Biology 11 Chapter - 10 Form and Function in Plants -13

Biology 11 Chapter - 10
Form and Function in Plants -13

1. The growth by lateral meristems in plants is known as?

a) Secondary growth
b) Primary growth
c) Tertiary growth
d) Open growth

2. The bulk of tissues which is added laterally to the plant during secondary growth is known as?

a) Wood
b) Lenticle
c) Parenchyma
d) Xylem

3. The lateral meristem is generally known as?

a) Cambium
b) Wood
c) Phloem
d) Pith

4. The cambium which is located between the primary xylem and phloem is known as?

a) Vascular cambium
b) Non vascular cambium
c) Cork cambium
d) Wood

5. The cambium which is located outside the cortex is known as?

a) Cork cambium
b) Vascular cambium
c) Wood
d) Pith

6. The production of secondary xylum in growing plants ___ the efficiency of water and salt conduction?

a) Increases
b) Decreases
c) Does not affect

7. The size of the xylem tissue depends upon the need of availability of?

a) A. B and d are correct
b) B. Water
c) C. Light
d) D. Salts

8. The size of zylem is large during?

a) Spring and summer
b) Spring and autumn
c) Winter and autumn
d) Winter and summer

9. The annual rings formed by the xylem tissue are used?

a) To determine the age of the plant
b) To determine the water holding capacity of the plant
c) To determine movements in plants
d) To determine respiratory capacity of the plant

10. The phenomenon in which the presence of a growing apical bud inhibits the growth of lateral buds is known as?a) Apical dominance
b) Lateral dominance
c) Apical meristem
d) Secondary growth

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