overview of cell eukaryotic cell structure (video)
overview of their difference (Khan Academy module)
cell walls (article plus lots of embedded videos)
chloroplasts and cell walls (article)
active vs passive transport (BOGOBiology video)
active transport, passive transport, summary (articles)
cool live cell microscopy (videos)
cell crawling (iBiology video series)
cell motility and flagella (article)
10 crazy things cells do (iBiology lecture series)
interactive models of meiosis and mitosis
cell division time-lapse (NatGeo video)
meiosis vs mitosis (slide deck)
meiosis vs mitosis (Khan academy video)
stages of mitosis (video)
stages of meiosis (video)
cell cycle and cancer (Amoeba sister video)
membrane structure and proteins (article)
membrane composition (review article)
overview (NIH article+videos)
the electron transport chain (ETC) (HarvardX video)
overview (article)
the nucleolus (NIH article)
smooth vs rough (article)
protein trafficking (Nature article)
review (article)
overview (NIH article)
what is the immune system? (video)
how does the immune system work? (video series)
immune cells (NIH article)
types of immune cells (iBiology video)
what are antibodies? (NIH article)
how are antigens identified? (CDC article)
Biology for Non-Majors: full book available through LibreTexts
The Microcosmos (YouTube Channel)