Photoreceptors (Rods and cones) of eye are present in (a) Sclera (b) Cornea (c) Retina (d) Pupil

Photoreceptors (Rods and cones) of eye are present in
(a) Sclera
(b) Cornea
(c) Retina
(d) Pupil
by

1 Answer

Answer :

(c) Retina
by

Related questions

Parts A, B, C and D of the human eye are shown in the diagram. Select the option which gives correct identification along with its functions characteristics. (a) C-Aqueous chamber-Reflects the light which does not pass through the lens. (b) D - Choroid - Its anterior part forms ciliary body. (c) A - Retina - Contains photoreceptors, i.e., rods and cones. (d) B - Blind spot-Has only a few rods and cones.

Description : Parts A, B, C and D of the human eye are shown in the diagram. Select the option which gives correct identification along with its functions characteristics. (a) C-Aqueous chamber-Reflects the light which does not ... , i.e., rods and cones. (d) B - Blind spot-Has only a few rods and cones.

Last Answer : (c) A - Retina - Contains photoreceptors, i.e., rods and cones.

The light sensitive cells that respond to dim light are ________. a)cones b)rods c)cornea d)retina

Description : The light sensitive cells that respond to dim light are ________. a)cones b)rods c)cornea d)retina

Last Answer : b)rods

The colour of the eye depends upon the pigment present in - (1) cornea (2) iris (3) rods (4) cones

Description : The colour of the eye depends upon the pigment present in - (1) cornea (2) iris (3) rods (4) cones

Last Answer : (2) iris Explanation: Eye colour is a polygenic phenotypic character determined by 2 distinct factors: the pigmentation of the eye's iris and the frequency-dependence of the scattering of light by the ... iris stroma (located at the front of the iris), and the cellular density of the stroma.

The colour of the eye depends upon the pigment present in (1) cornea (2) iris (3) rods (4) cones

Description : The colour of the eye depends upon the pigment present in (1) cornea (2) iris (3) rods (4) cones

Last Answer : iris

Which one of the following statements is not correct? (a) Retinal is the light absorbing portion of visual photopigments. (b) In retina the rods have the photopigment rhodopsin while cones have three different photopigments. (c) Retinal is a derivative of vitamin C. (d) Rhodopsin is the purplish red protein present in rods only.

Description : Which one of the following statements is not correct? (a) Retinal is the light absorbing portion of visual photopigments. (b) In retina the rods have the photopigment rhodopsin while cones have three ... a derivative of vitamin C. (d) Rhodopsin is the purplish red protein present in rods only.

Last Answer : (c) Retinal is a derivative of vitamin C.

Outer most layer of retina which holds sensory neuron like rods & cones is

Description : Outer most layer of retina which holds sensory neuron like rods & cones is

Last Answer : Outer most layer of retina which holds sensory neuron like rods & cones is

Outer most layer of retina which holds sensory neuron like rods & cones is

Description : Outer most layer of retina which holds sensory neuron like rods & cones is

Last Answer : Outer most layer of retina which holds sensory neuron like rods & cones is

True statement about dark adaptation include: a. there is a shift in peak spectral sensitivity from 555 nm to 505 nm with dark adaptation b. rods are more sensitive than cone during dark adaptation c. biphasic changes only occur in retina which processes both rods and cones d. all above

Description : True statement about dark adaptation include: a. there is a shift in peak spectral sensitivity from 555 nm to 505 nm with dark adaptation b. rods are more sensitive than cone during dark adaptation c. biphasic changes only occur in retina which processes both rods and cones d. all above

Last Answer : all above

Select the answer with correct matching of the structure, its location and function. Structure Location Function (a) Eustachian Anterior Equalizes air tube part of pressure on internal ear either sides of tympanic membrane (b) Cerebellum Midbrain Controls respiration and gastric secretions (c) Hypothal Forebrain Controls body -amus temperature, urge for eating and drinking (d) Blind spot Near the place Rods and cones where optic are present but nerve leaves inactive here the eye

Description : Select the answer with correct matching of the structure, its location and function. Structure Location Function (a) Eustachian Anterior Equalizes air tube part of pressure on internal ear either sides ... the place Rods and cones where optic are present but nerve leaves inactive here the eye

Last Answer : (c) Hypothal Forebrain Controls body -amus temperature, urge for eating and drinking

In mammalian eye, the ‘fovea’ is the center of the visual field, where (a) only rods are present (b) more rods than cones are found (c) high density of cones occur, but has no rods (d) the optic nerve leaves the eye.

