Table of contents

1. Matter and Measurements4h 31m
2. Atoms and the Periodic Table5h 23m
3. Ionic Compounds2h 18m
4. Molecular Compounds2h 18m
5. Classification & Balancing of Chemical Reactions3h 17m
6. Chemical Reactions & Quantities2h 27m
7. Energy, Rate and Equilibrium3h 46m
8. Gases, Liquids and Solids3h 25m
9. Solutions4h 10m
10. Acids and Bases3h 29m
11. Nuclear Chemistry56m
BONUS: Lab Techniques and Procedures1h 38m
BONUS: Mathematical Operations and Functions47m
12. Introduction to Organic Chemistry1h 34m
13. Alkenes, Alkynes, and Aromatic Compounds2h 12m
14. Compounds with Oxygen or Sulfur1h 6m
15. Aldehydes and Ketones1h 1m
16. Carboxylic Acids and Their Derivatives1h 11m
17. Amines39m
18. Amino Acids and Proteins1h 51m
19. Enzymes1h 37m
20. Carbohydrates1h 41m
21. The Generation of Biochemical Energy2h 8m
22. Carbohydrate Metabolism2h 22m
23. Lipids2h 26m
24. Lipid Metabolism1h 45m
25. Protein and Amino Acid Metabolism1h 37m
26. Nucleic Acids and Protein Synthesis2h 54m

20. Carbohydrates

Disaccharides

GOB Chemistry

20. Carbohydrates

Disaccharides

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Multiple Choice

Which disaccharide forms a 1,1-glycosidic linkage?

Lactose

Maltose

Trehalose

Sucrose

Cellulose

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Verified step by step guidance

Understand what a 1,1-glycosidic linkage is: It is a type of covalent bond that connects two monosaccharide units through their anomeric carbons, which are the carbon atoms that were part of the carbonyl group in the open-chain form of the sugar.

Identify the structure of each disaccharide option: Lactose, Maltose, Trehalose, Sucrose, and Cellulose. Each of these disaccharides has a unique glycosidic linkage.

Lactose is composed of glucose and galactose with a β(1→4) linkage. Maltose consists of two glucose units with an α(1→4) linkage. Sucrose is made of glucose and fructose with an α(1→2) linkage. Cellulose is a polymer of glucose with β(1→4) linkages.

Trehalose is composed of two glucose molecules connected by an α,α-1,1-glycosidic bond, meaning both anomeric carbons are involved in the linkage.

Conclude that Trehalose is the disaccharide that forms a 1,1-glycosidic linkage, as it uniquely connects two glucose units through their anomeric carbons.