Explore topic-wise MCQs in 7th Class.

This section includes 2637 Mcqs, each offering curated multiple-choice questions to sharpen your 7th Class knowledge and support exam preparation. Choose a topic below to get started.

601.

Abhi cut the potato into sections as shown below. Which section(s) will NOT produce new plants?

A.  P only
B.  Q and R on
C.  Q and S only
D.  P and R only
Answer» D.  P and R only
602.

Where does fertilization occur in flowers?

A.  Stigma                                
B.  Style
C.         Ovary                  
D.         Pollen grain
Answer» D.         Pollen grain
603.

Which of the following have fruits that have a parachute of hair called pappus?

A.  Maple and xanthium
B.  Madar and sunflower
C.  Balsam and beans
D.  Mango and coconut
Answer» C.  Balsam and beans
604.

Which of the following is not a vegetatively propagated plant?

A.  Bryophyllum    
B.  Hibiscus              
C.  Sugar cane        
D.         Cotton plant
Answer» E.
605.

The female organ of a flower is called the pistil. Which of the following is not a part of the pistil?

A.  Stigma
B.  Style
C.  Pollen grains
D.  Ovary with ovules
Answer» D.  Ovary with ovules
606.

Which of the following are the characteristic feature of fruits dispersed by animals?

A.  Hooked and spiny
B.  Dry and light
C.  Light and powdery
D.  Unattractive
Answer» B.  Dry and light
607.

Which of the following labelled figure is/ are NOT an example of vegetative propagation?

A.  P only
B.  Q only
C.  R and S only
D.  P, Q and R only
Answer» C.  R and S only
608.

Which of the following dispersal mechanisms disperse xanthium seeds?

A.  Wind
B.  Animals
C.  Water
D.  Explosion mechanism
Answer» C.  Water
609.

In which of the following modes of reproduction an individual produces offspring without the help of another individual?

A.  Sexual reproduction
B.  Hybridisation
C.  Fertilization
D.  Asexual reproduction
Answer» E.
610.

Why must seeds be dispersed far away from the parent plant? (i) To ensure the survival of the species (ii) to avoid competition for sunlight (iii) Because plants can move by themselves (iv) To ensure plants obtain sufficient space for growth

A.   (i) and (ii) only
B.  (iii) and (iv) only
C.  (i), (ii) and (iv) only
D.  (i), (ii), (iii) and (iv)
Answer» D.  (i), (ii), (iii) and (iv)
611.

Which organism multiplication makes the dough to rise?

A.  Yeast                                   
B.  Mucor 
C.  Moss                   
D.         Mould
Answer» B.  Mucor 
612.

Which of the following statements is true about sticky stigma?

A.  To produce scents to attract birds and insects.
B.  To hold pollen grain strongly.
C.  There is no known function.
D.  To attract bees.
Answer» C.  There is no known function.
613.

The figure given below represents which of the following processes?

A.  Growth                              
B.  Germination    
C.  Fertilization      
D.         Dispersion
Answer» D.         Dispersion
614.

Which of the following constitute a pistil?

A.  Stigma, anther and ovary.
B.  Stigma, stamen and ovary.
C.  Pollen sac, style and ovule.
D.  Stigma, style and ovary.       
Answer» E.
615.

Bryophyllum grows from which of the following parts of a plant?

A.  Bulbs of the modified stems.
B.  Eyes on the tuberous roots.
C.  Outgrowths from the modified roots.
D.  Leaf buds on the modified leaves.
Answer» E.
616.

In potatoes, new plants grow from which of the following parts of the stems?

A.  Bulbs of the modified stems.
B.  Buds on the leaflets.
C.  Modified roots.
D.  Eyes of the modified stems.
Answer» E.
617.

Onions and gladiola grow from which of the following parts?

A.  Bulbs
B.  Roots
C.  Buds on the leaf margin
D.  Spores
Answer» B.  Roots
618.

Which of the following options define the term vegetative reproduction?

A.  Fertilization of stamens and stigma through pollen grains.
B.  Development of new plant from spores when favorable conditions are provided.
C.  Reproduction of new plants from any part of a plant other than the reproductive organs.
D.  Reproduction of a plant from reproductive organs.
Answer» D.  Reproduction of a plant from reproductive organs.
619.

