surface area of the leaf
.
temperature
.
Which factor does not affect the rate of transpiration in plant a surface area of the leaf B temperature c presence of cuticle d none of these?
(d)
The chlorophyll content of leaves
will not directly affect transpiration, while temperature, light and wind speed directly affect the transpiration.
Which factor does not the rate of transpiration in plants?
Direct effect of light
is on the opening and closing of stomata. Bright light is the chief stimulus which causes stomata to open. It is simply because of this reason that all plants show a daily periodicity of transpiration rate.
What 4 factors affect the rate of transpiration?
- temperature.
- humidity.
- wind speed.
- light intensity.
Which of the following is not directly affect transpiration?
Chlorophyll content of leaves
does not directly affect rate of transpiration.
Which does not affect the rate of transpiration?
Some internal factors also affect rate of transpiration e,g., leaf area, leaf stucture and age of plants.
Chlorophyll content of leaves
does not directly affect rate of transpitation.
Why stomatal movement is not affected by o2 concentration?
Stomata movement is not affected by O
2
concentration.
An increase in temperature causes stomata to open due to
its effect on the permeability of the guard cells. An increase in the intensity of light makes the guard cells go turgid, thus influencing the stomatal movement.
What increases the rate of transpiration?
Wind and air movement
: Increased movement of the air around a plant will result in a higher transpiration rate. Wind will move the air around, with the result that the more saturated air close to the leaf is replaced by drier air.
What factors affect translocation in plants?
Factors Affecting Translocation Rate
The rate of photosynthesis
(which is affected by light intensity, CO
2
concentration, temperature, etc.) The rate of cellular respiration (this may be affected by any factor which physically stresses the plant)
What is the rate of transpiration?
The rate at which transpiration occurs refers to
the amount of water lost by plants over a given time period
. Plants regulate the rate of transpiration by opening and closing of stomata (Figure 5.14).
What are the factors affecting transpiration?
- temperature.
- humidity.
- air movement.
- light intensity.
How does leaf size affect transpiration rate?
Internal factors that affect transpiration rates
The leaf area influences
the rate of transpiration. The wider the leaf area, the greater the rate of transpiration because wide leaves tend to have more stomata [5].
How does a plant reduce its transpiration rate?
Plants regulate the rate of transpiration
by controlling the size of the stomatal apertures
. The rate of transpiration is also influenced by the evaporative demand of the atmosphere surrounding the leaf such as boundary layer conductance, humidity, temperature, wind and incident sunlight.
What is the effect of transpiration in the atmosphere?
How Plant Transpiration Affects the Atmosphere. When the sun sufficiently raises atmospheric temperature,
plants ‘sweat' by releasing excess water, thereby cooling themselves and the air
. Large amounts of transpired water above forest canopies can induce cloud cover and rain. This further helps cool the space below.
Which is not a function of transpiration?
Since water vapours are lost through transpiration, the minerals are left behind as they cannot evaporate along with water. So the correct answer is ‘
Excretiom of minerals
‘.
Does light affect the rate of transpiration?
Light intensity: The
transpiration rate is increased due to the increase in light intensity
. During daytime in the sunlight, the rate of transpiration is faster. … During dark, the stomata are closed, and hence transpiration hardly occurs at night.
