
Explore cell growth and division in this engaging biology course. Learn about the cell cycle basics, mitosis and meiosis, stem cells and differentiation, and cancer.
Explore the basics of prokaryotes and eukaryotes, and how DNA structures like chromatin, chromosomes, and genes organize in the nucleus to drive cell growth via mitosis.
Explore how cell size affects surface area to volume ratio, transport of nutrients and waste, and why cells divide into smaller daughter cells to maintain efficiency.
Explore the cell cycle, from G1, S, and G2 growth to mitosis and cytokinesis, detailing why cells divide, DNA replication, and organelle preparation for two daughter cells.
Discover mitosis in somatic cells, detailing prophase, metaphase, anaphase, and cytokinesis, spindle fibers and centromeres, metaphase plate alignment, and formation of two genetically identical daughter cells with 46 chromosomes.
This lecture explains the three cell cycle checkpoints—G1, G2, and metaphase—pausing to repair damaged DNA, ensure proper DNA replication, and align chromosomes before mitosis.
Learn how meiosis produces haploid gametes through meiosis i and ii, with crossing over and independent assortment creating genetic variation for sexual reproduction.
Explore how stem cells remain undifferentiated and become specialized cells through differentiation. Turning genes on and off produces proteins that drive this change and enable bone marrow therapies for leukemia.
Explore the biology of cancer, from internal regulators and checkpoints to external growth factors and apoptosis failure. Malignant tumors metastasize by traveling through blood vessels to distant sites.
Welcome to High School Biology - Cell Growth and Division! In this course, we'll learn about the cell cycle and all the factors that influence it. After taking biology courses for about 5 years now, I’ve realized that while biology is truly fascinating, it can also be incredibly intimidating. Biology is a really interesting topic, but it can be quite complicated, so in this course, I try to make the concepts as easy to understand as possible. In this course, we'll cover the cell cycle, how cell size plays a factor, mitosis and meiosis (and their differences), how differentiation and stem cells work, and we'll touch on cancer as well. The structure of the course is slideshows with me talking over and explaining the material. We also have some fun memes (or as fun as biology memes get) in each lecture, so you can look forward to that :). This should be a different experience than simply reading from a textbook, so I hope you enjoy. I hope to see you in the course!
This course is intended for anyone taking their first biology course, but it can also be helpful as a refresher for those wishing to review basic biology.
PS: Be sure to have a notebook handy to take notes! Biology is 90% vocab :)