Label the Following Diagram : - Biology

Advertisements
Advertisements
Diagram

Label the following diagram :

Advertisements

Solution

(a) Veritcal section of human eye : 

  Is there an error in this question or solution?
Chapter 9: Nervous System - Exercise 2 [Page 116]

APPEARS IN

Frank ICSE Class 10 Biology
Chapter 9 Nervous System
Exercise 2 | Q 5.01 | Page 116

RELATED QUESTIONS

Define the term: Power of accommodation of the eye.


Compare the following: Choroid and retina


Draw labelled diagrams of the following: Eye


Write short notes on the following: Retina 


Answer briefly:

How do you perceive the colour of an object?


How does the eye regulate the amount of light that falls on the retina?


How does the eye regulate the amount of light that falls on the retina?


Differentiate between: Rods and cones


The region of the vertebrate eye, where the optic nerve passes out of the retina, is called the

(a) fovea

(b) iris

(c) blind spot

(d) optic chaisma


Distinguish between: aqueous humor and vitreous humor


Which. of the following has normal vision?

(a) Xc Xc
(b) Xc Y
(c) XC Xc
(d) Xc Yc


Fill in the blanks in the following.

The size of the pupil becomes ________ when you see in dim light.


Fill in the blanks in the following.

Night birds have _________ cones than rods in their eyes.

 


Draw a labelled sketch of the human eye.


Describe the anatomy of the human eye.


Explain the mechanism of vision.


Draw a neat and labelled diagram of the structure of the human eye


Match the following:

Column I Column II
(i) Myopia (a) Converging power of eye lens becomes low
(ii) Hypermetropia (b) Converging power of eye lens remains the same
  (c) Converging power of eye lens becomes high

A person got his eyes tested by an optician. The prescription for the spectacle lenses to be made reads :
Left eye : +2.50 D
Right eye : +2.00 D 

State whether these spectacle lenses will converge light rays or diverge light rays.


What is the principal function of the eye-lens? 


Give the scientific names of the following parts of the eye:

muscles which change the shape of the eye-lens.  


Fill in the following blank with suitable word: 

 To bring light from a near object to a focus on the retina of the eye, the convex eye-lens need­ to be made....................


Describe the working of the human eye with the help of the above diagram. 


After testing the eyes of a child, the optician has prescribed the following lenses for his spectacles:
Left eye : + 2.00 D
Right eye : + 2.25 D
The child is suffering from the defect of vision called:
(a) short-sightedness
(b) long-sightedness
(c) cataract
(d) presbyopia


The animal which does not have eyes that look sideways is:
(a) Horse
(b) Chicken
(c) Lion
(d) Fish


Note the relationship between the first two words and suggest the suitable word for the fourth place.

Cones : Iodopsim :: Rods : ……………….


Differentiate between members of the following pair with reference to what is asked in bracket.

Rod and cone cells (pigment contained)


Mention if the following statement is true (T) or false (F) Give reason.
Sometimes medicines dropped into the eyes come into the nose and even throat


With reference to the functioning of the eye, answer the question that follow:

What is the shape of the lens during near vision?


With reference to the functioning of the eye, answer the question that follow:

What is the shape of the lens during distant vision?


State the function of each of the following parts of the human eye:

(i) Cornea

(ii) Iris

(iii) Pupil

(iv) Retina

Millions of people of the developing countries are suffering from corneal blindness. This disease can be cured by replacing the defective cornea with the cornea of a donated eye. Your school has organised a campaign in the school and its neighbourhood in order to create awareness about this fact and motivate people to donate their eyes after death. How can you along with your classmates contribute in this noble cause? State the objectives of organising such campaigns in schools.


Give scientific reason:
One can sense colours only in bright light.


Give scientific reason:

We cannot clearly see an object kept at a distance less than 25 cm from the eye.


What is the function of iris and the muscles connected to the lens in human eye?


Name the following:
White part of the eye.


Define the following:
Power of accommodation


Name the following:
The opening through which light enters the eyes.


Choose the correct answer.
Which one is the photoreceptor _____________


Choose the correct answer.
Aperture controlling passage to light into the eye is ___________


Choose the correct answer : 
The rods and cones of a vertebrate retina function is to _________


Sketch and label V.S. of a human eye.


Answer the following question.
Write the structure of eye lens and state the role of ciliary muscles in the human eye.


Name the following:
The most sensitive region of the retina.


Name the following:
The region in the eye where the rods and cones are located.


Name the following:
Fluid present in the posterior chamber of the eye.


Name the following:
The type of lens used for correcting myopia.


Give Technical Term:
The cells of the retina that are sensitive to colour.


 Choose the Odd One Out: 


 Choose the Odd One Out: 


 Choose the Odd One Out: 


Long answer question

Draw the neat labelled diagram of the Sectional view of the human eye.


For the normal human eye, the near point is at ___________ cm.


Draw a scientifically correct labelled diagram of a human eye and answer the questions based on it:

  1. Name the type of lens in the human eye.
  2. Name the screen at which the maximum amount of incident light is refracted?
  3. State the nature of the image formed of the object on the screen inside the eye.

A small hole of changing diameter at the centre of Iris is called _______.


