Biology · Textbook solutions

Enhancement of Food Production

Every solved example, exercise, and miscellaneous question, in the order the textbook teaches them. Plus every board question asked from this chapter. · 32 questions

Exercise

32 q

Q1. Multiple Choice Questions

Practice · 9

Multiple Choice Questions.
Ex Q1(1) $Antibiotic Chloromycetin is obtained from .....................$
Tap an option to check your answer.
Ex Q1(2) $Removal of large pieces of floating debris, oily substances, etc. during sewage treatment is called ................$
Tap an option to check your answer.
Ex Q1(3) $Which one of the following is free living bacterial biofertilizer?$
Tap an option to check your answer.
Ex Q1(4) $Most commonly used substrate for industrial production of beer is .............$
Tap an option to check your answer.
Ex Q1(5) $Ethanol is commercially produced through a particular species of ..............$
Tap an option to check your answer.
Ex Q1(6) $One of the free-living anaerobic nitrogen-fixer is .....................$
Tap an option to check your answer.
Ex Q1(7) $Microorganisms also help in production of food like .................$
Tap an option to check your answer.
Ex Q1(8) $MOET technique is used for ............$
Tap an option to check your answer.
Ex Q1(9) $Mule is the outcome of ..............$
Tap an option to check your answer.

Q2. Very Short Answer Questions

Practice · 9

Very Short Answer Questions:
Ex Q2(1) $What does make idlies puffy?$
Ex Q2(2) $Name any two bacterial biofertilizers.$
Ex Q2(3) $\text{B}_{12}$
Ex Q2(4) $What is the microbial source of enzyme Invertase?$
Ex Q2(5) $Milk start to coagulate when Lactic Acid Bacteria (LAB) is added to warm milk as a starter. Mention any two other benefits of LAB.$
Ex Q2(6) $Name the enzyme produced by Streptococcus bacterium. Explain importance in medical sciences.$
Ex Q2(7) $What is breed?$
Ex Q2(8) $Define estuary.$
Ex Q2(9) $What is shellac?$

Q3. Short Answer Questions

Practice · 8

Short Answer Questions.
Ex Q3(1) $Many microbes are used at home during preparation of food items. Comment on such useful ones with examples.$
Ex Q3(2) $What is biogas? Write in brief about the production process.$
Ex Q3(3) $Write a note on biocontrol agents.$
Ex Q3(4) $Name any two enzymes and antibiotics with their microbial source.$
Ex Q3(5) $Write priciples of farm management.$
Ex Q3(6) $Give economic importance of fishery.$
Ex Q3(7) $Enlist the species of honey bee mentioning their specific uses.$
Ex Q3(8) $What are A, B, C and D in the table given below : Types of microbe Name Commercial product Fungus A Penicillin Bacterium Acetobacter aceti B C Aspergillus niger Citric acid Yeast D Ethanol$

Types of microbe	Name	Commercial product
Fungus	A	Penicillin
Bacterium	Acetobacter aceti	B
C	Aspergillus niger	Citric acid
Yeast	D	Ethanol

Q4. Long Answer Questions

Practice · 6

Long Answer Questions.
Ex Q4(1) $Explain the process of sewage water treatment before it can be discharged into natural bodies. Why this treatment is essential?$
Ex Q4(2) $Write a note on lac culture.$
Ex Q4(3) $Describe various methods of fish preservation.$
Ex Q4(4) $Give an account of poultry diseases.$
Ex Q4(5) $Give an account of mutation breeding with examples.$
Ex Q4(6) $Describe briefly various steps of plant breeding methods.$

What the board has asked from this chapter

Questions per paper · 5 papers · 2024 to 2026

June 2026

3 q

Q. 1(i) $The microorganism used for production of beverages like wine, whisky, etc. is _____.$
Tap an option to check your answer.
Role of Microbes in Industrial Production
Q. 6 $Match the crop and its hybrid variety and rewrite the following : Column I Column II Crop Hybrid Variety (i) Rice (1) Ganga-3 (ii) Maize (2) Niphad (iii) Jowar (3) Ratna (iv) Bajra (4) CO-12$
Plant Breeding
Q. 26 $(a) Give the composition of biogas. (b) Enlist the benefits of biogas.$
Microbes in Energy Generation

