Visualizzazione post con etichetta 4°E. Mostra tutti i post
Visualizzazione post con etichetta 4°E. Mostra tutti i post

12.2.20

FOOD COMPOUNDS




"We are what we eat". 

The food we eat consists of  MACRONUTRIENTS (Carbohydrates, Proteins and lipids) and MICRONUTRIENTS (vitamins and minerals).


MACRONUTRIENTS supply us with energy. 
  • Carbohydrates 
  • Proteins 
  • Lipids 

MICRONUTRIENTS
they help our body break down the macronutrients so that you can use the energy.
They are: 

  • Vitamins 
  • Mineral

  • Water-Soluble vitamins play an important role in producing energy.
    • B1, B2, B3, B5, B6, B7, B9, B12, C
  • Fat-Soluble Vitamins 
    • A, D, E K
  • Macrominerals have different functions for a healthy body.
    • Calcium, Phosphorus, Magnesium, Sodium, Chloride, Potassium, Sulfur
  • Trace Minerals enable important functions in the body.
    • Iron, Manganese, Copper, Zinc, Iodine, Fluoride, Selenium


   
   ANSWER THE QUESTIONS:
   PART 1

 1)What does the brain constitutional nutritional content consist of?

 2)What do these nutritional components affect in the brain?

 3)What are the feelings of post-lunch apathy and late-night alertness (insomnia) usually caused by?

 4)What can the regular assumption of 3 and 6 Omega fatty acids prevent in the brain?

 5)What is the important role of 3 and 6 Omega fatty acids for the brain cells?

 6)What food should we eat to supply our brain with 3 and 6 Omega fatty acids?

 7)What fats are dangerous to men’s health and brain health?






27.1.20

SOIL

THE SOIL


Soil is one of the most important factors of all farming operations.

The soil is of paramount importance in all farming operations.

Soil is the basic factor in the food chain;

SOIL IS COMPOSED OF/ IS MADE OF:





  • 45% of parent mineral matter
  • 5% of organic matter (dead plants and animals, organic waste) and living organisms (worms, nematodes, bigger animals) 
  • 25% of water
  • 25%  of air (gases)

Soil is a complex body composed of five major components
  1. Mineral matter obtained by the disintegration and decomposition of rocks;
  2. Organic matter, obtained by the decay of plant residues, animal remains and microbial tissues;
  3. Organisms, both big (worms, insects) and small (microbes)
  4. Water, obtained from the atmosphere and the reactions in soil (chemical, physical and microbial);
  5. Air or gas, from the atmosphere, reactions of roots, microbes and chemicals in the soil




SOIL IS
1) USED TO PRODUCE BIOMASS
2) USED TO PROTECT THE ENVIRONMENT AND PRODUCE FOOD AND WATER
3) EXPLOITED AS SOURCE OF RAW MATERIAL
4) PROTECTED AS CULTURAL HERITAGE

SOIL DEGRADATION /SOIL DESTRUCTION

1)  PHYSICAL DEGRADATION
  • EROSION 
  • DESERTIFICATION
  • WATER-LOGGING
  • SOIL COMPACTION 
            • OVERGRAZING
            • DEFORESTATION




2) BIOLOGICAL DEGRADATION
  • CHANGES IN ANIMAL AND PLANT BIODIVERSITY
            • INTENSIVE USE OF PESTICIDES
3) CHEMICAL DEGRADATION
  • ACIDIFICATION
          • ACID RAINS
  • SALINIZATION
  • CONTAMINATION 
          • HEAVY-METALS, 
          • NITROGEN, (helps above ground leaf  growth)
          • PHOSPHOROUS, (encourages plant cell divisions)
          • POTASSIUM (increases plant resistance to diseases)
  • TOXIFICATION
  • EUTROPHICATION