BLG 143

TMU

Course Overview

Lessons & Practice

I. Welcome

2 min

1. Intro & The Importance of Water

60min

1.I. Chapter Intro34 sec

1.1.1. The Scientific Method5 min

1.2.2. Example: The Atom51 sec

1.3.1. Types of Chemical Bonds 5 min

1.3.2. Practice 1

1.3.3. Practice 2

1.4.1. Intermolecular Forces: Hydrogen Bonding5 min

1.4.2. Example 2 min

1.4.3. Practice 12 min

1.4.4. Practice 22 min

1.4.5. Practice 33 min

1.5.1. Intermolecular Forces: Van der Waals Interactions 11 min

1.5.2. Practice 13 min

1.5.3. Practice 2

1.6.1. Important Elements that Make Up Life4 min

1.6.2. Unique Properties of Water6 min

1.6.3. Adhesion and Cohesion

1.6.4. Example: Surface Tension4 min

1.6.5. Practice 12 min

1.6.6. Practice 22 min

1.Q. Scientific Method Quiz4 Qns

2. Biological Molecules

3hr

2.1.1. Energy in Reactions7 min

2.1.2. Gibbs Free Energy8 min

2.1.3. Potential and Kinetic Energies3 min

2.1.4. Activation Energy3 min

2.1.5. Example 15 min

2.1.6. Practice 11 min

2.1.7. Practice 22 min

2.2.1. The Laws of Thermodynamics8 min

2.2.2. Example 2 min

2.2.3. Practice2 min

2.3.1. Miller-Urey Experiment & The History of Life13 min

2.3.2. From Monomers to Polymers4 min

2.4.2. Protein Folding4 min

2.4.3. Functions of Proteins7 min

2.4.4. Example1 min

2.4.5. Practice 13 min

2.5.2. Enzyme Activity4 min

2.5.3. Example1 min

2.5.4. Practice 1 min

2.6.1. Enzyme Regulation10 min

2.6.2. Feedback Inhibition3 min

2.6.3. Example 13 min

2.6.4. Example 26 min

2.6.5. Practice 12 min

2.7.1. Nucleic Acids5 min

2.7.2. The DNA Double Helix5 min

2.7.3. Example2 min

2.7.4. Practice 11 min

2.7.5. Practice 22 min

2.7.6. Practice 33 min

2.7.7. Practice 445 sec

2.8.1. Carbohydrates (Sugars)5 min

2.8.2. Polysaccharides6 min

2.8.3. Practice 1

2.8.4. Practice 2

2.8.5. Practice 3

2.9.1. Lipids: Fats10 min

2.9.2. Lipids: Phospholipids5 min

2.9.3. Lipids: Steroids3 min

2.9.4. Membrane Permeability3 min

2.9.5. Factors Affecting Membrane Fluidity5 min

2.9.6. Example3 min

2.9.7. Practice 13 min

2.9.8. Practice 3

2.9.9. Practice 4

2.9.10. Practice 2

2.10.1. Acids, Bases, and the pH Scale6 min

2.10.2. Example: Acidic and Basic solutions2 min

3. Cell Components: Structure and Function

3.1.1. Nucleus Structure and Function

3.1.2. Practice

3.1.3. Practice

3.2.1. Ribosomal Structure and Function

3.2.2. Practice

3.2.3. Practice

3.3.1. Endoplasmic Reticulum Structure and Function

3.3.2. Practice

3.3.3. Practice

3.4.1. Golgi Apparatus Structure and Function

3.4.2. Practice

3.5.1. Lysosomes and Peroxisomes Structure and Function

3.6.1. Vacuoles Structure and Function

3.6.2. Practice

3.7.1. Mitochondria Structure and Function

3.7.2. Practice

3.7.3. Practice

3.7.4. Practice

3.8.1. Chloroplast Structure and Function

3.8.2. Practice

3.8.3. Practice

3.8.4. Practice

3.9.1. Cytoskeleton Structure and Function

3.9.2. Practice

3.9.3. Practice

3.9.4. Practice

3.10.1. Cytoplasm Structure and Function

3.10.2. Practice

3.11.1. Cell Membrane Structure and Function

3.11.2. Practice

3.11.3. Practice

3.11.4. Practice

3.12.1. External Components: Structure and Function

