This chart shows the types of ground tissue and their functions. mc012-1.jpgmc012-2.jpg which row (a, b, c, or d) best matches each ground tissue with its function? a b c d

The right answer is A.

Let's resume Plant tissues and their roles:

* Meristems are devolved to growth by cell multiplication;

* The covering fabrics ensure the protection of the organs vis-à-vis the

external environment;

* Parenchyma represent the bulk of the organ volume; they are

formed of poorly differentiated cells and perform various functions:

chlorophyll assimilation, storage of reserves ...

* Support tissues are made of thick-walled cells of lignin or

cellulose, giving the organs a certain rigidity;

* The conductive tissues ensure the circulation of the sap, to the organs

aerial for raw or ascending sap, to underground organs for

sap developed or descending;

* The endoderm and the pericycle are two cellular bases surrounding the

central cylinder;

* The secretory tissues release various substances (nectar, latex ...).

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.