Biology 12 Chapter 16 - Support and Movements - 2

Biology 12 Chapter 16 - Support and Movements - 2

1. The loss of water due to ……………...from plant cells causes wilting?
Ex-cytosis
Osmosis
Pinocytosis
Ex-osmosis

2. The turgor pressure is extremely important to maintain the ……………in plants?
Support
Rigidity
Turgidity
Transport of water

3. The vascular bundles are strengthened by additional sclerenchyma fibers, which form .........................?
Sclerenchyma fiber
Bundle cap
Sclerenchyma cells
Sclereides

4. Bundle cap are form in the stem of plants?
Sunflower and maize
Sunflower
Maize
None

5. Turgor pressure is generated by high osmotic pressure of the cell ………………?
Cytoplasm
Vacuole
Plasma membrane
Protoplasm

6. The membrane that bounds vacuole is called?
Protoplast
Plasma membrane
Chromoplast
Tonoplast

7. Tonoplast contains a number of active transport systems that pump ………….into vacuole?
Water
Extracellular fluid
Larg molecules
Ions

8. Water enter in the vacuole due to?
Higher ionic concentration in extracellular fluid
Higher water concentration in extracellular fluid
Higher ionic concentration in vacuole
Lower water concentration in vacuole

9. Which of the following statement is TRUE when water enters the vacuole?
Effective in bending
Provides mechanical support to soft tissues
Reduce osmotic pressure
Loss turgidity

10. The tissues which provide support to the plants are?
Sclerenchyma and collenchyma
Collenchyma
Sclerenchyma
Sclereides

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