3.12.2. Practice

3.12.3. Practice

3.12.4. Practice

3.13.1. Plant Cells vs. Animal Cells

3.13.2. Practice

3.13.3. Practice

3.13.4. Practice

3.13.5. Summary - Animal & Plant Cells

4. Inside the Cell

1.6hr

4.1.1. Prokaryotic Cells5 min

4.1.2. Practice 1

4.1.3. Bacteria and Archaea Cell Wall Composition4 min

4.1.4. Practice 2

4.1.5. Practice 3

4.2.1. Eukaryotic Cells2 min

4.2.2. Ribosomes 3 min

4.2.3. Peroxisomes3 min

4.2.4. Mitochondria and Chloroplasts6 min

4.2.5. Plant versus Animal Cells3 min

4.3.1. Endosymbiont Theory5 min

4.4.1. Endocytosis and Exocytosis

4.4.2. Practice 1

4.4.3. Practice 21 min

4.5.1. The Endomembrane System2 min

4.5.2. Lysosomes, Vacuoles and Vesicles

4.5.3. Example 1

4.5.4. Practice 1

4.5.5. Practice 2

4.5.6. The Endoplasmic Reticulum (ER)4 min

4.5.7. The Golgi Apparatus3 min

4.5.8. Practice 3

4.5.9. The Nucleus5 min

4.6.1. Protein Targeting5 min

4.6.2. Targeting to the Endoplasmic Reticulum7 min

4.6.3. Translocation into the ER

4.6.4. Orientation in the ER membrane9 min

4.7.1. Nuclear Import and Export

4.8.1. Cytoskeleton Overview [short lesson]5 min

4.8.2. Microtubules6 min

4.8.3. Actin Microfilaments4 min

4.8.4. Intermediate Filaments3 min

4.8.5. Example31 sec

4.8.6. Practice 1

4.8.7. Illustrations of the Cytoskeleton4 min

4.8.8. Practice 2

4.9.1. Motor Proteins5 min

4.9.2. Flagella and Cilia3 min

4.9.3. Practice 1

4.9.4. Practice 2

5. The Plasma Membrane

42min

5.1.1. Introduction and Passive Transport7 min

5.1.2. Practice 12 min

5.1.3. Practice 2

5.2.1. Osmosis and Osmolarity6 min

5.2.2. Practice 14 min

5.2.3. Practice 21 min

5.3.1. The Fluid Mosaic Model5 min

5.3.2. Practice 1

5.3.3. Practice 21 min

5.3.4. Practice 31 min

5.4.1. Active Transport7 min

5.4.2. Example 3 min

5.4.3. Practice 13 min

6. Cell to Cell Communication

1.4hr

6.1.1. Extracellular Matrix2 min

6.1.2. Junctions and Adhesions5 min

6.1.3. Practice 1

6.1.4. Practice 2

6.1.5. Practice 3

6.2.1. Types of Cell Communication 10 min

6.2.2. Practice 13 min

6.2.3. Practice 22 min

6.2.4. Practice 32 min

6.3.1. Internal Receptors4 min

6.3.2. G-Protein Coupled Receptors (GPCRs)7 min

6.3.3. Receptor Tyrosine Kinases (RTKs)5 min

6.3.4. Ion Channel Receptors2 min

6.3.5. Practice 12 min

6.3.6. Practice 22 min

6.3.7. Practice 33 min

6.4.1. Signal Transduction6 min

6.4.2. Practice 12 min

6.4.3. Practice 21 min

6.5.1. Second Messengers9 min

6.5.2. Practice 12 min

6.5.3. Practice 22 min

6.6.1. Response to Signaling5 min

6.6.2. Practice 12 min

6.6.3. Practice 22 min

7. Cellular Respiration

1.8hr

7.1.1. Coupled Reactions6 min

7.1.2. Example 1 min

7.1.3. Practice 1

7.1.4. Practice 22 min

7.2.1. Redox (Reduction-Oxidation) Reactions7 min

7.2.2. Practice 13 min

7.2.3. Practice 23 min

7.3.1. Overview of Metabolism4 min

7.3.2. Practice 22 min

7.4.1. Overview of Cellular Respiration4 min

7.5.1. Steps of Glycolysis: Intro and Stage I [Detailed]7 min

7.5.2. Steps of Glycolysis: Stages II and III [Detailed]9 min

7.6.1. Glycolysis Regulation8 min

7.6.2. Practice 1

7.6.3. Practice 2

