Question 10 — Suresh prepares slides with pollen - Questions at the end of the chapter - Chapter 11 - Reproduction: How Life Continues (Exploration)

Last updated at July 3, 2026 by

Question 10
Suresh prepares slides with pollen grains in different sugar concentrations (0%, 2.5%, 5%, 7.5%, 10%) to study the germination of pollen. (i) What are the different hypotheses which can be tested using this set-up? (ii) What parameters should be kept the same in this set-up?
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  • (i) Hypotheses: e.g. pollen germinates best at a particular sugar concentration; too little or too much sugar reduces germination.
  • (ii) Kept the same: temperature, type/age of pollen, amount of pollen, time allowed, humidity and light — only the sugar % is varied.
Pollen Germination Study Hypothesis: sugar percent affects germination Keep same: temperature, pollen, time Vary only the sugar concentration
Back to: 11.2.3 How does the process of pollination occur in flowers?
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