The branching point on a cladogram represents a common ancestor. A cladogram is a diagram used in cladistics to show relations among organisms. However it is not an evolutionary tree since it does not show how ancestors are related to descendants, nor does it show how much they have changed.
Answer:
All cells are surrounded by a cell membrane. The cell membrane is semipermeable, allowing some substances to pass into the cell and blocking others.
Explanation:
Although most absorbed glucose is used to make energy, some glucose is converted to ribose and deoxyribose, which are essential building blocks of important macromolecules, such as RNA, DNA, and ATP.
Carrier and channel proteins in the plasma membrane
are similar because they are both transport membrane proteins that allow
molecules to flow in and out of the membrane. Meanwhile, carrier protein can
further be classify as active or passive transport. These two transport
proteins makes cell’s ability to perform their functions well by maintaining a
difference between the intracellular and extracellular environment.
