Practice the AP 7th Class Science Bits with Answers Chapter 7 Reproduction in Plants on a regular basis so that you can attempt exams with utmost confidence.
AP 7th Class Science Bits Chapter 7 Reproduction in Plants with Answers
I. Multiple Choice Questions
Choose the correct answer and write its letters in the brackets.
1. Seeds are related to
A) stem
B) root
C) flower
D) leaf
Answer:
C) flower
2. Sugarcane propagates through
A) nodes
B) leaf
C) root
D)suckers
Answer:
A) nodes
3. Ground layering is seen in
A) Jasmine
B) Bougainvillea
C) Strawberry
D) All
Answer:
D) All
4. Which one is formed from layering branch?
A) Roots
B) Leaves
C) Nodes
D) Fruits
Answer:
A) Roots
5. The rooted plant in grafting is called as
A) Scion
B) Stock
C) Node
D) Cutting
Answer:
B) Stock
6. In grafting which have desirable characters
A) Scion
B) Stock
C) Root
D) Leaf
AnsA) Scionwer:
7. 
This symbol represents
A) Female
B) Male
C) Both
D) Flower
Answer:
B) Male
8. 
This symbol represents
A) Male
B) Female
C) Both
D) Pollination
Answer:
B) Female
9. 
This diagram indicates
A) Pistil
B) Corolla
C) Stamens
D) Sepals
Answer:
A) Pistil
10. How many whorls that the complete flower has
A) 2
B) 3
C) 4
D) 5
Answer:
C) 4
11. Complete flowers also called as
A) Male flower
B) Female flower
C) Unisexual flower
D) Bisexual flower
Answer:
D) Bisexual flower
12. Ipomea have
A) Unisexual flower
B) Bisexual flower
C) Male flower
D) Female flower
Answer:
B) Bisexual flower
13. The zygote develops into
A) Embryo
B) Fruit
C) Flower
D) Stem
Answer:
A) Embryo
14. Which of the flower colour change after fertilization?
A) Mango
B) Rose
C) Cotton
D) Neam
Answer:
C) Cotton
15. Seeds compitect for
A) Soil
B) water
C) light
D) All
Answer:
D) All
16. Which process makes life immortal?
A) Reproduction
B) Digesion
C) Respiration
D) Circulation
Answer:
A) Reproduction
17. Transfer of pollen to stigma is
A) Pollination
B) Fertilization
C) Germination
D) Growth
Answer:
A) Pollination
18. Assertion (A) : A stamen has 2 parts.
Reason (R) : Filament and anther are parts of a stamen.
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:
A) Both ’A’ and R’ are true and R’ is the correct explanation of ‘A’.
19. Assertion (A) : Parts of pistil are anther and filament.
Reason (R) : Bisexual flowers are those which contain both stamen ahd pistil.
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.
20. Assertion (A) : A flower may either have a male or a female part.
Reason (R) : A flower having both male and female parts is called bisexual flower.
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’.
21. Statement (I): After fertilization the ovary becomes the fruit and ovules the seeds.
Statement (ii) : Study of pollen grains is called polynology.
A) Statement (i) is correct while statement (ii) is incorrect.
B) Statement (ii is correct while statement (i) is correct.
C) Both statements are correct.
D) Both statements are incorrect.
Answer:
C) Both statements are correct.
22. It is the seat on which the parts of a flower are present.
A) Corolla
B) Thalamus
C) Calyx
D) Androecium
Answer:
B) Thalamus
23. It has funnel shape.
A) Corolla
B) Sepals
C) Calyx
D) Thalamus
Answer:
A) Corolla
24. This is the male part of the flower.
A) Gynoecium
B) Androecium
C) Petals
D) Sepals
Answer:
B) Androecium
25. This is the female part of a flower.
A) Petals
B) Calyx
C) Gynoecium
D) Androecium
Answer:
