diff --git a/Session_2.ipynb b/Session_2.ipynb
index 108b912..db20c92 100644
--- a/Session_2.ipynb
+++ b/Session_2.ipynb
@@ -381,7 +381,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Tuples _cannot_ be altered once they have been created, if you try to do so, you'll get an error."
+    "Tuples _cannot_ be altered once they have been created that is Tuples are immutable by nature, if you try to do so, you'll get an error."
    ]
   },
   {
@@ -418,7 +418,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "You can add elements to the end of a list with <tt>append()</tt>"
+    "You can add elements to the end of a list with <tt>append()</tt> which is a predefined function"
    ]
   },
   {