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| Question | Answer |
| B2.1 Describe a nucleus and its function. | Contains genetic material and controls the activity of the cell. |
| B2.1 Describe cytoplasm and its function. | a gel where most chemicals reactions occur; it contains enzymes to control the reactions. |
| B2.1 Describe the cell membrane and its function. | Holds the cell together and controls what goes in and out. |
| B2.1 Describe Mitochondria and its function. | Where most of the reactions for respiration take place; provides cell with the energy needed to work. |
| B2.1 Describe a ribosome and its function. | Where proteins are made in the cell (protein synthesis). |
| B2.1 Describe a cell wall and its function. | rigid structure made of cellulose, supports and strengthens the cell. |
| B2.1 Describe a permanent vacuole and its function. | Contains sap, a weak solution of sugar and salts. |
| B2.1 Describe a chloroplast and its function. | where photosynthesis occurs, contains chlorophyll that absorbs the light energy needed for photosynthesis. |
| B2.1 Name a single-celled microorganism. | -Yeast -Bacteria |
| B2.1 What important component to bacteria cells not have, and what is the consequence? | They do not have a nucleus, so genetic material floats in the cytoplasm. |
| B2.1 What is a specialised cell? | A cell that performs a specific function and has a special structure to aid it. |
| B2.1 Name two specialised cells and how they are adapted for their functions. | Sperm cells- long tail and streamlined head red blood cells- biconcave shape, no nucleus, packed with haemoglobin |
| B2.1 What is diffusion? | The spreading of particles from an area of high concentration to an area of low concentration. |
| B2.1 |
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