Additional Biology First Test AQA 0.0 / 5 ? ScienceAll, B2.1, 2.2, 2.3GCSEAQA Created by: lazarusesayasCreated on: 03-04-15 16:47 What does the nucleus do? Controls the chemical reactions in the cell 1 of 16 What is the cytoplasm? A liquid gel where chemical reactions take place 2 of 16 What uses oxygen to produce energy? Mitochondria 3 of 16 What organisms have similar features to plant cells? Algae 4 of 16 What is the subsatnce that makes chloroplasts green and what does it do? Chlorophyll. It absorbs the sunlight 5 of 16 Why don't root cells have chloroplasts? As they are underground and so receive no light 6 of 16 Where is the DNA found in a bacterial cell? In the plasmids and circular chromosomes based in the cytoplasm 7 of 16 What is a flagellum? A long protein strand which allows bacteria to move 8 of 16 What is the equation for aerobic respiration? Glucose + Oxygen ==> Carbon Dioxide + Water + (Energy) 9 of 16 What is the equation for anaerobic respiration? Glucose ==> Lactic acid + (Energy) 10 of 16 What does specialised mean in terms of cells? They can become any type of cell 11 of 16 What are the two main adaptations of root hair cells? 1. Large surface area 2. Long and narrow 12 of 16 What is diffusion? Movement of particles along a concentration gradient from an area of high concentration to an area of low concentration 13 of 16 What is a common cell adaptation to increase the rate of diffusion? Large surface area 14 of 16 Why do plants and algae need a constant supply of glucose? They are respiring all of the time 15 of 16 What is most likely to be the limiting factor on a hot, sunny day? Carbon dioxide 16 of 16
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