Microfilaments are protein filaments in eukaryotic cell cytoplasm. Made up of two strands of actin, about 7 nm in diameter. Flexible and strong, resisting multi-piconewton compressive forces
Eukaryotic cells contain membrane-bound organelles like nucleus and mitochondria. Eukaryotes include plants, animals, fungi, and protists. Eukaryotic cells are larger and more complex than prokaryotic cells
Cells are the basic structural and functional units of living organisms. Organelles are cellular components that perform specific functions. Organelles are classified based on their membrane presence
Plant cells are eukaryotic, rectangular in shape and larger than animal cells. They contain membrane-bound organelles and a nucleus. Plant cells have special organelles like cell wall, vacuole and plastids
Endoplasmic reticulum is a membrane-bound organelle found in both plants and animals. About 50% of total cell membrane surface is provided by ER. ER forms interconnected sub-compartments called rough and smooth ER
Cytoskeleton is a system of fibrillar structures in cell cytoplasm. Composed of microfilaments, microtubules, and intermediate fibers. Microfilaments are 3-5 nm thick, microtubules 15-20 nm, intermediate filaments 8-10 nm