336453
Ascent of sap is the movement of water from the roots towards the
1 Aerial parts
2 Stem
3 Xylem vessels
4 Cells of cortex
Explanation:
Ascent of sap is the movement of water from the roots towards the aerial parts
BIOXI11: TRANSPORT IN PLANTS
336454
Cobalt chloride paper is dry state is placed on a dicot leaf during day then-
1 Become pink in day time when placed on lower surface
2 Become pink in day time when placed on upper surface
3 Become blue when placed on lower surface
4 Show change in colour to pink on both surface
Explanation:
The reason for this is more stomata are present on the ventral or lower surface of a dicot leaf than the upper or dorsal surface. Due to this more water vapor from the ventral surface is released than dorsal surface and hence cobalt chloride paper kept at the lower surface changes into pink color immediately.
BIOXI11: TRANSPORT IN PLANTS
336455
Statement A : Transpiration cools leaf surfaces, sometimes 30 to 35 degrees, by evaporative cooling. Statement B : Photosynthesis is limited by available water which can be swiftly depleted by transpiration.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Transpiration cools leaf surfaces, sometimes 10 to 15 degrees, by evaporative cooling.
BIOXI11: TRANSPORT IN PLANTS
336456
Plants require stomata for ____
1 Transpiration
2 Gaseous exchange
3 Transportation
4 Both 1 and 2
Explanation:
Plants require stomata for_transpiration and gaseous exchange.
336453
Ascent of sap is the movement of water from the roots towards the
1 Aerial parts
2 Stem
3 Xylem vessels
4 Cells of cortex
Explanation:
Ascent of sap is the movement of water from the roots towards the aerial parts
BIOXI11: TRANSPORT IN PLANTS
336454
Cobalt chloride paper is dry state is placed on a dicot leaf during day then-
1 Become pink in day time when placed on lower surface
2 Become pink in day time when placed on upper surface
3 Become blue when placed on lower surface
4 Show change in colour to pink on both surface
Explanation:
The reason for this is more stomata are present on the ventral or lower surface of a dicot leaf than the upper or dorsal surface. Due to this more water vapor from the ventral surface is released than dorsal surface and hence cobalt chloride paper kept at the lower surface changes into pink color immediately.
BIOXI11: TRANSPORT IN PLANTS
336455
Statement A : Transpiration cools leaf surfaces, sometimes 30 to 35 degrees, by evaporative cooling. Statement B : Photosynthesis is limited by available water which can be swiftly depleted by transpiration.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Transpiration cools leaf surfaces, sometimes 10 to 15 degrees, by evaporative cooling.
BIOXI11: TRANSPORT IN PLANTS
336456
Plants require stomata for ____
1 Transpiration
2 Gaseous exchange
3 Transportation
4 Both 1 and 2
Explanation:
Plants require stomata for_transpiration and gaseous exchange.
336453
Ascent of sap is the movement of water from the roots towards the
1 Aerial parts
2 Stem
3 Xylem vessels
4 Cells of cortex
Explanation:
Ascent of sap is the movement of water from the roots towards the aerial parts
BIOXI11: TRANSPORT IN PLANTS
336454
Cobalt chloride paper is dry state is placed on a dicot leaf during day then-
1 Become pink in day time when placed on lower surface
2 Become pink in day time when placed on upper surface
3 Become blue when placed on lower surface
4 Show change in colour to pink on both surface
Explanation:
The reason for this is more stomata are present on the ventral or lower surface of a dicot leaf than the upper or dorsal surface. Due to this more water vapor from the ventral surface is released than dorsal surface and hence cobalt chloride paper kept at the lower surface changes into pink color immediately.
BIOXI11: TRANSPORT IN PLANTS
336455
Statement A : Transpiration cools leaf surfaces, sometimes 30 to 35 degrees, by evaporative cooling. Statement B : Photosynthesis is limited by available water which can be swiftly depleted by transpiration.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Transpiration cools leaf surfaces, sometimes 10 to 15 degrees, by evaporative cooling.
BIOXI11: TRANSPORT IN PLANTS
336456
Plants require stomata for ____
1 Transpiration
2 Gaseous exchange
3 Transportation
4 Both 1 and 2
Explanation:
Plants require stomata for_transpiration and gaseous exchange.
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BIOXI11: TRANSPORT IN PLANTS
336453
Ascent of sap is the movement of water from the roots towards the
1 Aerial parts
2 Stem
3 Xylem vessels
4 Cells of cortex
Explanation:
Ascent of sap is the movement of water from the roots towards the aerial parts
BIOXI11: TRANSPORT IN PLANTS
336454
Cobalt chloride paper is dry state is placed on a dicot leaf during day then-
1 Become pink in day time when placed on lower surface
2 Become pink in day time when placed on upper surface
3 Become blue when placed on lower surface
4 Show change in colour to pink on both surface
Explanation:
The reason for this is more stomata are present on the ventral or lower surface of a dicot leaf than the upper or dorsal surface. Due to this more water vapor from the ventral surface is released than dorsal surface and hence cobalt chloride paper kept at the lower surface changes into pink color immediately.
BIOXI11: TRANSPORT IN PLANTS
336455
Statement A : Transpiration cools leaf surfaces, sometimes 30 to 35 degrees, by evaporative cooling. Statement B : Photosynthesis is limited by available water which can be swiftly depleted by transpiration.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Transpiration cools leaf surfaces, sometimes 10 to 15 degrees, by evaporative cooling.
BIOXI11: TRANSPORT IN PLANTS
336456
Plants require stomata for ____
1 Transpiration
2 Gaseous exchange
3 Transportation
4 Both 1 and 2
Explanation:
Plants require stomata for_transpiration and gaseous exchange.