Which of these labelled parts form the carpel?

A.  P and Q only
B.  P, Q and R only
C.  S and T only
D.  S, T and R only
Answer» C.  S and T only
620.

Which of the following grow into a new plant in mushroom and mucor?

A.  Spores                                
B.  Roots  
C.         Seeds                  
D.         Cuttings
Answer» B.  Roots  
621.

The box given below shows four different fruits. Which two fruits are dispersed by animals?

A.  (i) and (ii)                           
B.  (i) and (iii)          
C.  (ii) and (iv)        
D.         (iii) and (iv)
Answer» D.         (iii) and (iv)
622.

The diagram shows the structure of a flower. Where do pollination and fertilization take place?

A.  Pollination-X; Fertilization-Y
B.  Pollination-Y; Fertilization-X
C.  Pollination-Y; Fertilization-Z
D.  Pollination-Z; Fertilization-Y
Answer» C.  Pollination-Y; Fertilization-Z
623.

Look at the diagram of fruits P and Q. Fruit P has thick and juicy flesh, fruit Q is covered with stiff hairs. The fruits P and Q are likely to be dispersed by which of the following dispersal agents?

A.  Wind                                   
B.  Water 
C.  Animals              
D.         Splitting
Answer» D.         Splitting
624.

Which of these coloured labelled part of the flower attracts bees and butterflies to help it to pollinate?

A.  (i)                                          
B.  (ii)                         
C.         (iii)                        
D.         (iv)
Answer» B.  (ii)                         
625.

Which of the following is not a characteristic feature of wind pollinated flower?

A.  Flowers produce huge quantities of pollens.
B.  Petals are brightly coloured and showy.
C.  Pollen grains are light and non-sticky.
D.  Stamens are well exposed.
Answer» C.  Pollen grains are light and non-sticky.
626.

Arrange the sentences given below in order to describe the process of fertilization. W: The pollen tube grows down through the style reaches the ovary. X: The pollen grain germinates on reaching the stigma. Y: The male gamete moves into the ovule to fuse with the ovum. Z: The pollen tube grows out from the pollen.                 Which of these options are in the correct order?

A.  WXYZ                  
B.         XZWY  
C.  YWZX                  
D.         WZXY
Answer» C.  YWZX                  
627.

Which of these plants undergo vegetative reproduction?

A.  Tomato, lady's-finger, onion, cauliflower.
B.  Potato, ginger, onion, sugarcane.
C.  Cauliflower, onion, potato, tomato.
D.  Lady's-finger, onion, ginger, sugarcane.
Answer» C.  Cauliflower, onion, potato, tomato.
628.

Which of the following plants reproduce in the same way as sugarcane? (i) Bryophyllum (ii) Rose (iii) Hibiscus

A.  (i) and (ii) only
B.  (i) and (iii) only
C.  (ii) and (iii) only
D.  (i), (ii) and (iii)
Answer» D.  (i), (ii) and (iii)
629.

Identify the correct alternative which replaces the "?".

A. 142                  
B. 131
C. 125                  
D.        128
E. None of these
Answer» B. 131
630.

Choose the box that is similar to the box formed from the given sheet of paper (R).

A. I and II only                  
B. II and III only
C. I and IV only                 
D. III and IV only
E. None of these
Answer» D. III and IV only
631.

Direction: In each of the questions given below choose the figure, which should come in place of ???.

A.       
B.       
C.       
D.       
Answer» C.       
632.

Direction for questions: In these questions, symbols  and \[\] are used with different meanings as follows: \['AB'\] means \['A\] is not smaller than \[B'\] \['A\#B'\] means \['A\] is neither smaller than nor equal to \[B'\]. \['A%B'\] means \['A\] is not greater than \[B'\]. \['A\$B'\] means \['A\] is neither greater than nor equal to \[B'\] \['AB'\]means \['A\] is neither smaller than nor greater than \[B'\]. Statements: \[WX,\,\,X\#E,\,\,E\$N,\,\,N%G\] Conclusions: I. \[W\#E\]                          II. \[G\#E\] III. \[WG\]  

A. only I is true
B. only II is true
C. only either I or III is true
D. Both I and II are true
E. None of these
Answer» E. None of these
633.

