Nucleic Acids

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Questions and Answers

Which two natural forms of nucleic acids are found in all cells?

  • Deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) (correct)
  • Protein and lipid
  • Carbohydrate and nucleotide
  • Amino acid and sugar

What are nucleic acids made of?

  • Lipids
  • Monomers
  • Biopolymers (correct)
  • Proteins

What are the three parts that make up a nucleotide?

  • Protein, lipid, and carbohydrate
  • Amino acid, sugar, and nucleotide
  • Phosphate group, 5-carbon sugar, and nitrogen base (correct)
  • Ribose, deoxyribose, and phosphorus atom

What is the phosphate group made up of?

<p>A phosphorus atom with four negatively charged oxygen atoms attached to it (B)</p> Signup and view all the answers

What are the two types of 5-carbon sugar found in nucleic acids?

<p>Ribose and deoxyribose (D)</p> Signup and view all the answers

True or False: Nucleic acids are essential for all forms of life.

<p>True (A)</p> Signup and view all the answers

True or False: Nucleic acids come in three natural forms called DNA, RNA, and proteins.

<p>False (B)</p> Signup and view all the answers

True or False: Nucleotides are made up of a phosphate group, a 5-carbon sugar, and a nitrogen base.

<p>True (A)</p> Signup and view all the answers

True or False: The phosphate group is made up of a phosphorus atom with three negatively charged oxygen atoms attached to it.

<p>False (B)</p> Signup and view all the answers

True or False: The 5-carbon sugar in nucleotides can be either ribose or deoxyribose.

<p>True (A)</p> Signup and view all the answers

Flashcards

Two natural forms of nucleic acids

Deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).

What are nucleic acids?

Biopolymers.

Nucleotide's three parts?

Phosphate group, 5-carbon sugar, and nitrogen base.

Phosphate group composition

A phosphorus atom with four negatively charged oxygen atoms attached to it.

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Two types of 5-carbon sugar

Ribose and deoxyribose.

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Importance of nucleic acids?

Nucleic acids are essential for the existence of all living organisms and viruses.

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Nucleotide components?

Nucleotides consist of a phosphate group, a 5-carbon sugar, and a nitrogen base.

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Phosphate group structure

The phosphate group comprises a phosphorus atom linked to four oxygen atoms, bearing a negative charge.

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5-carbon sugar types

The 5-carbon sugar component present within nucleotides can be found as either ribose or deoxyribose.

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Study Notes

Nucleic Acids

  • Nucleic acids are essential for all forms of life and are found in all cells.
  • There are two natural forms of nucleic acids: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).

Structure of Nucleic Acids

  • Nucleic acids are made up of biopolymers, which are repeated sets of monomers that create nucleotides.
  • Nucleotides are formed by the combination of three parts: a phosphate group, a 5-carbon sugar, and a nitrogen base.

Components of Nucleotides

  • Phosphate group: consists of a phosphorus atom with four negatively charged oxygen atoms attached to it.
  • 5-carbon sugar: also known as a pentose, includes ribose and deoxyribose.
  • Nitrogen base: attached to the 5-carbon sugar and phosphate group to form a nucleotide.

Importance of Nucleotide Structure

  • Understanding the structure of nucleotides is crucial to understanding the structure of nucleic acids.

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