Orientation: Introduction to Biology

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Message from your Instructor

This message confirms that you have signed up for Introduction to Biology, a Fundamentals course that I will be teaching entirely online. I have prepared this document to help make your online educational experience as positive and enjoyable as possible. It contains contact information, a description of our course delivery system, course mechanics, and a course schedule.

How to get Started:

This course is conducted through an online classroom. You will need to go to this classroom to obtain your lessons, work through tutorials, take quizzes, complete assignments, participate in discussions with your fellow students, and ask questions of your instructor. As soon as the registration office verifies receipt of your payment, you will be able to participate. Here's how it works:

  1. Wait until after 12:00 a.m. (Pacific Time) on the start date for this course.
  2. After the course begins, go to https://www.ed2go.com/harford/. The Online Classroom is open 24 hours a day and seven days a week, so please feel free to log in to your classroom at any time of day that is convenient for you.
  3. Once on the website, click the Login link at the top right of the page.
  4. Finally, log in with the username and password you provided us at the beginning of this orientation procedure. You should then be able to enter the online classroom and begin your studies.

Course Description

Are you interested in learning more about living things, or perhaps beginning to train for a career in the healthcare or medical professions? This course will help you understand the structure and function of the human body at the level of your tiniest living components—your cells. You'll also learn about DNA—what it is, what it does, and even a little bit about how forensic scientists use it to solve crimes. The knowledge you'll gain from this course is essential to understanding the fundamental causes of human disease, and will prepare you for more advanced courses in human anatomy and physiology.

As you explore each topic, you'll have lots of opportunities to deepen your understanding and relate what you're learning to your own life. When things get complicated, you'll have the guidance you need, so you won't get overwhelmed by the details. By the end of the course, you'll have a better appreciation of the fundamental characteristics of living things as well as a solid foundation in the biology of human beings and the biological and medical sciences.

Course Requirements

Requirements:

Hardware Requirements:

  • This course can be taken on either a PC, Mac, or Chromebook.

Software Requirements:

  • PC: Windows 8 or later.
  • Mac: macOS 12 or later.
  • Browser: The latest version of Google Chrome or Mozilla Firefox are preferred. Microsoft Edge and Safari are also compatible.
  • Adobe Acrobat Reader.
  • Software must be installed and fully operational before the course begins.

Other:

  • Email capabilities and access to a personal email account.

Instructional Material Requirements:

The instructional materials required for this course are included in enrollment and will be available online.

Course Mechanics

I will make two lessons available to you every week for six weeks. You do not have to be present when a lesson is released, but you'll need to complete each lesson within two weeks of its release.

Once all 12 lessons have been released, I will give you a two-week grace period to complete your studies and take the final exam. This means that you have a total of eight weeks to complete this course. If you're thinking of taking another course after this one, you can avoid overlap by starting that course exactly two months after this one begins.

Lessons are released by 12:00am (Pacific Time) on Wednesdays and Fridays. To access your lessons, simply visit the online classroom (as described in the "Getting Started" section), and then click the lesson title you wish to visit.

Once the class access ends, I won't be able to send you the lessons. If you would like to keep the lessons for future reference, I suggest using the print lesson feature in the classroom.

Each time you complete a lesson, you will also be asked to complete a brief multiple-choice quiz. I expect you to complete each quiz within two weeks from the date that the corresponding lesson was made available. I realize that you are busy, and don't want you to worry if you can't complete a few of the quizzes on time due to illness, vacation, or other commitments. Once I release a lesson and quiz, I will make sure it is available to you as long as the classroom is open.

The interactive multiple-choice quizzes are designed to test your comprehension of the course material. When you complete a quiz, you will receive an instant analysis of your work.

This analysis will include a brief explanation of any errors you may have made. If you are not satisfied with your performance, you are welcome to re-take the quiz until you feel that you have mastered the quiz objectives.

Note: If you ever want to see a progress report showing your performance on the quizzes over time, simply return to https://www.ed2go.com/harford/ and click Login or Account at the top right of the page. Once logged in, click the Report tab under the course title.

Some of your lessons will also be accompanied by an assignment. The assignments are designed to help you expand your understanding of the material taught in this course. Assignments are typically more detailed and may take a bit more time to work through than quizzes.

I expect you to complete each assignment within two weeks from the date that the corresponding lesson was made available. Unlike the quizzes, your assignments will not be evaluated. Assignments are designed primarily for your enrichment. You have the sole responsibility for evaluating your performance on each assignment. If you have questions about an assignment, please feel free to use the Discussion Areas to discuss your assignments with your fellow students and me.

When you work through an assignment, you will be gaining practical first-hand experience with the new skills taught in this course. Your performance on the final exam will depend in no small part on your mastery of the assignments.

