| 1 |
Succelent organs are present in . |
Halophytes
Xerophytes
Hydrophytes
Mesophytes
|
| 2 |
What is TRUE according to the pressur eflow mechanism of food transport. |
Water enters the source, creating pressure.
Solutes move from low to high concentration
Movement of food in pholem is due to gravity
Water is pulled from the sink
|
| 3 |
In most plans the food is transported in the form of. |
Maltose
Sucrose
Glucose
Starch
|
| 4 |
Which ion plays a role in the opening of stomata. |
Sodium
Potassium
Calcium
Magnesium
|
| 5 |
Under which condition , there will be high rate of transpiration? |
High humidity
Low ligh intentisy
Water logged soil
Wind
|
| 6 |
The transpiration is requlated by |
Xylem
Pholem
Guard cells
MesophyII
|
| 7 |
Water moves fromt he soil into root cells by |
Bulk flow
Facilitated diffusion
Osmosis
Active Transport
|
| 8 |
Root hairs absorb salts from soil by |
Diffusion
Filtration
Active transport
Osmosis
|
| 9 |
The primary function of root hairs is. |
Synthesis of proteins
Increase surface area for absorption
Strogage of food
Transport of nutrients
|
| 10 |
Which element is requried by plants for the formationof chlorophyII. |
Magnesium
Phosphorus
Calcium
Suphur
|
| 11 |
Which of the following plant nutrints is requried in large amount. |
Iron
Potassium
Zinc
Boron
|
| 12 |
Where does the Krebs cycle occur in a cell |
Nucleus
Ribosome
ChlorphyII
Mitochndira
|
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