Class 9 Science: Sample Question Paper Term I- 3 (With Solutions) | Science Class 9 PDF Download

Class - IX

General Instructions:

1. The Question Paper contains three sections.
2. Section - A has 24 questions. Attempt any 20 questions.
3. Section - B has 24 questions. Attempt any 20 questions.
4. Section - C has 12 questions. Attempt any 10 questions.
5. All questions carry equal marks.
6. There is NO negative marking.
   
   

Q.1: Which one of the following will result in the formation of a mixture? 
(a) Breaking of ice cubes into small pieces
(b) Adding sodium metal to water
(c) Agitating a detergent with water in a washing machine
(d) Crushing of a marble tile into small particles

Correct Answer is Option (c)
Detergent in water will form a mixture, others will not form a mixture.

Q.2: Flexibility in plants is due to
(a) parenchyma
(b) chlorenchyma
(c) collenchyma
(d) sclerenchyma

Correct Answer is Option (c)
Collenchyma consist of living cells and are characterised by the presence of cellulose. Collenchyma is a mechanical tissue in young dicotyledonous stems and provides mechanical support and elasticity. It provides great tensile strength with flexibility to those organs in which it is found. It allows easy bending in various parts of a plant mainly young growing stem without breaking them.

Q.3: The cell appear elongated, tapering at ends as observed under a microscope. It is
(a) sclerenchyma fibre
(b) striped muscle 
(c) parenchyma
(d) nerve cell

Correct Answer is Option (a)
There are two types of sclerenchyma cells:
i. fibres which are elongated cells with tapering ends and
ii. sclereids (also called stone cells), which are roughly isodiametric cells with narrow cavities.

Q.4: A ball is thrown up with a velocity of 20 ms^-1. What is the time of flight, neglecting air resistance?
(a) 8 sec
(b) 1 sec
(c) 2 sec
(d) 4 sec

Correct Answer is Option (d)
Using kinematic equation, v = u + a x t, when ball reaches to top of its trajectory, it's velocity becomes zero. Ball is thrown against gravity of earth, therefore a = - g, u = 20 m/s, we can find time of ascend as
0 = 20 -10 x t
20 = 10 x t
t = 20/10 = 2 sec

Time of ascend is same as time of descend = 2 sec.
Time of flight = time of ascend + time of descend
Therefore time of flight = 4 sec.

Q.5: According to the third law of motion, action and reaction
(a) act on either body at normal to each other
(b) always act on different bodies in opposite directions
(c) have same magnitude and direction
(d) always act on the same body

Correct Answer is Option (b)
According to Newton's 3rd law of motion, action and reaction are of equal magnitude and directed in opposite direction.

Q.6: What is the order of methods applied to separate the components of a mixture of salt, sand, and ammonium chloride?
(a) Sublimation, dissolving in water, filtration and evaporation
(b) Dissolving in water, evaporation, and sublimation
(c) Moving a magnet, dissolving in water and sublimation
(d) Dissolving in water, filtration, evaporation, and sublimation

Correct Answer is Option (a)
Ammonium chloride sublime and can be separated from the mixture of salt and sand by the process of sublimation. Sand can be separated from the mixture of sand and salt by dissolving salt in water and then by filtration. Salt can be separated through the process of evaporation.

Q.7: Match the following with the correct response:

(a) (A) - (iii), (B) - (ii), (C) - (iv), (D) - (i)
(b) (A) - (ii), (B) - (iv), (C) - (i), (D) - (iii)
(c) (A) - (i), (B) - (iii), (C) - (ii), (D) - (iv)
(d) (A) - (iv), (B) - (i), (C) - (iii), (D) - (ii)

Correct Answer is Option (d)

• Mitochondria have their own DNA and ribosomes. They can self-replicate. 
• The longest cells in the human body are neurons. Neurons or nerve cells form the basic component of the nervous system. They have a typical structure. 
• Chromoplasts are coloured plastids. Leucoplasts are white or colourless plastids. Plastids are present only in plant cells. Plastids are similar to mitochondria in the external structure. Like the mitochondria, plastids have their own DNA and ribosomes.
• Chromatin material is an entangled mass of thread-like structures inside the nucleus. The DNA is present as part of chromatin material which gets organized into chromosomes when the cell is about to divide.
  

