Biochemical Building Blocks & Fischer and Haworth Projections: Crash Course Organic Chemistry #48
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Science
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Practice Problem
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Hard
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How was organic chemistry initially defined in the 1800s?
The study of carbon-based compounds synthesized in laboratories.
The study of molecules isolated exclusively from living organisms.
The study of all compounds containing carbon and hydrogen.
The study of complex polymers and medicines.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the general formula for most carbohydrates, where 'm' and 'n' can be the same or different integers?
Cm(H)n(O)n
Cm(H2O)n
CnH2nOn
CmH2nO
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Carbohydrates can be classified based on their functional group. What are the two primary functional groups used for this classification?
Carboxylic acids and esters
Alcohols and ethers
Aldehydes and ketones
Amines and amides
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When converting a D-sugar Fischer projection to a Haworth projection, how does the CH2OH group typically orient itself?
It points down, below the ring.
It points up, above the ring.
Its orientation depends on the specific anomer (alpha or beta).
It is always drawn on the right side of the ring.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When drawing the Haworth projection for alpha-D-glucose, what is the orientation of the hydroxyl group on carbon 1 relative to the CH2OH group on carbon 5?
It points in the same direction as the CH2OH group.
It points in the opposite direction to the CH2OH group.
Its orientation is random and not fixed.
It is always axial.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary difference between a nucleoside and a nucleotide?
A nucleoside contains a phosphate group, while a nucleotide does not.
A nucleotide contains a phosphate group, while a nucleoside does not.
A nucleoside contains a nitrogenous base, while a nucleotide does not.
A nucleotide contains a carbohydrate, while a nucleoside does not.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the sugar component of DNA differ from that of RNA?
DNA's sugar has an extra oxygen atom compared to RNA's sugar.
RNA's sugar has an extra oxygen atom compared to DNA's sugar.
DNA's sugar is a 6-membered ring, while RNA's sugar is a 5-membered ring.
RNA's sugar is a 6-membered ring, while DNA's sugar is a 5-membered ring.
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