Osmosis — mechanism?
Water diffuses across a semi-permeable membrane from dilute to concentrated solution.
Cells — basic units of?
Life's basic units
Cell types — differences?
Prokaryotes lack nucleus; eukaryotes have nucleus.
Eukaryotic cells — contains?
Nucleus, mitochondria, ribosomes; plant cells have additional structures
Mitochondria — role?
Site of aerobic respiration and energy transfer.
Bacterial cells — lack?
Nucleus, have circular DNA, plasmids
Diffusion — movement?
Particles from high to low concentration
Active transport — requires?
Energy to move against concentration gradient
Cell cycle — process?
Growth, DNA replication, mitosis
Stem cells — ability?
Differentiate into various cell types
Test your knowledge with 9 questions on Cell Biology Essentials.
1. What is a key difference between prokaryotic and eukaryotic cells?
2. Which component is responsible for controlling cell activities and contains genetic material?
Review the complete course in the revision sheet for Cell Biology Essentials.
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