I think because there are no nutrients like nitrogen in rock sand and volcanic ash♀️
Glucose gets into the cells through a process called facilitated diffusion. This is a transport mechanism in which carrier proteins shuttle molecules across the cell membrane without using the cell's energy supplies and so it is called passive transport. The carrier proteins bind to glucose, which causes them to change shape and translocate the glucose from outside of the cell membrane and into the cell.
(a) glucose is important because it is the primary source of energy for the cell.
(b) Glucose is 6 - carbon monomer of starch. It is a sugar.
(c) Glucose is broken down to pyruvate through the process of glycolysis.
<span>Cell membranes contain membrane proteins that allows all the interaction that occurs within the cell. It makes the cell membrane selectively permeable because of its characteristics as being fluid or its fluidity which means to say that they can move freely within the lipid bilayer. The membrane proteins can also be stored in the lipid bilayer together with the enzymes. It cannot be denied that membrane proteins have a lot of functions based on its type. They can be integral proteins, peripheral proteins and lipid bound proteins.
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Primary consumers<span> are usually herbivores, feeding on plants and fungus</span>
