2.7 identify the chemical elements present in carbohydrates, proteins and lipids (fats and oils)

1.2 describe the common features shown by eukaryotic organisms: plants, animals, fungi and protoctists

- October 23, 2017

Plants : - multicellular organisms - cells contain chloroplasts - are able to carry out photosynthesis - cells have cellulose cell walls - store carbohydrates as starch or sucrose - examples include: flowering plants, such as a cereal (eg. maize), and a herbaceous legume (eg. peas or beans). Animals: - multicellular organisms - cells do not contain chloroplasts - not able to carry out photosynthesis - no cell walls - store carbohydrate as glycogen - examples: mammals (eg. humans) and insects (eg. housefly and mosquito). Fungi: - not able to carry out photosynthesis - their body is usually organised into a mycelium made from thread-like structures called hyphae , which contain many nuclei - some examples are single-celled - their cells have walls made of chitin - they feed by extracellular secretion of digestive enzymes onto food material and absorption of the organic products ; this is known as saprotrophic nutrition - they store carbohydrate a

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Edexcel Biology IGCSE

2.7 identify the chemical elements present in carbohydrates, proteins and lipids (fats and oils)

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2.8 describe the structure of carbohydrates, proteins and lipids as large molecules made up from smaller basic units: starch and glycogen from simple sugars, protein from amino acids, and lipid from fatty acids and glycerol

1.2 describe the common features shown by eukaryotic organisms: plants, animals, fungi and protoctists