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Ch 11: Nucleic Acids - DNA and RNA - in Biology: Help and Review

About This Chapter

The Nucleic Acid chapter of this High School Biology Help and Review course is the simplest way to master DNA and RNA. This chapter uses simple and fun videos that are about five minutes long, plus lesson quizzes and a chapter exam to ensure students learn the essentials of nucleic acids.

Who's it for?

Anyone who needs help learning or mastering high school biology material will benefit from taking this course. There is no faster or easier way to learn biology. Among those who would benefit are:

  • Students who have fallen behind in understanding DNA, RNA and nucleic acids
  • Students who struggle with learning disabilities or learning differences, including autism and ADHD
  • Students who prefer multiple ways of learning science (visual or auditory)
  • Students who have missed class time and need to catch up
  • Students who need an efficient way to learn about nucleic acids
  • Students who struggle to understand their teachers
  • Students who attend schools without extra science learning resources

How it works:

  • Find videos in our course that cover what you need to learn or review.
  • Press play and watch the video lesson.
  • Refer to the video transcripts to reinforce your learning.
  • Test your understanding of each lesson with short quizzes.
  • Verify you're ready by completing the nucleic acids chapter exam.

Why it works:

  • Study Efficiently: Skip what you know, review what you don't.
  • Retain What You Learn: Engaging animations and real-life examples make topics easy to grasp.
  • Be Ready on Test Day: Use the nucleic acids chapter exam to be prepared.
  • Get Extra Support: Ask our subject-matter experts any nucleic acids question. They're here to help!
  • Study With Flexibility: Watch videos on any web-ready device.

Students will review:

This chapter helps students review the concepts in a nucleic acid unit of a standard high school biology course. Topics covered include:

  • Chemical composition of nucleic acids
  • Complementary base pairing
  • Double helix structure in DNA
  • Distinguishing between DNA and RNA
  • Categorizing RNA

16 Lessons in Chapter 11: Nucleic Acids - DNA and RNA - in Biology: Help and Review
DNA: Chemical Structure of Nucleic Acids & Phosphodiester Bonds

1. 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.

DNA: Adenine, Guanine, Cytosine, Thymine & Complementary Base Pairing

2. DNA: Adenine, Guanine, Cytosine, Thymine & Complementary Base Pairing

Learn the language of nucleotides as we look at the nitrogenous bases adenine, guanine, cytosine and thymine. Armed with this knowledge, you'll also see why DNA strands must run in opposite directions.

DNA: Double Helix Structure and Hereditary Molecule

3. DNA: Double Helix Structure and Hereditary Molecule

This lesson will help you to navigate the twists and turns of DNA's structure. We'll also clue you in on the amazing discoveries that put this nucleic acid in the limelight as the molecule of heredity.

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

4. 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.

Types of Nucleic Acids

5. Types of Nucleic Acids

This lesson addresses the types of nucleic acids and their structures. It contains illustrations and detailed descriptions about the various components that form these molecules. A summary and brief quiz are also included.

Guanine: Structure & Definition

6. Guanine: Structure & Definition

One of the bases in DNA, guanine also does some cool jobs on its own. Learn about guanine's structure, functions, and the surprising origins of its name!

What Are Plasmids? - Definition, Types, Function & Characteristics

7. What Are Plasmids? - Definition, Types, Function & Characteristics

Learn about plasmids and how their DNA works to allow their host to adapt to harsh environments. Discover how plasmids are useful in modern-day genetic engineering.

What is DNA? - Structure, Overview

8. What is DNA? - Structure, Overview

This lesson will explore the race to find the structure of the DNA molecule, the parts of that structure and how they fit together, and how this knowledge has been used to advance mankind.

Role of mRNA in Protein Synthesis

9. Role of mRNA in Protein Synthesis

How does the message hidden within our DNA actually become something? This lesson discusses the vital role mRNA plays in protein synthesis. It helps explain how DNA is used within a living organism.

Role of Ribosomes in Protein Synthesis

10. Role of Ribosomes in Protein Synthesis

Protein plays a huge role in our bodies, but how it is made? This lesson describes how ribosomes read the message hidden within our genetic code in order to produce protein. A lesson summary and brief quiz are included.

Role of tRNA in Protein Synthesis

11. Role of tRNA in Protein Synthesis

This lesson takes a look at tRNA and its role in protein synthesis. It also includes some background on the process of protein synthesis itself and tRNA's interactions with other nucleic acids and enzymes.

What Is the Function of Protein Synthesis?

12. What Is the Function of Protein Synthesis?

This lesson discusses the function of protein synthesis. We'll explore this very important process and some of the many roles it plays in sustaining life. At the end of the lesson, test your knowledge with a quiz.

What Is the Purpose of Protein Synthesis?

13. What Is the Purpose of Protein Synthesis?

This lesson will cover the basic steps of protein synthesis. Once we review we'll look at some key examples of why protein synthesis is important in animals, plants and bacteria.

What Is the Role of DNA in Protein Synthesis?

14. What Is the Role of DNA in Protein Synthesis?

What purpose does DNA serve inside the cell? How does DNA contribute to protein synthesis? Learn the answers to these questions and more in this lesson.

What Is the Role of RNA in Protein Synthesis?

15. What Is the Role of RNA in Protein Synthesis?

This lesson discusses the role of RNA in protein synthesis. We'll define protein synthesis and explore how RNA contributes to this important cellular process, then you can test your knowledge with a brief quiz.

What Is the Site of Protein Synthesis?

16. What Is the Site of Protein Synthesis?

Whether you are digesting food, fighting off disease, building muscle, or healing from a cut, protein plays a vital role. This lesson will introduce protein synthesis and explain where this process occurs.

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Other Chapters

Other chapters within the High School Biology: Help and Review course

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