	Column I		Column II
	Crop		Hybrid Variety
(i)	Rice	(1)	Ganga-3
(ii)	Maize	(2)	Niphad
(iii)	Jowar	(3)	Ratna
(iv)	Bajra	(4)	CO-12

February 2026

3 q

Q. 1(v) $Identify the algae among the following:$
Tap an option to check your answer.
Single Cell Protein
Q. 7 $Give any four advantages of micropropagation.$
Tissue Culture
Q. 26 $(a) What is biofertilizer? (b) Draw and label the T.S. of root nodules.$
Microbes as Biofertilizers

July 2025

3 q

Q. 1(iii) $Which of the following biofertilizers is used by farmers to increase the yield of rice crop?$
Tap an option to check your answer.
Microbes as Biofertilizers
Q. 6 $Define the terms : (a) Explant (b) Callus$
Tissue Culture
Q. 24 $Give scientific names of sugarcane varieties native of North and South India. Name the centre in India which has developed sugarcane varieties containing high sugar.$
Plant Breeding

July 2024

2 q

Q. 20 $Give the role of following mycoherbicides (a) Phytophthora (b) Alternaria (c) Fusarium$
Microbes as Biocontrol Agents
Q. 24 $What is mycorrhiza? Name its types and state any two benefits of mycorrhiza.$
Microbes as Biofertilizers

March 2024

3 q

Q. 2(v) $Give the name of microbial source of antibiotic chloromycetin.$
Role of Microbes in Industrial Production
Q. 14 $Explain the steps involved in preliminary treatment of sewage.$
Microbes in Sewage Treatment
Q. 26 $What is lac? Enlist economic importance of Lac.$
Animal Husbandry

The 10 board questions to practise first

The questions the board asked again come first, most asked first. Each one says how often and when.

Question 1
This type asked 2 times: Mar 2024, Jun 2026. This one: Jun 2026
Q. 1(i) $The microorganism used for production of beverages like wine, whisky, etc. is _____.$
Tap an option to check your answer.
Question 2
Asked once: Mar 2024 (same type asked 2 times)
Q. 2(v) $Give the name of microbial source of antibiotic chloromycetin.$
Question 3
Asked once: Jun 2026
Q. 26 $(a) Give the composition of biogas. (b) Enlist the benefits of biogas.$
Question 4
Asked once: Jun 2026
Q. 6 $Match the crop and its hybrid variety and rewrite the following : Column I Column II Crop Hybrid Variety (i) Rice (1) Ganga-3 (ii) Maize (2) Niphad (iii) Jowar (3) Ratna (iv) Bajra (4) CO-12$
Question 5
Asked once: Feb 2026
Q. 26 $(a) What is biofertilizer? (b) Draw and label the T.S. of root nodules.$
Question 6
Asked once: Feb 2026
Q. 7 $Give any four advantages of micropropagation.$
Question 7
Asked once: Feb 2026
Q. 1(v) $Identify the algae among the following:$
Tap an option to check your answer.
Question 8
Asked once: Jul 2025
Q. 24 $Give scientific names of sugarcane varieties native of North and South India. Name the centre in India which has developed sugarcane varieties containing high sugar.$
Question 9
Asked once: Jul 2025
Q. 1(iii) $Which of the following biofertilizers is used by farmers to increase the yield of rice crop?$
Tap an option to check your answer.
Question 10
Asked once: Jul 2025
Q. 6 $Define the terms : (a) Explant (b) Callus$

Exercise

Q1. Multiple Choice Questions

Q2. Very Short Answer Questions

Q3. Short Answer Questions

Q4. Long Answer Questions

What the board has asked from this chapter

June 2026

February 2026

July 2025

July 2024

March 2024

The 10 board questions to practise first

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Question 10