Topic 2 Cells: Circulation

Question 1

• Brownian movement: random particle movement through cytoplasm by kinetic energy
• Cyclosis/Streaming: circular motion of cytoplasm to transport molecules
• Endoplasmic Reticulum: channel through cytoplasm, direct continuous passageway rom plasma membrane to nuclear membrane

Answer 1

Intracellular Circulation

Question 2

• Diffusion: suffice or food and respiration needs. Also used for transport of materials between cells and interstitial fluid around cells
• Circulatory System: required when cells are too far from external environment

Answer 2

Extracellular Circulation