diff --git a/Grade 10/Science/SNC2DZ/Unit 2: Biology.md b/Grade 10/Science/SNC2DZ/Unit 2: Biology.md
index 8fecdb2..76d7a58 100644
--- a/Grade 10/Science/SNC2DZ/Unit 2: Biology.md	
+++ b/Grade 10/Science/SNC2DZ/Unit 2: Biology.md	
@@ -120,8 +120,7 @@ A person contains roughly 100 trillion cells
 ### Centrioles and centrosomes
  - Made of same protein as cytoskeleton
  - A centrosome is a pair of centrioles
- - Important to cell division in animal cells
- - Create cilia and flagella (e.g., small hair-like things that swipe dirt out of lungs and tails of sperm, respectively)
+ - Creates spindle fibres for use in mitosis
 
 ### Lysosomes
 
@@ -162,18 +161,21 @@ A person contains roughly 100 trillion cells
     - e.g., red blood cells, hair cells, skin, injuries
 
 ### Cell cycle
- - Interphase
+#### Interphase
     - G1
+         - Regular cell activity
+         - Cell growth
     - S
+         - DNA replication
     - G2
- - Mitosis
-    - Occurs only in eukaryotic cells
+         - Organelle division
+         - Extreme cell growth
+#### Mitosis
     - Prophase
-    - Prometaphase
     - Metaphase
     - Anaphase
     - Telophase
- - Cytokinesis
+#### Cytokinesis
  - G0
     - Cell no longer divides
     - Outisde of cell cycle
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