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Questions and Answers
Which disaccharide is formed by the condensation of glucose and fructose?
Which disaccharide is formed by the condensation of glucose and fructose?
- Sucrose (correct)
- Cellulose
- Maltose
- Lactose
What type of bond joins alpha glucose molecules to form glycogen?
What type of bond joins alpha glucose molecules to form glycogen?
- Peptide bond
- 1,6 glycosidic bond
- 1,4 glycosidic bond (correct)
- Hydrogen bond
Which polysaccharide is the main energy storage molecule in animals?
Which polysaccharide is the main energy storage molecule in animals?
- Glycogen (correct)
- Starch
- Amylose
- Cellulose
What type of bond joins beta glucose molecules to form cellulose?
What type of bond joins beta glucose molecules to form cellulose?
Which starch component has a large number of side branches, allowing for quick energy release?
Which starch component has a large number of side branches, allowing for quick energy release?
Benedict’s reagent is commonly used to test for the presence of which type of sugar?
Benedict’s reagent is commonly used to test for the presence of which type of sugar?
What type of glycosidic bonds join glucose molecules in amylose?
What type of glycosidic bonds join glucose molecules in amylose?
Which component of starch can be broken down simultaneously by many enzymes to release energy?
Which component of starch can be broken down simultaneously by many enzymes to release energy?
What type of glucose molecules compose cellulose in plant cell walls?
What type of glucose molecules compose cellulose in plant cell walls?
What test can be used to detect the presence of reducing sugars?
What test can be used to detect the presence of reducing sugars?
What is the function of cellulose in plant cells to counteract osmotic pressure?
What is the function of cellulose in plant cells to counteract osmotic pressure?
Which polysaccharide is coiled and compact, storing a lot of energy in a small space?
Which polysaccharide is coiled and compact, storing a lot of energy in a small space?
What type of bond is formed in a condensation reaction between monosaccharides to form polysaccharides?
What type of bond is formed in a condensation reaction between monosaccharides to form polysaccharides?
Which of the following is a storage polysaccharide in plants?
Which of the following is a storage polysaccharide in plants?
Which type of glucose is used as an immediate energy source by plants?
Which type of glucose is used as an immediate energy source by plants?
What substance can be used to detect the presence of reducing sugars like glucose in a solution?
What substance can be used to detect the presence of reducing sugars like glucose in a solution?
Which component of plant cells provides structural support and is made up mostly of cellulose?
Which component of plant cells provides structural support and is made up mostly of cellulose?
What is the main difference between amylose and amylopectin?
What is the main difference between amylose and amylopectin?
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Study Notes
Disaccharides
- Sucrose is formed by the condensation of glucose and fructose.
Polysaccharides
- Glycogen is the main energy storage molecule in animals.
- Amylopectin has a large number of side branches, allowing for quick energy release.
- Cellulose is composed of beta glucose molecules joined by beta 1,4 glycosidic bonds.
- Amylose is composed of alpha glucose molecules joined by alpha 1,4 glycosidic bonds.
Testing for Sugars
- Benedict's reagent is used to test for the presence of reducing sugars.
- Reducing sugars can be detected using a test for reducing sugars.
Plant Cell Structure and Function
- Cellulose provides structural support in plant cell walls and counteracts osmotic pressure.
- Starch is a storage polysaccharide in plants.
- Plant cells use glucose as an immediate energy source.
Additional Facts
- Glycogen is coiled and compact, storing a lot of energy in a small space.
- A condensation reaction between monosaccharides forms a glycosidic bond, forming polysaccharides.
- The main difference between amylose and amylopectin is that amylose is a straight chain, while amylopectin is branched.
- Cell walls are made up mostly of cellulose and provide structural support.
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