BIO105 Jan 19th, BIO105 Introductory Biology, David Champlin, USM

Overview

David Champlin lays out BIO105’s pandemic-adapted structure at the University of Southern Maine: students complete prerecorded mini-lectures and textbook chapters with substantial note-taking, meet on Wednesdays for questions and discussion, and attend or document missed classes by sending notes within a week. He also previews the course’s focus on molecular and cellular biology, including proteins, amino acids, gene expression, and genetics, and answers questions about insulin inheritance and hormone-disrupting pollutants.

Key takeaways

BIO105 assigns 15 percent of the final grade to mini-lecture notes and 15 percent to textbook chapter notes, while notes for missed meetings are a participation requirement rather than a separately graded category.
Students who miss a Wednesday class must watch its recording, take notes, and email them within one week; attending class does not require submitting class notes.
Wednesday sessions are designed primarily for questions about prerecorded lectures and textbook material, while students use the rest of the week to prepare.
A child inherits one insulin allele from each parent, but insulin function and diabetes risk can also depend on mutations, the insulin receptor, and other genes.
Transcription copies DNA information into RNA, whereas translation converts the RNA nucleotide code into a protein’s amino-acid sequence.
Gene regulation explains why cells can carry the same DNA, including the insulin gene, while expressing different genes in different tissues.

Chapters

0:00 Recorded Class Meetings and the Attendance Requirement

David Champlin will record every BIO105 meeting, whether it takes place on Zoom or in person, and share a private link with the class.
Students are expected to attend most meetings; someone who misses class must take notes on the recording and email them within one week.
Class participation is a course requirement rather than a separately graded assignment, but failing to participate can lower the course grade.

5:00 Why Note-Taking Supports Learning and Scientific Thinking

Champlin argues that recordings let students revisit live discussions and follow up on ideas that were difficult to document during class.
He frames scientists as skeptical and creative, encouraging students to pause, investigate claims, and develop questions rather than only copy lecture content.
He recommends treating note-taking as a learning effort that includes writing and drawing, not simply transcribing information.

10:00 Email, Brightspace, and Catching Up on Course Materials

Champlin primarily manages BIO105 through email, while Brightspace holds course announcements and the syllabus.
Students who registered late should email him to receive earlier course messages and mini-lecture links.
He asks students to label emailed work clearly, such as identifying which chapter notes are attached, so submissions can be tracked.

13:00 Student Athletes, Absences, and the Tutoring Center

Student athletes and other students who miss a meeting must watch its recording, take notes, and email them within one week.
Champlin recommends contacting the USM Learning Center for help with study skills, time management, and managing BIO105 assignments.
Students should submit notes as they finish them instead of waiting for the deadline.

17:00 BIO105 Note Grades and the Role of Handouts

Mini-lecture notes count for 15 percent of the final grade, and textbook chapter notes count for another 15 percent.
Notes for a missed class are required to demonstrate participation but are not part of those two graded note categories.
Handouts do not require separate notes; Champlin describes them as guides that highlight material already covered in lectures or the textbook.

23:00 Drawing, Flash Cards, and Multiple-Choice Exam Preparation

Champlin encourages handwritten notes, diagrams, and flash cards, while allowing typed notes or tablet-and-stylus work when those methods suit the student.
He discourages treating pasted images as note-taking because copying images alone does not require active learning.
For multiple-choice exams, he recommends flash-card-style practice and pausing to recall what you know when a question causes a mental block.

27:00 Remote Exams, Practice Quizzes, and Assignment Deadlines

If an exam must be remote, Champlin plans to email it at the regular Wednesday start time of 9:30 a.m.; students must return exam photos by 10:45 a.m.
BIO105 has three exams, and quizzes of 10 multiple-choice questions provide practice for the exam format.
Quizzes will be announced in advance, and late note submissions can still be sent for reduced credit.

29:00 BIO105 Themes: Cells, Proteins, and Molecular Chemistry

Champlin describes the course as covering the first 18 textbook chapters, with emphasis on biological chemistry, metabolism, cell signaling, the cell cycle, and genetics.
One course theme is that cells share similar chemistry, including proteins and membranes made from phospholipids.
He compares learning molecular biology to assembling structures from LEGO-like chemical building blocks.