Description : In mammalian eye, the ‘fovea’ is the center of the visual field, where (a) only rods are present (b) more rods than cones are found (c) high density of cones occur, but has no rods (d) the optic nerve leaves the eye.

Last Answer : (c) high density of cones occur, but has no rods

In the eye, colour vision is effected by the presence of - (1) Choroid coat (2) Sclerotic coat (3) Rods (4) Cones

Description : In the eye, colour vision is effected by the presence of - (1) Choroid coat (2) Sclerotic coat (3) Rods (4) Cones

Last Answer : (4) Cones Explanation: Cone cells, or cones, are photoreceptor cells in the retina of the eye that are responsible for color vision, they function best in relatively bright light, as opposed to ... , but quickly reduce in number towards the periphery of the retina. It allow the perception of colour

In the eye, colour vision is effected by the presence of : (1) Choroid coat (2) Sclerotic coat (3) Rods (4) Cones

Description : In the eye, colour vision is effected by the presence of : (1) Choroid coat (2) Sclerotic coat (3) Rods (4) Cones

Last Answer : Cones

Koeppe’s nodules are found in: a. Cornea b. Sclera c. Iris d. Conjunctiva

Description : Koeppe’s nodules are found in: a. Cornea b. Sclera c. Iris d. Conjunctiva

Last Answer : ANSWER: C 

Light rays entering the eye is controlled by (a) pupil (b) iris (c) cornea (d) lens.

Description : Light rays entering the eye is controlled by (a) pupil (b) iris (c) cornea (d) lens.

Last Answer : (a) pupil

Most benign cause of postmenopausal bleeding Cervical polyp Atrophic vaginitis 112-Pt came by hx os sudden eye pain burning vision photophobia and by ex. Small pupil and keretic cell on cornea and cell in humorus Ttt Cyclospoine + corticosteroid

Description : Most benign cause of postmenopausal bleeding Cervical polyp Atrophic vaginitis 112-Pt came by hx os sudden eye pain burning vision photophobia and by ex. Small pupil and keretic cell on cornea and cell in humorus Ttt Cyclospoine + corticosteroid

Last Answer : Cyclospoine + corticosteroid

The _______ the amount of light entering the eye. a)iris b)pupil c)cornea d)lens

Description : The _______ the amount of light entering the eye. a)iris b)pupil c)cornea d)lens

Last Answer : a)iris

In eye donation, which one of the parts of donor’s eye is utilized? A. Lens B. Retina C. Cornea D. Iris

Description : In eye donation, which one of the parts of donor’s eye is utilized? A. Lens B. Retina C. Cornea D. Iris

Last Answer : ANSWER: C

In eye donation, which one of the parts of donor’s eye is utilized? A. Lens B. Retina C. Cornea D. Iris

Description : In eye donation, which one of the parts of donor’s eye is utilized? A. Lens B. Retina C. Cornea D. Iris

Last Answer : ANSWER: C

In eye donation, which one of the parts of donor’s eye is utilized? A. Lens B. Retina C. Cornea D. Iris

Description : In eye donation, which one of the parts of donor’s eye is utilized? A. Lens B. Retina C. Cornea D. Iris

Last Answer : ANSWER: C

In eye donation, which one of the following parts of donor's eye is utilized? (1) Iris (2) Lens (3) Cornea (4) Retina

Description : In eye donation, which one of the following parts of donor's eye is utilized? (1) Iris (2) Lens (3) Cornea (4) Retina

Last Answer : (3) Cornea Explanation: Generally blindness is caused by the dryness and hardness of cornea. Cornea is a clear layer which helps passing of light. It is an outer layer and can be transfer from one person to another.

