1. Leaf as a broad absorptive surface: Most plants have broad leaves that increases the relative
surface area available for absorption of solar radiation. Plants with smaller (small surface area)
leaves absorb less solar radiation, but those may be beneficial for other environmental
conditions.
2. Modification of leaves in xerophytes: Xerophytes (succulents) have leaves modified into thorn
meant to minimize transpirational loss of water.
3. CAM pathway is present in many xerophytes. It allows the plants to maintain the stomata in
closed state for prolonged periods when exposed to water scarcity. Closure of stomata prevents
loss of water from plant tissue.
4. C4 pathway present in many plants of temperate regions spatially isolates “CO2 absorption”
and “CO2 fixation” through development of Kranz anatomy. This spatial separation benefits the
plant by minimizing the need of keeping stomata in open state during photosynthesis. It
therefore, also helps the plant increase efficiency of CO2 uptake under low [CO2] in
environment as well as minimize transpirational loss of water during photosynthesis.
Solution
1. Leaf as a broad absorptive surface: Most plants have broad leaves that increases the relative
surface area available for absorption of solar radiation. Plants with smaller (small surface area)
leaves absorb less solar radiation, but those may be beneficial for other environmental
conditions.
2. Modification of leaves in xerophytes: Xerophytes (succulents) have leaves modified into thorn
meant to minimize transpirational loss of water.
3. CAM pathway is present in many xerophytes. It allows the plants to maintain the stomata in
closed state for prolonged periods when exposed to water scarcity. Closure of stomata prevents
loss of water from plant tissue.
4. C4 pathway present in many plants of temperate regions spatially isolates “CO2 absorption”
and “CO2 fixation” through development of Kranz anatomy. This spatial separation benefits the
plant by minimizing the need of keeping stomata in open state during photosynthesis. It
therefore, also helps the plant increase efficiency of CO2 uptake under low [CO2] in
environment as well as minimize transpirational loss of water during photosynthesis..
1. Leaf as a broad absorptive surface Most plants have broad leaves.pdf
1. 1. Leaf as a broad absorptive surface: Most plants have broad leaves that increases the relative
surface area available for absorption of solar radiation. Plants with smaller (small surface area)
leaves absorb less solar radiation, but those may be beneficial for other environmental
conditions.
2. Modification of leaves in xerophytes: Xerophytes (succulents) have leaves modified into thorn
meant to minimize transpirational loss of water.
3. CAM pathway is present in many xerophytes. It allows the plants to maintain the stomata in
closed state for prolonged periods when exposed to water scarcity. Closure of stomata prevents
loss of water from plant tissue.
4. C4 pathway present in many plants of temperate regions spatially isolates “CO2 absorption”
and “CO2 fixation” through development of Kranz anatomy. This spatial separation benefits the
plant by minimizing the need of keeping stomata in open state during photosynthesis. It
therefore, also helps the plant increase efficiency of CO2 uptake under low [CO2] in
environment as well as minimize transpirational loss of water during photosynthesis.
Solution
1. Leaf as a broad absorptive surface: Most plants have broad leaves that increases the relative
surface area available for absorption of solar radiation. Plants with smaller (small surface area)
leaves absorb less solar radiation, but those may be beneficial for other environmental
conditions.
2. Modification of leaves in xerophytes: Xerophytes (succulents) have leaves modified into thorn
meant to minimize transpirational loss of water.
3. CAM pathway is present in many xerophytes. It allows the plants to maintain the stomata in
closed state for prolonged periods when exposed to water scarcity. Closure of stomata prevents
loss of water from plant tissue.
4. C4 pathway present in many plants of temperate regions spatially isolates “CO2 absorption”
and “CO2 fixation” through development of Kranz anatomy. This spatial separation benefits the
plant by minimizing the need of keeping stomata in open state during photosynthesis. It
therefore, also helps the plant increase efficiency of CO2 uptake under low [CO2] in
environment as well as minimize transpirational loss of water during photosynthesis.
![1. Leaf as a broad absorptive surface: Most plants have broad leaves that increases the relative
surface area available for absorption of solar radiation. Plants with smaller (small surface area)
leaves absorb less solar radiation, but those may be beneficial for other environmental
conditions.
2. Modification of leaves in xerophytes: Xerophytes (succulents) have leaves modified into thorn
meant to minimize transpirational loss of water.
3. CAM pathway is present in many xerophytes. It allows the plants to maintain the stomata in
closed state for prolonged periods when exposed to water scarcity. Closure of stomata prevents
loss of water from plant tissue.
4. C4 pathway present in many plants of temperate regions spatially isolates “CO2 absorption”
and “CO2 fixation” through development of Kranz anatomy. This spatial separation benefits the
plant by minimizing the need of keeping stomata in open state during photosynthesis. It
therefore, also helps the plant increase efficiency of CO2 uptake under low [CO2] in
environment as well as minimize transpirational loss of water during photosynthesis.
Solution
1. Leaf as a broad absorptive surface: Most plants have broad leaves that increases the relative
surface area available for absorption of solar radiation. Plants with smaller (small surface area)
leaves absorb less solar radiation, but those may be beneficial for other environmental
conditions.
2. Modification of leaves in xerophytes: Xerophytes (succulents) have leaves modified into thorn
meant to minimize transpirational loss of water.
3. CAM pathway is present in many xerophytes. It allows the plants to maintain the stomata in
closed state for prolonged periods when exposed to water scarcity. Closure of stomata prevents
loss of water from plant tissue.
4. C4 pathway present in many plants of temperate regions spatially isolates “CO2 absorption”
and “CO2 fixation” through development of Kranz anatomy. This spatial separation benefits the
plant by minimizing the need of keeping stomata in open state during photosynthesis. It
therefore, also helps the plant increase efficiency of CO2 uptake under low [CO2] in
environment as well as minimize transpirational loss of water during photosynthesis.](https://image.slidesharecdn.com/1-230628050222-3ea4d9bc/85/1-Leaf-as-a-broad-absorptive-surface-Most-plants-have-broad-leaves-pdf-1-320.jpg)
