NEET UG 2021 · Zoology · Question 165

NEET 2021 Zoology, question 165

Question 165 of the NEET 2021 paper (code O1) is a Zoology question from Body Fluids and Circulation. Its idea, Blood Coagulation, was asked 3 times, in 2021, 2022 and 2026, across NEET 2017–2026. The NTA final answer key gives option 3.

Updated 2026-10-08

Q165 · Zoology

Which enzyme is responsible for the conversion of inactive fibrinogens to fibrins ?

1 Epinephrine 2 Thrombokinase 3 Thrombin Official answer 4 Renin

Official answer: option 3 · NTA final answer key

Same idea

Blood Coagulation, in other papers

NEET asked this idea 3 times, in 2021, 2022 and 2026. The other 2 questions below.

2026 Q 117 Which of the following statements is incorrect? One-line MCQ \cdot Easy 2022 Q 162 Given below are two statements : Statement I : The coagulum is formed of network of threads called thrombins. Statement II : Spleen is the\dots Two statements \cdot Easy

Blood Coagulation: every question and how it was framed

The chapter

Body Fluids and Circulation in ten years of NEET

21 questions from 2017–2026, asked in 10 of 10 papers, about 2.0 a paper. Blood Composition, Groups and Coagulation alone had 8.

Chapter analysis Study this chapter Practise this chapter

Blood Coagulation, in other papers

Body Fluids and Circulation in ten years of NEET

Body Fluids and Circulation: questions per paper