Q.8: Name the tissue responsible for the movement of our body.
(a) Epithelial tissue 
(b) Connective tissue
(c) Nervous tissue
(d) Muscular tissue 

Correct Answer is Option (d)
Movement in our body is mainly caused by muscular tissue. Skeletal muscular tissues are joined with bones that cause movement due to contractile nature.

Q.9: A body is said to be in rest when:
(a) Its position doesn’t change with time with respect to the observer.
(b) It's position changes with time w.r.t observer.
(c) The body moves in uniform motion, w.r.t observer.
(d) None of these. 

Correct Answer is Option (a)
When a body does not change its position with respect to time, it is said that body is in a state of rest. Rest and motion are relative to the observer.

Q.10: Match the following with the correct response:

(a) (A) - (ii), (B) - (iv),(C) - (i), (D) - (iii)
(b) (A) - (iii), (B) - (ii).(C) - (iv), (D) - (i)
(c) (A) - (i), (B) - (iii),(C) - (ii), (D) - (iv)
(d) (A) - (iv), (B) - (i),(C) - (iii), (D) - (ii)

Correct Answer is Option (d)

• Inertia is the resistance of any physical object to any change in its state of motion.
• Friction is the necessary evil.
• Momentum = Mass x Velocity.
• Force - Rate of change of momentum (Newton's Second law).
  

Q.11: Substance 'X' was added to a test tube containing water and grounded arhar dal to test the presence of metanil yellow. The colour of solution changed to pink. Identify 'X'
(a) H₂CO₃ 
(b) NaOH
(c) HCl
(d) H₂O

Correct Answer is Option (c)
Metanil yellow is a synthetic dye which is not permitted to use as a food colour. However, it is extensively used to give yellow colour to dal and turmeric. It is toxic in nature and it has adverse effects on intestine and brain. Presence of metanil yellow can be tested in dal by adding a few drops of hydrochloric acid to test sample. If the test solution turns pink in colour, it indicates the presence of mentanil yellow.

Q.12: The functional units of the Golgi apparatus are:
(a) cisternae
(b) vacuoles
(c) vesicles
(d) cytoplasm

Correct Answer is Option (a)
Golgi apparatus is a membrane-bound organelle of eukaryotic cells (cells with clearly defined nuclei) that is made up of a series of flattened, stacked pouches called cisternae. The Golgi apparatus is responsible for transporting, modifying, and packaging proteins and lipids into vesicles for delivery to targeted destinations.

Q.13: Match the following with the correct response:

(a) (A) - (i), (B) - (iii), (C) - (ii), (D) - (iv)
(b) (A) - (iii), (B) - (ii), (C) - (iv), (D) - (i)
(c) (A) - (ii), (B) - (iv), (C) - (i), (D) - (iii)
(d) (A) - (iv), (B) - (i), (C) - (iii), (D) - (ii)

Correct Answer is Option (b)

• In hydrophytes such as water hyacinth, hydrilla, etc., large air cavities are present in parenchyma to give buoyancy to plant, such type of parenchyma is called aerenchyma. 
• Parenchyma is thin-walled cells found in soft parts of the plant, 
• Chlorenchyma is responsible for photosynthesis, 
• Cork is a permanent tissue.
  

Q.14: The SI unit of force is:
(a) Newton 
(b) Newton per second
(c) Newton per square metre 
(d) Newton metre

Correct Answer is Option (a)
The newton (symbol: N) is the International System of Units (SI) derived unit of force. It is named after Isaac Newton in recognition of his work on classical mechanics, specifically Newton's second law of motion.

