SSC CGL Biology · Free notes
Cell Biology: SSC CGL Biology
Cell Biology has 31 questions in the SSC CGL Tier I bank: 14 from the 2023 shifts, 11 from the 2024 shifts and six from the 2025 shifts. Twenty-five ask about the parts of a cell, mostly an organelle and its job; the other six ask about division, DNA copying and respiration. Each page gives the pairs to learn, with the swap SSC uses as a decoy.
The handout has every subtopic, worked example, formula and trap with answers shown. The formula sheet is the chapter’s formulas and traps alone, on one page.
Subtopic notes
Cell Structure and Organelles
25 PYQsThe cell wall and membrane with the people who studied them, each organelle and its job, and how prokaryotic cells such as bacteria differ from eukaryotic ones.
Cell Division and Respiration
6 PYQsThe enzymes that copy DNA, the first stage of meiosis and the word chromatin, and where each step of respiration happens and which step makes the most ATP.
Formula & revision sheet
0 formulas · 5 reference tables · 5 gotchas across all subtopics — the exam-eve cheat-sheet
Formula & revision sheet
0 formulas · 5 reference tables · 5 gotchas across all subtopics — the exam-eve cheat-sheet
Reference tables (3)
Watch out for (3)
- The nucleolus is not plant-only→ Cell wall, membrane and early discoveries
- Fungi have no chloroplasts→ Organelles and their jobs
- Slime layer loose, capsule thick→ Prokaryotic cells
Reference tables (2)
Respiration and ATP3 rows
Watch out for (2)
- Leptotene is only the start→ DNA copying and cell division
- Glycolysis is outside the mitochondria→ Respiration and ATP
PYQ weightage by concept
5 concepts · 31 PYQs — where the marks actually sit, so you know what to drill first
PYQ weightage by concept
5 concepts · 31 PYQs — where the marks actually sit, so you know what to drill first
| Concept | PYQs | Share |
|---|---|---|
| Organelles and their jobs | 12 | 39% |
| Cell wall, membrane and early discoveries | 8 | 26% |
| Prokaryotic cells | 5 | 16% |
| Concept | PYQs | Share |
|---|---|---|
| DNA copying and cell division | 3 | 10% |
| Respiration and ATP | 3 | 10% |
Test yourself on Cell Biology
15 past SSC CGL questions from this chapter, timed at 9 minutes and marked the way the exam marks it. You see your score and every answer the moment you finish. Free to start.