Most roots are positively geotropic The negatiely

Consider the given statement regarding roots and choose the option having most correct statement I epiphytic roots are hygroscopic II climbing roots of ficus pumila secrete a gummy substance to stick to the support III roots are positively geotropic negatively phototropic and negatively hydrotopic IV cells of zone of elongation in a root loose their power to divide Choose the correct option

"Roots are positively geotropic." The exception to this statement is

Pneumatophores are common in plants growing in saline marshy/ swampy area along seashores and estuaries. Select the CORRECT statement about such roots. (a) These are modifications of adventitious root system. (b) These are positively geotropic. (c) These are negatively geotropic. (d) None is correct

Identify the mismatched pair. 1) Roots- Positively geotropic 2) Stem- Negatively geotropic 3) Sunflower- Thigmonasty

The root of the plant is …….. . (i)positively phototropic but negatively geotropic (ii) positively geotropic but negatively phototropic (iii) negatively phototropic but positively hydrotropic (iv) negatively hydrotropic but positively phototropic

The root of a plant is: (i) positively phototropic but negatively geotropic (ii) positively geotropic but negatively phototropic (iii) negatively phototropic but positively hydrotropic (iv) negatively hydrotropic but positively phototropic

Primary root is : 1. Positively geotropic 2. Positively hydrotropic 3. Negatively geotropic 4. Negatively hydrotropic Code:

Select the correct code.Primary root is 1. Positively geotropic 2. Positively hydrotropic 3 Negatively geotropic 4. Negatively hydrotropic

Shoot is positively phototropic and negatively geotropic.

Assertion: Presence of pneumatophores is a special adaptation of hydrophytes. Reason: Pneumatophores are positively geotropic shoots that have lenticels and help in gaseous exchange.