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
Testez vos connaissances avec un QCM de 9 questions sur 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?
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