
This is the first lecture of our course. It will define biology is and explain the characteristics of life. Download the fill-in notes to accompany the lecture if you are looking to be active during the video. By writing down information, you will use more "brain-power" as you process and organize new ideas. This will allow you to recall more than just listening/watching alone. Because of Udemy time limits on videos, I will break lectures into multiple parts (when necessary.)
This is part 2 of the first lecture.
Explore how negative feedback loops restore homeostasis to a set point and how positive feedback loops amplify deviations; understand metabolism and enzyme-driven production.
This 4-part lecture will cover the chemistry of biology. Part 1 will go over the structure of atoms, subatomic particles, the periodic table and isotopes.
Part 2 will explain bonding and ion formation.
Part 3 explains the formation of the ionic bond and properties of ionic compounds.
Part 4 explains covalent bonding and hydrogen bonding.
This lecture will explain water's integral connections to life.
This multi-part lecture will explain the structure and functions of the building blocks of living matter. It will also explain the mechanism of building polymer from monomers.
Explore carbohydrates—from monosaccharides such as glucose to fructose and disaccharides like maltose and sucrose—formed by dehydration synthesis and glycosidic linkages; compare starch, glycogen, and cellulose.
Explore the plasma membrane’s selective permeability, fluid mosaic structure, and the roles of phospholipid bilayer, cholesterol, glycoproteins, glycolipids, and embedded proteins in transport and signaling.
Explore how the asymmetrical cell membrane governs selective permeability through transport proteins and diffusion. Understand osmosis, water balance, and tonicity in response to concentration gradients.
Explore the cell cycle, including interface and mitosis, with G1, S, and G2 phases, checkpoints, growth signals, p53, DNA repair, and apoptosis.
See how mitosis creates identical daughter cells with a diploid chromosome set, while meiosis forms haploid gametes, as chromatin condenses into chromosomes and the spindle moves them.
Learn how cytokinesis splits cells into two genetically identical daughters: animals by cleavage furrow, plants by a cell plate, and bacteria by binary fission.
Explore human meiosis and fertilization, where gonads produce haploid gametes, crossing over creates diversity, and fertilization forms a diploid zygote from 46 chromosomes.
Explore meiosis and meiotic errors, including aneuploidy from nondisjunction, yielding monosomy and trisomy, with cases like Turner syndrome, Klinefelter syndrome, and Down syndrome, and explain how gametes become haploid.
This lecture will explain how DNA entered the scientific realm as the genetic material. Several famous experiments will be explained as well as the connection to figuring out DNA's structure. In parts 2 and 3, DNA replication will be explained.
Explore DNA structure, from the sugar-phosphate backbone to nitrogenous bases, including A-T and G-C pairing, the double helix, and semiconservative replication.
Explore how origins of replication open replication bubbles, creating replication forks where leading and lagging strands are synthesized with primers, DNA polymerases, and ligase coordinating Okazaki fragments.
Understand transcription copying DNA into RNA with RNA polymerase and a template strand. Explore RNA processing in eukaryotes, including capping, poly-A tails, intron removal, exon joining, and translation with tRNA.
Explore translation as ribosomes translate mRNA into growing polypeptides, detailing initiation, elongation, termination, with tRNA binding at the A, P, and E sites and post-translational modifications.
This course will provide students with a basic understanding of an introductory level biology experience. It will contain video lectures and you will be provided with fill-in lecture notes, as well as end of section quizzes. It is up to you how you would like to experience this course, fast-paced for upcoming test preparation -or more slow-paced for learners that want to take their time. Either way, you'll be building a foundation for further biology topics if you choose to continue your adventure!
The course will cover most major aspects of a biology experience in high school or introductory college course. However, It can be useful to students (at any level) looking for additional help or prep in biology topics. The information presented will help you fill your personal science skill set and be applicable to the natural world around you. We will work all the way through what is called "the central dogma of biology", an informational pathway from DNA to molecular products. Don't worry, it will go step by step.
I have 25 years of experience teaching biology and chemistry at both the high school and collegiate level. The course will be taught with an appreciation for life's intricate processes and applications to the real world will be integrated into lectures (when possible.)
Hopefully, you will complete the course with a better understanding of how cells work and are a key component and building block of the natural world.