7.7.1. Glycolysis Full Sequence of Reactions and Summary [detailed]8 min

7.8.1. Pyruvate Processing4 min

7.8.2. Practice 1

7.8.3. Stage 2: Pyruvate Processing7 min

7.8.4. New Practice Question

7.9.1. The Citric Acid Cycle3 min

7.9.2. Practice 12 min

7.9.3. Practice 2

7.9.4. Practice 3

7.10.1. Energy of Glucose Metabolism7 min

7.10.2. Practice 1

7.11.1. The Electron Transport Chain8 min

7.12.1. ATP and the Proton Motive Force (PMF)6 min

7.12.2. Example1 min

7.12.3. Practice 2 min

7.13.1. Utilization of TCA Intermediates2 min

7.14.1. Fermentation3 min

7.14.2. Practice 1

7.14.3. Practice 2

7.14.4. Practice 3

8. Photosynthesis

53min

8.1.1. Plant Structures for Photosynthesis4 min

8.1.2. Practice 1

8.1.3. Practice 2

8.2.1. Light-Dependent Reactions of Photosynthesis [detailed]10 min

8.2.2. Non-Cyclic and Cyclic Versions of Light-Dependent Reactions3 min

8.2.3. Practice 11 min

8.2.4. Practice 22 min

8.3.1. Calvin Cycle [Carbon Fixation]8 min

8.3.2. Example3 min

8.3.3. Practice 12 min

8.3.4. Practice 23 min

8.4.1. Photorespiration5 min

8.4.2. Practice 13 min

8.5.1. C4 Plants2 min

8.5.2. Practice 1

8.6.1. CAM Plants4 min

8.6.2. Practice 12 min

9. The Cell Cycle & Mitosis

53min

9.1.1. The Gene and the Genome10 min

9.1.2. Practice 11 min

9.2.1. Phases of the Cell Cycle5 min

9.2.2. Practice 12 min

9.3.1. Mitosis and Cytokinesis7 min

9.3.2. Cytokinesis2 min

9.3.3. Ploidy & C-value coefficients5 min

9.3.4. Practice 13 min

9.3.5. Practice 23 min

9.3.6. Practice 3

9.3.7. Practice 4

9.4.1. Cell cycle Control7 min

9.4.2. Putting the Breaks on the Cell Cycle4 min

9.4.3. Example1 min

9.4.4. Practice 139 sec

9.4.5. Practice 22 min

10. Meiosis

25min

10.1.1. Meiosis I10 min

10.1.2. Chromosomal Crossover3 min

10.1.3. Meiosis Nomenclature3 min

10.1.4. Practice 1

10.1.5. Practice 2

10.1.6. Practice 3

10.2.1. Meiosis II5 min

10.2.2. Example: Graphing Ploidy & C-value Coefficients4 min

11. Genetics & the Gene

1.8hr

11.1.1. History of Mendelian Genetics4 min

11.1.2. Basics of Probability for Genetics5 min

11.1.3. Example 12 min

11.1.4. Example 22 min

11.1.5. Practice 1

11.2.1. Alleles3 min

11.2.2. Genotype and Phenotype5 min

11.3.1. Incomplete Dominance and Co-Dominance3 min

11.3.2. Example4 min

11.3.3. Practice 1

11.4.1. Mendel's Law of Segregation10 min

11.4.2. Mendel's Law of Independent Assortment6 min

11.4.3. Punnett Square Rules4 min

11.4.4. Example 15 min

11.4.5. Example 29 min

11.4.10. Cheatsheet: Inheritance Terminology

11.5.1. Forked Line Method5 min

11.5.2. Probability Method4 min

11.5.3. Practice 1

11.5.4. Practice 2

11.6.1. Pedigree Analysis9 min

11.7.1. Inheritance of Autosomal Traits9 min

11.7.2. Example 1

11.7.3. Example 2

11.8.1. Inheritance of X-linked Traits

11.8.2. Example 13 min

11.11.1. Blood Types2 min

11.11.2. Practice 1

11.11.3. Pleiotropy, Epistasis and Polygenic Inheritance5 min

11.11.4. Practice 2

11.11.5. Example: Epistasis5 min

11.11.6. Practice 3

12. DNA Replication & Repair

1.8hr

12.1.1. Review of DNA Structure10 min

12.1.2. Practice 12 min

12.1.3. Practice 2

