6478688
Beschreibung
Karteikarten von Anya Jayakody, aktualisiert more than 1 year ago
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Erstellt von Anya Jayakody
vor etwa 8 Jahre
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| Frage | Antworten |
| What is the cell theory? | BASIC UNIT of structure and function of all living organisms is the CELL. All CELLS ARISE from pre-exsisting cells |
| what is a cell? | A bag in which chemistry of life is allowed to occur. |
| what is a cell membrane? also referred to as plasma membrane? | thin membrane about 7 nm (diameter) surrounds cell CONTROLS EXCHANGE of materials inisde between cell and its environment |
| What is the nucleus? | the part of the cell which CONTROLS all of its ACTIVITY |
| what is a nucleus made up of? X') | NUCLEOLUS- manufacture ribosomes NUCLEAR ENVELOPE- surrounds nucleus CHROMATIN- mass of loosely coiled thread (coils to form chromosomes) |
| What is the cytoplasm? | an aqueous material forming a jelly-like consistency |
| What are organelle? | Small structures found within a cell cytoplasm or small organs of a cell Functional and structurally distict part of a cell. |
| What is compartmentalisation? | The surrounding of organelle by their membranes to sepreate activity from their surrounding. |
| What is division of labour? | The sharing of work between specialised organelle. |
| What organelle can be found in an animal cell but not a plant cell? .-. | CENTRIOLES - they lie at right angles to each other |
| What organelle are present in plant cells but not in a n animal? | CHLOROPLAST - carry out photosynthesis PERMANENT VACUOLES - a solution which contains pigments, enzymes , sugars and organic compund |
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