PLANTS
PLANT TISSUE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Dry mass
|
|
|
Weight mass
|
|
|
Height
|
|
|
Surface area
|
Detailed explanation-1: -The best way to measure the growth of a plant is by the use of an auxanometer. Auxanometer is a device which is used to measure the growth of a plant. In plants growth is defined when the length of roots and stems increase in size. In the process of growth no new organs should be formed.
Detailed explanation-2: -We can use calorimetry to directly measure biomass. We can directly measure the biomass by burning a sample of the organism in a calorimeter. The sample has to be dry.
Detailed explanation-3: -Growth is, therefore, measured by a variety of parameters some of which are: increase in fresh weight, dry weight, length, area, volume and cell number.
Detailed explanation-4: -Measuring dry mass is more accurate than measuring wet mass. This is because water content can change depending on conditions. A plant may contain less water if the weather has been hot and dry. Measuring dry mass of plants shows that their growth has three phases.