Copyright

Ch 21: Overview of Biomolecules

About This Chapter

Improve your understanding of biomolecules with this overview that includes the structure of lipids, types of RNA, polymerization, and more. These self-paced lessons are a helpful tool for students preparing for an exam or catching up on missed class time.

Overview of Biomolecules - Chapter Summary

The lessons in this chapter provide an information-packed overview of biomolecules, which includes a review of how proteins are different from other amino acid bonds. You will also gain an understanding of the chemical structure of lipids. After completing the chapter, you should be prepared to:

  • List three different types of carbohydrates
  • Discuss the structure and function of lipids
  • Explain why we need proteins
  • Detail what makes a peptide
  • Recall the structure and characteristics of amino acids
  • Discuss how different protein structures are intertwined
  • Describe how nucleotides form polynucleotides
  • Explain the differences between RNA and DNA

Each lesson comes with a brief quiz to ascertain how much of the content you can recall. Video timelines let you review only the topics you need to review. Make the most of the chapter by studying offline when you print the quiz in worksheet form.

8 Lessons in Chapter 21: Overview of Biomolecules
Test your knowledge with a 30-question chapter practice test
Structure and Function of Carbohydrates

1. Structure and Function of Carbohydrates

Carbohydrates are found in many foods that we eat and may be found as sugars, starches, or fiber. Learn more about these three distinct types of carbohydrates, and how they are distinguished through their chemical structures in this lesson.

Structure and Function of Lipids

2. Structure and Function of Lipids

Molecules called lipids have long hydrocarbon chains that determine the way they act. They can be fats, oils, or hormones, and even exist in our cell membranes. Learn more about the chemical structure and biological function of various lipids in this lesson.

Proteins I: Structure and Function

3. Proteins I: Structure and Function

We need our proteins, not just as a major food group but for the many useful roles that they play in our bodies. In our introductory lesson to proteins, you'll learn about the many functions we rely on them to perform.

Proteins II: Amino Acids, Polymerization and Peptide Bonds

4. Proteins II: Amino Acids, Polymerization and Peptide Bonds

In this lesson, we'll take a deeper look at amino acids. You'll learn what makes a peptide, and what separates a protein from other kinds of amino acid bonds.

Proteins III: Structure and Characteristics of the 20 Amino Acids

5. Proteins III: Structure and Characteristics of the 20 Amino Acids

How do amino acids form the intricate polypeptide chains found in proteins? It's a matter of chemistry. Join glycine, a special amino acid, as she sizes up the other amino acids.

Proteins IV: Primary, Secondary, Tertiary and Quaternary Structure

6. Proteins IV: Primary, Secondary, Tertiary and Quaternary Structure

How is progressing through higher order protein structures like crafting an essay? In this lesson, you'll explore everything from quaternary structures to denaturation as we show how the different structures are intertwined.

DNA: Chemical Structure of Nucleic Acids & Phosphodiester Bonds

7. DNA: Chemical Structure of Nucleic Acids & Phosphodiester Bonds

In this lesson, you'll discover what nucleotides look like and how they come together to form polynucleotides. We'll also explore nucleic acids and focus on DNA in particular.

Differences Between RNA and DNA & Types of RNA (mRNA, tRNA & rRNA)

8. Differences Between RNA and DNA & Types of RNA (mRNA, tRNA & rRNA)

In this lesson, you'll explore RNA structure and learn the central dogma of molecular biology. Along the way, you'll meet the three types of RNA and see how the cell uses them most effectively.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

Earning College Credit

Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.

To learn more, visit our Earning Credit Page

Transferring credit to the school of your choice

Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.

Support