Growth and development: WAEC Biology Past Questions and Answers

What the WAEC syllabus covers in Growth and development

Our summary: What growth is, where plants grow fastest, how hormones control it, and tropisms.

• Basis of growth: cell division (mitosis), enlargement and differentiation
• Aspects of growth: increase in dry weight, irreversible increase in size and length and increase in number of cells
• Regions of fastest growth in plants (Observation of root tip and shoot tip are required.)
• Influence of growth hormones and auxins (Regulation of growth by hormones should be mentioned.)
• Growth curvatures (tropisms) (Types of tropisms should be demonstrated.)
• Development: enlargement and differentiation (Microscopic examination of the different regions of growth and development: region of cell division, elongation, differentiation and maturation. Processes that result in primary and secondary growth.)

Syllabus content © The West African Examinations Council (WASSCE (harmonised West African syllabus)).