The course will conclude with a final exam, which will test your comprehension of the material covered in this class. You must complete the final exam within two weeks from your receipt of lesson 12. Please review your selections before submitting. You may only submit your final exam answers once. Your performance on the final exam is the only factor we will consider when determining your eligibility for a certificate of completion. Although your quiz and assignments will not count toward your eligibility for a certificate, I do recommend that you try to complete each quiz and assignment to the best of your abilities. Doing so will leave you better prepared to pass the final exam.

When you finish your studies, please note that our classroom log-out process is fully automated. We will log you out of the classroom automatically whenever you close your browser or shut down your computer.

Questions

This course can be highly interactive, but the level of that interactivity is controlled by you. Since I can't see that puzzled look on your face, it's going to be up to you to ask questions when you get stuck.

I expect to get many interesting questions from you and your fellow students. I want to make sure that you and your classmates benefit from these often illuminating queries.

Therefore, I would like to request that you avoid e-mailing your questions to me. Instead, I have created 12 Discussion Areas in the online classroom (one Discussion Area for each lesson). To reach these Discussion Areas, all you will need to do is wait for the course to begin, go to the online classroom, select the lesson you're working on, and click the Discussion Area tile.

Your Discussion Area questions will serve as a challenge for your fellow students. Someone is bound to have an answer for you. Likewise, you should be able to find questions in the Discussion Area that you can answer. The Discussion Area will be open to you and your classmates 24 hours a day and seven days a week. Please try to visit the Discussion Area at least every other day while the course is in session, and don't be afraid to participate!

I firmly believe that the best way to learn a new skill is to teach it to others. We will all benefit by helping one another understand this complex material.

Because I don't want to see any unanswered questions, I (or one of my very capable teaching assistants) will be monitoring the Discussion Area at least every other day (excluding weekends and holidays). If you ask a relevant question, but fail to get a correct answer (or any answer whatsoever) from your classmates, then we will try our hardest to answer the question for you.

Please understand that the Discussion Area is reserved for conversations about the material in your lessons. While it is perfectly acceptable for you to employ a bit of friendly banter as you converse with your fellow students and instructors, I must ask you to always remember to stay on topic.

It is not appropriate to use the Discussion Area to sell goods or services, complain about something, or talk about subjects that are not specific to the lesson at hand, for example. Such off-topic conversations waste people's time and detract from the learning experience for all involved. I reserve the right to immediately delete any message without comment if I feel that it does not pertain directly to the material I am trying to teach.

I will also delete any messages containing language that I feel is derogatory, controversial, insulting, or otherwise inappropriate for my classroom.

Reminder

A legitimate organization would never send you an unsolicited e-mail that contains an attachment or asks for personal information. If you ever receive an unsolicited e-mail that contains an attachment or asks for personal information, delete the e-mail immediately.

When to Write my Course Administrator

As I mentioned earlier, the course Discussion Area is reserved solely for discussion of the material in your lessons.

Please do not use the course Discussion Areas for compliments, complaints, technical support, or other personal matters. Instead, please send such messages directly to my course administrator.

To contact the course administrator, scroll to the very bottom of any page within the classroom and look for the Support link.

Please understand that it may take my course administrator two or sometimes three business days to respond to e-mail, so provide plenty of time for a response.

If you need an extension, forgot your password, want a progress report, want to register for another course, or need help when you're not in my classroom, you can contact Student Support using the Help link under Resources in the footer of any page at https://www.ed2go.com/harford/.

Syllabus

Note: This course will run for six weeks. Two lessons will be released each week for the six-week duration of the course. You do not have to be present when each lesson is released. Instead, you can take up to two weeks to complete each lesson after it is released.

Important: In order to keep this material as up-to-date and informative as possible, I reserve the right to make changes to the course content, description, and syllabus at any time and without warning.

A new session of each course we offer starts on the second or third Wednesday of every month. You may enroll in more than one course at a time. If you are enrolling in a series of two or more courses, please be sure to space the start date for each course at least two months apart.

Week 1

What Is Life?
Wednesday

In your first lesson, you'll get an introduction to the smallest living part of you: the cell. You'll discover the properties of life that you and your cells both have, and you'll see how cells combine to form the tissues and organs that make up your body. The lesson will also introduce the non-living components that make up cells, including molecules and atoms. Then you'll see how scientists sum up the most important facts about cells in cell theory. By the end of this lesson, you'll know why cells are the smallest units of life, and you'll understand how they make up all living things, including your body.

A Tour of Your Cells
Friday

In this lesson, you'll take an in-depth look at your cells and how they function. You'll consider why all life on Earth is based on cells. You'll take a look at the structures found in eukaryotic cells—the type of cells shared by you, other animals, plants, mushrooms, and seaweed—and explore how each structure contributes to the life of the cell as a whole. By the end of this lesson, you'll have a better understanding of how your cells work.

