Economic Importance of Fungi Short Answer Biology Class-9 ICSE Selina Publishers Part B

Economic Importance of Fungi Short Answer Biology Class-9 ICSE Selina Publishers Solutions Chapter-9 Part B. Step By Step ICSE Selina Concise Solutions of Chapter-9 Economic Importance of Fungi with Exercise-9B including MCQs, Very Short Answer Type, Short Answer Type, Long Answer Type and Structured/Application Questions Solved Visit official Website CISCE for detail information about ICSE Board Class-9.

Economic Importance of Fungi Exe-9B Short Answer Biology Class-9 ICSE Concise Selina Publishers

Board ICSE
Publications Selina Publication
Subject Biology
Class 9th
Chapter-9 Economic Importance of Bacteria and Fungi
Book Name Concise
Topics Solution of C. Short Answer Type Part B
Academic Session 2023-2024

C. Short Answer Type 

Economic Importance of Fungi Class-9 Biology Concise Solutions  

Page 100

Question 1.

Define the terms:

(a) Fermentation

(b) Spawning

Answer:

(a) Fermentation is a process in which the microorganisms (yeast and bacteria) break down carbohydrates into simpler products (ethanol or lactic acid) in the absence of oxygen.

(b) Spawning is defined as introduction of mushroom seed or mycelium of selected mushroom into compost.

Question 2.

Where can you the mould Rhizopus most easily found?

Answer:

Rhizopus is the common bread mould. It grows not only on bread, but also on a variety of organic matter such as paper, wood, cloth, animal dung, leather goods and food materials such as fruit, bread, pickles, chapati, etc. particularly in warm and humid climate.

Question 3.

Write the chemical equation of fermentation.

Answer:

The chemical equation of fermentation is:

The chemical equation of fermentation is:

Question 4.

Name three vitamins which are richly found in mushrooms.

Answer:

Three vitamins which are richly found in mushrooms are:

  • Niacin
  • Pantothenic acid
  • Biotin

Question 5.

Describe the role of certain fungi in industrial production.

Answer:

(i) Used to prepare wine and alcohol

(ii) Used in the cultivation of mushroom

(iii) Used to prepare enzymes

(iv) Used to prepare antibiotics

(v) Used to prepare alcoholic beverages

(vi) Used to prepare bakery products and fermented foods

(vii) Used to prepare organic acids

Question 6.

Differentiate between:

(a) Saprophyte and parasite

(b) Aerobic and anaerobic respiration with regard to products formed.

Answer:

(a) Differentiate between: Saprophyte and parasite
Saprophyte Parasite
Obtains nourishment from dead and decaying organic matter Obtains nourishment from the body of the living host
(b) Differentiate between:Aerobic and anaerobic respiration with regard to products
Aerobic
respiration
Anaerobic
respiration
Products – Carbon dioxide (CO2), water (H2O) and energy (ATP) Products – Ethanol (2C2H5OH), carbon dioxide (CO2) and energy (ATP)

 

—  : End of Economic Importance of Fungi Part (B) C. Short Answer Class-9 ICSE Biology Solutions :–

Return to  Return to Concise Selina ICSE Biology Class-9 

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