Sawaal
11
Q:

Biological catalysts are protein molecules which

1. speed up a chemical reaction

2. remain unchanged after reaction

3. function optimally at 37 deg C.

4. do not have an enzymatic activity

Select the correct answer using the code given below.

A) 1 only B) 1, 2 and 3
C) 2 and 3 only D) 1, 3 and 4

Answer:   B) 1, 2 and 3



Explanation:

Enzymes are biological catalysts. Enzymes are the catalysts involved in biological chemical reactions.

A fundamental task of proteins is to act as enzymes—catalysts that increase the rate of virtually all the chemical reactions within cells.

A catalyst remains chemically unchanged itself at the end of a reaction.

Each enzyme has a temperature that it works optimally in, which in humans is around 98.6 degrees Fahrenheit, 37 degrees Celsius –the normal body temperature for humans.

Subject: Biology
Exam Prep: Bank Exams
Related Questions
Q:

Parthenocarpy is defined as

A) Development of root without fertilisation B) Development of fruit without fertilisation
C) Development of fruit with fertilisation D) Development of root with fertilisation
 
Answer & Explanation Answer: B) Development of fruit without fertilisation

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: AIEEE , Bank Exams

2 618
Q:

___ is a multicellular organism.

A) Mycoplasma B) Paramoecium
C) Agaricus D) Cyanobacteria
 
Answer & Explanation Answer: C) Agaricus

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: Bank Exams

0 611
Q:

___ is known as a disease mostly caused by occupational health hazards.

A) Syphilis B) Cirrhosis
C) Silicosis D) Parkinson's
 
Answer & Explanation Answer: C) Silicosis

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: AIEEE , Bank Exams

0 647
Q:

The instrument used to examine a person's digestive tract is called ___.

A) Oscilloscope B) Microscope
C) Endoscope D) Radiograph
 
Answer & Explanation Answer: C) Endoscope

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: AIEEE , Bank Exams

2 671
Q:

In human body, vertebrae are part of ___.

A) Intestine B) Liver
C) Spinal cord D) Brain
 
Answer & Explanation Answer: C) Spinal cord

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: AIEEE , Bank Exams

1 652
Q:

Allergy Screening Blood Test for human beings does not include ___.

A) RAST B) ELISA
C) IgE D) Hemoglobin A1C
 
Answer & Explanation Answer: D) Hemoglobin A1C

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: AIEEE , Bank Exams

1 682
Q:

_____ is not caused by airborne transmission.

 

A) Tuberculosis B) Chickenpox
C) Measles D) Hepatitis B
 
Answer & Explanation Answer: D) Hepatitis B

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: Bank Exams

1 12170
Q:

What is the basis of classifying various plant tissues as meristematic tissue and permanent tissue?

 

A) Size B) Dividing capacity
C) Location D) No option is correct
 
Answer & Explanation Answer: B) Dividing capacity

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: AIEEE , Bank Exams

0 14360