LATERAL ROOTS

Radius; Height and Lateral Surface

Vascular cambium in dicot root develops from Or In dicot root , initiation of lateral root and vascular cambium during secondary growth takes place from

(i) Arrangement of lateral root on tap root is ....A…… (ii) Arrangement of flower on floral axis is called …...B……. (iii) Arrangement of ovule in ovary is called as …..C……

pick up the wrong differneces between dicot and monocot root {:("Character","Dicot Root","Monocot Root"),("Activity of pericycle",-"Lateral root prodcution",-"Secondary growth and cambium"),("Vascular bundle",-"Diarch to tetrarch",-"Polyarch"),("Cambium",-"Lateral, development",-"Absent"),("Pith",-"Well developed",-"Poorly developed"):}

Select the correct statements among the following I. Aerial roots are chlorophyllous and assimilatory in Vanda and Taeniophyllum II. Two types of adventitious roots are found in sugarcane and maize III. Tap root and lateral roots possess nodules in bean and pea IV. Tap root and aerial adventitious roots are present in banyan and Chrysanthemum.

The location of apical meristms is (1) Lateral sides of roots and shoots (3) At the tips of roots and shoots. (4) Between apex and mature areas of roots and shoots.

Rhizome can be differentiated from root in the presence of (a)Lateral bud (b)Root cap (c) Nodes (d) Endogenous branching mark the correct option

Identify the correct pair of statement (i) pericyle parenchymatous in dicot root but sclerenchymatous in mature monocot root (ii) pericycle of both dicot and monocot root produces lateral roots during secondary growth (iii) All cells of dicot root endodermis are passage cells (iv) Xylem is produced in centripetal manner in roots of fruit bearing plants

Identify the correct pair of statements. I. Pericycle is parenchymatous in dicot root but sclerenchymatous in mature monocot root. II. Pericycle of booth dicot and monocot roots produces lateral roots during secondary growth. III. All cells in endodermis of dicot root are passage cells. IV. Xylem is produced in centripetal manner in roots of fruit bearing plants.

Study carefully the follwing statemnets and select in incorrect one (s). (i) Lateral roots develop from pericycle (ii) Endodermis is the innermostk layer of cortex (iii) Sap wood is the central, dark coloured, non-conducting part of secondary xylem. (iv) Hypodermis is always parenchy-matous in nature.