NCERT Solution
Class 9
Science
The Fundamental Unit of Life
fill in the gaps in the following table illustrati...

Question:
Fill in the gaps in the following table illustrating differences between prokaryotic and eukaryotic cells.

Prokaryotic Cell Eukaryotic Cell

1. Size : generally small (1-10 μm)
1 μm = 10^-6 m 1. Size generally large (5-100 μm)

2. Nuclear region: ________
and known as _ 2. Nuclear region: well defined
andsurrounded by a nuclear
membrane

3. Chromosome: single
3. More than one chromosome

4. Membrane-bound cell organelles absent 4. _
_________

Answer:

Prokaryotic Cell Eukaryotic Cell

1. Size : generally small (1-10 μm)
1 μm = 10^-6 m 1. Size generally large (5-100 μm)

2. Nuclear region is poorly defined due to absence of nuclear membrane and known as nucleoid. 2. Nuclear region: well defined and surrounded by a nuclear membrane

3. Chromosome: single 3. More than one chromosome

4. Membrane-bound cell organelles absent 4. Membrane-bound cell organelles present

Prokaryotic Cell	Eukaryotic Cell
1. Size : generally small (1-10 μm) 1 μm = 10^-6 m	1. Size generally large (5-100 μm)
2. Nuclear region is poorly defined due to absence of nuclear membrane and known as nucleoid.	2. Nuclear region: well defined and surrounded by a nuclear membrane
3. Chromosome: single	3. More than one chromosome
4. Membrane-bound cell organelles absent	4. Membrane-bound cell organelles present

1
0
0
Report?

Report a problem on Specifications:

Email id:

Comments

< Previous Question

Next Question >

SELECT ex_no,question,question_no,id,chapter FROM question_mgmt as q WHERE courseId='8' AND subId='16' AND ex_no!=0 AND status=1 and id!=4033 ORDER BY views desc, last_viewed_on desc limit 0,10

Popular questions of class 9 Science

Abdul, while driving to school, computes the average speed for his trip to be 20 km h^-1. On his return trip along the same route, there is less traffic and the average speed is 40 km h^-1. What is the average speed for Abdul’s trip?

An object of mass 40 kg is raised to a height of 5 m above the ground. What is its potential energy? If the object is allowed to fall, find its kinetic energy when it is half-way down.

A driver of a car travelling at 52 km h^-1 applies the brakes and accelerates uniformly in the opposite direction. The car stops in 5 s. Another driver going at 3 km h^-1 in another car applies his brakes slowly and stops in 10 s. On the same graph paper, plot the speed versus time graphs for the two cars. Which of the two cars travelled farther after the brakes were applied?

Fig 8.11 shows the distance-time graph of three objects A,B and C. Study the graph and answer the following questions:

Fig. 8.11

(a) Which of the three is travelling the fastest?
(b) Are all three ever at the same point on the road?
(c) How far has C travelled when B passes A?
(d) How far has B travelled by the time it passes C?

Two objects, each of mass 1.5 kg, are moving in the same straight line but in opposite directions. The velocity of each object is 2.5 m s^-1 before the collision during which they stick together. What will be the velocity of the combined object after collision?

Soni says that the acceleration in an object could be zero even when several forces are acting on it. Do you agree with her? Why?

Two objects of masses 100 g and 200 g are moving along the same line and direction with velocities of 2 m s^-1 and 1 m s^-1, respectively. They collide and after the collision, the first object moves at a velocity of 1.67 m s^-1. Determine the velocity of the second object.

How do poriferan animals differ from coelenterate animals?

The speed-time graph for a car is shown is Fig. 8.12.

Fig. 8.12

(a) Find how far does the car travel in the first 4 seconds. Shade the area on the graph that represents the distance travelled by the car during the period.
(b) Which part of the graph represents uniform motion of the car?

How are sol, solution and suspension different from each other?

SELECT ex_no,question,question_no,id,chapter FROM question_mgmt as q WHERE courseId='8' AND subId='16' AND ex_no!=0 AND status=1 and id!=4033 ORDER BY last_viewed_on desc limit 0,10

Recently Viewed Questions of Class 9 Science

An object has moved through a distance. Can it have zero displacement? If yes, support your answer with an example.

What are the desirable agronomic characteristics for crop improvements?

Diagrammatically show the difference between the three types of muscle fibres.

Are the answers to the above questions necessarily the same or different? Why?

Differentiate between homogeneous and heterogeneous mixtures with examples.

Fig 8.11 shows the distance-time graph of three objects A,B and C. Study the graph and answer the following questions:

Fig. 8.11

Identify the type of tissue in the following: skin, bark of tree, bone, lining of kidney tubule, vascular bundle.

A hammer of mass 500 g, moving at 50 m s^-1, strikes a nail. The nail stops the hammer in a very short time of 0.01 s. What is the force of the nail on the hammer?

Write the electronic configuration of any one pair of isotopes and isobars.

If the organisation of a cell is destroyed due to some physical or chemical influence, what will happen?

< Previous Question

Next Question >

Popular questions of class 9 Science

Recently Viewed Questions of Class 9 Science

Comments

Comment(s) on this Question

NCERT Solutions

Quick Links

Resources

Support