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Plant Cell Wall Chemistry Quiz

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Questions and Answers

Which chemical modification is a strengthening material deposited in the cell walls of tracheids, vessels, fibers, and sclereids of vascular plants?

Deposition of further hemicellulose

Deposition of cutin or suberin

Deposition of further cellulose

Deposition of further lignin (correct)

Which color reaction is associated with cellulose cell walls?

Iodine shows no color with cellulose and blue with hemicellulose

Phloroglucinol + conc. HCl stains walls red

Chlor-zinc-iodine turns blue with cellulose and yellow with pectin substances (correct)

Chlor-zinc-iodine turns yellow with cellulose and blue with hemicellulose

What is the color change when Phloroglucinol + conc. HCl is used for identification of lignified walls?

Walls become yellow

Walls stained red (correct)

Walls turn blue

No color change

Which chemical modification consists of mixtures of highly polymerized fatt?

<p>Suberin and cutin</p> Signup and view all the answers

What chemical modification can undergo various chemical modifications that profoundly change its physical properties?

<p>The original cell wall</p> Signup and view all the answers

Plant Cell Wall Chemistry Quiz

Choose a study mode

Podcast

Questions and Answers

Which chemical modification is a strengthening material deposited in the cell walls of tracheids, vessels, fibers, and sclereids of vascular plants?

Which color reaction is associated with cellulose cell walls?

What is the color change when Phloroglucinol + conc. HCl is used for identification of lignified walls?

Which chemical modification consists of mixtures of highly polymerized fatt?

What chemical modification can undergo various chemical modifications that profoundly change its physical properties?

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