35:00 Why BIO105 Meets on Wednesdays Rather Than Mondays

The class meets only on Wednesdays, remotely or in person depending on USM’s decision; the course schedule and expectations stay the same either way.
Prerecorded mini-lectures replace the Monday meeting, leaving students time to complete lecture and textbook preparation.
Wednesday meetings focus on student questions, confusion, and discussion rather than a new conventional lecture.

40:00 Using Questions, Email, and Zoom Meetings to Get Help

Champlin asks students to note confusing pages, figures, and terms while studying and bring those questions to Wednesday class.
Students can email questions or arrange individual Zoom or phone meetings, including discussions about advising, internships, and careers.
He says his availability extends beyond the listed office hours, though arranging a meeting may take a day or two.

43:00 Week One Assignments, Attendance, and Research Seminar

Week one begins immediately: students should watch the first three mini-lectures, take notes, and read and take notes on Chapter 1.
Champlin takes attendance during each meeting, including Zoom sessions, and students who already studied biology in high school must still complete the course notes.
The syllabus includes a required late-March research seminar at USM about mitochondria, with an alternative assignment for students who cannot attend.

47:00 Staying on Pace Through the Semester

The first notes deadline is approximately January 29; Champlin urges students to work steadily and submit completed portions early.
The course is not self-paced: students should not expect to finish the material in March and stop attending.
Champlin emphasizes a stable semester plan, with only the Wednesday meeting location changing between Zoom and the classroom.

55:00 Course Expectations, pH, and Protein Digestion

Champlin presents biology as a physical system of interacting parts and encourages students to build confidence in understanding its concepts.
He previews Chapter 3’s pH material: the acidic environment of the stomach helps break dietary proteins into amino acids.
Cells can use those amino acids to build human proteins, connecting chemistry topics to the later study of proteins and cellular function.

1:03:00 How Insulin Alleles Can Affect a Child’s Risk

A child inherits one insulin gene from each parent, and different alleles can contribute to different levels of insulin function.
Champlin illustrates the idea with hypothetical activity values of 87 and 50, while cautioning that such simple percentages are not practical clinical measurements.
A child may have reduced insulin activity even when each parent is healthy; mutations and other genes, including the insulin receptor gene, can also contribute to diabetes.

1:09:00 Endocrine Disruptors, Phthalates, and Persistent Chemicals

Champlin distinguishes acute toxicity and cancer risk from endocrine disruption, in which chemicals interfere with hormone receptors and development.
He identifies BPA as an estrogen-like endocrine disruptor and phthalates as chemicals that can mimic testosterone; effects may occur at low concentrations.
He distinguishes those examples from so-called forever chemicals associated with products such as Teflon pans, some of which persist in the environment for very long periods.

1:17:00 Why Weekly Discussions Can Address Chapters at Different Paces

Students may submit notes for chapters before those chapters are discussed in class, because the course must keep moving through its scheduled material.
Wednesday discussions can address questions from earlier chapters or material students have already reached ahead of schedule.
Champlin treats varied student progress as a reason to connect questions to the broader course rather than restrict discussion to one chapter.

1:19:00 Transcription Copies DNA Information into RNA

Champlin describes DNA as an information-storage molecule, with genes as units of information that can be expressed to make products such as insulin.
Transcription copies a gene’s DNA sequence into RNA, which Champlin compares to a scribe making a copy.
Translation is different: RNA’s nucleotide code is converted into the amino-acid sequence of a protein.

1:24:00 Gene Regulation Explains Why Insulin Is Made in the Pancreas

Nearly every cell contains the insulin gene, but insulin RNA and protein are normally produced in the pancreas rather than in every tissue.
Champlin explains that a gene includes both a product-producing region and regulatory information controlling where, when, and how much output occurs.
Measuring insulin mRNA can reveal where a gene is active, making gene regulation a central theme of the later BIO105 material.

Summary, takeaways, and chapters were generated by AI from the video's transcript and may contain errors. The video belongs to its creator, The New Evolution for Everyone.