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Late Submission Policy

  • Canvas deducts grades for late submissions automatically.
  • Instructor willing to fix grades manually for affected students.

Planning and Preparation

  • Importance of time management is stressed.
  • Complete all readings carefully before assignments.
  • Prepare for lab work within the first hour to avoid crunch time in the second hour.

Discussion Boards in Class

  • Discussion boards are essential, not busy work.
  • Objective: to introduce students to microbiology concepts and facilitate discussion among classmates.
  • Reduced number of discussion boards to focus on quality over quantity.
Current Assignment
  • Students must find and summarize an article on microbiology.
  • Article relevance: it should connect to personal health, interesting facts, or other areas of interest related to microbes.
  • Deadline for submissions is one week from the assignment date.
Essay Requirements
  • Summary should be in students' own words, keeping in mind the understanding level of classmates.
  • Importance of communication and avoiding technical jargon that may confuse peers.
  • Evaluate the article using the CRAB test (Current, Relevant, Authoritative, Accurate).

CRAB Test

  • Current: Ensure articles are recent; older articles may not reflect current understanding.
  • Relevant: Article should align with course topics.
  • Authoritative: Source should be credible, ideally authored by experts in the field.
  • Accurate: Facts presented must be reliable and well-researched.

Science Writing Tips

  • Emphasize writing in one's own words rather than relying on AI-generated content for summaries.
  • AI can be helpful for article searches but not for writing.

Taxonomy Overview

  • Taxonomy involves classifying organisms, essential for scientific communication.
  • Useful for understanding relationships between organisms, especially pathogens.
  • Classifications can help predict behavior and treatment options based on related species.
  • Importance of DNA in modern taxonomy for deeper insights into organism relationships.

Tree of Life and Domains

  • Three primary domains cover all life: Bacteria, Archaea, Eukarya.
  • Eukarya includes a wide range of organisms, including fungi and single-celled microbes.
  • Tree of life organizes all organisms based on genetic relationships.

Levels of Taxonomy

  • Domains: Broadest level, covering all life forms.
  • Kingdoms: Divisions within domains, indicating major groups of organisms.
  • Phyla: Further subdivisions based on shared characteristics.
  • Families, Genus, Specific Epithet: More specific classifications leading to unique species identification.
  • Emphasis on species naming conventions: italicization, capitalization rules.

Importance of Understanding Taxonomy

  • Allows for scientific consensus about organisms being studied.
  • Helps identify and relate to new organisms based on known relatives.
Examples of Taxonomy Applications
  • Understanding relationships among various organisms by examining their taxonomy provides insight into their biology and potential interactions.

Cell Structure Unifying Themes

  • All cells have cell membranes, which are crucial for maintaining internal environments and selectively controlling entry/exit of substances.
  • Emphasized that cells, regardless of type, share fundamental cellular structures and functions.

Prokaryotic Cell Membranes

  • Proteins responsible for various life processes must be embedded in the cell membrane; prokaryotes lack membrane-bound organelles.
  • Info on how prokaryotes may adapt by folding cell membranes to increase surface area for protein attachment.

Cell Wall Structures: Gram Positive vs. Gram Negative

Gram Positive Cell Walls
  • Composed mainly of multiple layers of peptidoglycan providing strength and shape.
  • Smaller or absent periplasmic space compared to Gram-negative organisms.
  • Potential presence of teichoic acids that distinguish them from Gram-negative.

Importance of Cell Walls

  • First line of protection for cells against environmental pressures.
  • Structure aids in identification groups during microscopy and lab work.
Summary
  • Preparing students for successful lab sessions, discussion engagements, and scientific literacy in microbiology through a structured approach to reading, evaluating resources, and understanding taxonomy is emphasized throughout the notes.