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| 1 | |
The four kinds of organic macromolecules are |
| | A) | hydroxyls, carboxyls, aminos, and phosphates. |
| | B) | proteins, carbohydrates, lipids, and nucleic acids. |
| | C) | ATP, ADP, DNA, and RNA. |
| | D) | carbon, hydrogen, oxygen, and nitrogen. |
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| 2 | |
Organic molecules are made up of monomers. Which of the following is not considered a monomer of organic molecules? |
| | A) | amino acids |
| | B) | simple sugars |
| | C) | polypeptides |
| | D) | nucleotides |
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| 3 | |
Your body is filled with many types of proteins. Each type has a distinctive sequence of amino acids which determines both its specialized ___________ and its unique ___________. |
| | A) | number, weight |
| | B) | length, mass |
| | C) | structure, function |
| | D) | charge, pH |
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| 4 | |
A peptide bond forms |
| | A) | by the removal of a water molecule. |
| | B) | by a dehydration reaction. |
| | C) | between two amino acids. |
| | D) | All of these. |
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| 5 | |
Nucleic acids |
| | A) | are the energy source for our bodies. |
| | B) | act on other molecules, breaking them apart or building new ones, to help us function. |
| | C) | are only found in a few, specialized locations within the body. |
| | D) | are information storage devices found in every cell in the body. |
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| 6 | |
The two strands of a DNA molecule are held together through hydrogen bonds between nucleotide bases. Which of the following best describes this base pairing? |
| | A) | Adenine forms hydrogen bonds with thymine. |
| | B) | Adenine forms hydrogen bonds with uracil. |
| | C) | Cytosine forms hydrogen bonds with thymine. |
| | D) | Guanine forms hydrogen bonds with adenine. |
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| 7 | |
Carbohydrates are used for |
| | A) | structure and for energy. |
| | B) | information storage. |
| | C) | fat storage and for hair. |
| | D) | hormones and for enzymes. |
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| 8 | |
Which of the following carbohydrates is not found in plants? |
| | A) | glycogen |
| | B) | cellulose |
| | C) | starch |
| | D) | All are found in plants. |
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| 9 | |
A characteristic common to all lipids is |
| | A) | that they contain long chains of C-H bonds. |
| | B) | that they are insoluble in water. |
| | C) | that they have a glycerol backbone. |
| | D) | All of these are characteristics of all lipids. |
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| 10 | |
Lipids are used for |
| | A) | motion and defense. |
| | B) | information storage. |
| | C) | energy storage and for some hormones. |
| | D) | enzymes and for some hormones. |
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