Direction for questions: In these questions, symbols  and \[\] are used with different meanings as follows: \['AB'\] means \['A\] is not smaller than \[B'\] \['A\#B'\] means \['A\] is neither smaller than nor equal to \[B'\]. \['A%B'\] means \['A\] is not greater than \[B'\]. \['A\$B'\] means \['A\] is neither greater than nor equal to \[B'\] \['AB'\]means \['A\] is neither smaller than nor greater than \[B'\]. Statements: \[U\$W,\,\,W%L,\,\,LM,\,\,M%I\] Conclusions: I. \[~W%I\]                                         II. \[~U\$M\] III. \[U\$I\]

A. only I and II are true      
B. only II and III are true
C. only I and III are true
D. All are true
E. None of these
Answer» E. None of these
634.

Direction for questions: In these questions, symbols  and \[\] are used with different meanings as follows: \['AB'\] means \['A\] is not smaller than \[B'\] \['A\#B'\] means \['A\] is neither smaller than nor equal to \[B'\]. \['A%B'\] means \['A\] is not greater than \[B'\]. \['A\$B'\] means \['A\] is neither greater than nor equal to \[B'\] \['AB'\]means \['A\] is neither smaller than nor greater than \[B'\]. Statements: \[F\$Q,\,\,Q%I,\,\,IJ,\,\,J\#L\] Conclusions: I. \[QJ\]                                                II. \[J%F\] III. \[I%L\]

A. only I is true      
B.        only II is true
C. only III is true    
D.        only I and II are true
E. None of these
Answer» F.
635.

Direction for questions: In these questions, symbols  and \[\] are used with different meanings as follows: \['AB'\] means \['A\] is not smaller than \[B'\] \['A\#B'\] means \['A\] is neither smaller than nor equal to \[B'\]. \['A%B'\] means \['A\] is not greater than \[B'\]. \['A\$B'\] means \['A\] is neither greater than nor equal to \[B'\] \['AB'\]means \['A\] is neither smaller than nor greater than \[B'\]. Statements: \[J\#P,\,\,PT,\,\,T\$R,\,\,R%F\] Conclusions: I. \[J\#R\]                                            II. \[R\#F\] III. \[J\#T\]

A. only I is true                  
B. only I and II are true
C. only III is true                
D. All are true
E. None of these
Answer» D. All are true
636.

Direction for questions: Seven Candidates Harry, Samy, Nicolas, Shane, Nancy, Lokesh and Serena are to be interviewed for selection as Trainee officers by different panels I to VII for different companies P, Q, R, S, T, U and W not necessarily in the same order. Nicolas is interviewed by panel IV for a company P. Samy is interviewed by panel III but not for company R or S. Harry is interviewed for company Q but not by panel I or II. Nancy is interviewed by panel VI for company T. Panel VII conducts the interview for company U. Shane is interviewed by panel I but not for company R. Panel II does not interview Lokesh. Which among the following is a correct pair of the candidate and company?

A. Samy - W         
B. Lokesh - Q   
C. Serena - P         
D.        Nicolas ? T
E. None of these
Answer» B. Lokesh - Q   
637.

Direction for questions: Seven Candidates Harry, Samy, Nicolas, Shane, Nancy, Lokesh and Serena are to be interviewed for selection as Trainee officers by different panels I to VII for different companies P, Q, R, S, T, U and W not necessarily in the same order. Nicolas is interviewed by panel IV for a company P. Samy is interviewed by panel III but not for company R or S. Harry is interviewed for company Q but not by panel I or II. Nancy is interviewed by panel VI for company T. Panel VII conducts the interview for company U. Shane is interviewed by panel I but not for company R. Panel II does not interview Lokesh. Shane is interviewed for which Company?

A. W                                
B. Q
C. R                     
D.        S
E. None of these
Answer» E. None of these
638.

