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Biology 11 Chapter - 10
Form and Function in Plants -5
1.
Which one of the following is the function of xylem parenchyma?
a) All of these
b) Food storage
c) Transport
d) Gaseous exchange
2.
Which one of the following is not true about xylem fibres?
a) They have very thin walls
b) They are originated from tracheids
c) They have very thick walls
d) They don't conduct water
3.
Which one of the following is true about phloem tissue?
a) No mechanical function
b) Strong mechanical function
c) Non living cells
d) One type of cells
4.
Which one of the following is not an organic food?
a) Carbon dioxide
b) Protein
c) Lipid
d) Carbohydrate
5.
The source of energy in the photosynthesis is?
a) Sun
b) Moon
c) Stars
d) Air
6.
The movement of molecules from a region of their higher Concentration to the region of lower concentration is known as?
a) Diffusion
b) Photosynthesis
c) Respiration
d) Transpiration
7.
The diffusion of water molecules through living membranes is known as?
a) Osmosis
b) Diffusion
c) Transpiration
d) Respiration
8.
The dilute solution is known as?
a) Hypotonic
b) Hypertonic
c) Isotonic
d) Tonic
9.
The concentrated solution is known as?
a) Hypertonic
b) Hypotonic
c) Isotonic
d) Tonic
10.
The shrinkage of the protoplasm of a cell due to exosmosis is called as?
a) Plasmolysis
b) Diffusion
c) Transpiration
d) Photosynthesis
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