As Biology (7401/2) Paper 2 Specimen 2014 Exam Questions (31 Terms) With Verified Definitions Updated 2024

03 . 1) Figure 3 represents one process that occurs during protein synthesis. Name the process shown. [1 mark] {Ans: Translation;}Calculate the index of diversity of this sample. Show your working. Use the following formula to calculate the index of diversity. 𝑑 = 𝑁(𝑁 − 1) Σ𝑛(𝑛 − 1) where 𝑁 is the total number of organisms of all species and 𝑛 is the total number of organisms of each species [2 marks] {Ans: 2.68(6);}02 . 2) The scientist concluded that the cells in flask G took up sodium ions by active transport. Explain how the information given supports this conclusion. [4 marks] {Ans: 1. Uptake in flask G much greater than in flask F; 2. Showing use of ATP in flask G; 3. Sodium ion concentration in flask G falls to zero; 4. Showing uptake against a concentration gradient;}07 . 1) To reduce the damage caused by insect pests, some farmers spray their fields of crop plants with pesticide. Many of these pesticides have been shown to cause environmental damage. Bt plants have been genetically modified to produce a toxin that kills insect pests. The use of Bt crop plants has led to a reduction in