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:

___, found in blood, is responsible for oxygen transportation.

A) WBC B) Plasma
C) Platelets D) RBC
 
Answer & Explanation Answer: D) RBC

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: AIEEE , Bank Exams

4 728
Q:

Which of the following is not a hormone found in animals?

 

 

A) Insulin B) Auxins
C) Thyroxin D) Adrenaline
 
Answer & Explanation Answer: B) Auxins

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: Bank Exams

1 16588
Q:

Name the organ where the embryo develops:

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

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: AIEEE , Bank Exams

0 626
Q:

Which of the following animal is not triploblastic?

A) Earthworm B) Ascaris
C) Jelly fish D) Planaria
 
Answer & Explanation Answer: C) Jelly fish

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: Bank Exams

1 714
Q:

Bacteria, blue-green algae or cyanobacteria and mycoplasma are examples of organisms of which kingdom?

 

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

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: Bank Exams

0 609
Q:

Which type of epithelial tissue allows transportation of substances through a selective permeable surface in the lining of food vessels or lung alveoli?

 

A) Simple squamous epithelium B) Stratified squamous epithelium
C) Ciliated columnar epithelium D) Cuboidal epithelium
 
Answer & Explanation Answer: A) Simple squamous epithelium

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: Bank Exams

0 638
Q:

Which of the following is a bisexual flower?

A) Cucumber B) Mustard
C) Watermelon D) Papaya
 
Answer & Explanation Answer: B) Mustard

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: Bank Exams

1 678
Q:

Human blood platelets releases ___ which helps in clotting of blood.

A) Prothrombin B) Fibrin
C) Fructose D) Sucrose
 
Answer & Explanation Answer: A) Prothrombin

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: AIEEE , Bank Exams

0 761