Biology 12 Chapter 16 - Support and Movements - 1

Biology 12 Chapter 16 - Support and Movements - 1

1. Both plants and animals need support against?
a) Physical activities
b) Gravity
c) Danger
d) Locomotion

2. The …………… cells in plants give support to the baby plants?
a) Collenchymatous
b) Sclerenchyma fibres
c) Parenchymatous
d) Sclerenchyma sclereids

3. The ……………..cells in plants give support to the adult plants?
a) Tracheids
b) Parenchymatous
c) Collenchymatous
d) Sclerenchymatous

4. Which is NOT provide support in animals?
a) Tissues
b) Muscles
c) Cartilage
d) Bones

5. Animals and plants show a variety of activities such as?
a) Physical and biochemical
b) Only biochemicals
c) None of these
d) Mechanical

6. The main difference between plants and animals is?
a) In their physiology
b) In their stuctures
c) In their behaviors
d) In their locomotion

7. The internal hydrostatic pressure in plant cells is called?
a) Turgor pressure
b) Vacuolar pressure
c) Turgidity
d) Osmotic pressure

8. The living cells of epidermis, cortex and pith take in water by?
a) Active transport
b) Transpiration
c) Diffusion
d) Osmosis

9. What happened if turgidity is loss in herbaceous stem?
a) Rigid
b) Wilts
c) Weight bearing
d) Resistant to bending

10. Which of the following statements about Xylem is FALSE?
a) They are tough and inextensible
b) They are not arrange as a ring in the stem
c) They provides resistance to wind stress
d) They give support to the plants

11. The loss of water due to ……………...from plant cells causes wilting?
a) Osmosis
b) Ex-cytosis
c) Pinocytosis
d) Ex-osmosis

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