Biology questions with answers

2,759 multiple-choice questions. Open any question for its answer and explanation.

Questions asked in State PSC and UPSC prelims, by topic. Each topic also has notes to read.

Read the notes: Circulatory System →

1. From which among the following are blood clotting factors released?Asked in UPSC CDS 1 2024 · MPSC CS Prelims 2021
2. During Krebs cycle in respiration, fumaric acid gets converted into malic acid byAsked in MPSC CS Prelims 2022
3. In blood, platelets are required for:Asked in UPSC NDA 2 2015
4. In an undamaged blood vessel, conversion of Prothrombin to Thrombin is prevented byAsked in PPSC CS Prelims 2018
5. Which one of the following is the major function of platelets ?Asked in UPSC CAPF 2020
6. In some viral infections, number of platelets are reduced quickly. Platelets are essential because :Asked in UPSC CAPF 2023
7. Which of the following is essential for blood clotting?Asked in APPSC Draughtman 2008
8. Bleeding is stopped by applying FeCl₃ solution becauseAsked in WBCS Main Paper 4 2022
9. Which one of the following blood clotting factors is known as “Hageman Factor” ? IIAsked in Food Safety Officer 2019
10. In transfusion, blood must be compatible not only in blood type but also inAsked in BPSC Prelims Exam 67th Cancelled
11. The universal acceptor blood group isAsked in BPSC Prelims Exam 67th Cancelled
12. Which of the following situations will be fatal to second foetus ?Asked in MPSC CS Prelims 2019
13. A person met with an accident and there is no time to check his blood group, which of the following blood group, which of the following blood should be given to him ?Asked in RPSC RAS Prelims 2013
14. Mother - foetus Rh blood type incapability problems can occur if the mother is ...................... and her foetus is ......................Asked in RPSC RAS Prelims 2021
15. The Red Blood cells of a person with Blood group 'O' contains Agglutinogen :Asked in RPSC RAS Prelims 2023
16. For human blood transfusion, which blood group Is known as universal donor?Asked in UPPCS Prelims 2016
17. A man whose blood group is not known meets with a serious accident and needs blood transfusion immediately. Which one of the blood groups mentioned below and readily available in the hospital will be safe for transfusion?Asked in UPPCS Prelims 2001
18. Rh-factor is associated withAsked in Clerk GR II Comb. Comp. Exam 2013
19. Which of the following blood group has both surface antigens A and B on the RBCs? - Question not attemptedAsked in Deputy Jailor 2024
20. Which of the following blood group is referred to as a universal recipient?Asked in Head Master Praveshika School (Sanskrit Edu.) 2021
21. Antibodies in plasma of blood group AB is/ areAsked in Junior Accountant and TRA 2013
22. The universal recipient blood group is BAsked in Assistant Conservator of Forest (ACF) 2012
23. Which of the following discovered ABO blood groups and received the Nobel prize ?Asked in Forest Guard Examination 2022
24. A universal blood donor has blood typeAsked in Forest Officer (RFO) 2018
25. A person of which blood group can be universal donor ?Asked in STAFF NURSE UNANI 2023