Nucleotide Chemistry and Biochemical Functions Quiz

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What are the building units of nucleic acids?

Nucleosides and nucleotides (correct)

Ribose and deoxyribose

Nitrogenous bases and phosphate group

Pentose sugar and phosphate group

Which nitrogenous base is present in both DNA and RNA?

Cytosine

Thymine

Adenine (correct)

Guanine

What is the composition of a nucleotide?

Adenine, guanine, cytosine, thymine, and uracil

Purine base and pyrimidine base

Nitrogenous base, phosphate group, and pentose sugar (correct)

Ribose sugar, deoxyribose sugar, and phosphate group

Which type of nucleic acid contains thymine?

Deoxyribonucleic acid (DNA) Signup and view all the answers

What are the two main types of nucleic acids?

DNA and RNA Signup and view all the answers

Which nitrogenous base is present in RNA but not in DNA?

Uracil Signup and view all the answers

Which type of nucleotide contains a base, sugar, and phosphate?

Deoxyguanosine monophosphate Signup and view all the answers

Which nucleotide serves as the active methyl donor?

Adenosine Signup and view all the answers

What is the function of cAMP and cGMP nucleotides?

Serve as 2nd messenger for many hormones Signup and view all the answers

Which base is present in RNA only?

Uracil Signup and view all the answers

What type of bond links the sugar with the base in a nucleoside?

Glycosidic bond Signup and view all the answers

Which type of nucleotide enters the structure of many coenzymes such as NAD, NADP, FAD, and FMN?

Purine nucleotides Signup and view all the answers

Which nucleotide serves as the active sulfate donor?

'3'phosphoadenosine-5'-phosphosulfate Signup and view all the answers

Which nucleotide regulates the rate of oxidative phosphorylation in mitochondria?

Adenosine Signup and view all the answers

Which nucleotide enters the structure of high energy stores ATP and GTP?

Deoxyguanosine monophosphate Signup and view all the answers

What does SAM stand for and what is its function?

S-adenosyl methionine, serves as an active methyl donor. Signup and view all the answers

What type of nucleic acid structure contains a single chromosome and non-chromosomal DNA called plasmid?

Prokaryotic DNA Signup and view all the answers

What kind of bond links the monomeric nucleotides of DNA together?

Phosphodiester bond Signup and view all the answers

In the structure of DNA, which end possesses a 3`hydroxyl and which end possesses a 5`-phosphate?

3<code> end possesses 5</code>-phosphate, 5<code> end possesses 3</code>hydroxyl Signup and view all the answers

What is the favored configuration of the double-stranded DNA molecule?

Right handed-helix Signup and view all the answers

What represents the backbone of the axis in the structure of DNA?

Phosphate ribose molecules Signup and view all the answers

Which type of nucleotide in DNA has an anti-parallel configuration?

Thymidylate Signup and view all the answers

What is the diameter of a single turn of β-DNA?

2 nm Signup and view all the answers

How many hydrogen bonds are there between G and C bases in double-stranded DNA?

3 Signup and view all the answers

What is the function of the template strand in DNA?

It is copied during nucleic acid synthesis Signup and view all the answers

What is the source of information for the synthesis of all protein molecules?

DNA Signup and view all the answers

What type of bond links the sugar with the base in a nucleoside?

Covalent bond Signup and view all the answers

Nucleotide Chemistry and Biochemical Functions Quiz

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Questions and Answers

What are the building units of nucleic acids?

Which nitrogenous base is present in both DNA and RNA?

What is the composition of a nucleotide?

Which type of nucleic acid contains thymine?

What are the two main types of nucleic acids?

Which nitrogenous base is present in RNA but not in DNA?

Which type of nucleotide contains a base, sugar, and phosphate?

Which nucleotide serves as the active methyl donor?

What is the function of cAMP and cGMP nucleotides?

Which base is present in RNA only?

What type of bond links the sugar with the base in a nucleoside?

Which type of nucleotide enters the structure of many coenzymes such as NAD, NADP, FAD, and FMN?

Which nucleotide serves as the active sulfate donor?

Which nucleotide regulates the rate of oxidative phosphorylation in mitochondria?

Which nucleotide enters the structure of high energy stores ATP and GTP?

What does SAM stand for and what is its function?

What type of nucleic acid structure contains a single chromosome and non-chromosomal DNA called plasmid?

What kind of bond links the monomeric nucleotides of DNA together?

In the structure of DNA, which end possesses a 3hydroxyl and which end possesses a 5-phosphate?

What is the favored configuration of the double-stranded DNA molecule?

What represents the backbone of the axis in the structure of DNA?

Which type of nucleotide in DNA has an anti-parallel configuration?

What is the diameter of a single turn of β-DNA?

How many hydrogen bonds are there between G and C bases in double-stranded DNA?

What is the function of the template strand in DNA?

What is the source of information for the synthesis of all protein molecules?

What type of bond links the sugar with the base in a nucleoside?

Which form of double-stranded DNA is the commonest under physiological conditions?

How many forms does double-stranded DNA exist in?

What does replication of DNA involve?

What is the width (diameter) of a single turn of β-DNA?

What serves as a template in the synthesis of nucleic acids?

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