Answer: Starch and cellulose are both polysaccharides, and most animals can break down starch for energy but not cellulose.
Explanation: The reason cellulose is hard to metabolize by most animals for energy is due to the beta acetal linkages of its glucose monomers. This makes these linkages inaccessible to many energy enzymes that hydrolyze glycosidic. These enzymes break down alpha linkages such as those in starch.
Answer:
Transcellular.
Explanation:
The transportation of solutes and water occurs in the proximal convoluted tubule. The transport of solute occurs mainly via the two routes of transport known as paracellular transport and transcellular transport.
Transcellular transport may be defined as the transport by the cell through the cell. This process requires the energy for the transportation of molecules across the cells. The solutes are transported through the cell and most common route of transfer present in the proximal convoluted tubule.
Thus, the correct answer is option (a).
A. They eat dead or living organisms
