Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Nucleotides
It is an organic molecule made up of three basic components- a nitrogenous base, phosphate,and pentose sugar. The nucleotides are important for metabolic reactions andthe formation of DNA (deoxyribonucleic acid) and RNA (ribonucleic acid).
Nucleic Acids
Nucleic acids are essential biomolecules present in prokaryotic and eukaryotic cells and viruses. They carry the genetic information for the synthesis of proteins and cellular replication. The nucleic acids are of two types: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). The structure of all proteins and ultimately every biomolecule and cellular component is a product of information encoded in the sequence of nucleic acids. Parts of a DNA molecule containing the information needed to synthesize a protein or an RNA are genes. Nucleic acids can store and transmit genetic information from one generation to the next, fundamental to any life form.
Question
For this I explained what it was but it wasn’t right so I have to explain why it’s wrong and get the right one for this and explain also how it’s right
My answer: it’s a glycosidic bond because the bonds formed between two monosaccharides and it is typically formed between carbon - 1 of one monosaccharide and carbon -4 of the other. The condensation of water molecules is required for the formation of a glycosidic bond and either linkage the two monosaccharides units in disaccharide.
This was a bad response for my homework because I had to identify the bond in this molecule and I tried saying it was glycosidic but I don’t know what else would be a correct one other than that so it’s been tricky.
Transcribed Image Text:**Educational Resource: Understanding the Chemical Structure of Sucrose**
**Chemical Structure of Sucrose:**
The image provided is a chemical structure diagram of sucrose, which is a common disaccharide composed of glucose and fructose units.
**Diagram Explanation:**
1. **Component Monosaccharides:**
- The diagram depicts sucrose as a compound formed by the combination of two monosaccharides: glucose and fructose.
- The structure on the left is a glucose molecule.
- The structure on the right is a fructose molecule.
2. **Linkage:**
- Glucose and fructose are linked together by a glycosidic bond.
- Specifically, the bond is an α(1→2) glycosidic bond.
- The oxygen bridge (O) indicates the point of connection between the two sugar molecules.
3. **Chemical Groups:**
- Each molecule (ring structure) has several hydroxyl (OH) groups attached to specific carbon atoms.
- The carbon atoms in the glucose unit are numbered starting from the rightmost carbon in the ring, moving clockwise.
- The carbon atoms in the fructose unit are similarly numbered but starting counter-clockwise.
**Hydroxyl Groups and Hydration:**
- Sucrose is highly soluble in water due to these hydroxyl groups.
- The molecule participates in hydrogen bonding with water molecules, which contributes to its solubility.
**Educational Points:**
1. **Identification of Functional Groups:**
- Understanding where hydroxyl groups are located is crucial for comprehending the solubility properties of sucrose.
2. **Formation of Glycosidic Bonds:**
- Highlighting the formation of glycosidic bonds explains how two monosaccharides come together to form a disaccharide.
3. **Sugar Nomenclature:**
- Clarifies how to identify glucose and fructose based on their unique structures within the sucrose molecule.
**Key Takeaways:**
- Sucrose is a disaccharide formed from glucose and fructose.
- The glycosidic bond in sucrose is an α(1→2) link, connecting the two sugars.
- The presence of multiple hydroxyl groups makes sucrose highly soluble in water.
This detailed understanding of sucrose’s chemical structure is pivotal for studies in biochemistry, molecular biology, and nutrition science.
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