Easy Detailed Notes

• PEM, indigestion, constipation, vomiting, jaundice and diarrhoea is an important topic of Digestion and Absorption.
• First understand what PEM, indigestion, constipation, vomiting, jaundice and diarrhoea means, then learn its example, diagram and exam application.
• Use NCERT/CBSE terminology in written answers and avoid vague descriptions.
• Connect this topic with the previous and next topic in the chapter to build continuity.
• Read the definition, then connect it with structure, function and example.
• Make a simple diagram or flowchart for the topic.
• Understand keywords because exam answers need precise biological language.
• Revise the topic with both board-style and MCQ-style questions.

Topic-wise Explanation

Core idea: PEM, indigestion, constipation, vomiting, jaundice and diarrhoea should be understood through definition, example, diagram and biological significance. Students should not only memorize the term; they should connect it with the chapter process and exam application.

How to write in exam: Start with a clear definition, add 3-5 key points, include a labelled diagram or flowchart where possible, and finish with significance/example.

NEET/MCQ angle: Read every keyword carefully. Many Biology MCQs are statement-based, example-based or diagram-based, so revise exact terms and exceptions.

How to Study This Post

1. Read the definition and underline keywords.
2. Draw the diagram/flowchart once without looking.
3. Make a one-line example for quick recall.
4. Solve 5 MCQs and 2 short-answer questions from this topic.
5. Revise after 24 hours and again before the weekly test.

Common Mistakes to Avoid

• Do not skip diagrams because Biology answers are often diagram-supported.
• Do not learn examples without their identifying features.
• Do not mix similar terms; compare them in a small table.
• Do not go beyond syllabus before completing NCERT/CBSE basics.