1. Simple sugars are bonded together to form which of the following important groups of biological molecules?
Answer: C
Simple sugars are bonded together to form carbohydrates.
Carbohydrates are formed when simple sugars, also known as monosaccharides, are chemically bonded together. This process creates larger molecules like disaccharides and polysaccharides, which are essential for various biological functions.
A) Proteins
Proteins are composed of amino acids linked by peptide bonds. While they are crucial biological molecules, they are not formed from simple sugars and therefore do not represent the bonding of monosaccharides.
B) Lipids
Lipids are primarily made up of fatty acids and glycerol, not from simple sugars. Although they play vital roles in cellular structure and energy storage, they do not involve the bonding of sugars.
C) Carbohydrates
Carbohydrates are indeed formed when simple sugars are linked together through glycosidic bonds. This group includes sugars and starches, which serve as important energy sources and structural components in living organisms.
D) Nucleic acids
Nucleic acids, such as DNA and RNA, are composed of nucleotides, which are made up of a sugar, phosphate group, and nitrogenous base. They do not derive from the bonding of simple sugars alone but include sugars as part of their structure.
Conclusion
Carbohydrates are the correct answer because they are the specific group of biological molecules that result from the bonding of simple sugars. Other options, such as proteins, lipids, and nucleic acids, do not involve this process and serve different biological functions, thereby confirming that carbohydrates are the primary molecules formed from monosaccharides.