Podcast
Questions and Answers
What type of linkage allows cellulose to form long straight chains?
What type of linkage allows cellulose to form long straight chains?
- β(1→4) linkage (correct)
- γ(1→3) linkage
- β(1→6) linkage
- α(1→4) linkage
Why is cellulose considered water-insoluble?
Why is cellulose considered water-insoluble?
- Because of extensive intra-chain hydrogen bonding
- Presence of β(1→4) glycosidic linkage (correct)
- Lack of hydrogen bonding within the cellulose chains
- Due to the presence of α(1→4) glycosidic linkage
Which polysaccharide is often strengthened by lignin in cell walls?
Which polysaccharide is often strengthened by lignin in cell walls?
- Hemicellulose
- Pectin
- Amylose
- Cellulose (correct)
How does the structure of cellulose differ from that of amylose?
How does the structure of cellulose differ from that of amylose?
What is the role of hemicellulose in cell walls?
What is the role of hemicellulose in cell walls?
How is the structure of cellulose suited to its function?
How is the structure of cellulose suited to its function?
What distinguishes glycogen from amylopectin in terms of branch points?
What distinguishes glycogen from amylopectin in terms of branch points?
What distinguishes glycogen from starch in terms of compactness?
What distinguishes glycogen from starch in terms of compactness?
Why does cellulose contain only β(1→4) glycosidic linkages?
Why does cellulose contain only β(1→4) glycosidic linkages?
What is the primary function of chitin in organisms?
What is the primary function of chitin in organisms?
Which component is NOT typically found in plant cell walls aside from cellulose?
Which component is NOT typically found in plant cell walls aside from cellulose?
What distinguishes hemicellulose and pectins from cellulose in plant cell walls?
What distinguishes hemicellulose and pectins from cellulose in plant cell walls?
What is the major component of the hard exoskeletons of most arthropods and the cell walls of fungi?
What is the major component of the hard exoskeletons of most arthropods and the cell walls of fungi?
How is chitin different from cellulose at the chemical level?
How is chitin different from cellulose at the chemical level?
Which type of chitin exists as all parallel chains in nature?
Which type of chitin exists as all parallel chains in nature?
What function does chitin serve when used to make surgical thread?
What function does chitin serve when used to make surgical thread?
Cellulose primarily serves which function in nature?
Cellulose primarily serves which function in nature?
What type of linkage is found in cellulose between glucose monomers?
What type of linkage is found in cellulose between glucose monomers?
