Choose the Odd One Out: Corpus Luteum, Corpus Callosun, Pens, Cerebellum. - Biology

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MCQ

 Choose the Odd One Out: 

Options

  • Corpus luteum

  • corpus callosum

  • pens

  • cerebellum

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Solution

Corpus luteum

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Chapter 8: The Nervous System and Sense Organs - Choose the Odd One Out

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ICSE Class 10 Biology
Chapter 8 The Nervous System and Sense Organs
Choose the Odd One Out | Q 4

RELATED QUESTIONS

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?


Explain the following:

Mechanism of generation of light-induced impulse in 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


Distinguish between: blind spot and yellow spot


Which. of the following has normal vision?

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


Myopia is an example of ______.


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.


Explain, why a normal eye is not able to see distinctly the objects placed closer than 25 cm, without putting any strain on the eye.


Describe the anatomy of the human eye.


Explain the mechanism of vision.


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

Out of rods and cones m the retina of your eye: 

which work in dim light? 


What is the range of vision of a normal human eye? 


Fill in the following blank with suitable words: 

When light is dim, the pupil becomes................   


 How does this affect the amount of light entering the eye?


 How does the eye adjust itself to deal with light of varying intensity? 


 Explain why, we cannot see our seats first when we enter a darkened cinema hall from bright light but gradually they become visible.


 Which parts of the eye cause rays of light to converge on the retina?


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


Mention if the following statement is true (T) or false (F) Give reason.

Short-sightedness and hyperopia are one and the same thing


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

What is the shape of the lens during distant vision?


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

Name the cells of the retina and its respective pigments which get activated in the light.


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?


 Correct and rewrite the statements by changing the biological term that is underlined for the statement: 
The part of the eye which can be donated from a clinically dead person is the Retina. 


State the main functions of the following:
Seminal Vesicles  


Draw a labelled diagram of the front view the human eye.

Give the main function of the following:
Fovea centralis    


Write whether the following is true or false:
Rods are the receptor cells in the retina of the eye sensitive to dimlight.


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


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


What is meant by power of accommodation of the eye?


Differentiate between:

Retina and Choroid.


Name the following:
 The innermost layer of the eye


Give Technical Term:
The fluid which conveys the vibrations of sound in the cochlea and semicircular canals.


Mention, if the following statement is True or False
The least distance of distinct vision for the human eye is 25 cm


State the Function:
Iris


State the Function:
Vitreous humour


 Choose the Odd One Out: 


 Choose the Odd One Out: 


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 _______.


For a normal human eye the near point is at _______.


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.


For a healthy human eye, the distant point is infinite distance.


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


Write an Explanation.

Farthest distance of distinct vision


Write an Explanation.

Power of accommodation


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.


Write the function of the human eye and label parts of the figure given below.


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.


Shylesh is a school-going kid studying standard VIII. He is crazy about playing video games on mobile phones. After a couple of months, his eyes turned red and he felt severe pain in his eyes. His science teacher enquired about this and advised his parents to take him to an eye doctor.

  1. How does excessive usage of mobile phone affect our eyes?
  2. What are the values shown by the teacher?

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


A prism ABC (with BC as base) is placed in different orientations. A narrow beam of white light is incident on the prism as shown in Figure . In which of the following cases, after dispersion, the third colour from the top corresponds to the colour of the sky?

(i) (ii) (iii) (iv)

Explain the structure and functioning of Human eye. How are we able to see nearby as well as distant objects?


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)

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.


Boojho while waving his hand very fast in front of his eyes, observes that his fingers appear blurred. What could be the reason for it?


Eyes of the nocturnal birds have large cornea and a large pupil. How does this structure help them?


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?


______ is a transparent layer.


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


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

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

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