4/11 Free write- Bio lab report intro

There are two main types of nutrients that are essential for plant life: macronutrients and micronutrients. Macronutrients are nutrients needed in large quantities for plant growth. Micronutrients are nutrients needed in small quantities. Plants need these nutrients, in addition to sunlight, CO2, O2, and water, to grow, develop, and reproduce. In this experiment plant growth and development is affected by 6 macronutrients and micronutrients, iron and trace elements as shown in table 4. The first macronutrient is Potassium (K) which enhances the process of stomata regulation. The exchange of gas is a key process throughout photosynthesis. Potassium does not make up macromolecules and has several deficiency symptoms that include wilting leaves and a weak stem in plants. The second macronutrient is Calcium (Ca) which is a vital component of the cell wall that is mainly used for the protection of the plant. Calcium makes no macromolecules and its deficiency symptoms include the browning of leaves. The third macro nutrient is magnesium (Mg) which remains in the chlorophyll that essentially helps with photosynthesis. It makes no macromolecules and has deficiency symptoms of less and the yellowing of leaves. The next macronutrient is Sulfur(S) which is important in the process of making macromolecules such as proteins and amino acids. Without amino acids and proteins, it would be impossible to make branches and green leaves. Instead, without Sulfur, plants would develop small branches and chlorosis. Up next is Nitrogen (N) another macronutrient which is important in the processes of ATP (energy), Chlorophyll (photosynthesis), Amino Acids (component of protein structure) and Nucleotides (DNA and cell structuring). The macromolecules Nitrogen’s make up is DNA and Protein. Nitrogen has several deficiency symptoms which consist of stunted growth or a delay and color changes. The sixth and last micronutrient is Phosphorous (P) which is important in the process of nucleotides and phospholipids. DNA is the macromolecule in its makeup, and its deficiency symptoms are poor growth and dark or brown spots on the leaves. Yes, macronutrients are important however, without micronutrients, the development of plants would be nearly impossible. Iron (Fe) is a micro nutrient vital in the process of photosynthesis, it creates no macromolecules, but without iron, yellow or brown leaves will develop which means the photosynthesis process will be hindered. The last but not the least micronutrient are trace elements which isn’t a main focus in our lab however; If trace are eliminated from the equation then the plant will die.

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