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Ch 5: HiSET: Biomolecules

About This Chapter

Study for HiSET Science exam questions on biomolecules through this chapter's engaging lessons. Learn the different topics through the effective video and text resources.

HiSET: Biomolecules - Chapter Summary

Discover the structure and function of organic molecules, proteins and lipids as you prepare for the HiSET Science test. Watch fun video lessons that discuss the following:

  • Organic molecules
  • Carbohydrates
  • Lipids
  • Proteins
  • DNA
  • RNA

The text lessons in this chapter contain key terms written in bold that pinpoint the main components. You can easily transition between different video pieces with the convenient video tags.

HiSET: Biomolecules Chapter Objectives

The HiSET Science subtest examines your knowledge of multiple areas in science and how well you can apply that knowledge. The test's 50 questions are all multiple choice and cover topics within the life, physical and earth/space science areas. This chapter will increase your understanding of biomolecules and prepare you for the relevant questions you'll see within the life science portion of the exam; life science questions make up 50% of the test. Use the videos in this chapter to prepare for questions on the different types of DNA, the chemical structure of nucleic acids and the different groups of organic molecules.

10 Lessons in Chapter 5: HiSET: Biomolecules
Introduction to Organic Molecules I: Functional Groups

1. Introduction to Organic Molecules I: Functional Groups

If you've ever wondered what gives vinegar that sour flavor, you may not realize that you have contemplated functional groups. View this lesson for an introduction to organic chemistry, functional groups and how they are part of your daily life.

Introduction to Organic Molecules II: Monomers and Polymers

2. Introduction to Organic Molecules II: Monomers and Polymers

From everyday man-made items like milk jugs and styrofoam to natural proteins and plant materials, the world is full of polymers! Check out this lesson to learn how polymers are constructed on a molecular level.

Structure and Function of Carbohydrates

3. 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

4. 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

5. 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

6. 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.

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.

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

8. 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: Discovery, Facts, Structure & Function in Heredity

9. DNA: Discovery, Facts, Structure & Function in Heredity

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)

10. 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.

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