In a relaxed state, the focal length of healthy eyes is _______.


Write the name.

The part of human eye that transmits electrical signals to the brain.


Write the name.

The ability of lens to adjust the focal length as per need is


Write the name.

The fleshy screen behind cornea.


The image of the object in the human eye is formed on the cross screen.


The image of an object at an infinite distance is obtained in a real and erect form through a convex magnifying glass.


Vision defect that increases distance between the lens of the eye and retina of the eye is termed as myopia.


Write an Explanation.

Minimum distance of distinct vision


Write an Explanation.

Farthest distance of distinct vision


Write scientific reason.

The movie cannot be enjoyed if seat of a viewer is too close to the screen in the cinema.


The following figure show the change in the shape of the lens while seeing distant and nearby objects. Complete the figures by correctly labelling the diagram.


The following figure show the change in the shape of the lens while seeing distant and nearby objects. Complete the figures by correctly labelling the diagram.


Complete the paragraph by choosing the right options given below.

(minimum, near point, 25 cm, farthest, farthest distance, far point)

The _______ distance of an object from a normal eye, at which it is clearly visible without stress on the eye, is called the minimum distance of distinct vision. The position of the object at this distance is called the _______ of the eye, for a normal human eye, the near point is at _______. The _______ distance of an object from a human eye, at which it is clearly visible without stress on the eye is called _______ of distinct vision. The position of the object at this distance is called the _______ of the eye.


______ is the structural and functional unit of living organisms.


The larynx has fold of tissue which vibrate with the passage of air to produce sound.


Draw the struture of human eye and label its parts.


In a myopic eye, the image of the object is formed


Given below is a diagram depicting a defect of the human eye. Answer the questions that follow:

  1. Give the scientific term for the defect.
  2. Mention one possible reason for the defect.
  3. What type of lens can be used to correct the defect?

A tiny mirror M is fixed on a piece of cardboard placed on a table. The cardboard is illuminated by light from a bulb. The position of eye with respect to position of bulb is shown in the figure as A, B, C and D. In which position mirror will be visible?

(A) (B)  (C) (D)

Which of the following statements is correct regarding rods and cones in the human eye?


In the figure of the human eye, the cornea is represented by the letter


Name the part of the eye which gives colour to the eyes.


What kind of lens is there in our eyes? Where does it form the image of an object?


Which part of the eye gets affected if someone is suffering from cataract? How is it treated?


Write down the names of parts of the eye in the blank spaces shown in the figure.


______ of the eye is comparable to the film of a camera.


The coloured portion of the eye is the ______.


The transparent membrane that keeps the eye moist is ______.


Match the following

1. Conjunctiva a. Coloured part of eye
2. Cornea b. Photosensitive layer
3. Iris c. Refraction
4. Retina d. Protection

What is ‘white of the eye’?


Describe the parts in the external structure of the eye.


Which one of the following statements is NOT correct? 


Select the option with incorrect identification:


Which cells of the retina enable us to see coloured objects around us?


The innermost layer of human eye is ______.


Match the following:

Column - I Column - II
1. Retina a) Path way of light
2. Pupil b) Far point comes closer
3. Ciliary muscles c) near point moves away
4. Myopia d) Screen of the eye
5. Hypermetropia e) Power of accommodation

Match the following:

Column - I Column - II
1. Retina a. Path way of light
2. Pupil b. Far point comes closer
3. Ciliary muscles c. near point moves away
4. Myopia d. Screen of the eye
5. Hypermetropia e. Power of accommodation

Match the following:

Column - I Column - II
1

Retina 

a Pathway of light
2 Pupil b

Far point comes closer

3 Ciliary muscles c

near point moves away

4 Myopia d Screen of the eye
5 Hypermetropia f Power of accommodation

With reference to human eye, answer the following question.

What is aqueous humor?


With reference to human eye, answer the following question.

What is blind spot?


With neat, labeled diagram describe the structure of retina of eye.


Match the following:

Column - I Column - II
1. Retina a. Pathway of light
2. Pupil b. Far point comes closer
3. Ciliary muscles c. near point moves away
4. Myopia d. Screen of the eye
5. Hypermetropia f. Power of accommodation

Match the following:

  Column - I   Column - II
1 Retina a  pathway of light
2 Pupil b

far point comes closer

3 Ciliary muscles c

near point moves away

4 Myopia d screen of the eye
5 Hypermetropia e power of accommodation

Column I Column II
1 Retina a Path way of light
2 Pupil b Far point comes closer
3 Ciliary muscles c near point moves away
4 Myopia d Screen of the eye
5 Hypermetropia e Power of accomodation

Match the following:

Column - I Column - II
1. Retina a. Path way of light
2. Pupil b. Far point comes closer
3. Ciliary muscles c. near point moves away
4. Myopia d. Screen of the eye
5. Hypermetropia e. Power of accommodation

Match the following:

Column - I Column - II
1. Retina a. Path way of light
2. Pupil b. Far point comes closer
3. Ciliary muscles c. near point moves away
4. Myopia d. Screen of the eye
5. Hypermetropia e. Power of accommodation

Share
Notifications



      Forgot password?
Use app×