Which of the following molecules would not be found in animal plasma membranes?
(a) proteins
(b) phospholipids
(c) glycolipids
(d) nucleic acids
(e) cholesterol

Option D. "Nucleic acids "

Explanation:

Animal plasma membranes plays an important role in the protection of the cell from external environment.

The major components of the animal plasma membrane involves a phospholipid bilayer, Cholesterol that is found alongside phospholipids in the inner membrane, Membrane proteins that are of two types integral and peripheral, and glycolipids which act as carbohydrate source in the plasma membrane.

Hence, Nucleic acids  are not present in animal plasma membrane.

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.

a symbiotic relationship with the mitochondria