In Eye donation, which part of the eye used? A. Retina B. Iris C. Cornea (Answer) D. Optic nerve

Description : In Eye donation, which part of the eye used? A. Retina B. Iris C. Cornea (Answer) D. Optic nerve

Last Answer : C. Cornea (Answer)

In which part of the eye lies the pigment that decides the colour of the eyes of a person--? A. Retina B. Iris (Answer) C. Cornea D. Pupal

Description : In which part of the eye lies the pigment that decides the colour of the eyes of a person--? A. Retina B. Iris (Answer) C. Cornea D. Pupal

Last Answer : B. Iris (Answer)

In eye donation, which one of the following parts of donor’s eye is utilized ? A. Iris B. Lens C. Cornea (Answer) D. Retina

Description : In eye donation, which one of the following parts of donor’s eye is utilized ? A. Iris B. Lens C. Cornea (Answer) D. Retina

Last Answer : C. Cornea (Answer)

Sensitive layer of the eye is? A. Choriods B. Sclerotic C. Retina (Answer) D. Cornea E. None of these

Description : Sensitive layer of the eye is? A. Choriods B. Sclerotic C. Retina (Answer) D. Cornea E. None of these

Last Answer : C. Retina (Answer)

Sensitive pigmented layer of eye is (a) cornea (b) retina (c) sclerotic (d) iris.

Description : Sensitive pigmented layer of eye is (a) cornea (b) retina (c) sclerotic (d) iris.

Last Answer : (b) retina

The following structures are of ectodermal origin: a. the retina and its retinal pigment epithelium b. iris stroma c. the sclera d. the ciliary muscle e. the corneal stroma

Description : The following structures are of ectodermal origin: a. the retina and its retinal pigment epithelium b. iris stroma c. the sclera d. the ciliary muscle e. the corneal stroma

Last Answer : the retina and its retinal pigment epithelium

When a person enters a dark room from bright light he is not able to see clearly for little while because ______ A. Eye is unable to adjust itself immediately B. Retina becomes insensitive momentarily C. Iris is unable to dilate the pupil immediately D. Distance between the lens and retina take time to adjust

Description : When a person enters a dark room from bright light he is not able to see clearly for little while because ______ A. Eye is unable to adjust itself immediately B. Retina becomes insensitive ... is unable to dilate the pupil immediately D. Distance between the lens and retina take time to adjust

Last Answer : ANSWER: C

When a person enters a dark room from bright light, he is not able to see clearly for a little while because the (a) eye is unable to adjust itself immediately (b) retina becomes insensitive momentarily (c) iris is unable to dilate the pupil immediately (d) distance between the lens and retina takes time to adjust

Description : When a person enters a dark room from bright light, he is not able to see clearly for a little while because the (a) eye is unable to adjust itself immediately (b) retina becomes insensitive ... is unable to dilate the pupil immediately (d) distance between the lens and retina takes time to adjust

Last Answer : Ans:(c)

When a person walking in bright sunlight enters a dark room, he is not able to see clearly for a little while because (a) The eye muscles cannot immediately change the focal length of the eye lens (b) The retina retains the bright images for some time and becomes momentarily insensitive (c) The iris is unable to contract the pupil immediately (d) The iris is unable to dilate the pupil immediately

Description : When a person walking in bright sunlight enters a dark room, he is not able to see clearly for a little while because (a) The eye muscles cannot immediately change the focal length of the eye ... iris is unable to contract the pupil immediately (d) The iris is unable to dilate the pupil immediately

Last Answer : Ans:(d)

When a person enters a dark room from bright light he is not able to see clearly for a little while because the? A. Eye is unable to adjust itself immediately B. Retina becomes insensitive momentarily C. Iris is unable to dilate the pupil immediately (Answer) D. Distance between the lens and retina take time to adjust

