General introduction and properties of enzyme – Basic level mcq

General introduction and properties of enzyme – Basic level mcq

Dear Readers,

Compared to other sections, botany is considered to be the most scoring section. If prepared thoroughly, botany can help students to secure a meritorious position in the exam. These questions are very important in achieving your success in Exams after 12th.

Q1. Who first used the term "Enzyme"

•   J.B. Sumner
•   Kuhne
•   Thompson
•   Garnier

Kuhne

Q2. Biological catalysts are called

•   Auxins
•   Gibberellins
•   Enzymes
•   All the above

Enzymes

Q3. Who was able to crystallise urease enzyme into pure crystalline protein form

•   J.B. Sumner
•   Garnier
•   Thomas
•   Wilkins

J.B. Sumner

Q4. The protein part of enzyme is known as

•   Holoenzyme
•   Apoenzyme
•   Isoenzyme
•   All of the above

Apoenzyme

Q5. An average cell contains about

•  1000 enzymes
•  2000 enzymes
•   3000 enzymes
•  More than 5000 enzymes

3000 enzymes

Q6. Which one of the following enzyme is composed of simple protein

•  Peroxidase
•  Phosphoglyceromutase
•  Proteinase
•  Amylase

Proteinase

Q7.  Which one of the following enzyme is not composed of simple protein

•  Amylase
•  Pepsin
•  Urease
•  None of the above

None of the above

Q8. Molecular weight of enzyme is

•  Less than 5000
•  5000 to 10000
•  10000 to 20000
•  More than 40000

More than 40000

Q9. Enterokinase converts

•  Trypsinogen to trypsin
•  Pepsinogen to pepsin
•  Both (a) and(b) are correct
•  None of these

Trypsinogen to trypsin

Q10. Most of the biochemical reactions differ from those occurring in the non living world in

•  Requiring energy
•  Releasing energy
•  Being enzymatic
•  Being spontaneous

Being enzymatic