O Level Biology Practical 2020 Answers Jun 2026

Common topics in the 5090 series included the effects of temperature on pigments and plant tissue reactions.

Unknown solutions X, Y, Z tested for reducing sugars, starch, protein, and fat. o level biology practical 2020 answers

: Must show the relative thickness of the green fruit skin (exocarp) vs. the white tissue (mesocarp). Common topics in the 5090 series included the

Perform a Benedict's test on samples labeled A–E to estimate glucose concentration. Common Results: Z tested for reducing sugars

Higher temperatures damaged cell membranes, causing more red pigment to leak into the water. Experiment 2: Banana Browning (5090/61 Alternative) Topic: Enzyme activity and oxidation.