Explain the process of osmosis using the provided experimental setups (X, Y, and Z) and relate it to cell membranes and temperature effects.

Step 1: Answer Question 3. a) The process being investigated is osmosis*. b) Set up X acts as a control or comparison. Water moved out of tubing X, indicating that the solution inside tubing X had a higher water potential* (lower solute concentration) than the 5% sugar solution in the beaker. *c) • In set up Y, the water level increased slightly. This indicates that the sugar solution inside tubing Y had a lower water potential (higher solute concentration) than the 5% sugar solution in the beaker. Water moved by osmosis from the beaker into tubing Y. • In set up Z, the water level increased significantly. This indicates that the sugar solution inside tubing Z had a much lower water potential (much higher solute concentration) than the 5% sugar solution in the beaker. Water moved by osmosis from the beaker into tubing Z. d) A structure in cells that can be compared to the visking tubing is the cell membrane*. *e) High temperatures above 40^ can denature the proteins in the cell membrane, increasing its permeability. This would disrupt the selective permeability of the membrane, affecting the rate and direction of osmosis. Step 2: Answer Question 2. *a) Let H be the allele for normal haemoglobin and S be the allele for abnormal haemoglobin. Both parents have sickle cell trait, meaning their genotype is HS. We perform a Punnett square for the cross HS × HS: |c|c|c| & H & S \\ H & HH & HS \\ S & HS & SS \\ The possible genotypes of the offspring are HH, HS, and SS. The proportion of offspring that have sickle cell trait (genotype HS) is (2)/(4) = (1)/(2). The proportion is (1)/(2). b) Sickle cell trait (heterozygous genotype HS) provides resistance to malaria*. Malaria is a prevalent disease in many tropical countries. Individuals with sickle cell trait are more likely to survive malaria, leading to a higher frequency of the S allele and thus the trait in these populations. c) Another disease caused by gene mutation is cystic fibrosis*. Step 3: Answer Question 4. *a) • A: Ovule • B: Ovary • G: Filament b) The function of part D (stigma) is to receive pollen* during pollination. *c) i) After fertilization, part A (ovule) will develop into a seed*. ii) After fertilization, part B (ovary) will develop into a fruit*. Send me the next one 📸