Question

name____ period____ test version 2
topic 1.5 macromolecule test
multiple choice

1. dna and rna are types of

a. proteins b. lipids c. carbohydrates d. nucleic acids

1. enzymes are one type of

a. proteins b. lipids c. carbohydrates d. nucleic acids

1. glycerol and fatty acids are monomers of

a. proteins b. lipids c. carbohydrates d. nucleic acids

1. sugars, starches, and cellulose are all types of

a. proteins b. lipids c. carbohydrates d. nucleic acids

1. we obtain all of the macromolecules from the food we eat except for

a. carbohydrates b. proteins c. lipids d. nucleic acids

1. if available, the body will always digest which macromolecule for energy first?

a. carbohydrates b. proteins c. lipids d. nucleic acids

1. an organic compound is a compound that contains

a. hydrogen b. nitrogen c. carbon d. oxygen

1. two of the four principle classes of organic compounds are proteins and nucleic acids.

what is the relationship between proteins and nucleic acids?
a. nucleic acids use proteins for energy
b. nucleic acids are a subset of proteins
c. proteins are long polymers of nucleic acids
d. nucleic acids contain the information to make proteins

1. in living organisms, lipids function mainly as

a. sources of stored energy and transmitters of genetic information
b. sources of stored energy and components of cellular membranes
c. transmitters of genetic information and catalysts of chemical reactions
d. catalysts of chemical reactions and components of cellular membranes

1. carbohydrates and lipids have many carbon - hydrogen bonds; therefore, they both

a. store energy in these bonds
b. are easily dissolved in water
c. dissolve only in vinegar
d. exist only in cells of plants

1. base your answer to the following question on the graph above and on your knowledge of biology. what is the optimum ph for the action of intestinal protease?

a. 5 b. 8 c. 10 d. 12

1. atp (adenosine triphosphate) stores energy for cells to use in the bonds between its

a. sugars b. nucleotides c. phosphates d. amino acids

1. plants play an important role in the carbon cycle by producing carbohydrates. which of the following organelles enables plants to make carbohydrates through the process of photosynthesis?

a. cell wall b. mitochondria c. nucleus d. chloroplasts

1. identify the monomer below.

chemical structure of a molecule
a. fatty acid b. amino acid c. nucleotide d. monosaccharide

1. identify the monomer below.

chemical structure of a molecule
a. fatty acid b. amino acid c. nucleoside d. monosaccharide

1. identify the monomer below.

chemical structure of a molecule
a. fatty acid b. amino acid c. nucleotide d. monosaccharide

1. identify the monomer below.

chemical structure of a molecule
a. fatty acid b. amino acid c. nucleotide d. monosaccharide

Explanation:

1. DNA and RNA are nucleic acids. They store and transmit genetic information.
2. Enzymes are proteins that act as biological catalysts.
3. Glycerol and fatty - acids are the building blocks of lipids.
4. Sugars, starches, and cellulose are carbohydrates which are energy - sources and structural components.
5. Nucleic acids are not typically obtained directly from food in a usable form like other macromolecules.
6. Carbohydrates are the body's first choice for energy due to their quick - release nature.
7. Organic compounds contain carbon.
8. Nucleic acids (DNA and RNA) carry the genetic information to make proteins.
9. Lipids function as energy storage and components of cell membranes.
10. Carbohydrates and lipids store energy in their carbon - hydrogen bonds.
11. From the graph, the optimum pH for intestinal protease is 8.
12. ATP stores energy in its phosphate bonds.
13. Chloroplasts enable plants to make carbohydrates through photosynthesis.
14. The given structure is a monosaccharide.
15. The given structure is a nucleotide.
16. The given structure is an amino acid.
17. The given structure is a fatty acid.

Answer:

1. D. Nucleic Acids
2. A. Proteins
3. B. Lipids
4. C. Carbohydrates
5. D. Nucleic acids
6. A. Carbohydrates
7. C. Carbon
8. D. Nucleic acids contain the information to make proteins
9. B. Sources of stored energy and components of cellular membranes
10. A. Store energy in these bonds
11. B. 8
12. C. Phosphates
13. D. Chloroplasts
14. D. Monosaccharide
15. C. Nucleotide
16. B. Amino acid
17. A. Fatty acid