Q.15: The unit of momentum can be expressed as N
(a) N/s
(b) N - s
(c) kg s²/m
(d) kg m/s² 

Correct Answer is Option (b)
The Newton second (also newton-second, symbol Ns or N-s) is the derived SI unit of Momentum. It is dimensionally equivalent to the momentum unit kilogram metre per second (kgm/s). One newton second corresponds to a one-newton force applied for one second.

Q.16: Add dil. HCl to (i) mixture of Fe and sulphur (ii) iron sulphide and choose the correct observation:
(a) Mixture of iron and sulphur reacts with HCl to give H₂S gas
(b) FeS does not react with HCl
(c) FeS reacts with HCl to give H₂ gas
(d) Mixture of iron and sulphur reacts with HCl to give H₂ gas

Correct Answer is Option (d)
If we will take a mixture of Fe and sulfur and add Dilute HCl only iron will react to form FeCl₂, reaction will takes place as follows
Fe + 2HCl → FeCl₂ + HCl
But if the mixture of Fe and S is heated they form FeS. If we add HCl in FeS it will release H₂S, Reaction takes place as follows:
FeS + 2HCl → FeCl + H₂S

Q.17: The proteins and lipids, essential for building the cell membrane, are manufactured by
(a) Mitochondria
(b) Golgi apparatus 
(c) Rough endoplasmic reticulum
(d) Plasma membrane

Correct Answer is Option (c)
The proteins and lipids, essential for building the cell membrane, are synthesized by the rough endoplasmic reticulum (RER). The ribosomes attached to the RER help in this process.

Q.18: Meristematic tissues in plants are 
(a) localized and dividing cells
(b) localized and permanent 
(c) not limited to certain regions
(d) growing in volume

Correct Answer is Option (a)
Meristematic tissues consists of actively dividing cells and is present in the growing regions of plants, e.g., the tips of roots and stems. The cells of meristematic tissue are round, oval, polygonal or rectangular. They are packed closely without intercellular spaces, have thin cellulose walls, dense cytoplasm and prominent nuclei. Vacuoles are almost absent in such cells because they are completely filled with sap.

Q.19: A car accelerates uniformly from 18 km/h to 36 km/h in 5 minutes. The acceleration is
(a) 5 ms^-1 
(b) 1 ms^-2 
(c) 1 km/s² 
(d) 216 ms^-2 

Correct Answer is Option (b)
Given,
u = 18km/h = 18 x 1000 / 60 x 60 = Sm/s
v = 36km/h = 36 x 1000 / 60 x 60 =10 m/s
t = 5 sec
acceleration, a = ?
1st equation of motion,
v = u + at 

10 = 5 + 5a
5a = 5
a = 5/5 = 1m/s

Q.20: Action reaction forces act:
(a) on the same body
(b) on different bodies
(c) in the same direction
(d) along different bodies

Correct Answer is Option (b)
Reaction from a body is caused due to action of some another body on it.

Q.21: Which of the following has the smell of rotten egg?
(a) Hydrogen Sulphide
(b) Calcium Sulphide
(c) Copper Sulphide 
(d) Iron Sulphide

Correct Answer is Option (a)
Hydrogen sulphide gas is a colorless gas with the characteristic foul odor of rotten eggs. It is very poisonous, corrosive, flammable, and acidic in nature.

Q.22: Identify the correct statement:
A. The double membrane is present in the nucleus.
B. A liver cell carries about 500-1000 mitochondria.
C. Wood contains the largest amount of cellulose.
D. All the statements are correct.
(a) (A) 
(b) (D) 
(c) (C)
(d) (B)

Correct Answer is Option (b)
The nucleus is a double membranous structure. It is surrounded by a double membrane - the inner nuclear membrane and the outer nuclear membrane. A liver cell contains about 500-1000 mitochondria. A large amount of cellulose is present in the wood of a plant.