Description : When a person enters a dark room from bright light he is not able to see clearly for a little while because the? A. Eye is unable to adjust itself immediately B. Retina becomes insensitive ... to dilate the pupil immediately (Answer) D. Distance between the lens and retina take time to adjust

Last Answer : C. Iris is unable to dilate the pupil immediately (Answer)

When a person walking in bright Sunlight enters a dark room, he is not able to see clearly for a little while because (1) the eye muscles cannot immediately adjust the focal length of the eye lens. (2) the retina retains the bright images for sometime and becomes momentarily insensitive. (3) the iris is unable to contract the pupil immediately. (4) the iris is unable to dilate the pupil immediately.

Description : When a person walking in bright Sunlight enters a dark room, he is not able to see clearly for a little while because (1) the eye muscles cannot immediately adjust the focal length of the eye ... is unable to contract the pupil immediately. (4) the iris is unable to dilate the pupil immediately.

Last Answer : the iris is unable to dilate the pupil immediately.

Where is Rods and Cones present?

Description : Where is Rods and Cones present?

Last Answer : Retina

A person will have brown eyes, blue eyes or black eyes depending on the particular pigment present in the : (1) Pupil (2) Cornea (3) Iris (4) Choroid

Description : A person will have brown eyes, blue eyes or black eyes depending on the particular pigment present in the : (1) Pupil (2) Cornea (3) Iris (4) Choroid

Last Answer : (3) Iris Explanation: Eye color is a polygenic phenotypic character determined by 2 distinct factors: the pigmentation of the eye's iris and the frequency-dependence of the scattering of light by the turbid ... iris stroma (located at the front of the iris), and the cellular density of the stroma.

A person will have brown eyes, blue eyes or black eyes depending on the particular pigment present in the : (1) Pupil (2) Cornea (3) Iris (4) Choroid

Description : A person will have brown eyes, blue eyes or black eyes depending on the particular pigment present in the : (1) Pupil (2) Cornea (3) Iris (4) Choroid

Last Answer : Iris

Pigments present in cones of retina are connected with :

Description : Pigments present in cones of retina are connected with :

Last Answer : Pigments present in cones of retina are connected with : A. Night blindness B. Accommodation of eye C. Colour discrimination D. Image formation

The following are true: a. the ratio of rod to cone is about 20:1 b. there are more ganglion cells in the retina than photoreceptors c. the rod density is the highest nasal to the optic disc d. the retinal artery is the main supply of nutrients to the photoreceptors

Description : The following are true: a. the ratio of rod to cone is about 20:1 b. there are more ganglion cells in the retina than photoreceptors c. the rod density is the highest nasal to the optic disc d. the retinal artery is the main supply of nutrients to the photoreceptors

Last Answer : the ratio of rod to cone is about 20:1

Name two types of photoreceptors present in the eye:?

Description : Name two types of photoreceptors present in the eye:?

Last Answer : Rods and cones

What is the difference between Rods and Cones? -Biology

Description : What is the difference between Rods and Cones? -Biology

Last Answer : answer:

With regard to dark adaptation: a. is a quicker process than light adaptation b. the sensitivity of the cones increases more rapidly than the rods c. it is monophasic in rod monochromatism d. the first limb of the curve represents rod recovery

Description : With regard to dark adaptation: a. is a quicker process than light adaptation b. the sensitivity of the cones increases more rapidly than the rods c. it is monophasic in rod monochromatism d. the first limb of the curve represents rod recovery

Last Answer : it is monophasic in rod monochromatism

With regard to light perception: a. the fovea contains only cones b. the cones have a lower threshold to light than rods c. rods respond most to the red-yellow end of light d. rods respond most to wavelengths of about 500nm

Description : With regard to light perception: a. the fovea contains only cones b. the cones have a lower threshold to light than rods c. rods respond most to the red-yellow end of light d. rods respond most to wavelengths of about 500nm

