Sense Organs (Class XI/XII) Online Test

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Sense Organs (Class XI/XII)

Description: Mutation Class XI / XII
Number of Questions: 15
Created by: Muni Gupte
Tags: Mutation Class XI / XII

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What is the mucosa lining of olfactory region called?

Jacobson's organ
Schneiderian membrane
Sclera
Membranous labyrinth

What kind of receptors are olfactory receptors?

Photoreceptors
Mechanoreceptors
Thermoreceptors
Chemoreceptors

The junction which marks the transition from the simple non-photosensitive area of the retina to the complex, multi-layered photosensitive region is called

fovea
macula
orra serrata
bulbar sheath

Which layer maintains the shape of eyeball?

Choroid
Sclera
Retina
Conjunctiva

Which layer provides the surface for attachment of eye muscles?

Choroid
Sclerotic
Conjunctiva
Retina

Which muscle dilates pupil?

Circular muscle
Radial muscle
Inferior rectus muscle
Superior oblique muscle

What does blind spot contain?

Only rods
Only cones
Both rods and cones
Neither rods nor cones

Which pigment in cones allows them to respond to green light?

Erythrolabe
Cyanolabe
Chlorolabe
Rhodopsin

What are ciliary muscles responsible for?

Persistence of vision
Accommodation of lens
Dilation of pupil
Constriction of pupil

What does yellow spot contain?

Only cones
Only rods
Both rods and cones
Neither rods nor cones

From which point do optic nerve fibers leave retina?

Yellow spot
Blind spot
Pars optica
Ora serrata

Where is aqueous chamber present?

Between lens and retina
Between lens and cornea
On the surface of conjunctiva
Behind the retina

What is the function of Jacobson's organ in humans?

It contains sensory cells for hearing.
It smells the food and keeps it in knowledge.
It is a vestigial organ.
It is an exocrine gland.

What happens during bleaching in eye?

Lodopsin is converted to scotopsin and retinol.
Rhodopsin is converted to scotopsin and retinol.
Scotopsin and retinol combine to re-synthesise rhodopsin.
Eyes loses power of vision.

Which gland produces secretions to keep the eyes moist?

Meibomian gland
Lacrimal gland
Ceruminous gland
Pituitary gland

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Sense Organs (Class XI/XII)

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