multiple parts

Department Mixer Announcement

  • Biological Science Department mixer scheduled for tomorrow.

  • Location changed to Staples Room next to Fortuna Fountain inside the building due to 80% chance of rain.

Student Attendance

  • Students attending must be majoring in:

    • Biomedical Science

    • Biology

    • Environmental Science

  • Attendance sheet for students collected to assess dedication and for reference to higher lab work.

Open BioLab Hours

  • Students encouraged to utilize the Open BioLab facilities extensively.

  • Enthusiastic effort made to provide tutoring sessions.

  • Two tutors allocated to assist students, emphasizing the need to take advantage of these resources.

  • Open BioLab hours also for lab-related study, not just lecture material.

Upcoming Lab Practicum

  • Lab Practicum One to take place next week.

  • Composed of 25 questions based on hands-on experiments.

  • Emphasis on preparing for the practicum as it is closely aligned with future exams.

Exam Scheduling

  • Upcoming schedule involves the following:

    • Second Exam Day options:

    • Monday, the 24th

    • Friday, the 31st

  • Clarification on exam dates:

    • Monday, the 27th

    • Friday, the 31st

  • Announcement of final exam date to be made next week.

Prayer Session

  • Three students chosen for prayer this week:

    • Emily

    • Eva (two instances)

    • Valerie (two instances)

  • Emily took the lead for today’s prayer.

Quiz Preparation

  • Students allowed to choose a number (1 through 16) to discuss specific question prior to Quiz Six.

  • Emily's selection was number four.

Concept Review: Plasma Membrane (Chapter 7)

  • Membrane structure:

    • Phospholipid bilayer plus embedded proteins and carbohydrates.

  • Functions of Plasma Membrane:

    1. Isolation and protection

    2. Communication

    3. Regulation of substance entry and exit

  • Introduction of membrane proteins:

    • Peripheral proteins

    • Integral proteins

Protein Transport Mechanisms

  • Importance of transport proteins for hydrophilic substances to cross membranes due to the hydrophobic tail.

  • Types of transport proteins:

    1. Channel Proteins:

    • Form hydrophilic channels in the membrane.

    1. Carrier Proteins:

    • Change shape to facilitate molecule transport in/out of the cell.

Protein Structures and Enzyme Function

  • Mention of polypeptides as raw materials lacking functional shapes.

  • Importance of tertiary and quaternary protein structures for functionality.

  • Definition of enzymes:

    • Enzymes are proteins with specific shapes and functions.

    • Enzymes work specifically with certain reactants known as substrates.