Q.23: Primary growth in plants occurs by: 
A. Apical meristem
B. Intercalary meristem
C. Lateral meristem
D. Vertical meristem
(a) (A), (B) and (C) are correct
(b) (B) and (C) are correct 
(c) (A) and (B) are correct
(d) All of these 

Correct Answer is Option (c)

Primary growth in plants occurs by both the apical meristem and intercalary meristem. Apical meristem is present on root apex, stem apex, leaf buds, and flower buds. They are responsible for the growth in length, i.e. primary growth. Intercalary meristem act along with other types of meristem to increase the length of the leaves and stems. They are mainly found at the base of leaves and nodes and internodes.Lateral meristem is present along the side of the stem. They are responsible for growth in girth, i.e. secondary growth. Vertical meristem is also responsible for secondary growth.
So, In (a) and (b) Primary growth occur.

Q.24: Which of the statement is true?
Statement A: A curved line in a speed-time graph means non-uniform motion.
Statement B: A curved line in a velocity-time graph means uniform acceleration.
(a) Statement A is false, B is true
(b) Both the statement A and B are true
(c) Neither statement A nor Statement B is true.
(d) Statement A is true, B is false

Correct Answer is Option (d)
When the speed of a body changes in an irregular manner, the speed-time graph of the body is a curved line. The distance traveled by the body is given by the area between the speed-time curve and the time axis. For uniform speed graph is a straight line. For non-uniform speed graph is a curved line. For Increasing speed graph Straight line sloping upwards. For decreasing speed graph Straight line sloping downwards.
When the velocity-time graph is plotted for an object moving with uniform acceleration, the slope of the graph is a straight line.
So, statement A is true and B is false.

Q.25: A passenger in a moving train tosses a coin which falls behind him. It means that motion of the train is
(a) along circular tracks
(b) uniform
(c) accelerated
(d) retarded

Correct Answer is Option (c)
Coin falls behind due to inertia of motion.Inertia is an inherent property of an object to resist any change in its state of rest or of uniform motion.

Q.26: Which of the following is incorrect for cell theory:
A. All organisms are made up of cells.
B. All living organisms are made up of eukaryotic the cell only.
C. Cells arise from pre-existing cells.
D: The outermost covering of all living cells is the cell wall.
(a) B and C
(b) A and D
(c) All of these 
(d) B and D

Correct Answer is Option (d)
B and D are incorrect. According to cell theory, all organisms are made up of cells and cells arise from pre-existing cells.

Q.27: In the stratified epithelium, the basement membrane is in contact with
(a) the second layer of cells from base
(b) the second layer of cells from the top
(c) the basal most layer of cells
(d) the uppermost layer of cells

Correct Answer is Option (c)
Stratified epithelium contains two or more layers of epithelial cells with the cells in the deepest (basal) layer in contact with the basement membrane. The multiple cell layers make it strong and capable of resisting stress and protecting underlying tissue.

Q.28: The water conducting tissue generally present in gymnosperm is 
(a) xylem fibres
(b) tracheids
(c) sieve tube
(d) vessels

Correct Answer is Option (b)
The gymnosperms are characterised by the presence of tracheids as their major conducting tissue. These are elongated dead cells with hard lignified walls. They conduct water and do not have open ends like the vessels.

Q.29: A solution having a higher concentration than that inside the cell is called:
(a) Hypotonic
(b) Isotonic 
(c) Hypertonic 
(d) None of these

Correct Answer is Option (c)
A solution having a higher concentration than that inside the cell is known as a hypertonic solution. If a cell is placed in such a solution, exo-osmosis will take place and the cell will shrink.

Q.30: Match the following with correct response.

(a) 1-A, 2-C, 3-B, 4-D
(b) 1-C, 2-B, 3-D, 4-A
(c) 1-B, 2-D, 3-A, 4-C
(d) 1-D, 2-A, 3-C, 4-B

Correct Answer is Option (c)
i. Speed of a body is the distance travelled by it per unit time. 
ii. Velocity of a body is defined as the rate of change of its displacement with time.
iii. Acceleration of a body is defined as the rate of change of its velocity with time.
iv. The average speed of an object is the total distance traveled by the object divided by the elapsed time to cover that distance.

