Answer:
Brain ----- glucose and amino acids.
Heart ------- fatty acids and triglycerides.
Explanation:
The sources of energy utilized by the brain is glucose under well-fed whereas the sources of energy utilized by the heart under well-fed condition is fatty acids. During starvation, the source of energy used by the brain is amino acids from skeletal proteins when glucose is not available while on the other hand, during starvation, the heart utilized triglycerides as a source of energy in the absence of fatty acids.
Answer:
Protects and support cells
Explanation:
The extracellular matrix is a solution present within each cell and tissues which is composed of the extracellular material like the protein-collagen, polysaccharides and the water.
Each cell has this ECM in different proportion, topology and composition depending on the function and type of the cell. The ECM is constantly changing by the enzyme activities which depends on the stage of the cell is in. The Extracellular matrix is known to play a role in the protection and support the structure of the cell.
Thus, Protects and support cells is correct.
