Question

test name: bio_fsq02_u01_fy26
test id: 3645054
student: mackenzie harris
class:
date: 00 - 2 - 15
read each question carefully and decide which is the best answer. fill in the bubble with the letter of the correct answer on your answer sheet.

1. which building blocks are correctly matched to the macromolecule they form?

a amino acids make proteins.
b glucose molecules make lipids.
c nucleotides make carbohydrates.
d fatty acid chains make nucleic acids.

1. which of the following statements illustrates why carbon atoms are so important in living organisms?

a carbon atoms contain large stores of energy.
b carbon is found in most inorganic compounds.
c carbon atoms are polar, which allows them to dissolve many compounds.
d carbon is able to bond to many other atoms to form large and complex molecules.

1. which of the following groups of macromolecules are composed of three fatty acid chains bonded to a glycerol?

a lipids
b proteins
c nucleic acids
d carbohydrates

Explanation:

1. Amino acids are the building - blocks of proteins. Glucose makes carbohydrates, nucleotides make nucleic acids, and fatty acid chains make lipids.
2. Carbon's ability to form multiple covalent bonds with various atoms allows for the formation of large and complex organic molecules essential for life. It has moderate energy storage, is in organic compounds, and is non - polar.
3. Lipids called triglycerides are composed of three fatty acid chains bonded to a glycerol molecule. Proteins are made of amino acids, nucleic acids of nucleotides, and carbohydrates of monosaccharides like glucose.

Answer:

1. A. Amino acids make proteins.
2. D. Carbon is able to bond to many other atoms to form large and complex molecules.
3. A. lipids