Q.31: Assertion (A): Change in momentum is impulse.
Reason (R): Impulse is the area between the (F-t) graph and the time axis.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.

Correct Answer is Option (b)

Q.32: Assertion (A): Endoplasmic reticulum acts as an intracellular transport system.
Reason (R): It transports products of cells to the outside and RNA into the cytoplasm from the nucleus. 
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true and R is false.
(d) A is false and R is true.

Correct Answer is Option (a)
The function of endoplasmic reticulum is to help in intra cellular transport.

Q.33: Assertion (A): The root tips of a plant were cut and the plant was replanted. The plant will die within few days of replanting.
Reason (R): The root tips are cut, the roots won’t grow because of the absence of meristematic tissue. And if the roots will not grow, proper absorption of water and minerals will not occur.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.

Correct Answer is Option (a)
The plant will die within few days of replanting. This is because since the root tips are cut, the roots won’t grow because of the absence of meristematic tissue. And if the roots will not grow, proper absorption of water and minerals will not occur.

Q.34: Assertion (A): The graph between two physical quantities P and Q is a straight line when P/Q is constant.
Reason (R): The straight-line graph means that P is proportional to Q or P is equal to constant multiplied by Q.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A. 
(c) A is true but R is false.
(d) A is false but R is true.

Correct Answer is Option (a)
According to statement of reason, as the graph is a straight line, P ∝ Q, or, P = constant x Q
P/Q = constant
Equation of a straight line is y = mx + c 

Q.35: Assertion (A): Plant cells have a single large vacuole.
Reason (R): Vacuole is responsible for the ingestion of food substances. 
(a) Both A and R are true and R is the correct explanation of A. 
(b) Both A and R are true and R is not the correct explanation of A. 
(c) A is true and R is false. 
(d) A is false and R is true.

Correct Answer is Option (c)
Vacuole is responsible for turgidity of cell.

Q.36: When iron filings and powdered sulphur are mixed together in a china dish:
(a) the constituents can be separated by a magnet
(b) a heterogeneous mixture results
(c) the constituents present can easily be seen 
(d) All of these

Correct Answer is Option (d)
Iron filings and sulphur powder will form a heterogeneous mixture, particles can be easily seen and iron filings can be easily seen and iron filings can be removed by a magnet.

Q.37: The system when starch is added to hot water is: 
(a) colloid 
(b) mixture 
(c) suspension
(d) true solution

Correct Answer is Option (a)
The colloid of starch is prepared by the dispersion method. 2-3 g of powdered/crushed starch is dissolved in 3- 4 ml of water to make a thin paste. This paste is added tolOO ml of boiling water while stirring. Allow the solution to cool and filter. The filtrate is colloid of starch.

Q.38: Which tissue has chloroplast in cells? 
(a) Sclerenchyma 
(b) Aerenchyma
(c) Parenchyma
(d) Chlorenchyma

Correct Answer is Option (d)
Chlorenchyma is a parenchyma tissue, consist of chloroplasts and performs photosynthesis found in the mesophyll of leaves.

Q.39: According to the law of conservation of momentum
(a) m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂ 
(b) None of these
(c) m₁u₁ + m₂v₂ = m₁v₁ + m₂u₂ 
(d) m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂ 

Correct Answer is Option (a)
When two object colloid. The Law of conservation of momentum states that total momentum before the collision is equal to the total momentum after a collision if no external force acts on it.

Q.40: Statement A: Gravitational force is the weakest force in nature.
Statement B: Electrostatic force is an example of non - contact forces.
Which of the above two statements is true?
(a) Statement B is true 
(b) Neither statement A nor B is true 
(c) Both statements A and B are true.
(d) Statement A is true

Correct Answer is Option (c)
Gravitational force is a very weak force as it depends upon the mass of the body and distance between two objects. The electrostatic force is a non-contact force as it acts even if there is no contact between the objects.