C) Gynoecium
26. An example for unisexual flower.
A) Bittergourd
B) Datura
C) Ipomea
D) Hibiscus
Answer:
A) Bittergourd
27. This is a bisexual flower.
A) Papaya
B) Cucumber
C) Bottlegourd
D) Hibiscus
Answer:
D) Hibiscus
28. The fleshy base to which all the floral parts are attached to is
A) Pedicel
B) Sepals
C) Thalamus
D) Petals
Answer:
C) Thalamus
29. The pollen grains are found in
A) Ovule
B) Anthers
C) Ovary
D) Stigma
Answer:
B) Anthers
30. The number of stamens present in Datura :
A) 5
B) 3
C) 6
D) 10
Answer:
A) 5
31. Ovules develop into :
A) flowers
B) plants
C) leaf
D) seeds
Answer:
D) seeds
32. The pollen grains contain
A) male garnets
B) female garnets
C) filaments
D) Stigma
Answer:
A) male garnets
33. It is a …………… 
A) Unisexual flower
B) Bisexual flower
C) Female flower
D) Male flower
Answer:
C) Female flower
34. In which type of flower this part is present?
A) Male flower
B) Bisexual flower
C) Both A & B
D) None of these
Answer:
C) Both A & B
35. Identify the part of flower
A) Stamen
B) Pistil
C) Petals
D) Sepals
Answer:
A) Stamen
36. Identify the part of flower.
A) Stamen
B) Pistil
C) Petals
D) Sepals
Answer:
B) Pistil
37. It shows that
A) T.S of flower
B) L.S of flower
C) T.S of stem
D) T.S of root
Answer:
B) L.S of flower
38. Pollen grains are formed from
A) Stamen
B) Pistil
C) Ovary
D) Sepals
Answer:
A) Stamen
39. In the pollination what is transfer from anther to stigma?
A) Ovule
B) Zygote
C) Seed
D) Pollengrain
Answer:
D) Pollengrain
40. Agents of pollination
A) Birds
B)Insects
C) Air
D) All of these
Answer:
D) All of these
41. New plants grow from the following part of a plant is not a vegetative reproduction
A) Root
B) Stem
C) Leaf
D) Flower
Answer:
D) Flower
42. This develops as fruit.
A) Ovary
B) Ovule
C) Petals
D) Flower
Answer:
A) Ovary
43. Ovules develop into
A) fruit
B) seed
C) flower
D) plant
Answer:
B) seed
44. Dispersal of this seed is by water.
A) Coconut
B) Soap nut
C) Neem
D) Milk weed
Answer:
A) Coconut
45. Dispersal of calotropis is through
A) Water
B) Animals
C) Wind
D) Humans
Answer:
C) Wind
46. These seeds are dispersed by animals.
A) Fleshy fruits
B) Coconut
C) Neem
D) Balsam
Answer:
A) Fleshy fruits
47. Neem seed is dispersed to other places by
A) Animals
B) Human beings
C) Birds
D) Water
Answer:
C) Birds
48. Dispersal by bursting of these fruits is done.
A) Neem
B) Coconut
C) Fleshy fruits
D) Bhendi
Answer:
D) Bhendi
49. People transferred these seeds across the globe.
A) Coconut
B) Neem
C) Soap nut
D) Sugarcane
Answer:
D) Sugarcane
50. Among the following dispersal of seed occurs through wind in
A) Coconut
B) Lotus
C) Milkweed
D) Mango
Answer:
C) Milkweed
51. Seeds of Lotus travel by
A) Birds
B) Insects
C) Animals
D) Water
Answer:
D) Water
52. These are carried by birds
A) Maple
B) Milkweed
C) Lotus
D) Neem
Answer:
D) Neem
53. On drying the pod explodes releases seeds with great force in
A) Mustard
B) Sugarcane
C) Pears
D) Tomato
Answer:
A) Mustard
54. These seeds are dispersal through
A) Water
B) Wind
C) Animals
D) Birds
Answer:
B) Wind
55. These seeds are dispersal through
A) Wind
B) Water
C) Animals
D) Birds
Answer:
B) Water
56. Seeds of sweet and fleshy fruits can dispersal through
A) Human beings
B) Birds
C) Animals
D) All of these
Answer:
C) Animals
57. Seed dispersal is essential for survival of
A) Plants
B) Animals
C) Birds
D) Human beings
Answer:
A) Plants
58. Cotton seeds have the following structures
A) Wing like outer growths
B) Hooks
C) Hairy parts
D) Thorns
Answer:
C) Hairy parts
59. The following seeds dispersal through human beings
A) Bhendi
B) Coconut
C) Tomato
D) Cotton
Answer:
