Poison for One – Food for Another

1. Examine the graph from Worksheet 2. Analysis of data from biological graphs showing results of an experiment.
2. Analyse the data and answer the questions below in a written form:

• • What does this graph depict?
  • Why is carbon dioxide increasing strongly?
  • What would happen if we put a living plant in the test tube and did the experiment again? Why would this be different from the current experiment?
  • What would happen if you put the test tube with the plant and the living organism in the dark?

To download: Worksheet 2. Analysis of data from biological graphs showing results of an experiment

Plant Nutrition

Plant nutrition refers to how plants obtain and use the essential nutrients needed for their growth, development and overall well-being. Like humans and animals, plants need certain nutrients to survive and develop. As we can see, plants and humans have some similarities when it comes to our survival. Both need food and certain nutrients to maintain good health.

Nutrients play a key role in the development of strong stems, roots and leaves. Photosynthesis also needs certain nutrients, such as chlorophyll and magnesium. Nutrients also act as essential components or catalysts in various metabolic reactions in plants, such as growth, reproduction and genetic information. Nutrients are necessary for the production of flowers, fruits and seeds. They contribute to the formation of reproductive structures and facilitate successful pollination and seed development. Adequate nutrition helps plants build strong defence mechanisms against pests, diseases and environmental stresses. Nutrients increase the resistance of plants and their ability to recover from various damages.