About This Chapter
ILTS Biology: Major Human Body Systems - Chapter Summary
Use this chapter's lessons to refresh your understanding of the organ systems of the human body and how they work. Our videos and texts will help you get ready for the ILTS Biology test by discussing topics including:
- Connective tissue
- The skeletal and muscular system
- Classifications and features of different animal bodies
- How the circulatory system works
- Gas exchange in the respiratory system
- Function of the digestive system
- The excretory system
Our instructors will lead you through each major body system topic via engaging videos that you can watch and texts you can read on a computer or mobile device. You can reinforce your study by reviewing the text transcripts or taking the multiple-choice quizzes. There's even a printable sheet of quiz questions you can use for offline study.
ILTS Biology: Major Human Body Systems - Chapter Objectives
The ILTS Biology test assesses your understanding of basic biological concepts in order to become a certified biology teacher in Illinois. The exam has six subareas, and the topics covered in this Major Human Body Systems chapter are part of the Life Science portion of the exam.
You can gain practice answering the types of questions that will be on the multiple-choice ILTS test by answering our multiple-choice practice quizzes after each lesson and the chapter exam at the end. The quizzes include links back to the video lesson to show you the correct answers to questions you missed.
1. Multicellular Organisms, Tissues and Epithelium
In this lesson on multicellular organisms, you'll take a look at what it actually means to be multicellular and how cells are organized into tissues, organs, and organ systems. This lesson also covers one of the four main tissue types: epithelial tissue.
2. Types of Connective Tissue
In this lesson, you'll learn about the various types of connective tissues in the body. These tissues include bone, fat, cartilage and blood. They form the framework of the body, support organs and much, much more!
3. Skeletal System and Muscular System
Do you know how many bones are in the human body? Check out this video lesson to uncover the answer, as well as understand the role and importance of the skeletal and muscular systems.
4. Animal Body Plans: Classifications and Features
The Animal Kingdom is diverse and complex. How do we make sense of it all? Scientists use body plans to classify and organize the animals of Earth, making it much easier to differentiate between them.
5. The Human Circulatory System: Parts and Functions
In this lesson, you will take a ride on the transportation system of the body called the circulatory system and its two parts: the pulmonary circuit and the systemic circuit. Take a look inside and see how every inch of your body receives the oxygen and nutrients it needs.
6. Gas Exchange in the Human Respiratory System
Did you know that the average human lung has a respiratory surface area that is roughly the same size as half of a tennis court? Believe it or not, that's how much surface area an active, healthy human needs to ensure that the body gets plenty of oxygen.
7. Overview of the Human Digestive System
Discover how the human digestive system works - one of the most important systems in the human body. Learn what each part does, and then see how much you remember with a quick quiz.
8. Excretory System
Each year in the U.S., close to 400,000 people with kidney failure undergo dialysis treatment in order to remove waste, remove excess fluid and restore electrolyte balance. Kidneys, the workhorses of the excretory system, perform these same functions more effectively than any machine. In this lesson, we'll talk about how the excretory system removes toxic substances from the body.
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Other chapters within the ILTS Science - Biology (105): Practice and Study Guide course
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