Go through the following statements
(i) In geometric growth, following mitotic cell division, only one daughter cell continues to divide while the other differentiates and mature.
(ii) The ability of plants to follow different pathways in response to environment or phases of life in order to form different kinds of structures, is called plasticity.
(iii) The mathematical expression for arithmetic growth is Lt = L0 + rt, while for geometric growth, it is W1 = W0ert.
(iv) The form of growth wherein new cells are always being added to the plant body by the activity of meristem, is called the open form of growth.
Which of these are correct.
(i) In geometric growth, following mitotic cell division, only one daughter cell continues to divide while the other differentiates and mature.
(ii) The ability of plants to follow different pathways in response to environment or phases of life in order to form different kinds of structures, is called plasticity.
(iii) The mathematical expression for arithmetic growth is Lt = L0 + rt, while for geometric growth, it is W1 = W0ert.
(iv) The form of growth wherein new cells are always being added to the plant body by the activity of meristem, is called the open form of growth.
Important Questions on Plant Growth and Development
(A) Assyrians recorded information of crop plants in the picture form.
(B) Nehemiah Grew studied the anatomy of plant tissue.
(C) Bouskein refers to cattle.
(D) Application of physical and chemical principles developed new branches of Botany like genetics.
Production of tissues in woody dicotyledonous plants to perform specific function
Heterophylly at different stages of growth
Formation of meristems from parenchyma cells
In the following diagrammatic representation showing stages of embryonic development, identify the type of growth phase labelled as and :
Match the plant hormones in Column I with their primary function in Column II.
| Column I | Column II |
| P. Abscisic acid | i. Promotes disease resistance |
| Q. Ethylene | ii. Maintains seed dormancy |
| R. Cytokinin | iii. Promotes seed germination |
| S. Gibberellins | iv. Promotes fruit ripening |
| v. Inhibits leaf senescence |
Choose the correct combination:
