Biology Practical 2020 Answers //free\\ - O Level

Identifying parenchyma, xylem, or epidermal cells accurately based on cell wall thickness. B. Food Tests (Biochemical Analysis)

If asked to modify or design an experiment to test the effect of temperature on enzyme activity, your answer must include: o level biology practical 2020 answers

: Common improvements include using a thermostatically controlled water bath for better temperature control. the iodine solution turns blue-black

At 0 minutes, the iodine solution turns blue-black, indicating the presence of starch. As time progresses, the color transitions to brown, and finally remains yellow-orange. This indicates that all starch has been fully hydrolysed into maltose by the amylase enzyme. the color transitions to brown