Sawaal
8
Q:

The enzyme that is necessary to bring about clotting of blood is 

A) peptidase B) amylase
C) lipase D) thrombokinase

Answer:   D) thrombokinase



Explanation:

The clotting of blood is a chain reaction initiated by the enzyme thrombokinase produced by the platelets. This causes prothrombin to be converted into thrombin in the presence of Ca++ion.

Thrombin combines with fibrinogen  to produce fibrin threads which entangles the corpuscles to form the clot.

Subject: Biology
Exam Prep: AIEEE , GATE
Related Questions
Q:

Yeast and mushrooms are the examples of organisms of which kingdom?

 

A) Fungi B) Monera
C) Plantae D) Protista
 
Answer & Explanation Answer: A) Fungi

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: Bank Exams

6 19025
Q:

Which of the following is the largest group of animals?

A) Nematoda B) Porifera
C) Arthropoda D) Mollusca
 
Answer & Explanation Answer: C) Arthropoda

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: Bank Exams

4 904
Q:

Plants having body that is differentiated into roots, stems and leaves and have specialized tissue for the conduction of water and other substances, fall in which group?

 

A) Bryophyta B) Thallophyta
C) Pteridophyta D) All option are correct
 
Answer & Explanation Answer: C) Pteridophyta

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: Bank Exams

7 936
Q:

Which are the special proteins in muscles that contract and relax to cause movement?

 

A) Contractile protein B) Receptor protein
C) Structural protein D) Enzymatic protein
 
Answer & Explanation Answer: A) Contractile protein

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: Bank Exams

3 40770
Q:

The richest source of Vitamin D from food is

A) Cotton seed oil B) Olive oil
C) Cod liver oil D) Sunflower oil
 
Answer & Explanation Answer: C) Cod liver oil

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: AIEEE , Bank Exams

5 834
Q:

Oncology is associated with treatment of

A) Osteoporosis B) Diabetes
C) Cancer D) Renal failure
 
Answer & Explanation Answer: C) Cancer

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: Bank Exams

3 859
Q:

The group of crop plant that are vegetatively propagated is:

 

A) potato,papaya and banana B) Sugarcane,potato and banana
C) groundnut,drumstick and cashew nut D) Onion,coriander and lime
 
Answer & Explanation Answer: B) Sugarcane,potato and banana

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: Bank Exams

8 49979
Q:

The O-T-C medicine Crocin is an

A) Analgesic B) Antipyretic
C) Analgesic and antipyretic D) Antiseptic
 
Answer & Explanation Answer: C) Analgesic and antipyretic

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: Bank Exams

11 1035