Direction for questions: Seven Candidates Harry, Samy, Nicolas, Shane, Nancy, Lokesh and Serena are to be interviewed for selection as Trainee officers by different panels I to VII for different companies P, Q, R, S, T, U and W not necessarily in the same order. Nicolas is interviewed by panel IV for a company P. Samy is interviewed by panel III but not for company R or S. Harry is interviewed for company Q but not by panel I or II. Nancy is interviewed by panel VI for company T. Panel VII conducts the interview for company U. Shane is interviewed by panel I but not for company R. Panel II does not interview Lokesh. Which Candidate is interviewed by panel V?

A. Harry   
B. Lokesh
C. Serena  
D.        Shamy
E. None of these
Answer» B. Lokesh
639.

To m put his handwatch on the table in such a way that at 6 pm hour hand points to East. In which direction the minute hand will point at 9:15 PM?

A. East                 
B.        North
C. North-East        
D.        South-East
E. None of these
Answer» C. North-East        
640.

Find the missing number in the following figure.    

A. 13                                
B. 16 
C. 18                    
D.        20
E. None of these
Answer» D.        20
641.

Find the number which replaces the ???      

A. 8                                 
B. 12
C. 6                     
D.        9
E. None of these
Answer» D.        9
642.

If \['\div ',\]denotes \['\times '\] \['+'\] denotes \['-',\,'-'\] denotes \['+'\]and \['\times '\] denotes \['\div ',\] then find the number which replaces '?'. \[24\div 36\times 12+8-4=?\]

A. 60                                
B. 68
C. 66                    
D.        220
E. None of these
Answer» C. 66                    
643.

Find the number which replaces the "?". 9 8 6 18 26 32 5 ? 16 32 47 54

A. 14                                
B. 16
C. 17                    
D.        13
E. None of these
Answer» E. None of these
644.

Direction for questions: In the following questions, find the one letter that comes in the circle such that it completes the word in front of the circles and begin the word after the circles. The same letter must fit into both the blanks.

A. P                                 
B. D
C. K                     
D.        M
E. None of these
Answer» D.        M
645.

DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Blue color of copper sulphate solution changes on addition of piece of zinc. Reason (R): Zinc is above copper in activity series

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.
Answer» B. Both A and R are true but R is not the correct explanation of A.
646.

DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Evolution of gas is confirmed sign of physical change. Reason (R): Hydrogen gas is evolved on reaction of acids on metals.

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.
Answer» E.
647.

DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Change of water from liquid to steam on heating is a physical change. Reason (R): The volume during heating remains the same and the change involves a change in composition.

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.
Answer» D. A is false but R is true.
648.

DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 2 Look at the following diagram and answer the given questions. Above shown process will be faster in which area?    

A. Hilly area                    
B. Desert area
C. Coastal area
D. Equally faster in all areas
Answer» D. Equally faster in all areas
649.

DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 1 A change in which two or more substances (reactants) combine to produce one or more new substances (products) that has/have different chemical properties than the reactants is called chemical change. In a chemical change new products are formed. The characteristics of a chemical change are following: 1. Heat, light or any other radiation (ultraviolet) may be given off or absorbed. 2. Sound may be produced. 3. A change in smell may take place or a new smell may be given off. 4. A colour change may take place. 5. A gas may be formed. Change in which only physical properties of any substances get changed and no new substance is formed is called a physical change. Such as shape, size, colour and state, is known as physical change. A physical change is mostly reversible and during physical change no new substances are formed. A change is considered as a chemical change when

A. it is accompanied by energy change
B. it is accompanied by formation of new substances
C. it is accompanied by change in physical properties
D. All the above are correct
Answer» E.
650.

DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 1 A change in which two or more substances (reactants) combine to produce one or more new substances (products) that has/have different chemical properties than the reactants is called chemical change. In a chemical change new products are formed. The characteristics of a chemical change are following: 1. Heat, light or any other radiation (ultraviolet) may be given off or absorbed. 2. Sound may be produced. 3. A change in smell may take place or a new smell may be given off. 4. A colour change may take place. 5. A gas may be formed. Change in which only physical properties of any substances get changed and no new substance is formed is called a physical change. Such as shape, size, colour and state, is known as physical change. A physical change is mostly reversible and during physical change no new substances are formed. The reason for a physical change to be named as such is that the

A. change occurs only in physical properties
B. transfer of energy occurs
C. is a reversible change
D. All the above are correct
Answer» B. transfer of energy occurs