12.2.1. Meselson-Stahl Experiment9 min

12.2.2. Example: Applying the Meselson-Stahl Experiment2 min

12.2.3. Practice 12 min

12.3.1. DNA Replication in Cells14 min

12.3.2. Example: Leading and Lagging Strands2 min

12.3.3. Practice 12 min

12.3.4. Practice 23 min

12.3.5. Example: Complete the Replication Bubble4 min

12.4.1. Telomerase4 min

12.4.2. Practice 11 min

12.4.3. Practice 22 min

12.5.1. Types of DNA Mutations9 min

12.5.2. Practice 1

12.5.3. Practice 2

12.5.4. Sources of Mutation: Tautomeric Shifts7 min

12.5.5. Example: Tautomeric Shifts4 min

12.5.6. Sources of Mutation: DNA Slippage5 min

12.5.7. Sources of Mutation: Copy Number Variations3 min

12.5.8. Sources of Mutation: Mobile Elements7 min

12.6.1. Repair of Mutations During Replication [Exonuclease Activity and Mismatch Repair]10 min

12.6.2. Repair of Mutations by Mutagens [Nucleotide Excision Repair]3 min

12.6.3. Practice 12 min

13. Transcription & Translation

1.8hr

13.1.1. The Central Dogma of Biology4 min

13.1.2. Practice 1

13.1.3. Practice 22 min

13.1.4. Practice 32 min

13.2.1. Genes and mRNA8 min

13.2.2. General Structure of mRNA4 min

13.2.3. The Genetic Code8 min

13.2.4. Reading Frame3 min

13.2.5. Practice 13 min

13.2.6. Practice 22 min

13.2.7. Practice 32 min

13.2.8. Practice 43 min

13.2.9. Summary of Genes and mRNA

13.3.1. Initiation8 min

13.3.2. Elongation7 min

13.3.3. Termination4 min

13.3.4. Practice 14 min

13.3.5. Practice 22 min

13.3.6. Practice 3

13.4.1. Transcription In Eukaryotes9 min

13.4.2. Practice 1

13.5.1. RNA Maturation in Eukaryotes8 min

13.5.2. Example 3 min

13.5.3. Practice 11 min

13.5.4. Practice 23 min

13.5.5. mRNA Maturation - Theory3 min

13.6.1. Translation into Proteins9 min

13.6.2. Differences in Eukaryotic and Prokaryotic Translation3 min

13.6.3. Example 15 min

13.6.4. Example 2

13.6.5. Transcription vs. Translation Chart

13.6.6. Practice 2

13.6.7. Practice 1

14. Gene Expression & Regulation

1.2hr

14.1.1. Introduction to Regulation of Gene Expression4 min

14.1.2. Prokaryotic Levels of Regulation6 min

14.1.3. Prokaryotic Regulatory Proteins5 min

14.1.4. Types of Transcriptional Regulation5 min

14.1.5. Practice 1

14.1.6. Practice 2

14.1.7. Practice 3

14.2.1. The Tryptophan (Trp) Operon5 min

14.2.2. Trp Operon Attenuation8 min

14.2.3. The Trp Operon Summary

14.3.1. The Lac Operon5 min

14.3.2. Practice 1

14.3.3. Practice 2

14.3.4. Practice 3

14.4.1. The Lac Operon [detailed]5 min

14.4.2. The Lac Operon & Glucose Regulation [detailed]5 min

14.4.3. Lac Operon Summary

14.4.4. Example 1

14.4.5. Example 2

14.4.6. Practice 1

14.5.1. The Maltose (mal) Operon 4 min

14.6.1. Epigenetic Gene Regulation5 min

14.6.2. X-Chromosome Inactivation4 min

14.6.3. Practice 1

14.6.4. Practice 2

14.7.1. Transcription Factors, Enhancers and Repressors3 min

14.7.2. Practice 1

14.7.3. Practice 2

14.8.1. Eukaryotic Post-Transcriptional Regulation6 min

14.8.2. Practice 1

14.8.3. Practice 2

14.9.1. Translational and Post-translational Regulation2 min

14.9.2. Practice

15. Development

40min

15.1.1. Connection between Gene Expression & Development7 min

