Xam Idea Class 12 Biology Chapter 9 Solutions: Strategies For Enhancement In Food Production
Xam Idea Class 12 Biology Solutions Chapter 9 ‘Strategies for Enhancement in Food Production’ is an important chapter of Biology that explains to you the various means involved in agriculture and animal husbandry for bettering food production for human consumption. This chapter holds importance from the point of view of the exam since a lot of questions get asked from this topic. Here you will be acquainted with how animal husbandry affects human welfare with an emphasis on dairy and poultry farm management. Key ideas around plant breeding, tissue culture, and biofortification are also discussed. You also learn about single-cell protein and apiculture in this chapter.
Xam Idea Class 12 Biology Solutions Chapter 9, “Strategies for Enhancement in Food Production” has a total of 150 questions separated into 8 sections. The varied questions in this chapter brush up all the salient topics of this chapter by giving you questions in many forms. There are very short, short and long type answer questions along with objective types. There is also a self-assessment section where you can test yourself on how prepared you are in this chapter’s fundamentals. These quality questions are completely based on the latest CBSE syllabus with many of the questions taken from the previous years’ CBSE exams and NCERT book.
The way our subject matter experts at InstaSolv have explained these questions in detail is going to give you a strong foundation in Biology. Many of your doubts and weak parts would be clarified and going through these solutions would be enough to help you master this topic.
Important Topics for Xam Idea Class 12 Biology Solutions Chapter 9: Strategies for Enhancement in Food Production
With an increase in demand for food production, biological principles are being used to better the production like animal husbandry and plant breeding.
Animal Husbandry – Livestock like cows, buffalo, pigs, horses, cattle, sheep, goat, camel, etc are cared for and bred through the process of animal husbandry. Poultry farming and fisheries are also included in this. Fisheries refer to the process of rearing, catching, and selling of molluscs, fish, crustaceans like prawns, crabs, etc. India and China have more than 70% of the livestock population but they contribute only 25% to the world farm produce.
Management of farm and farm animals – A scientific approach of managing farm animals has increased food production manifold. Below are the various methods of doing this:
Dairy Farm management – This mainly deals with increasing the production of milk for human consumption. The processes implied are meant to better quality and quantity of milk and milk products. This is done by following a few principles listed below:
- Selecting a good breed of milk-producing animals which have a high yield and are resistant to diseases
- Cattles is well fed with good quality fodder and adequate water supply and well housed with enough light
- Milking, storage, and transportation of milk follow strict hygiene guidelines.
- Regular inspection with keeping records and a regular veterinary doctor visit to identify any issues.
- Both cattle and their handlers have to follow proper hygiene.
Poultry farm management – Poultry refers to rearing domesticated fowls (birds) that are used either for eggs or food. It mainly consists of chicken, ducks, turkey, and goose. Some important aspects of poultry management are:
- Selecting disease-free and suitable breed
- Having a conducive farming condition like proper food, water, and safety
- Maintaining hygiene and proper healthcare of birds.
Apiculture or Bee-keeping – Maintaining bees is important since they pollinate many crops and plants like Apple, sunflower, Brassica, and pear. So having bees on the field during the flowering period yields more crops and honey. Maintaining bee-hives comes under apiculture. Some key points of this method are:
- It is done in areas where there are enough bee pastures of fruit orchards or wild shrubs.
- Apis Indica is the most common species of honeybees
- Successful Bee-keeping entails:
Knowing the nature and habits of bees
Catching and hiving groups of bees (swarms)
Managing bee-hives across seasons
Selecting a suitable location for keeping bee-hives
Handling and collecting beeswax and honey.
- Ecological importance of Bees
Honey from bees has high nutritional value and it is also used in the indigenous system of medicines.
Beeswax is used in many industries like polishes and cosmetics.
Fisheries – Fisheries is an industry where aquatic animals like fish, shellfish (prawns, crabs, and molluscs) are caught, processed, and sold. Some of the common freshwater fishes in this category are rohu, Katla, etc. Hilsa, pomfret, sardines, and mackerel are examples of marine fishes reared through the Fisheries process. Uses of these techniques are very helpful since a large population depends on fish and fish products for food. It is also beneficial as a means of employment for a large number of fishermen in the coastal areas. One of its products, fish liver oil, is used widely as a medicinal supplement. Different methods employed in this category are:
Pisciculture – In this method, fishes are raised commercially in tanks for food purposes. Fish food comes from outside. Fishes are grown either in saltwater or freshwater.
Aquaculture – Growing and selling of aquatic animals come under this method. This is done in coastal or inland areas. Both freshwater and marine aquatic animals are grown with this method. It generally does not require fish feed from outside. It is helpful in obtaining many economically important substances. Feeding, harvesting, and many other methods are employed here. Some of the most common ones which are grown under controlled environment are crab, shrimps, lobsters, etc.
Plant Breeding – This involves purposefully manipulating plant species for creating better plant species with respect to better yield, cultivation, and disease resistance. The main process involves the hybridization of pure plant species which gives rise to plant types that have higher yield and nutrition.
SCP or Single Cell Protein – This is used as an alternative for good protein in animals and humans. They grow microbes on industrial scales for good protein. Some of its key characteristics are:
- It is a protein-rich cell biomass
- It can be grown easily on materials like wastewater from molasses, straw, potato processing plants, or animal manure.
- Common microbes grown on industrial scales are Spirulina and Methylophilus methylotrophs.
Discussion of Exercises of Xam Idea Class 12 Biology Solutions Chapter 9: Strategies for Enhancement in Food Production
- There are 12 questions in the first set which are selected from the NCERT book. The questions encompass many topics like animal breeding, animal husbandry, apiculture, naming hybrid varieties of plants, and more.
- Inset 2, there are 20 multiple choice questions which are based on the concept of inbreeding, artificial insemination, infection in plants, plant breeding.
- The 3rd section is the assertion-reason type with 1 question. In this, 10 statements are given with their reasons; you need to find the correct combination. Questions have topics like inbreeding, single-cell proteins, a crossbreed of animals, etc.
- In the 4th section, there are 28 questions requiring very short answers. Some of the topics of these questions are interspecific hybridization in plants, protoplast fusion, and the best breeding method for milk production.
- The 5th set has 47 questions where short answers need to be given. You need to apply your knowledge of apiculture, inbreeding, MOET technology, artificial insemination, etc. to answer these questions.
- The 6th set is again short answer types with 23 questions on poultry farm management, dairy farm management, inbreeding depression, MOET, and plant breeding.
- In the 7th set, you have to provide long answers for its 7 questions. Questions are on animal breeding, biofortification, plant breeding, identifying a crop by its variety, and tissue culture.
- The 8th set lets you assess your knowledge gained in this chapter with its 12 questions which touch all the important topics of this chapter. Questions are varied with a combination of MCQ, short and long answers, and assertion-reason type questions.
Why Use Xam Idea Class 12 Biology Solutions Chapter 9: Strategies for Enhancement in Food Production by Instasolv?
- Our Xam Idea solutions make use of easy language for better comprehensibility rather than complicated terms or jargon.
- CBSE Class 12 board exam preparations are made simpler with our solutions.
- Our team has expertise in the subject matter and provides accurate solutions to each question.
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