Audrey woke up and decided to go to the bakery for breakfast. when she walked through the door, the smell of blueberry muffins caused her to begin salivating. which of audrey's neurons detected the smell of the muffins?

Sensory neurons detected the smell of muffins.

Explanation:

Sensory neurons can be described as a group of neurons which convert stimulus from the external environment of the organism into an electrical impulse. Sensory neurons are also known as afferent neurons. there are different types of sensory neurons to detect different types of environmental stimuli. The sensory neurons which are used for smelling are termed as olfactory sensory neurons. Hence, the sensory neurons helped Audrey to detect the smell of muffins.

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.