Begegnungen mit der Natur 5, Arbeitsheft

6 Zellbiologie How about using English – the plant cell 1. Read the text and letter the figure by using the words in bold. All cells have a cell membrane , a thin boundary which encloses the cytoplasm . The cytoplasm is a thick liquid that con- tains structures which all have particular functions. They are called organelles . Examples of them are the mitochondria , the ribosomes (both are structures which are present in all cells), the chloroplasts and the vacuole (both are typical components of plant cells). The nucleus is also embedded in the cytoplasm. It is a rounded structure which is enclosed by a membrane. Plant cells have a cell wall that is attached to the cell membrane. Schulbuch Seite 20–23 O 2. Complete the table. Function Cell part controls the entry and exit of substances into or out of the cell releases energy (the chemical process is called cellular respiration) builds up proteins controls cell functions contains cell sap, a watery solution of sugars, salts, etc. where the photosynthesis takes place Nur zu Prüfzwecken – Eigentum des Verlags öbv