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Do Now. Regents Review Day 05. The Cell. The Cell Review. The organelles in a cell work together to carry out the metabolic processes that are required to stay alive. The Cell Review. The Cell Review. Levels of organization: Organelles Cells Tissues Organs Organ systems Organism.
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Regents Review Day 05 The Cell
The Cell Review • The organelles in a cell work together to carry out the metabolic processes that are required to stay alive.
The Cell Review • Levels of organization: • Organelles • Cells • Tissues • Organs • Organ systems • Organism
The Cell Review • Organelles: • Nucleus – “the brain” – stores information and controls cell functions, like the brain • Ribosomes – make proteins • Mitochondria – “powerhouse” makes energy in the form of ATP during cellular respiration.
The Cell Review • Organelles: • Cell membrane: • Surrounds and protects the cell, like skin • Allows gas exchange, like lungs • Allows waste to leave, like excretory system
The Cell Review • Receptors are proteins on the surface of the cell that receive signals (reception) and allow cells to communicate with each other
The Cell Review • Transport: • Diffusion • No energy needed • High to low concentration • Active Transport • Uses ATP energy • Low to high concentration • Osmosis • Diffusion of water
Homework #38 R.B. p. 13-16, #4, 7, 10, 13, 27 (full answers only)