Last Answer : rods respond most to wavelengths of about 500nm

Optic nerve axon emerges from: a. Ganglion cells b. Rods and cones c. Amacrine cells d. Inner nuclear layer

Description : Optic nerve axon emerges from: a. Ganglion cells b. Rods and cones c. Amacrine cells d. Inner nuclear layer 

Last Answer : ANSWER: A

Night blindness is caused by: a. Central retinal vein occlusion b. Dystrophies of retinal rods c. Dystrophies of the retinal cones d. Retinal detachment

Description : Night blindness is caused by: a. Central retinal vein occlusion b. Dystrophies of retinal rods c. Dystrophies of the retinal cones d. Retinal detachment

Last Answer : ANSWER: B

The following are true about dark adaptation: a. only regeneration of rhodopsin is responsibleb. adaptation usually takes about 20 minutes c. dilatation of pupil plays a part in dark adaptation d. it is better with the fovea than the peripheral retina

Description : The following are true about dark adaptation: a. only regeneration of rhodopsin is responsible b. adaptation usually takes about 20 minutes c. dilatation of pupil plays a part in dark adaptation d. it is better with the fovea than the peripheral retina

Last Answer : dilatation of pupil plays a part in dark adaptation

The junction of optic nerve and retina is insensitive to light and no image is formed here , it is known as ______. a)blind spot b)yellow spot c) fovea d)pupil

Description : The junction of optic nerve and retina is insensitive to light and no image is formed here , it is known as ______. a)blind spot b)yellow spot c) fovea d)pupil

Last Answer : a)blind spot

The following are true about the ERG: a. in infarction of the choroidal circulation the a-wave of the ERG is reduced or absent b. the ERG is always abnormal in patients with macular diseases c. flicker ERG can be used to isolate cone photoreceptors d. the b-wave of ERG is reduced in dark-adapted eye

Description : The following are true about the ERG: a. in infarction of the choroidal circulation the a-wave of the ERG is reduced or absent b. the ERG is always abnormal in patients with macular diseases c. ... can be used to isolate cone photoreceptors d. the b-wave of ERG is reduced in dark-adapted eye

Last Answer : the b-wave of ERG is reduced in dark-adapted eye

The following are true about critical fusion frequency: a. it refers to the rate at which stimuli can be presented and still be perceived as separate stimuli b. it is dependent on visual acuity c. it is dependent on the spacing between neighbouring photoreceptors d. it depends on the time-resolving ability of the eye

Description : The following are true about critical fusion frequency: a. it refers to the rate at which stimuli can be presented and still be perceived as separate stimuli b. it is dependent on visual ... on the spacing between neighbouring photoreceptors d. it depends on the time-resolving ability of the eye

Last Answer : it depends on the time-resolving ability of the eye

Choose the correct statement. (a) Nociceptors respond to changes in pressure. (b) Meissner’s corpuscles are thermoreceptors. (c) Photoreceptors in the human eye are depolarised during darkness and become hyperpolarised in response to the light stimulus. (d) Receptors do not produce graded potentials.

Description : Choose the correct statement. (a) Nociceptors respond to changes in pressure. (b) Meissner's corpuscles are thermoreceptors. (c) Photoreceptors in the human eye are depolarised during darkness and ... hyperpolarised in response to the light stimulus. (d) Receptors do not produce graded potentials.

Last Answer : (c) Photoreceptors in the human eye are depolarised during darkness and become hyperpolarised in response to the light stimulus.

What are the two types of photoreceptors in the vertebrate eye called?

Description : What are the two types of photoreceptors in the vertebrate eye called?

Last Answer : ANSWER: RODS and CONES

_________ is liquid present in the space between the cornea and lens of the eye. a)aqueous humor b)vitreous humor c)humor d)mucous

Description : _________ is liquid present in the space between the cornea and lens of the eye. a)aqueous humor b)vitreous humor c)humor d)mucous

Last Answer : a)aqueous humor

In the retina of eye cells what is present for colour differentiation?

Description : In the retina of eye cells what is present for colour differentiation?

Last Answer : Cones