B17 4.0 / 5 based on 1 rating ? BiologyEcology and Environmental ScienceGCSEAQA Created by: sophielouise277Created on: 04-04-19 16:47 What are photosynthetic organisms? The producers of biomass for life on earthb 1 of 33 Why are producers at the beginning of the food chain? They produce glucose by photosynthesis 2 of 33 What are the animals that eat producers called? Primary consumers (HERBIVORES) 3 of 33 What are the animals that eat primary consumers? Secondary consumers ( Carnivores) 4 of 33 What are the animals that eat secondary consumers? Tertiary consumers (Carnivores) 5 of 33 In the sea what are the producers? And on land what are the producers? Algae , plants 6 of 33 Primary consumers eat plants or algae why is this a problem? Cellulose is difficult to digest 7 of 33 What are consumers that eat other animals known as? Predators 8 of 33 What are consumers that are eaten? Prey 9 of 33 What happens in a stable community? Number of predators rises and falls 10 of 33 What do decomposes do? Break down the waste and dead animals and plants 11 of 33 What are the chemicals that make up living organisms? Carbon, oxygen, hydrogen and nitrogen 12 of 33 Describe the decay cycle. Producers, Consumers, decomposers , producers 13 of 33 What are the ways the decay material reach the consumers? Death + faeces 14 of 33 What happens to the mineral ions that are decomposed by the decomposers? Go into soil 15 of 33 What happens to the carbon dioxide that are decomposed by the decomposers? Goes into air 16 of 33 Describe the water cycle? Evaportion + transpiration and respiration go to water vapour. Rises and condenses, cools, precipitation, goes down into soil and back to sea 17 of 33 What is percolation? Water trickling through gaps in soils and rocks 18 of 33 What in our body are made of carbon? Main molecules, carbohydrates, proteins, fats and DNA 19 of 33 Where is some carbon locked up? In fossil fuels such as coal, oil and gas 20 of 33 What are these known as? Carbon sinks 21 of 33 Where else is carbon found? In limestone and chalk, dissolved in water 22 of 33 What do plants use carbon dioxide for? To make carbohydrates, proteins and fats via photosynthesis 23 of 33 What happens during respiration? Carbon dioxide is released, when they die carbon is released 24 of 33 What happens when wood or fossil fuels are burnt? Carbon dioxide is released 25 of 33 Why is temperature important in decay? Speed at which they decay, chemical reactions work better in warmer temp, slow down or stop if too cold, if too hot enzymes denature 26 of 33 Why is moisture important in decay? Grow faster in moist conditions, makes it easier to digest food, prevents drying out 27 of 33 Why is oxygen important in decay? Some are anaerobic, most are aerobic. Decay better in oxygen level good cause they need it 28 of 33 What can the process of decay be used for? Compost 29 of 33 Why is the compost good? Contains lots of nutrients , makes good fertiliser 30 of 33 What happens when bacteria decompose waste material in anaerobic conditions? They produce methane 31 of 33 What is methane? Flammable gas which can be used as fuel 32 of 33 How can you produce methane as a fuel? In biogas generators 33 of 33
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