Plant Growth & Development - Practice Questions & MCQ

• Development is the sum of two processes: growth and differentiation. 
• To begin with, the development of a mature plant from a zygote (fertilised egg) follow a precise and highly ordered succession of events. 
• During this process, a complex body organisation is formed that produces roots, leaves, branches, flowers, fruits, and seeds, and eventually, they die
• The first step in the process of plant growth is seed germination. 
• The seed germinates when favourable conditions for growth exist in the environment. 
• In the absence of such favourable conditions, the seeds do not germinate and go into a period of suspended growth or rest. 
• Once favourable conditions return, the seeds resume metabolic activities and growth takes place.

Growth:

• Growth is regarded as one of the most fundamental and conspicuous characteristics of a living being. 
• Growth can be defined as an irreversible permanent increase in the size of an organ or its parts or even of an individual cell.
• Growth is accompanied by metabolic processes (both anabolic and catabolic), that occur at the expense of energy.
• Therefore, for example, expansion of a leaf is growth.
• Plants display indefinite growth.
• On the other hand, animals show a uniform and fixed growth.