The right answer is The plant cell wall provides a more rigid structure.
Plant cells are differentiated from animal cells by the cell wall (among others, they differ in size, vacuoles and the presence of chloroplasts). This wall, called the pectocellulosic wall (composed of pectin and cellulose), gives a rigid structure to the cell and a polygonal morphology to the cell.
Chromosomes are a DNA molecule, that cannot be seen underneath a microscope. However, the DNA in chromosomes become pushed together during cell division, which then allows scientists to see its material under a microscope.
Answer:
B
Explanation:
A doesn't make sense
c at night plant use oxygen and not carbon
Answer:
Kinases refer to the group of enzymes which catalyze the transfer of phosphate group to their substrate. The phosphate group is usually transferred from high energy phosphate donating molecules such as ATP and GTP.
Addition of phosphate group may activate some proteins or enzymes while it may deactivate other enzymes.
For example, CDK-activating kinase adds phosphate groups to the CDK in order to activate them.