15.1.2. Cell Structure & Specialization5 min

15.1.3. Stem Cells3 min

15.2.1. Drosophila Development9 min

15.2.2. Segmentation Genes5 min

15.2.3. Example: Drosophila Development1 min

15.3.1. Overview of Amniotes2 min

15.3.2. Bird Eggs3 min

15.4.1. Reproduction & Embryonic Development2 min

15.4.2. Implantation

15.4.3. Human Development5 min

Mock Exams

ME.1. BLG 143 Midterm Mock Exam33 Qns

ME.2. Final Exam - Mock Assessment47 Qns

Leave Feedback

I Welcome

Free Activity

Welcome

0:00 / 2:27

Ask a Question

Upgrade to Wizeprep Plus and get unlimited questions answered.

Learn More

Answered

Aseel Y

Hi there, I just want to ask why Homeostasis section is not available!

Danielle S

Instructor

Thank you for bringing this to our attention and your patience in allowing us to solve the issue!

The chapter now has the content ready for you to explore and review.

Answered

Anonymous

Is glycolysis not covered in this course?

Lila H

Instructor

It is currently included in Section 5 "Energy and Metabolism"

Answered

Anonymous

What is the difference between gene flow and genetic drift 

Isaura F

Instructor

Gene flow is the transfer of genetic information from one population to another. Genetic drift is the variation of the relative frequency of a particular allele (version of a gene) within a population. Hope this helps!

Answered

Shannon W

What's neurons?

Marlon B

A nerve cell

Answered

Alexis E

whats a hydrogen bond?

Marlon B

A bond between an electrostatic attraction between a proton in one molecule and electronegative atom in the other 

Answered

Anonymous

Are there any parts of the human body that get oxygen directly from the air and not from the blood?

Isaura F

Instructor

Seems like the outer layers of skin and outer cornea (of your eyes) are able to get oxygen directly from air. 

Answered

Laura P

How does climate change affect wildlife in ontario? 

Isaura F

Instructor

"In Ontario, [one] can expect average temperatures to rise by as much as 3 to 8 degrees Celsius over the next century. Warmer temperatures will result in milder winters, longer growing seasons and a higher frequency of severe weather events such as record-breaking storms, floods, droughts and heat waves." For more info, check out: http://www.health.gov.on.ca/en/common/ministry/publications/reports/climate_change_toolkit/climate_change_health_modelling_study.pdf

Welcome to First Year Bio!
Feel free to go through this resource at your own pace.
Use the table of contents 📃 on the left to skip to parts you need help with
Watch the video ▶ or read the written lessons 📖
Speed up ⏩ or slow down ⏪ the videos 
Use the "Ask a question"❓ feature below each lesson/question any time!

This resource includes the following activities: 
   Theory lessons: I will explain and summarize new concepts
   Examples: I will walk you through how to solve problems involving these new concepts
   Practice questions: These are for you to try out on your own. Don't worry, if you get stuck, you can watch the video solutions or read the suggested written answers

Let's get started! 🚀