type has a plasma membrane that separates life from non-life. The plasma membrane acts as a barrier to most molecules but does have proteins that permit select molecules to cross via proteins (transporters). The plasma membrane permits the cell to have a different composition of molecules inside the cell than out and defines a space for life to occur.
5 / 5 pts (Short response) Would a scientist be more likely to find an element such as O in a biomolecule, or W? Explain which she would more likely find in a biological molecule and give specific physical/chemical properties. She would more likely find O. Smaller elements are preferred. In the case of O, it is found in water, so it would be highly concentrated. Smaller 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. Larger elements, such as W, tend to form ionic compounds–not covalent.
5 / 5 pts (Short response) Describe at least three properties of carbon that permit it to be the basis of life.
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5 / 5 pts (Short response) What the definition of inorganic chemistry? How does it differ from organic chemistry? Inorganic chemistry is the study of all other elements, but carbon. Organic chemistry is the study of carbon-based compounds both in living and non- living organisms. 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 communication within and among organisms. According to the module, what are two other aspects of living organisms that biochemists study? In the module, biochemists also study the structure and function of biomolecules and the chemical reactions of organisms.
