Aqa Gcse Combined Science Trilogy : Biology Paper 1 Questions And Answers 100% Verified A+ Guaranteed

How are root hair cells specialised? {Ans: For absorbing water and minerals: they grow into long "hairs" that stick out into the soil. This gives the plant a large surface area for absorbing water and mineral ions from the soil}Define transpiration {Ans: Transpiration is the loss of water vapour from the leaves and stems of plants through evaporation.}What happens to the body after it anaerobically respires? {Ans: A build up of lactic acid in the muscles, which is why it gets painful}What is the stomata and what is it's function? {Ans: Openings in the leaves of plants, particularly on the underside, they open and close by guard cells, allowing gasses to enter and leave the leaf}What is the function of the vein? {Ans: carries blood to the heart}How is light intensity and the temperature related in photosynthesis? {Ans: The higher the temperature and light intensity, the higher the rate of photosynthesis is, until a factor becomes limiting}What is the symbol equation for respiration? {Ans: C6H12O6 + 6O2 -> 6CO2 + 6H2O}How are muscle cells specialised? {Ans: For contraction: these cells are long so that they have space to contract and have lots