Unit 2: Chemistry of Life

The Properties of Water



Relevant Science Standards:

SB1. Students will analyze the nature of the relationships between structures and functions in living cells.

b. Explain how enzymes function as catalysts.
c. Identify the function of the four major macromolecules (i.e., carbohydrates, proteins, lipids, nucleic acids).
d. Explain the impact of water on life processes (i.e., osmosis, diffusion).
Unit 2 Overview

Big Ideas:
Atoms, Ions, and Molecules
Properties of Water
Carbon-Based Molecules
Chemical Reactions
Enzymes

Textbook Reference:
Chapter 2

Essential Questions:
1. What elements does carbon bond with to make up life’s molecules?
2. Why is water such a unique compound? 
3. What are the functions of the four groups of macromolecules? 
4. How does one know that enzymes speed up chemical reactions? 
5. How are rates of enzyme activity in cells affected by various 
factors such as pH or temperature? 

Important Vocabulary:
Atom
Compound 
Ionic bond 
Covalent bond 
Hydrogen bond 
Cohesion 
Adhesion 
Solution 
Solute 
Solvent 
Acid 
Base 
Monomer 
Polymer 
Activation Energy 
Catalyst 
Enzyme 
Substrate
Lipid
Carbohydrate
Fatty Acid


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