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Chapter 7: Cells and Their Environment. Cell Membrane 1. Function Selectively (semi-) permeable a. Some substances can pass through but others cannot.
4.2 Parts Of A Eukaryotic Cell
Concept 42.5: Gas exchange occurs across specialized respiratory surfaces page 915 Gas exchange supplies O 2 for cellular respiration and disposes of CO.
Carbon is unique because: 1. It has four valence electrons in its outer orbital. 2. It can bond with other carbon atoms to form chains of great length.
REGULATION CHEMICAL REGULATION –CHAPTER 16. Chemical vs Nervous Regulation Body systems never rest – make constant adjustments to maintain homeostasis.
Macromolecules
Macromolecules Standard I h: Students know most macromolecules (polysaccharides, nucleic acids, proteins, and lipids) in cells and organisms are synthesized.
