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
Q:

Match the following.

 

 

A) I – 2, II – 3, III – 1   B) I – 1, II – 3, III – 2  
C) I – 2, II – 1, III – 3   D) I – 3, II – 2, III – 1
 
Answer & Explanation Answer: D) I – 3, II – 2, III – 1

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: AIEEE , Bank Exams

0 11595
Q:

Which part of the human reproductive system helps the embryo get its nutrition from the mother's blood?

A) Placenta B) Fallopian tube
C) Uterus D) Cervix
 
Answer & Explanation Answer: A) Placenta

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: AIEEE , Bank Exams

3 666
Q:

The universal natural auxin of plants is

A) IBA B) Citric auxin
C) NAA D) IAA
 
Answer & Explanation Answer: D) IAA

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: AIEEE , Bank Exams

0 616
Q:

Anaemic condition is due to

A) Deficiency of platelets B) Deficiency of RBC
C) Deficiency of WBC D) Deficiency of oxidants
 
Answer & Explanation Answer: B) Deficiency of RBC

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: Bank Exams

0 578
Q:

Which organ is not a gland?

A) Adrenal B) Liver
C) Pituitary D) Gall bladder
 
Answer & Explanation Answer: D) Gall bladder

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: AIEEE , Bank Exams

2 655
Q:

Yellow fever is mainly transmitted among humans by

A) Female mosquito bite B) Male mosquito bite
C) Water D) Air
 
Answer & Explanation Answer: A) Female mosquito bite

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: Bank Exams

2 577
Q:

Slow-growing large coloured patches on the bark of trees are the examples of symbiotic life forms called ______.

 

A) Aphids B) Egrets
C) Shrimps D) Lichens
 
Answer & Explanation Answer: D) Lichens

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: Bank Exams

2 685
Q:

Blood is a connective tissue embedded in which type of intercellular matrix?

 

A) Jelly like B) Fluid
C) Dense D) No option is correct
 
Answer & Explanation Answer: B) Fluid

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: AIEEE , Bank Exams

1 10857