11 Questions
Which atom in the sugar molecule is connected to the phosphorus atom in a phosphate group?
5-carbon
What is the main difference between deoxyribose and ribose sugars?
Deoxyribose has one less oxygen atom.
Where is the nitrogen base connected within a nucleotide?
5-carbon
In DNA, which base replaces thymine in RNA?
Uracil
How are nucleotides connected to form the sugar-phosphate backbone in DNA or RNA?
Phosphodiester bond between 5-carbon and phosphate group
What are the three main components of a nucleotide?
Nitrogenous base, pentose sugar, and phosphate group
Which of the following statements about cells is incorrect?
All living things consist of only one cell.
Which of the following is a purine nitrogenous base found in both DNA and RNA?
Guanine
Which of the following statements about prokaryotic cells is correct?
They include bacteria and archaea.
What is the difference between the sugar components of DNA and RNA?
DNA has deoxyribose, while RNA has ribose.
What is the main difference between eukaryotic and prokaryotic cells?
Eukaryotic cells have a nucleus, while prokaryotic cells do not.
Explore the fundamental concepts of the cell as the basic unit of living organisms, its structure, function, and classification into prokaryotic and eukaryotic cells. Understand how cells are the building blocks of all living things.
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