Q.41: Which of these is not related to endoplasmic reticulum?
(a) It transports materials between various regions in cytoplasm.
(b) It can be the site for some biochemical activities of the cell
(c) It behaves as transport channel for proteins between nucleus and cytoplasm.
(d) It can be the site of energy generation.

Correct Answer is Option (d)
Mitochondria is the site of energy generation. It is not generated in the endoplasmic reticulum.

Q.42: A person met with an accident in which two long bones of hand were dislocated. Which among the following may be the possible reason?
(a) Areolar tissue break
(b) Tendon break 
(c) Break of skeletal muscle 
(d) Ligament break

Correct Answer is Option (d)

Dislocation of joint occurs when there is an abnormal separation in joint, which are held together by ligament. Therefore ligament break may result in dislocation of bone. Areolar tissues join skin to muscles, fills spaces inside organs and is found around muscles, blood vessels and nerves.

Hence are not concerned with bones.

Q.43: The rate of change of momentum is: 
(a) impulse 
(b) force
(c) acceleration
(d) velocity

Correct Answer is Option (b)
Newton's Second Law: The rate of change of momentum of an object is directly proportional to the resultant force applied and is in the direction of the resultant force. The resultant force is equal to the rate of change of momentum.

Q.44: A mixture of common salt and water can be separated completely by the process of:
(a) sublimation
(b) distillation
(c) combustion 
(d) filtration

Correct Answer is Option (b)
A mixture of common salt and water can be separated completely by the process of distillation. The distillation can be used to separate a liquid from dissolved non-volatile solids. The process of distillation is used to obtain drinking water from sea-water in many countries.

Q.45: Which one of the following will form a translucent solution in water?
(a) Soil 
(b) Sand 
(c) Starch 
(d) Sugar

Correct Answer is Option (c)
Starch forms a colloidal solution. Colloidal solutions are translucent and their particles can pass through filter paper to give a translucent filtrate.

Q.46: Cell arises from the pre-existing cell was stated by 
(a) Virchow 
(b) Purkinje 
(c) Robert Hook 
(d) Robert Brown

Correct Answer is Option (a)
Rudolf Virchow presented the idea in 1855 that every cell arises from another (preexisting) cell. This was an addition to the cell theory that was proposed earlier by Matthias Jakob Schleiden and Theodor Schwann.

Q.47: The cells that do not lose their nucleus at maturity are: 
(a) Vessel cells
(b) Parenchymatous cells 
(c) Parenchymatous cells
(d) Companion cells

Correct Answer is Option (d)
Among these four only companion cells have a nucleus. The other three cells do not have a nucleus in maturation. Companion cells are the cell that does not lose their nucleus at maturity.

Q.48: Match the following with the correct response:

(a) (A) - (iii), (B) - (ii), (C) - (iv), (D) - (i)
(b) (A) - (i), (B) - (iii), (C) - (ii), (D) - (iv) 
(c) (A) - (iv), (B) - (i), (C) - (iii), (D) - (ii)
(d) (A) - (ii), (B) - (iv), (C) - (i), (D) - (iii)

Correct Answer is Option (b)

• The tissue which is responsible for flexibility in plants is Collenchyma. 
• Sclereids are called grit cells.
• Lignin deposition takes place in sclerenchyma. 
• Xylem and phloem involved in the conduction of water and the food.

Read the text carefully and answer the questions:
A suspension is a heterogeneous mixture in which the solute particles do not dissolve but remain suspended throughout the bulk of the medium. Particles of a suspension are visible to the naked eye. The particles of a suspension scatter a beam of light passing through it and make its path visible. Due to the relatively smaller size of particles, as compared to that of a suspension, the mixture appears to be homogeneous. The scattering of a beam of light is called the Tyndall effect. The components of a colloidal solution are the dispersed phase and the dispersion medium. The solute-like component or the dispersed particles in a colloid form the dispersed phase, and the component in which the dispersed phase is suspended is known as the dispersing medium.
Q.49: Which of the following is not the property of colloid?
(a) Colloids are big enough to scatter a beam of light passing through it. 
(b) A colloid is a heterogeneous mixture. 
(c) Size of particles of a colloid is too small
(d) A colloid is very unstable

