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Quizzes > Quizzes for Business > Agriculture

Agriculture and Food Nutrition Knowledge Quiz

Challenge Yourself on Agricultural Nutrition and Food Science

Difficulty: Moderate
Questions: 20
Learning OutcomesStudy Material
Colorful paper art illustrating a trivia quiz on agriculture and food nutrition knowledge

Looking to deepen your grasp on crop management and dietary science? This Agriculture and Food Nutrition Knowledge Quiz brings together questions from sustainable farming fundamentals and nutrient profiling to sharpen skills. Ideal for students, educators, and food enthusiasts, it will help you identify areas for improvement and deepen your understanding of plant and animal nutrition. You can also explore our Nutrition Knowledge Quiz or dive into a Sustainable Agriculture Knowledge Quiz for more. Plus, every quiz, including this one, can be easily modified in our quizzes editor.

Which three macronutrients are considered primary nutrients essential for plant growth?
Calcium, Magnesium, Sulfur
Iron, Manganese, Zinc
Nitrogen, Phosphorus, Potassium
Carbon, Hydrogen, Oxygen
Nitrogen, phosphorus, and potassium are the primary macronutrients required in the largest amounts for plant growth. They play key roles in energy transfer, root development, and overall plant health.
In livestock nutrition, what macronutrient is primarily responsible for muscle development and repair?
Vitamin
Carbohydrate
Protein
Fat
Proteins provide amino acids necessary for muscle growth and tissue repair in animals. Adequate protein in feed is essential to support maintenance, growth, and production.
Which soil pH range is generally optimal for most crop nutrient availability?
8.5 - 9.5
7.5 - 8.5
4.5 - 5.5
6.0 - 7.0
A soil pH between 6.0 and 7.0 allows most nutrients to remain soluble and available for plant uptake. Outside this range, certain nutrients can become fixed or toxic.
What does the Recommended Dietary Allowance (RDA) represent on nutrition labels?
Daily nutrient intake level sufficient for most healthy individuals
Minimum amount to prevent deficiency disease
Average intake of the general population
Maximum safe upper intake level
The RDA is set to meet the nutrient needs of nearly all healthy individuals in a specific life stage and gender group. It helps consumers choose diets that prevent deficiencies.
Which practice is a form of sustainable farming that helps prevent soil erosion and improve nutrient cycling?
Monoculture cropping
Overgrazing
Crop rotation
Heavy tillage
Crop rotation involves alternating different crops on the same land to manage pests, diseases, and soil fertility. It reduces erosion and replenishes soil nutrients naturally.
The primary role of phosphorus in plant growth is:
Nitrogen fixation
Photosynthesis
Cell wall synthesis
Energy transfer through ATP
Phosphorus is a critical component of ATP, which stores and transfers energy in cells. It is essential for root development and flowering.
What does a feed conversion ratio (FCR) of 2.5 indicate?
Feed cost per unit weight
2.5% feed survival rate
2.5 units of weight gained per unit of feed
2.5 units of feed required per unit of weight gain
An FCR of 2.5 means the animal needs 2.5 units of feed to gain one unit of body weight. Lower FCR values indicate greater feed efficiency.
How does increasing soil organic matter typically affect water holding capacity?
Increases water retention
No effect
Decreases water retention
Increases erosion
Organic matter acts like a sponge in the soil, holding moisture and making it available for plant roots. Higher organic content improves drought resistance.
On a food nutrition label, which term indicates the proportion of the daily recommended intake provided by a serving?
% Daily Value
Gross Energy
Net Carbs
Serving Size
% Daily Value shows how much of a nutrient in one serving contributes to the recommended daily intake based on a 2,000-calorie diet. It helps consumers understand nutrient density.
Hydroponic systems grow plants using:
Organic potting mix
Nutrient-rich water solution without soil
Soil with added compost
Aeroponic mist
Hydroponics supplies water-soluble nutrients directly to plant roots in a water solution. This method eliminates the need for soil and can improve growth rates.
Applying nitrogen fertilizer too early before planting can lead to:
Improved crop yield
Pest suppression
Leaching and reduced efficiency
Soil pH increase
If nitrogen is applied well before crops can uptake it, rainfall may leach it below the root zone, reducing availability and increasing environmental loss.
Dietary fiber in animal diets primarily contributes to:
Rapid weight gain
Protein synthesis
Vitamin absorption
Gut motility and digestive health
Fiber adds bulk to the digestive tract, promoting regular gut movement and supporting beneficial microbial populations. It is not a major energy source.
Frequent deep tillage can negatively affect soil by:
Improving pH uniformly
Enhancing microbial diversity
Increasing organic matter
Disrupting soil structure and increasing erosion
Deep tillage breaks up soil aggregates, leading to compaction, loss of structure, and greater susceptibility to erosion. It can also disturb microbial habitats.
Which macronutrient provides approximately 9 kilocalories per gram?
Protein
Fiber
Carbohydrate
Fat
Fat contains about 9 kcal per gram, more than double the energy of carbohydrates and protein, which each provide about 4 kcal per gram.
Legume cover crops improve soil nutrition primarily by:
Increasing acidity
Fixing atmospheric nitrogen
Causing compaction
Adding phosphorus
Legumes host symbiotic bacteria that convert atmospheric nitrogen into forms plants can use, enriching soil fertility and reducing the need for synthetic fertilizers.
Cation Exchange Capacity (CEC) in soils is critical because it measures:
pH buffering capacity
Microbial activity level
Water infiltration rate
Soil's ability to hold and exchange nutrient cations
CEC quantifies how many positively charged nutrient ions soil particles can retain and make available to plants. Higher CEC indicates greater nutrient-holding capacity.
In formulating swine diets, which amino acid is most often the first limiting amino acid?
Tryptophan
Methionine
Lysine
Threonine
Lysine is typically the first limiting amino acid in cereal-based swine diets, meaning it is the most likely to be deficient relative to the animal's needs.
Excessive irrigation in arid regions can lead to soil salinization by:
Decreasing soil pH
Increasing organic matter
Leaching all salts
Evaporating water leaving salts at the surface
Irrigation water often contains dissolved salts; when applied excessively in arid climates, evaporation concentrates these salts in the root zone, harming crops.
A life cycle assessment in sustainable farming primarily evaluates:
Crop yield per acre
Farm profit margins
Environmental impacts from production to consumption
Animal growth rates
Life cycle assessment quantifies environmental impacts such as greenhouse gas emissions, energy use, and water footprint across the entire farm-to-fork chain.
Michaelis-Menten kinetics applied to nutrient uptake in plants helps to describe:
Evapotranspiration dynamics
Decomposition of organic matter
Rate of photosynthesis under light saturation
Rate at which roots absorb nutrients at varying soil concentrations
Michaelis-Menten kinetics models how nutrient uptake rate changes with soil nutrient concentration, defining maximum uptake rate and affinity constants.
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Learning Outcomes

