Biology 0.0 / 5 ? BiologyCells, tissues and organsEnzymes and digestionDNA and inheritanceGCSEAQA Created by: ayoubLDNCreated on: 12-04-15 13:29 Describe a yeast cell A single cell organism that has a nucleus, a cell membrane and wall and cytoplasm. 1 of 8 Instead of a nucleus what do bacterial cells have? Genetic material. 2 of 8 Describe diffusion The movement of a substance in high concentration to an area of low concentration. 3 of 8 Where does diffusion occur? In gases and solutions. 4 of 8 What affects the rate of diffusion? Concentration, temperature, surface area and pressure. 5 of 8 How are some plant cells specialised? Leaf cells are packed with chloroplast so that they can photosynthesise easily. 6 of 8 How are some animal cells specialised? Sperm cells have a streamline head shape to swim though the water to the female egg. 7 of 8 Name 3 types of tissues found in large molecular animals? Muscular tissue, glandular tissue and epithelial tissue. 8 of 8
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