Which of the following shows an unsaturated fatty acid?

C

Explanation:

Unsaturated fats that chains in their polymer chains as shown in the diagram in C. These kinks reduced the levels of compaction between adjacent polymer chains because they disrupt the hydrogen bonds between the chains . Therefore, the oils will not be solid at room temperature. This is why they are called unsaturated fats.  

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.