At what time of day is transpiration rate greatest? Explain your answer.
At 12:00 (midday)
because that is when water flow is at its maximum.As transpiration creates most of the water flow they are both at a maximum at the same time.
What time of the day is best for photosynthesis?
If you want to get the maximal photosynthetic rate, the measure should be taken
around 10:00 am
. If you want to get the diurnal variation curve, the measure should be taken from sunrise to sunret, maybe 6 am to 6 pm, with 2 hours as an interval. Transpirate rate should be measured after sunset at least 0.5 hour.
What is the best time for photosynthesis?
For maximum rates of photosynthesis, measurements are made
around 10:00AM
. To get the diurnal range, take measurements from 6:00AM to 6:00PM at a two-hour intervals. This can tell you when the photosynthetic rate is at its maximum.
Do plants photosynthesis at night?
No, plants do not perform photosynthesis at night
. … Photosynthesis is the process by which light energy is converted to chemical energy with the help of chlorophyll pigment, which absorbs light energy.
Which time photosynthesis occurs?
They get energy from the sunlight by the process of photosynthesis and contain chlorophyll A and B that gives them their green color. Complete answer: Photosynthesis in plants occurs only
during the day when there is the sunlight
but plants respire throughout the day and night.
Do all plants release oxygen at night?
Plants release oxygen during the day in the presence of natural light through the process of photosynthesis. While at night,
the plants uptake oxygen
and release carbon dioxide, which is called respiration. … Having these plants at home improves air quality throughout the day and helps people to sleep better at night.
Do plants respire at night?
Plant respiration occurs 24 hours per day, but
night respiration is more evident since the photosynthesis process ceases
. During the night, it is very important that the temperature is cooler than during the day because plants can experience stress.
What increases transpiration rate?
The rate of transpiration can be affected by:
light intensity, air movement, temperature and humidity
. Increased light intensity will increase the rate of photosynthesis so more water is drawn into the leaves where photosynthesis primarily takes place and therefore the rate of transpiration is greater.
Why is evapotranspiration higher in summer?
Potential Evapotranspiration
PET is higher in the summer, on less cloudy days, and closer to the equator, because
of the higher levels of solar radiation that provides the energy for evaporation
.
What is transpiration rate?
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).
Which plant gives oxygen 24 hours?
The Peepal tree
releases 24 hours of oxygen and determines atmospheric CO2. No tree releases oxygen at night . We also know that plants mostly produce oxygen during the day, and the process is reversed at night.
In which light photosynthesis takes place faster?
As far as the rate of photosynthesis is concerned, it is fastest in
white light
making the rate of photosynthesis maximum. After white, we have violet light where photosynthesis occur to a higher extent as it has the shortest wavelength hence has the max energy.
Do plants take in oxygen?
Most folks have learned that plants take up carbon dioxide from the air (to be used in photosynthesis) and produce oxygen (as a by-product of that process), but less well known is that
plants also need oxygen
. … So plants need to breathe — to exchange these gases between the outside and the inside of the organism.
Can photosynthesis take place without sunlight?
Photosynthesis is the biochemical process in which energy from sunlight is converted by plants, algae, and some bacteria into sugars, which are used by the organism as food. … However, there is a least one exception:
a little bacterium deep under the Pacific Ocean
which manages photosynthesis without sunlight.
Is photosynthesis a formula?
The photosynthesis equation is as follows:
6CO2 + 6H20 + (energy) → C6H12O6 + 6O2 Carbon dioxide + water + energy from light
produces glucose and oxygen.
Does transpiration occur at night?
Transpiration does not take place at night
, because the stomata present on the leaf surface are closed during the night hours.
