The central cytoplasmic region of a prokaryotic cell containing nucleic acids is called :
CDS · General Knowledge · UPSC · 2016–2026
Biology — CDS General Knowledge PYQs
195 questions from this chapter, asked in 11 CDS exams between 2016–2026.
195questions
11CDS exams
2016–2026years covered
Questions asked per year
Practice questions
Nearly all infants benefit from milk, but most adults cannot properly digest milk. If an elderly person can still digest milk, his body is producing enough of which enzyme ?
The antibiotic penicillin can kill invading bacteria without harming human cells because it targets bacterial :
A researcher is studying different types of cells. In which cell type will he/she encounter the highest number of lysosomes ?
Which one of the following is not a function of the pigment carotenoid ?
A world chess champion has curly hair, attached earlobes and freckles. Which one of the following traits is not likely to be passed on to his/her offsprings ?
In humans, which chamber of the heart receives oxygen-rich blood from the lungs first ?
Match List-I with List-II and select the answer using the codes given below the Lists :
| List-I (Structure/Organelle) | List-II (Function) |
|---|---|
| A. Mitochondria | 1. Maintenance of cell shape |
| B. Cytoskeleton | 2. Detoxification in liver cells |
| C. Smooth ER | 3. Storage of chemicals and cell enlargement |
| D. Vacuoles | 4. Cellular respiration |
Code :
| A | B | C | D | |
|---|---|---|---|---|
| (a) | 4 | 2 | 1 | 3 |
| (b) | 4 | 1 | 2 | 3 |
| (c) | 3 | 1 | 2 | 4 |
| (d) | 3 | 2 | 1 | 4 |
Which one among the following pairs of diseases and their types is not correctly matched ?
Which instrument is used to measure the blood pressure manually ?
Why practise Biology PYQs?
Biology has appeared in 11 CDS General Knowledge exams we track between 2016–2026. UPSC examiners consistently reuse concepts and question patterns from this topic — practising its previous year questions is the most reliable way to know exactly what to expect in your exam.