English

What Are the Main Characteristics of Enzyme? - Biology

Advertisements
Advertisements

Question

What are the main characteristics of enzyme?

Short/Brief Note
Advertisements

Solution

The enzyme is a protein. The main material of an enzyme is protein 

  1. It is easily influenced, by environmental change. Environmental factors include temperature, pH, and inhibitor. 
  2. It acts as catalyst The enzyme functions in accelerating chemical reaction, but the enzyme itself does not change after the reaction ends. 
  3. It functions specifically. The enzyme only catalyzes one kind of substrate and cannot function for many substrates. The term is called one enzyme one substrate. 
  4. It functions in reverse. It means the enzyme does not determine the direction of reaction, but it only functions in accelerating reaction rate until it reaches equilibrium. The enzyme also functions in substance synthesis and substance breaking down reaction. 
  5. It is required, in small amount. A small amount of enzyme is able to catalyze a chemical reaction.
shaalaa.com
  Is there an error in this question or solution?
Chapter 11: Digestive System - Long answer type [Page 115]

APPEARS IN

Selina Concise Biology [English] Class 9 ICSE
Chapter 11 Digestive System
Long answer type | Q 2 | Page 115

Video TutorialsVIEW ALL [2]

RELATED QUESTIONS

Which part of the digestive canal is involved in:

Chewing of food ______.


Describe the parts  of our tooth with the help of a labelled diagram.


The water from the digested food is mainly absorbed by


________ is the largest gland in the body.


Fill in the blank.

The _______ are used for tearing the food.


Define the following term:

assimilation


Write true or false for the below statement. Rewrite the false statements correctly.

Absorption of food takes place in small intestine


Find the odd one out. Give reasons for your choice.


Differentiate between

Small intestine and Large intestine


Write short answers

What is ingestion?


Describe the digestion of food in small intestine.


Mark odd one in the series:


Correct the spellings: HLC


The question has four options. Choose the correct answer:

The liver performs the function of


Breakdown of food into smaller molecules in our body is known as


Identify the labels i, ii, iii, and iv in the given diagram of tooth anatomy.


Draw the diagram of the alimentary canal of man and label the following parts. Mouth, Oesophagus, Stomach, Intestine.


Solve the crossword given as Figure.

Across Down
1. Cream-coloured digestive gland 2. Feeds with the help of pseudopodia
3. Undigested excretory solid residues 6. Total number of molars in one jaw of an adult
4. Organ that mixes saliva with the food 8. Largest gland
5. Point of defecation 9. Watery secretion in the mouth
7. Stored in gall bladder 11. A ruminant
10. Finger-like outgrowth in the small intestine 12. Form of food chewed by ruminants
13. Kind of taste buds    
14. Kills bacteria in the stomach    

Urea is a main excretory product in humans. How is it formed?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×