Unlike carbohydrates and fats, proteins contain what element?
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Question 2
2.
A macromolecule is insoluble in water and made mostly of carbon and hydrogen atoms. What is this molecule?
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Question 3
3.
Students were given a list of seven elements and asked to identify the four elements that are the most abundant in macromolecules. Which table correctly identifies the four most abundant elements in macromolecules.
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Question 4
4.
Which correctly shows the elemental ratio of carbohydrates?
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Question 5
5.
A store sells a variety of sets for building molecular models. The sets are described by the diagram below.
Which change to one of the kits would make it more useful for modeling proteins?
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Question 6
6.
You are given 4 test tubes containing purified biological macromolecules. The test tubes are unlabeled except for a number between 1 and 4. You are told that one test tube contains a protein, one contains a lipid, one contains a carbohydrate, and one contains a nucleic acid. You then perform some tests on the macromolecules and collect the following information.
Test tubes #2 and #4 contain nitrogen, but the other tubes do not
Test tube #3 is not soluble in water, but the other tubes are soluble in water
The contents of tube #1 can be broken down into monomer subunits of C, H, and O in a 1:2:1 ratio
Test tube #4 contains phosphorus, but the other tubes do not
Based on the data you collected choose the correct identity of each test tube.
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Question 7
7.
Which of the following is the monomer of a protein?
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Question 8
8.
In addition to serving as waterproof coverings or as parts of biological membranes, lipids:
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Question 9
9.
The structural formulas shown below represent parts of two different complex macromolecules. Molecules 1 and 2 differ in their overall structure.
Due to the differences in structure, each of these molecules most likely...
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Question 10
10.
Athletes are often concerned with the question of how much protein they need in their diets because of the requirement of growing muscles for protein. Just as muscles need the basic building block of protein, protein itself has basic building blocks. Which of the following are the basic building blocks of protein?