MDCAT Biology — Classification & Diversity
Classification & Diversity is a core Biology topic in the PMDC MDCAT syllabus, covering 10 subtopics. Below are the subtopics to revise, how often the topic appears in past papers, and real past-paper MCQs to try.
Subtopics (10)
- Animal Phyla
- Body Cavities (Coelom Classification)
- Classes of Fish (Agnatha, Chondrichthyes, Osteichthyes)
- Kingdom Fungi
- Kingdom Prokaryotae (Bacteria)
- Kingdom Protista
- Kingdoms
- Phylum Arthropoda
- Phylum Chordata (Class Mammalia)
- Phylum Platyhelminthes
How Classification & Diversity is tested
Across the 16 MDCAT past papers on ParhaiKrlo, Classification & Diversity accounts for 39 questions. It appears in 4 of them, about 9.8 questions a paper. The heaviest was MDCAT 2010, with 13 questions, and the most recent is MDCAT 2011, with 7.
| Paper | Questions |
|---|---|
| MDCAT 2011 | 7 |
| MDCAT 2010 | 13 |
| MDCAT 2009 | 8 |
| MDCAT 2008 | 11 |
Classification & Diversity MCQs from the MDCAT past papers
Try each one before opening the answer. Each comes with a short explanation.
- Q1 · MDCAT 2011 · Classification & Diversity
The structure which contains the gene for drug resistance bacteria are
- A.Nucleoids
- B.Mesosomes
- C.Chromatin Bodies
- D.Plasmids
Show answer
Answer: D. Plasmids — The genes conferring drug (antibiotic) resistance in bacteria are typically located on plasmids — small, circular, extra-chromosomal pieces of DNA.
- Q2 · MDCAT 2010 · Classification & Diversity
Book lungs are present in arthropods for exchange of gases in class:
- A.Crustacea
- B.Insecta
- C.Myriapoda
- D.Arachnida
Show answer
Answer: D. Arachnida — Book lungs for gas exchange are characteristic of the class Arachnida (spiders, scorpions).
- Q3 · MDCAT 2009 · Classification & Diversity
Antibiotics act against:
- A.Bacterial Diseases
- B.Allergies
- C.Bacterial and Viral Diseases
- D.Viral Diseases
Show answer
Answer: A. Bacterial Diseases — Antibiotics specifically target bacterial diseases; they have no effect on viruses.