  1. Analyse the role of macronutrients in plant and animal growth
  2. Evaluate food production techniques for nutritional outcomes
  3. Identify key factors affecting soil health and crop yield
  4. Demonstrate understanding of dietary guidelines and nutrient labeling
  5. Apply sustainable farming principles to enhance food quality
  6. Master core concepts of animal nutrition in livestock feed

Cheat Sheet

  1. Understand the Essential Macronutrients for Plant Growth - Plants need nitrogen, phosphorus, and potassium to build proteins, transfer energy, and regulate water like tiny chemical superheroes! Nitrogen, for instance, is a key part of chlorophyll that powers photosynthesis. smallgrains.wsu.edu
    2. smallgrains.wsu.edu
  2. Recognize Macronutrient Deficiency Symptoms in Plants - When nutrients run low, plants send distress signals: yellowing leaves for nitrogen shortage, stunted and purplish foliage for lack of phosphorus, and crispy leaf edges with weak stalks for potassium deficits. Spotting these clues early helps you nurse your green pals back to health. agrivi.com
    3. agrivi.com
  3. Explore the Role of Macronutrients in Animal Nutrition - Just like plants, animals need carbs, proteins, and fats to ward off hunger dragons and power growth quests. Proteins are especially heroic, repairing tissues and crafting essential enzymes. elsevier.blog
    4. elsevier.blog
  4. Evaluate Food Production Techniques for Nutritional Outcomes - Modern farming methods such as precision agriculture and crop rotation fine-tune nutrient delivery and guard against soil exhaustion. This means tastier, healthier crops without depleting Mother Earth. agrivi.com
    5. agrivi.com
  5. Identify Key Factors Affecting Soil Health and Crop Yield - Soil pH, organic matter, and nutrient availability team up to determine your garden's success score. Keeping these in balance ensures your plants grow strong and happy. smallgrains.wsu.edu
    6. smallgrains.wsu.edu
  6. Demonstrate Understanding of Dietary Guidelines and Nutrient Labeling - Learning to decode nutrition labels is like unlocking a secret treasure map to better health. Follow balanced macronutrient advice to fuel your body's daily adventures. elsevier.blog
    7. elsevier.blog
  7. Apply Sustainable Farming Principles to Enhance Food Quality - Strategies like crop diversification, organic methods, and IPM are the ultimate power-ups for soil and environment alike. They boost food quality and protect ecosystems. agrivi.com
    8. agrivi.com
  8. Master Core Concepts of Animal Nutrition in Livestock Feed - Balancing proteins, carbs, and fats in feed is critical for muscle growth, milk production, and overall animal vitality. Think of it as crafting the perfect recipe for your barnyard buddies. elsevier.blog
    9. elsevier.blog
  9. Learn the Functions of Secondary Macronutrients in Plants - Calcium, magnesium, and sulfur are the underrated sidekicks in plant health. Magnesium shines as the heart of chlorophyll, while calcium and sulfur support structure and metabolism. smallgrains.wsu.edu
    10. smallgrains.wsu.edu
  10. Understand the Impact of Macronutrient Imbalances on Plant Health - Too much or too little of a nutrient can throw your plants into chaos. Excess nitrogen might delay blossoms, while a shortage can stunt growth - and that's just the beginning of the plot twists! agrivi.com
    11. agrivi.com
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