The following steps occur in rods when they are excited by photons of light. What is the proper sequence for these steps? 1. Membrane sodium channels close. 2. Increased phosphodiesterase breaks down cGMP. 3. Retinal changes from the 11-cis form to the 11-trans form. 4. The membrane hyperpolarizes and the rate of neurotransmitter release declines. 5. Opsin activates transducin. 6. Opsin

activation occurs.
A) 1, 6, 5, 2, 4, 3
B) 3, 6, 5, 2, 1, 4
C) 6, 3, 5, 2, 1, 4
D) 3, 6, 5, 1, 2, 4
E) 1, 3, 4, 5, 6, 2


B

Anatomy & Physiology

You might also like to view...

Given that oxygen is consumed and carbon dioxide produced during exercise, and we know that the ventilatory system responds to these variables, why do exercise scientists believe that the increase in ventilation during exercise is NOT due to these chemoreceptor responses?

What will be an ideal response?

Anatomy & Physiology

The axillary region is ____ to the sternal region.

-distal -proximal -medial -lateral

Anatomy & Physiology

The coronary __________ receives blood that has circulated through the myocardium and transports it to the right atrium.

Fill in the blank(s) with the appropriate word(s).

Anatomy & Physiology

List 5 aquaculture production systems

What will be an ideal response?

Anatomy & Physiology