Heterotrophs and Autotrophs.pptx

Learn more about autotrophs and heterotrophs!

1. Heterotrophs and Autotrophs Grade 11 Life Sciences

2. Organisms that can make their own food (Ardash, 2015) Plants are types of autotrophs that produce their own food through the process of photosynthesis These organisms are called producers Autotrophs

3. Plants as producers They belong to the Kingdom Plantae (Dundas, 2012). They are divided into four groups, which are: Bryophyta. Pteridophytes Gymnosperms Angiosperms

4. What is photosynthesis? It is a process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water ( Motsoko , 2022).

5. Why are autotrophs important

6. Organisms that cannot make their own food. Types of heterotrophs are carnivores , omnivores , decomposers and saprophytes . They are called consumers Heterotrophs

7. Decomposers and saprophytes Decomposers  Organisms that break down dead material of both animals and plants in the ecosystem . E.g ., bacteria , fungi Saprophytes   O rganisms that feed on dead and decaying organic material (plant matter). E.g., Fungi

8. Differences between autotrophs and heterotrophs

9. Plants and animals in South Africa According to Groos (2011)There are over  100 000  known species of plants, animals and fungi in South Africa. Scientists believe that there are at least another 50 000 species in the country that have not yet been discovered and/ or named. Visitors to South Africa are always keen to catch a glimpse and a photo of the country's celebrated  Big Five: elephant, lion, rhinoceros, buffalo and leopard.  Protea is a South Africa's national flower. Springbok is South Africa’s national animal. Galjoen is South Africa ’s national fish.

10. References Ardash, R. (2015) Types of autotrophs. Available from SlideShare at https://www.slideshare.net/rakhiadarsh/nutrition-45106027?qid=e6ec86e5-47c2-4f67-9b8c-4058d6e00e3a&v=&b=&from_search=6 (Accessed 18 August 2022). Dundas, D. (2021) Unit 1 Classification Biodiversity Representation. Available at from SlideShare at https://www.slideshare.net/notesmaster/unit-1-classification-biodiversity-presentation?qid=586f4eb4-9ec2-4997-bdf5-c4179b6177e0&v=&b=&from_search=6 (Accessed 19 August 2022). Groos, M. (2011) Reforestation tree species Trees for Tourism. Available from SlideShare at https://www.slideshare.net/MaartenGroos/reforestation-tree-species-trees-for-tourism-8810541?qid=22041ba8-6d52-4108-a7ec-6b5ff90700cf&v=&b=&from_search=2 (Accessed 20 August 2022) Jason, T. V. (2022) Animal Nutrition. Available from SlideShare at https://www.slideshare.net/TeslinVenusJason (Accessed 20 August 2022). Motsoko, K. (2022) Photosynthesis. Available from SlideShare at https://www.slideshare.net/Kgotsofalang (Accessed 20 August 2022).