Page 120 - General and Inorganic Chemistry for Advanced Secondary Schools Students Book Form Five and Six
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Biology for Secondary Schools




                                          Chapter Six



                                     Nutrition in plants
                                     Nutrition in plants
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              Introduction


              Plants are organisms that can manufacture their own food, and therefore are
              called autotrophs. Other organisms that can manufacture their own food include

              some bacteria and protoctists. Although plants can make their own food, they

              require some chemical elements from the environment. Such chemical elements
              are important for normal growth and development. In this chapter, you will learn
              about photosynthesis process and its importance, as well as the structure of a

              leaf in relation to photosynthesis. You will also learn roles of essential mineral

              elements to plants. The competencies developed will enable you to explore the
              importance of plant nutrition to life.



                                                      diseases. There are two major types of
                                                      nutrition based on how organisms obtain
                       Think                          their food. These are autotrophic nutrition

              The world without nutrition in plants   and heterotrophic nutrition. In this

                                                      chapter, you will learn about autotrophic
              Concept of nutrition
                                                      nutrition.
              Nutrition is the process of feeding and
              utilising of food for energy provision,   Autotrophic nutrition
              growth, development, repair and         Autotrophic nutrition is a type of nutrition
              maintenance of the overall body health.   in which organisms manufacture their
              Nutrition also refers to the study of the   own food using available energy sources.

              relationship between diet, health, and  An organism that manufactures its own


               114                                                     Student’s Book Form  One                   Student’s Book Form One




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