ICSE Class 10 Plant Growth and Development — Mock Test

Free online mock test for Plant Growth and Development (ICSE Class 10 Botany) — 74 competency-based questions with instant marking. Try the samples below, then take the full test free.

Sample questions

1.The exponential phase of geometric growth in which growth increases rapidly is also called the:
- A.Lag phase
- B.Log phase
- C.Stationary phase
- D.Senescent phase
2.Spraying sugarcane with gibberellins increases yield because gibberellins:
- A.Promote female flowers
- B.Increase the length of the stem which stores sugar
- C.Speed up fruit ripening
- D.Close the stomata
3.Which of the following is NOT one of the five main groups of natural plant growth regulators?
- A.Auxins
- B.Gibberellins
- C.Florigen
- D.Cytokinins
4.When living differentiated cells that have lost the capacity to divide regain it under certain conditions, the phenomenon is called:
- A.Differentiation
- B.Dedifferentiation
- C.Redifferentiation
- D.Senescence
5.The act leading to maturation of cells, during which they undergo structural changes in cell walls and protoplasm, is called
- A.Differentiation
- B.Dedifferentiation
- C.Redifferentiation
- D.Determinate growth

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