Biology 12 Chapter 16 - Support and Movements - 3

Biology 12 Chapter 16 - Support and Movements - 3

1. Secondary cell walls of sclerenchyma cells are made of?
Cellulose
Chitin
Lignin
Hemicellulose

2. Most of the sclerenchyma cells are?
Non-living
Soft and living
Living
Soft and non-living

3. How many types of sclerenchymatous cells?
Two
Three
Five
Four

4. The long and cylindrical structure may exist as solid bundle in xylem is called?
Vessels
Sclereides
Tracheae
Fibers

5. Fibers are…………and …………...exist in xylem as bundle caps?
Short,cylindrical
Short, tubular
Long, cylindrical
Long, tubular

6. Sclereides are found in?
Seed coats and nut shells
Phloem
xylem
Seed coats and fruits peel

7. Sclereides are …………..than fibers?
Thicker
Shorter
Longer
Thiner

8. Long water conducting pipe in xylem is called?
Tracheids
Sclereides
Vessels
Fibers

9. Collenchyma cells usually lack?
Elasticity
Primary cell walls
Secondary cell walls
Protoplast

10. Collenchyma cells are elastic, …………with the growth of stems and leaves?
Reduce
Hard Thicker
Elongate

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