C) Tomato
60. Identify the wrong statement.
A) All the seeds of a fruit should be able to germinate
B) Some seeds germinate but plants die before maturation
C) Some seeds never germinate
D) All seeds do not germinate
Answer:
A) All the seeds of a fruit should be able to germinate
61. This seed is dispersed by
A) Water
B) Air
C) Animals
D) Bursting
Answer:
C) Animals
62. Dispersal of seeds by bursting of fruits happens in
A) Sugarcane
B) Coconut
C) Lotus
D) Ladies finger
Answer:
D) Ladies finger
II. Fill in the blanks.
1. The propagation of Banana is through ………………………. .
2. The propagation of sugarcane is done by planting ………………………. .
3. Mint is propagated through ………………………. .
4. In potatoes, ………………………. are used for propagation.
5. In onions ………………………. are used for propagation.
6. Example for rhizome is ………………………. .
7. Example for corm is ………………………. .
8. Example for stem cutting is ………………………. .
9. Examples for ground layering are ………………………. .
10. Artificial propagation method used for getting plants with desired characters is ………………………. .
11. Sepals of a flower collectively called as ………………………. .
12. Petals of a flower are are collectively known as ………………………. .
13. Calyx is present in ………………………. whorl.
14. Corolla is present in ………………………. whori.
15. The male reproductive part of the flower is ………………………. .
16. The female reproductive part of the flower is ………………………. .
17. Androecium consists of ………………………. .
18. Gynoecium consists of ………………………. .
19. Androecium is present in ………………………. whorl of the flower.
20. Gynoecium is present in ………………………. whorl of the flower.
21. The smooth yellow coloured powder in anther is called ………………………. .
22. Transferring pollen from anther to stigma of the same flower is
23. Transferring of pollen grains from anther of one flower to stigma of another flower is known as ……………….. .
24. When pollen grains fall on stigma is ………………………. formed.
25. The fusion of pollen grains with ovules in ovary is known as ………………………. .
26. Fertilization results in the formation of ………………………. .
27. After fertilization, ovary ripes and turn into a ………………………. .
28. After fertilization, ovules turn into ………………………. .
29. Seeds with wings are carried away by ………………………. .
30. Example for seed dispersal through water is ………………………. .
31. Seeds of calotropis dispersed with the help of ………………………. .
32. Seeds of fleshy fruits are dispersed through ………………………. .
33. Seeds having hooks are dispersed with the help of ………………………. .
34. Neem seeds are dispersed with the help of ………………………. .
35. Seeds having hairs dispersed through ………………………. .
36. Dispersal of seed take place by bursting of fruits can be seen in ………………………. .
37. Lotus seeds are dispersed through ………………………. .
38. In Mustard, seeds dispersal takes place through ………………………. .
39. Seeds dispersed through aeroplanes and ships are ………………………. .
40. Flower shown in the picture is ………………………. .
41. Grafting technique is used in the plants like ………………………. for getting desired characters.
Answer:
- suckers
- nodes of sugarcane
- cut the twigs with nodes and sow them
- eyes
- Bulb
- Ginger
- colocasia
- rose
- Jasmine, Jaji
- grafting
- Calyx
- Corolla
- 1st
- 2nd
- Androecium
- Gynoecium
- Stamens
- Ovary with style and stigma
- 3rd
- 4th
- pollen grains
- Self – pollination
- cross – pollination
- pollen tube
- fertilization
- zygote
- fruit
- seeds
- wind
- coconut, louts
- wind
- animals, birds and man
- animals
- birds
- wind
- bhendi, balsam
- water
- bursting mechanism
- pulses, wheat, paddy
- Unisexual flower (or) incomplete flower
- mango, guava etc.