Correct Answer is Option (d)

Q.50: Sol and gel are examples of:
(a) Sol is solid-solid colloid and gel is a solid-liquid colloid 
(b) Sol is a liquid-solid colloid and gel is a solid-liquid colloid 
(c) Solid-solid colloids
(d) Sol is a solid-liquid colloid and gel is a liquid-solid colloid

Correct Answer is Option (d)

Q.51: A mixture of sulphur and carbon disulphide is:
(a) Homogeneous and does not show Tyndall effect 
(b) Heterogeneous and does not show Tyndall effect 
(c) Heterogeneous and shows Tyndall effect 
(d) Homogeneous and shows Tyndall effect

Correct Answer is Option (a)

Q.52: Which of the following is an example of solid sol?
(a) Shaving cream
(b) Fog
(c) Coloured gemstone
(d) Milk

Correct Answer is Option (c)

Read the text carefully and answer the questions:
Plants are stationary or fixed they don’t move. Since they have to be upright, they have a large quantity of supportive tissue. The supportive tissue generally has dead cells. Animals, on the other hand, move around in search of food, mates and shelter. Another difference between animals and plants is in the pattern of growth. The growth of plants occurs only in certain specific regions. New cells produced by meristem are initially like those of meristem itself, but as they grow and mature, their characteristics slowly change and they become differentiated as components of other tissues. The girth of the stem or root increases due to lateral meristem (cambium). Cells of meristematic tissue are very active, lack vacuoles.
Q.53: Meristematic tissues are those which help in increasing the length and girth of the plant. Which of the following statement given below is correct about the meristematic tissue?
I. It is made up of cell that is incapable of cell division
II. It is made up of cell that is capable of cell division
III. It is composed of a single type of cell.
IV. It is composed of more than one type of cells
(a) (I) and (II) 
(b) (Ill) and (IV)
(c) Only (II)
(d) (II) and (III)

Correct Answer is Option (c)

Q.54: The dividing tissue of the plant is 
(a) meristematic 
(b) aerenchyma
(c) parenchyma 
(d) none of these

Correct Answer is Option (a)

Q.55: Identify A in the given figure
(a) none of these
(b) lateral 
(c) intercalary
(d) apical

Correct Answer is Option (c)

Q.56: _______ is present at the growing tips of stems and roots
(a) apical meristematic
(b) lateral meristematic 
(c) none of these
(d) intercalary meristematic

Correct Answer is Option (a)

Read the text carefully and answer the questions:
All objects resist a change in their state of motion. In a qualitative way, the tendency of undisturbed objects to stay at rest or to keep moving with the same velocity is called inertia. The first law of motion is also known as the law of inertia.

Q.57: Newton’s first law of motion says that a moving body should continue to move forever unless some external forces act on it. But a moving cycle comes to rest after some time if we stop pedaling it. Can you choose the correct reason for the stoppage of cycle?
I. Air resistance
II. The gravitational pull of the earth 
III. The friction of the road
IV. The heat of the environment
(a) (I) and (II)
(b) (Ill) and (IV)
(c) (I) and (III)
(d) (II) and (III)

Correct Answer is Option (c)

Q.58: Inertia is the property of a body by virtue of which, it cannot change by itself
(a) All of these 
(b) its direction of motion
(c) its state of rest 
(d) its steady state of uniform motion

Correct Answer is Option (a)

Q.59: ‘When a hanging carpet is beaten with a stick, the dust particles start coming out of it’. This phenomenon can be best explained by making use of :
(a) Newton’s third law of motion 
(b) Newton’s law of gravitation
(c) Newton’s second law of motion 
(d) Newton’s first law of motion

Correct Answer is Option (d)

Q.60: An athlete does not come to rest immediately after crossing the winning line due to the
(a) inertia of rest
(b) None of these
(c) inertia of direction
(d) inertia of motion

Correct Answer is Option (d)