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- 1. Multiple Choice
The diagram shows the general structure of an amino acid. Which type of molecule is formed from amino acids?lipidsproteinscarbohydratesnucleic acids - 2. Multiple ChoiceYou are analyzing a compound in the laboratory. You find that it is made up of carbon, hydrogen, and oxygen in a ratio of two hydrogen atoms for each carbon atom. How will you classify the compound?lipidproteincarbohydratenucleic acid
- 3. Multiple ChoiceFats, oils and cholesterol are all types of what?cell membraneshormones
hormoneslipidsfatty acids - 4. Multiple ChoiceRNA and DNA are which type of macromolecules?carbohydratelipidnucleic acidprotein
- 5. Multiple ChoiceMany plants have waxy coatings on some surfaces. This coating reduces water loss because it is not water-permeable. This waxy coating is which of the following types of organic molecule?proteincarbohydratenucleic acidlipid
- 6. Multiple ChoiceA sugar, a phosphate group, and a nitrogen base form the building blocks of which organic compound?carbohydrateslipidsnucleic acidsproteins
- 7. Multiple ChoiceThe human body maintains a temperature of around 98.6 degrees at all times. Enzymes are involved in almost every chemical reaction in the body. Which of the following describes the connection between these two statements?Enzymes function best at a specific temperature.The body needs to be warm to prevent hypothermia.The body is kept relatively warm to prevent too much enzyme action.There is no connection between the two statements.
- 8. Multiple ChoiceLike complex carbohydrates, proteins are macromolecules that serve many functions and can be chemically broken down and restructured. Both proteins and complex carbohydrates are which of the following?polymers of smaller subunitssequence of sugarslipids of large moleculesnucleotides of DNA
- 9. Multiple ChoiceIn living organisms, lipids function mainly as:Sources of stored energy and transmitters of genetic informationSources of stored energy and components of cellular membranesTransmitters of genetic information and catalysts of chemical reactionsCatalysts of chemical reactions and components of cellular membranes
- 10. Multiple ChoiceWhat is the function of macromolecule subunit below?energycatalyststores genetic informationcomposes the majority of the cell membrane
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