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Questions and Answers
Which statement accurately describes fibrous proteins?
Which statement accurately describes fibrous proteins?
- They are composed of a single sugar unit.
- They are usually soluble in water. (correct)
- They are primarily structural proteins.
- They have a compact, ball-like shape.
What distinguishes glycerol from sphingosine?
What distinguishes glycerol from sphingosine?
- Glycerol is a trihydric alcohol. (correct)
- Sphingosine contains three OH groups. (correct)
- Glycerol is synthesized from serine.
- Sphingosine is synthesized from glucose.
Which characteristic is true for polysaccharides?
Which characteristic is true for polysaccharides?
- They are typically white in color. (correct)
- They consist of one sugar unit. (correct)
- They are usually colorless.
- They have a nutritional value by converting to glucose.
What is a characteristic of globular proteins?
What is a characteristic of globular proteins?
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Which of the following statements is incorrect regarding monosaccharides?
Which of the following statements is incorrect regarding monosaccharides?
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Study Notes
Types of Proteins
- Fibrous proteins are insoluble in water and provide structural support.
- Examples of fibrous proteins include collagen and elastin.
- Globular proteins are partly soluble in water, with functions primarily not related to structure.
- Enzymes are common examples of globular proteins.
- Fibrous proteins exhibit a long, rod-shaped 3D structure.
- Globular proteins have a compact, ball-like shape with irregular surfaces.
Fatty Alcohols
- Glycerol is a trihydric alcohol, possessing three hydroxyl (OH) groups.
- Glycerol is also known as glycerine.
- It is synthesized from glucose in the body.
- Glycerol can form esters with fatty acids, important in lipid formation.
- It serves nutritional functions by being converted into glucose and phospholipids.
- Sphingosine is a monohydric alcohol, containing one hydroxyl group.
- It plays a role in the structure of sphingolipids.
- Sphingosine is synthesized from serine and palmitic acid.
Mono and Polysaccharides
- Monosaccharides are colorless and consist of a single sugar unit.
- Polysaccharides are white and made up of multiple sugar units.
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Description
Test your knowledge on the two major types of proteins: fibrous and globular, and explore the properties of fatty alcohols like glycerol and sphingosine. This quiz covers essential concepts in biochemistry and their applications in biological structures.
