Difficulty distribution
How the classified questions are distributed by difficulty.
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Practice Water Relations and Mineral Transport - Plant Physiology and Biochemistry - Life Sciences previous year questions organised from real papers, with year-wise coverage and clear topic navigation.
Every graph below is calculated only from this selection.
Year-wise coverage for Water Relations and Mineral Transport. Each bar uses a separate theme-derived color.
How the classified questions are distributed by difficulty.
MCQ, numerical, multiple-select and other formats found in these papers.
Top subjects by unique question coverage.
Top topics across the included previous year papers.
Top subtopics inside this exact selection.
Question coverage for the most populated papers. Every active PYP paper remains listed below.
Newest papers appear first. Sort by year, question coverage or name.
| Paper | Year / session | Questions in this view | Open |
|---|---|---|---|
| Life Sciences (XL) 2023 | 2023 | 1 | View paper |
| Life Sciences (XL) 2019 | 2019 | 1 | View paper |
| Life Sciences (XL) 2017 | 2017 | 1 | View paper |
| Life Sciences (XL) 2016 | 2016 | 5 | View paper |
| Life Sciences (XL) 2013 | 2013 | 1 | View paper |
Practice every matching question in batches of 20, with every available option.
The three plots P, Q and R (in different units) in the graph below represent the dependence of photosynthesis rate (PR), leaf expansion rate (LER) and translocation rate of assimilates (TR) in a plant on leaf water potential. Which of the following statements is correct in this regard?

The cell surface expands differently in different plant cells. Two common modes of expansion are shown below (X and Y). Each rectangular box represents a cell marked with dots on its surface. The spacing between the dots changes after the cell has undergone expansion as indicated by the arrow. Which of the following statements is correct with respect to the growth of root hair and pollen tube?

The continuous and dashed lines in the following graph represent the velocity of sap flow in two different parts of a plant at different times of a day. Which of the following statements is most appropriate based on this graph?

The schematic depicts an unexpanded plant cell within a hypocotyl with the arrangement of cellulose microfibrils marked on its cell wall. Which one of the following shapes would most likely result from the expansion of this cell if the pattern of the cellulose fibrils does not change?
