AP BIOLOGY

THE CELL

CELL COMMUNICATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Transmission of information from sensory neurons to interneurons involves the
A
flow of protons down an electrochemical gradient
B
transfer of a phosphate group from ATP to the receptor on the postsynaptic cell membrane
C
release of chemical messengers into the space between the axon of the sensory neuron and the plasma membrane of the sensory neuron
D
exchange of electrons between the plasma membrane of the sensory neuron and the membrane of the interneuron
Explanation: 

Detailed explanation-1: -Sensory cells carry afferent impulses to a central interneuron, which makes contact with a motor neuron. The motor neuron carries efferent impulses to the effector, which produces the response.

Detailed explanation-2: -What are neurotransmitters? Neurotransmitters are chemical messengers that your body can’t function without. Their job is to carry chemical signals (“messages”) from one neuron (nerve cell) to the next target cell. The next target cell can be another nerve cell, a muscle cell or a gland.

Detailed explanation-3: -Neurons communicate with each other via electrical events called ‘action potentials’ and chemical neurotransmitters. At the junction between two neurons (synapse), an action potential causes neuron A to release a chemical neurotransmitter.

Detailed explanation-4: -So, the correct answer is ‘Receptors-Sensory neuron-Spinal cord-Motor neuron-Muscle’

There is 1 question to complete.