Questions and Answers
Which of the following macromolecules are often referred to as sugars? (Select all that apply)
What common macromolecule is Omega-3 Fatty Acid classified as?
Organic molecules are typically identified by the presence of _____ bonds.
Carbon-Hydrogen
DNA includes 3 nucleic acid subgroups referred to as nucleotides.
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In addition to ionic bonds and covalent bonds, polar molecules can also form a third type of bond called hydrogen bonds.
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For the most part, Lipids are polar.
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Which of the following describes H2O, NaCl, CO2, and HCl?
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Besides DNA, another nucleic acid is ____.
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The four common macromolecules used by all living organisms are lipids, proteins, carbohydrates, and fats.
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The carbohydrate monosaccharide subunit most commonly used for energy is ____.
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Study Notes
Macromolecules
- Carbohydrates are often referred to as sugars and serve as a primary source of energy.
- Omega-3 Fatty Acid is classified as a lipid, a type of macromolecule important for cell membranes and energy storage.
Organic Molecules
- Organic molecules are primarily identified by the presence of carbon-hydrogen bonds, a key feature distinguishing them from inorganic molecules.
Nucleic Acids
- DNA does not include three subgroups of nucleic acids; it is made of four types of nucleotides (adenine, thymine, cytosine, guanine).
- RNA is a significant nucleic acid in addition to DNA, playing a crucial role in protein synthesis.
Bonds
- Polar molecules can form hydrogen bonds, in addition to ionic and covalent bonds, contributing to various biological processes.
- Lipids, typically non-polar, do not usually have polar properties, resulting in their ability to form cellular membranes.
Inorganic vs. Organic Molecules
- H2O, NaCl, CO2, and HCl are all classified as inorganic molecules, lacking carbon-hydrogen bonds.
- Common macromolecules used by living organisms include lipids, proteins, carbohydrates, and nucleic acids, not fats.
Energy Sources
- Glucose is the most commonly used carbohydrate monosaccharide for energy in living organisms.
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Description
This quiz covers essential concepts in macromolecules, including carbohydrates, lipids, nucleic acids, and the differences between organic and inorganic molecules. Test your understanding of the structures, functions, and types of bonds that contribute to biological processes. Perfect for students studying biology at any level.