III. Match the following
1.
| Group – A | Group – B |
| 1. Datura | a) Bursting Mechanism |
| 2. Cucumber | b) Gynoecium |
| 3. Papaya | c) Androecium |
| 4. Stamen | d) Male and female flowers are on different plants. |
| 5. Pistil | e) Male and female flowers are on same plant. |
| f) Complete flower |
Answer:
| Group – A | Group – B |
| 1. Datura | f) Complete flower |
| 2. Cucumber | e) Male and female flowers are on same plant. |
| 3. Papaya | d) Male and female flowers are on different plants. |
| 4. Stamen | c) Androecium |
| 5. Pistil | b) Gynoecium |
2.
| Group – A | Group – B |
| 1. Fertilization | a) Birds |
| 2. Calotropis | b) Water dispersal |
| 3. Coconut | c) Animals |
| 4. Seeds of grass | d) Wind dispersal |
| 5. Neem | e) Zygote |
| f) Bursting mechanism |
Answer:
| Group – A | Group – B |
| 1. Fertilization | e) Zygote |
| 2. Calotropis | d) Wind dispersal |
| 3. Coconut | b) Water dispersal |
| 4. Seeds of grass | c) Animals |
| 5. Neem | a) Birds |
3.
| Group – A | Group – B |
| 1. Ovary | a) Wind dispersal |
| 2. Ovules | b) Bursting mechanism |
| 3. Anther | c) Nodes |
| 4. Maple | d) Pollengrain |
| 5. Balsam | e) Seeds |
| f) Fruit |
Answer:
| Group – A | Group – B |
| 1. Ovary | f) Fruit |
| 2. Ovules | e) Seeds |
| 3. Anther | d) Pollengrain |
| 4. Maple | a) Wind dispersal |
| 5. Balsam | b) Bursting mechanism |
4.
| Group – A | Group – B |
| 1. Suckers | a) Nodes |
| 2. Rhizome | b) Colocasia |
| 3. Bulb | c) Potato |
| 4. Eyes | d) Onion |
| 5. Corm | e) Ginger |
| f) Banana |
Answer:
| Group – A | Group – B |
| 1. Suckers | f) Banana |
| 2. Rhizome | e) Ginger |
| 3. Bulb | d) Onion |
| 4. Eyes | c) Potato |
| 5. Corm | b) Colocasia |
5.
| Group – A | Group – B |
| 1. Sugar cane | a) Suckers |
| 2. Seeds of Drumsticks | b) Bursting mechanism |
| 3. Seeds of Xanthium | c) Man |
| 4. Seeds of Custard apple | d) Animals |
| 5. Seeds of Lady’s finger | e) Wind |
| f) Nodes |
Answer:
| Group – A | Group – B |
| 1. Sugar cane | f) Nodes |
| 2. Seeds of Drumsticks | e) Wind |
| 3. Seeds of Xanthium | d) Animals |
| 4. Seeds of Custard apple | c) Man |
| 5. Seeds of Lady’s finger | b) Bursting mechanism |
6.
| Group – A | Group – B |
| 1. Rose | a) Buds on leaf |
| 2. Jasmine | b) Rhizome |
| 3. Mango | c) Suckers |
| 4. Chrysanthemum | d) Grafting |
| 5. Turmeric | e) Layering |
| f) Stem cutting |
Answer:
| Group – A | Group – B |
| 1. Rose | f) Stem cutting |
| 2. Jasmine | e) Layering |
| 3. Mango | d) Grafting |
| 4. Chrysanthemum | c) Suckers |
| 5. Turmeric | b) Rhizome |