Question

Some plants (grasses) tend to contain a greater concentration of chlorophyll than others (pines). can you develop a hypothesis to explain this? would it be testable?

Answer 1

The greater concentration of chlorophyll can be explained by lots of different reasons, the only thing here is to fit one of them in this problem.

Step-by-step explanation:

Let's think about it, there are some plants that need more energy than other, this can be explained by their use of energy, their production level, their storage of energy, but in this case we'll use only one of these factors, the use of energy. This plant needs a very good amount of energy to survive and spread around its seeds, this energy will mostly come from the chemical reactions happening inside of it, photosynthesis.

This process will use the light as a source of energy, as well as CO2, turning this into energy at the end of the process. So if this plant needs more energy than the others, the levels of chlorophyll can be higher because of this. Now it's time to test it, and it can be testable by checking the quantity of chlorophyll and their production, after that, get some plants exposed to less light sources, the same species, to check the quantity of chlorophyll on it, that's one way how you can test it.

Answer 2

Some plants such as grasses have more chlorophyll than others such as pines. The concentration of chlorophyll in any plant depends on many factors.
Grasses are green because they contain chlorophyll pigment. These are C4 plants that can carry out photosynthesis efficiently. Grasses tend to concentrate carbon dioxide and have more chlorophyll concentration. This helps in the adaptation process of grasses as they can make their own food in adverse conditions also.
Pines are evergreen trees that do not fall their leaves in winter. These produce their food by photosynthesis. With the age of the pines, the amount of chlorophyll decreases and thus the rate of photosynthesis also decreases.
The hypothesis can be, greater the tendency of plants to concentrate the carbon dioxide, greater will be the concentration of chlorophyll in the leaves.
Yes, this hypothesis can be easily tested by measuring the amount of concentrated carbon dioxide and amount of chlorophyll in grasses and in pines. The difference in the amount of chlorophyll can be compared between the two plants and result can be noted.