Week 2

What Makes Matter?
Wednesday

In this lesson, you'll discover the fundamental units of matter that make up the structure of every organism and the Earth itself. You'll explore the structure of atoms and learn about the attractions that form between atoms to create molecules. You'll also take a peek at the unique nature of the water molecules that cover 70% of the Earth's surface and flow within every living thing. By the end of this lesson, you'll have a gained a foundation in simple chemistry that will help you better understand symbols like H2O and CO2. You'll also have a basis for understanding more complicated molecules like carbohydrates, proteins, and DNA.

You Are What You Eat
Friday

In this lesson, you'll take a good look at the molecules that make up most of your body. You'll examine the structure of carbohydrates, lipids (fats and related molecules) and proteins, and learn exactly why your body needs all three of these types of molecules. By the end of this lesson, you'll have a better understanding of the value of carbohydrates, the difference between dangerous saturated fats and healthy unsaturated oils, and why you should choose lean protein to get your essential amino acids.

Week 3

To Protect and Serve: The Plasma Membrane
Wednesday

In this lesson, you'll explore the structure and function of one of the cell's most crucial parts: the plasma membrane. All life depends on this very important boundary between a cell and its environment! You'll start by examining the membrane's components and unique properties, which are perfectly suited to protecting the health and well-being of the cell. Then you'll take a look at the important jobs the membrane does for your cells, including screening materials, moving stuff in and out of the cell, and receiving messages. Finally, you'll see how materials cross the plasma membrane and why that's important to normal health. Along the way, you'll gain a better understanding of blood types, diabetes, and cystic fibrosis.

Getting the Job Done With Enzymes
Friday

In this lesson, you'll learn all about enzymes: what they are, what they do, and why they're important to cells and human health. You'll also get an introduction to chemical reactions and some fundamentals of human metabolism. By the end of this lesson, you'll know why you need vitamins and minerals in your diet. You'll also discover how humans can manipulate enzymes, targeting them in order to benefit or harm human health.

Week 4

Getting Energized From Cellular Respiration
Wednesday

In this lesson, you'll explore one of the most important parts of your metabolism: cellular respiration. Cellular respiration is the process that your cells use to get the energy they need to survive. You'll learn the fundamental laws that govern all energy exchanges, whether your cells or man-made machines perform them. By the end of this lesson, you'll understand the most important events that occur during cellular respiration, and you'll have new insights into why you breathe and why you sweat.

DNA: The Molecule of Life
Friday

In this lesson, you'll look at the most important molecule of life: DNA. You'll see how the genetic blueprints in DNA determine all of your unique traits. You'll also explore the structure of DNA and learn about its powerful chemical code. By the end of the lesson, you'll know what the letters A, T, G, and C mean to biologists, and you'll have a better understanding of the importance of stem cells in medical research.

Week 5

How Do Cells Grow and Reproduce?
Wednesday

In this lesson, you'll explore how cells divide to make new cells for growth, repair, and sexual reproduction. You'll see how cells make exact copies of themselves during mitosis in order to grow or repair damage (such as a paper cut). The lesson will walk you through the process of mitosis to show you how cells get exactly the right number and types of chromosomes. You'll then see how a special kind of cell division called meiosis is necessary for sexual reproduction and the human life cycle.

Principles of Inheritance
Friday

In this lesson, you'll find out how parents pass traits to their offspring. You'll explore how the genetic information from both parents interacts to determine which traits appear in each generation. By the end of this lesson, you'll have a better understanding of why people in families look like each other and why there is so much diversity in human traits like skin and eye color. You'll also know more about the inheritance of some genetic diseases.

Week 6

DNA Technology
Wednesday

In this lesson, you'll look at how biologists are delving into the mysteries of life by reading and manipulating the genetic code. You'll take a peek at some of the new DNA technology that's helping scientists test for and treat genetic diseases, engineer organisms, and solve crimes. You'll explore some of the issues this technology presents. By the end of this lesson, you'll have a better understanding of genetic testing, genetically modified organisms (GMOs), and how DNA is used in forensic science.

Understanding Cancer
Friday

In the final lesson of the course, you'll investigate how normal cells turn into cancer cells. You'll look at the changes that occur in cells as the disease progresses. You'll also explore how cancer treatments work and find out what lifestyle choices you can make to lower your cancer risks. By the end of this lesson, you'll have a better understanding of the biology behind cancer, as well as the risks, prevention strategies, and treatments for this disease.

Instructor

René Fester Kratz

René Fester Kratz graduated from the University of Washington with a Ph.D. in Botany. For the past 15 years, she's been teaching biology to a wide variety of students whose interests range from curiosity about the natural world to a desire to work in the healthcare professions. René's strong interest in science literacy motivated her to help develop science classes for future teachers and to write several science books aimed at the general public, including Biology for Dummies and Molecular and Cell Biology for Dummies. In both her teaching and her writing, René emphasizes central ideas and keeps jargon to a minimum.

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