Page 32 - Science Course 2 (Book 1)

Mo2-L1a: How Does Water Dissolve Ionic Mo2-L1b: Why are Organic Compounds
Substances? Important?

Water is able to easily dissolve ionic substances Why are Organic Compounds
because the positive ions in the compound are Mo2-L1b Important?
attracted to the oxygen end of the molecules and the
negative ions are attracted to the hydrogen end of KEY CONCEPTS:
the molecules. 1. What are the functions of organic compounds in

+ + the human body?
2. How does the body’s organization enable it to
+ + function?
+ + + + +
+
+ + + + +
+ +
+
+ + Water Molecule Vocabulary A-Z
+
+ Let us learn some vocabulary
salt dissolve in
water
macromolecule
This allows ions to travel through the body dissolved
in water. substance that forms from joining many small
molecules together.
Key Concept Four Type of Macromolecules
How Does Water Dissolve Ionic Substances?

How does water help the body obtain ionic
substances?

Dependent

monosacccharide a simple sugar.

amino acid
the building block of protein.
SUMMARY

How Does Water Dissolve Ionic Substances? Amino Acid Structure
Elements are substances that cannot be Hydrogen
broken down or transformed into other
elements during chemical reactions. Amino Carboxyl
H H O
Water dissolves ionic substances easily.
+ H N C C
H O –
R

R-group
(variant)

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