Biology B1 0.0 / 5 ? ScienceBiologyCellsGCSEAQA Created by: RebeccaMaccaigCreated on: 12-02-18 11:26 What feature IS NOT common to all types of cell (both animal and plant)? Cellulose cell wall 1 of 19 What is the function of mitochondria in animal cells? structures in the cytoplasm where AEROBIC RESPIRATION takes place, releasing energy from the cell 2 of 19 What is the function of cytoplasm? liquid gel which the organelles are suspended and where most chemical reactions take place (needed for life) 3 of 19 What is the PERMANENT VACUOLE? is a space in the CYTOPLASM filled with CELL SAP. Important for keeping the cells rigid for support 4 of 19 What are Eukaryotic Cells? Complex cells, which include animal and plant cells 5 of 19 What are Prokaryotic Cells? Small, simple cells such as bacteria 6 of 19 Name one difference between Eukaryotic and Prokaryotic cells In Eukaryotic cells, the genetic material is enclosed in a nucleus whereas in Prokaryotic cells, the DNA loops freely in the cytoplasm 7 of 19 As an organism develops, what does it do in order to form different types of cell? Differentiate 8 of 19 Examples of specialised cells include... Nerve cells, muscle cells and sperm cells 9 of 19 What do Prokaryotes contain which Eukaryotes do not? Extra small rings of DNA called Plasmids, and sometimes a flagella and slime capsule 10 of 19 What is DIFFUSION? The spreading out of particles from an area of HIGHER concerntration to an area of LOWER concerntration down a CONCERNTRATION GRADIENT 11 of 19 What is the rate of diffusion effected by? Difference in concerntration, temperature, available surface area 12 of 19 Diffusion happens between... The cell membrane 13 of 19 What is Osmosis? The movement of WATER from a dilute to a more concerntrated solute solution through a partially permeable membrane 14 of 19 What is ISOTONIC? where the concerntration is the SAME inside and out 15 of 19 What is HYPERTONIC? where the concerntration of the solution outside the cell is HIGHER than inside 16 of 19 What is HYPOTONIC? where the concerntration of the solution outside the cell is LOWER than inside 17 of 19 What is ACTIVE TRANSPORT? moves substances from a dilute solution to a more concerntrated solution AGAINST a concerntration gradient 18 of 19 What does active transport require in order for it to take place? Energy from respiration 19 of 19
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