B2 2 Organisms in the environemnt 0.0 / 5 ? BiologyEcology and Environmental ScienceGCSEAQA Created by: jkavCreated on: 17-04-14 12:16 Name the solution used to test a leaf for starch. Iodine solution 1 of 7 What is the result of the iodine test for starch? The regions containing starch will turn blue - black. Regions without starch will look yellowy - brown. 2 of 7 What is the word equation for photosynthesis? carbon dioxide + water + light energy = glucose + oxygen 3 of 7 Give three physical factors which affect the distribution of plants Three of: temperature, availability of nutrients, water, oxygen, carbon dioxide, amount of water 4 of 7 Why would there be little point in heating a green house on a summer's day? It will be hot enough anyway, so it would be a waste of energy. The rate of photosynthesis may stop if the temperature becomes too high. 5 of 7 What is meant by the term 'limiting factors' in photosynthesis? Factors, such as light, temperature and carbon dioxide, which might prevent the rate of photosynthesis increasing above a certain point. 6 of 7 How can you use a quadrat to make a line transect? A line is marked between two points and then the quadrat is placed at regular intervals along the line. The organisms in the quadrat are counted 7 of 7
Comments
No comments have yet been made