The conformational change of retinal, from the cis to trans configuration, indirectly: O Hyperpolarizes the photoreceptor by closing Na+ channels. Hyperpolarizes the photoreceptor by opening Na+ channels. Depolarizes the photoreceptor by opening Na+ channels. Depolarizes the photoreceptor by closing Na+ channels.

Q: Which is the LAST part of the retina that a photon passes through before it is captured by an opsin…

A: The retina is a layer of tissue in back of the eye which senses light and sends images to brain.

Q: Describe the photochemical reaction in the rods and explain how dark adaptation occurs.

A: The eye is one of the most complex paired sensory organs of the visual organ system. It helps in the…

Q: Describe the functions of the four photoreceptorproteins in human vision.

A: Photoreceptor proteins are the light sensitive proteins which are involved in the process of sensing…

Q: Match the structure with its fu [ Choose ] regulates the amount of light entering the eye gives…

A: The eyes are the organ of the body that helps in visualizing things. It functions in receiving the…

Q: Describe how the differences in the size of the receptive fields within the fovea and peripheral…

A: Hermann grid illusion is an optical illusion grid created by Ludimar Hermann. It is a tool for…

Q: Taste receptors in the toungue are ipsilateral to the side of the gustatory cortex on which their…

A: Taste receptors in the toungue are ipsilateral to the side of the gustatory cortex on which their…

Q: Briefly describe and explain how two cardiovascular diseases can be caused by atrial fibrillation.

A: Irregular puls of heart is one of the serious  causes of cardiovascular disease. Many cardiovescular…

Q: Quetsion 3. The tube used for CBC has a mark for 2 ml. The phlebotomist add 4 ml of blood to the…

A: Complete blood count (CBC) tubes are used for determining increase,d decrease, or any other…

Q: Defintion of Vision's Chemistry?

A: -Light is absorbed by a pigment in a photoreceptor cell (by a dye in the eye), and the resulting…

Q: Describe the effects of light on the photoreceptors and explain how these effects influence the…

A: Cells that are present in the retina region of the eye that are responsive towards light are called…

Q: Which of the following is the best explanation of why it is difficult to discriminate the color of…

A: Human has five special senses namely sight, sound, smell, taste, and touch. The eye is defined as…

Q: True or false: Hair cells in the spiral organ will depolarize or hyperpolarize, depending on the…

A: The hair cells present in the spiral organs serve as the sensory receptor in both the auditory as…

Q: Describe the events that convert light into a neural signal.

A: The transmission of light signals from the eye to the brain's visual centers follows a sequential…

Q: Describe trichromatic theory and opponent-process theory of color vision, including the observations…

A: Note:- Sorry, as per our company's honor code we cannot provide external references. Thank you!Color…

Q: As we progress from bipolar cells to ganglion cells to later cells in the visual system, are…

A: Introduction The visual system is made up of sensory organs and some parts of the central nervous…

Q: Bipolar cell responses: changes in polarization Ganglion cell responses: action potentials Light…

A: The eye is a type of sensory organ that aids vision. The eye is a spherical organ filled with a…

Q: Based on the attached figure (Figure 9.8 in the textbook), what is the actual membrane mechanism…

A: The objective of the question is to identify the membrane mechanism that mediates the light-induced…

Q: Taste cells form chemical synapses with afferent neurites that make up the gustatory cranial nerve.…

A: Introduction  A neuron will secrete a neurotransmitter to communicate with another cell across a…

Q: 3. Based on the phototransduction A. It is a voltage-dependent B. It is a G protein-coupled C. It is…

A: The outer segment of the rod that projects into the pigment layer of the retina has a concentration…

Q: Which nerves carry taste signals, what routes they take to the brain, and what brain centers receive…

A: Taste is one of the special sense that detects the chemicals.

Q: Briefly describe how lateral inhibition increases apparent contrast at edges. In your response be…

A: Lateral contrast is mainly shown in the sensory system of the body including the olfactory organ,…

Q: he correct pathway of activation (by sending neuronal Sigi O hinolar cell - retinal ganglion cell…

A: Ans: bipolar cell -photoreceptor-amacrine cell

Q: Which of the following cells do not fire action potentials? Select all that apply. Spiral ganglion…

A: An abrupt series of voltage variations across a membrane is called an action potential. The degree…

Q: List at least two ways the retina has adapted to minimize the potential problem caused by the…

A: The Retina is derived from the neural tube and is part of central nervous system. It contain two…

Q: Name the photosensitive pigment present in the rod cells of the retina.

A: Human eye consists of rod and cone cells which are associated with the coloured and dim light…

Q: Why is it difficult to see colors in dim light?

A: The back portion of the eye that responds to light is called the retina. This is carried out with…

Q: Define how carbaminohemoglobin (HbCO2) is formed ?

A: Haemoglobin (Hb) is a quaternary protein found in the red blood cells (RBCs) that carries oxygen and…

Q: Describe the process of retinal transduction. How are visual cues perceived at the cellular level?

A: Retina refers to the tissue layer present at the back of the inside of the eye. It contains rod…

Q: When you are stalking your friend's social media via a smartphone. a. In your opinion, which…

A: In the above situation, Visual senses are used to process the information visible on the screen and…

Q: Describe the pathway of light from the point where it enters the eye to the point in which the light…

A: The visual pathway refers to the anatomical structures responsible for the conversion of light…

Q: Trace the path of a photon of light through all the layers of theretina discussed in this chapter.…

A: Light passes through the front of the eye (cornea) to the lens. The cornea and the lens help to…

Q: a. Rods b. Cones c. Rods and cones d. Photoreceptors Cells in the eye that are affected by colour…

A: Sensory organs are involved in sensing the different senses. The visual signals are perceived by the…

Q: : Retinal implants mainly generate the 3) Color vision with retinal implants sensation of white…

A: Retinal implants can aid in vision. Retinal implant devices provide electrical stimulation to these…

Q: Detail the separate mechanisms activated in photoreceptor cells in the presence and in the absence…

A: Photoreceptors are specialized neuroepithelial cells that are found in the retina. They are involved…

Q: Explain in detail each and every"Rhodopsin-retinal visual cycle in Rods".   (Note: Sir please make…

A: Eyes are complex sense organs. they gather information from the environmental stimulus, and the…

Q: What statement is true regarding the retinal pigment epithelium? Cells in the PE are the site of…

A: The eyeball consists of three layers.

Q: The suprachiasmatic nucleus receives direct input from the retina and enables light dark circles to…

A: The retinal ganglion cell (RGC) is a type of neuron that is located near the inner surface (the…

Q: What effect does sympathetic nervous system stimulation have on pupil diameter? It is known that…

A: The nervous system controls and coordinates all the activities in the body. It is majorly classified…

Q: What are the receptor cells in the eye that are most sensitive to light and that give an image in…

A: Eyes are the delicate round organs that are specialized for sensing the signals of vision. These are…