About This Chapter
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
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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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Other chapters within the HiSET Science: Prep and Practice course
- HiSET: Atoms, Elements & the Periodic Table
- HiSET: Inorganic Chemistry
- HiSET: Cell Biology
- HiSET: The Cell Cycle & Cell Division
- HiSET: Enzymatic Biochemistry
- HiSET: Cellular Respiration & Photosynthesis
- HiSET: Compounds & Chemical Bonds
- HiSET: Chemical Reactions, Acids & Bases
- HiSET: Classification of Organisms
- HiSET: Genetics & Evolution
- HiSET: Genetic Engineering Basics
- HiSET: Animal Reproduction & Development
- HiSET: Human Reproductive Anatomy & Physiology
- HiSET: Human Body Systems
- HiSET: Nervous, Immune & Endocrine Systems
- HiSET: Ecology & Ecosystems
- HiSET: Animal Behavior
- HiSET: Mechanics of Motion
- HiSET: Principles of Light
- HiSET: Energy & Heat
- HiSET: Electricity & Magnetism
- HiSET: Earth Science & Geologic Time
- HiSET: Earth's Spheres & Internal Structure
- HiSET: Weathering & Erosion
- HiSET: Minerals & Rocks
- HiSET: Plate Tectonics & Continental Drift
- HiSET: The Atmosphere
- HiSET: Astronomy