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Universal features of cells. Characteristics of prokaryotic cells. Surface area-to-volume ratio.
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Review your understanding of cell parts and functions in this free article aligned to NGSS standards.
Biology archive 34 units · 124 skills. Unit 1 Intro to biology. Unit 2 Water, acids, and bases. Unit 3 Macromolecules. Unit 4 Elements of life. Unit 5 Energy and enzymes. Unit 6 Structure of a cell. Unit 7 More about cells. Unit 8 Membranes and transport.
Math: Pre-K - 8th grade; Pre-K through grade 2 (Khan Kids) Early math review; 2nd grade; 3rd grade; 4th grade; 5th grade; 6th grade; 7th grade; 8th grade; 3rd grade math (Illustrative Math-aligned)
Course: High school biology (DEPRECATED) > Unit 2. Lesson 4: Eukaryotic cell structures. Organelles in eukaryotic cells. Eukaryotic cell structures review. Identifying eukaryotic cell structures.
Course: Biology archive > Unit 22. Lesson 1: Viruses. Viruses. Intro to viruses. Bacteriophages. Animal & human viruses. Evolution of viruses.
Bacterial binary fission is the process that bacteria use to carry out cell division. Learn the steps of binary fission, including copying the bacterial chromosome and forming a new cell wall.
High school biology (DEPRECATED) Course: High school biology (DEPRECATED) > Unit 2. Lesson 2: Basic cell structures. Introduction to the cell. Introduction to cilia, flagella and pseudopodia. Basic cell structures review. Identifying cell structures.
Cellular organelles and structure. Characteristics of eukaryotic cells. The nucleus. Mitochondria. Endoplasmic reticulum and golgi apparatus. Lysosomes and peroxisomes. Epithelial and connective tissue.