3982894
Description
Flashcards by gfhgfhg gfhgfhg, updated more than 1 year ago
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Created by gfhgfhg gfhgfhg
over 8 years ago
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| Question | Answer |
| What is the nucleus ? | The nucleus controls the cell |
| What is the cytoplasm ? | A jelly like substance where the chemical reactions for life happen |
| What is the function of the cell membrane ? | it controls what goes in and out of the cell |
| What is the function of the cell wall ? | It provides support for the cell |
| Where in the cell does photosynthesis happen? | chloroplasts |
| what is the green pigment pound in chloroplasts ? | chlorophyll |
| What happens in the mitochondria in the cell ? | respiration |
| What is a vacuole ? | it contains cell sap and provides support to plant cells |
| what is a unicellular organism ? | An organism made up of just one cell |
| give 2 examples of unicellular organisms | Amoeba euglena |
| How are amoeba adapted to living in water ? | The have a contractile vacuole to remove excess water |
| Give some adaptations of euglena | the contain chloroplasts they have a flagella to swim with |
| State how cells are organised in multicellular organisms | cells tissues organs organ systems organism |
| what are tissues ? | a group of similar cells all working for the same purpose |
| what is an organ? | a group of different tissues working together for the same purpose |
| what is an organ system? | a group of organs all working together for the same purpose |
| what is an organism ? | a group of organ systems working together to keep the organism alive |
| how are red blood cells adapted to transport oxygen ? | They have a biconcave shape to increase their surface area and no nucleus to fit in more oxygen |
| how are sperm adapted to fertilise the cell ? | they have a flagella (tail) to swim towards the egg |
| How is the egg cell adapted to be fertilized by sperm ? | It is very large to provide a large target for the sperm to hit |
| how are root hair cells adapted to absorb water from the soil ? | it has a very large surface area |
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