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question_answer1)
Which part of the coconut enables it to float on water
A)
P done
clear
B)
Q done
clear
C)
R done
clear
D)
S done
clear
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question_answer2)
Study the seed below. By which method are they most likely to be dispersed the farthest away from their parent plant?
A)
By water done
clear
B)
By splitting/explosive action done
clear
C)
By wind done
clear
D)
By animals done
clear
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question_answer3)
The parts of different plants are shown below.
Complete the sentence. All these plant parts _____.
A)
Can grow into new plants done
clear
B)
Rely only on stored food for growth done
clear
C)
Do not need air, water and sunlight to germinate done
clear
D)
Have to be dispersed before they can grow done
clear
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question_answer4)
Mona and her friends spotted the seedling shown below growing on a sandy shore.
Which of the following is the method by which the seed (which is now a seedling) was dispersed far away from its parent plant?
A)
By wind done
clear
B)
By water done
clear
C)
By explosive/splitting action done
clear
D)
By animals done
clear
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question_answer5)
The table below shows the parts of a germinating seedling and their functions.
Part of seedling | Function |
P | Supplies food |
Q | Forms the root |
R | Forms leaves and stem |
Which of the following represents P, Q and R?
A)
B)
C)
D)
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question_answer6)
This seed is best dispersed by
A)
Water. done
clear
B)
Birds. done
clear
C)
Insects. done
clear
D)
Wind. done
clear
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question_answer7)
The figure shows the leaf of a plant.
What process is shown above?
A)
Desication done
clear
B)
Vegetative reproduction done
clear
C)
Defecation done
clear
D)
Nutrition done
clear
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question_answer8)
The figures given below shows four different fruits/seeds.
Which two fruits/seeds are dispersed by animals?
A)
P and Q done
clear
B)
Q and R done
clear
C)
P and R done
clear
D)
R and Q done
clear
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question_answer9)
The seed given below germinates under the right conditions.
Which of the labelled parts would grows first?
A)
P done
clear
B)
Q done
clear
C)
R done
clear
D)
S done
clear
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question_answer10)
Observe the figure given below. Ginger It reproduces from
A)
The buds on the root. done
clear
B)
The buds on the stem. done
clear
C)
The seeds. done
clear
D)
The buds on the leaf. done
clear
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question_answer11)
Study the diagram below:
Which of these factors are required for the seed to germinate?
P - Water |
Q - Air |
R - Nutrients |
S - warmth |
A)
Only P R and S done
clear
B)
Only P Q and R done
clear
C)
Only P Q and S done
clear
D)
Only P R and S done
clear
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question_answer12)
Which part of an onion can grow into a new plant?
A)
P done
clear
B)
Q done
clear
C)
R done
clear
D)
S done
clear
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question_answer13)
The fruit shown is dispersed by
A)
Wind. done
clear
B)
Water. done
clear
C)
Animals. done
clear
D)
Explosion. done
clear
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question_answer14)
The seeds of ________ fruit are dry and dispersed by explosion when we touch them.
A)
Drumstick done
clear
B)
sycamore done
clear
C)
Cotton done
clear
D)
poppy done
clear
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question_answer15)
Study the following table.
P - part of the embryo that grows into stem and leaves |
Q - small opening for water in a seed |
R - part of the embryo that grows into a root |
S - seed without skin |
Which of the following correctly represents R Q, R and S?
A)
P-radicle, Q-plumule, R-micropyle, S-cotyledon done
clear
B)
P-plumule, Q-micropyle, R-radicle, S-cotyledon done
clear
C)
P-radicle, Q-micropyle, R-plumule, S-cotyledon done
clear
D)
P-embryo, Q-radicle, R-micropyle, S-cotyledon done
clear
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question_answer16)
The scattering of seeds over a wide area is called
A)
Pollination. done
clear
B)
Fertilization. done
clear
C)
Dispersal. done
clear
D)
Germination. done
clear
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question_answer17)
In dandelion plant, seeds are dispersed by
A)
Animals. done
clear
B)
Water. done
clear
C)
Wind. done
clear
D)
Explosion of fruit. done
clear
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question_answer18)
Moringa (drum stick) seeds are dispersed by wind as they possess
A)
Wings. done
clear
B)
pappus. done
clear
C)
Hairy tuft. done
clear
D)
all the above done
clear
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question_answer19)
The seeds of guava are dispersed by
A)
Wind. done
clear
B)
Animals. done
clear
C)
Water. done
clear
D)
Explosion mechanism. done
clear
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question_answer20)
The ________ seeds are dispersed by birds which consume the fruit.
A)
Berry done
clear
B)
coconut done
clear
C)
Cotton done
clear
D)
lotus done
clear
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question_answer21)
A goat ate a tomato and seeds passed out undamaged. What type of dispersal is it?
A)
Wind dispersal done
clear
B)
Animal dispersal done
clear
C)
Water dispersal done
clear
D)
Explosion mechanism done
clear
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question_answer22)
In the diagram given below, what is the function of the seed leaf X?
A)
It provides water. done
clear
B)
It provides food. done
clear
C)
It prepares food. done
clear
D)
It supports the stem. done
clear
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question_answer23)
The given figure shows the structure of a seed. Identify the parts and choose the correct answer.
A)
P - cotyledon, Q - radicle, R - plumule done
clear
B)
P - plumule, Q - cotyledon, R - radicle done
clear
C)
P-endosperm, Q-cotyledon, R-epicotyl done
clear
D)
P-cotyledon, Q-hycotyl, R-epicotyl done
clear
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question_answer24)
Which of the following seeds in the figure given below is not dispersed by wind?
A)
P done
clear
B)
Q done
clear
C)
R done
clear
D)
S done
clear
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question_answer25)
Read the statements given below and choose the correct answer.
P - all plants have fruits that produce a large number of seeds. |
R - some plants reproduce by vegetative propagation |
A)
P is correct, R is incorrect. done
clear
B)
P is incorrect, R is correct. done
clear
C)
Both P and R are correct, but R does not explain P done
clear
D)
Both P and R are incorrect done
clear
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question_answer26)
The diagram below shows three seeds, A, B and C.
Which one of the following can be grouped with the three seeds shown above?
A)
B)
C)
D)
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question_answer27)
The box given below contains the characteristics of a seed.
Light in weight, small and dry |
Which of the following dispersal agents helps these seeds in their dispersal?
A)
Water done
clear
B)
Wind done
clear
C)
Explosive mechanism done
clear
D)
Animals done
clear
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question_answer28)
Different types of fruits have different adaptations for dispersal of seeds. The diagram below shows some fruits of the pod type.
How are seeds in these fruits dispersed?
A)
By explosion done
clear
B)
By animals done
clear
C)
By water done
clear
D)
By wind done
clear
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question_answer29)
Which part of the embryo grows first?
A)
Radical done
clear
B)
Plumule done
clear
C)
Leaves done
clear
D)
Cotyledons done
clear
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question_answer30)
Seeds are dispersed by
A)
Only water. done
clear
B)
Only explosion of fruits. done
clear
C)
Only wind. done
clear
D)
all of these done
clear
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question_answer31)
Which of these supplies food to the developing embryo until the plumule develops green leaves?
A)
Radicle done
clear
B)
Cotyledons done
clear
C)
Micropyle done
clear
D)
Testa done
clear
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question_answer32)
The sequence of the life cycle of a plant is:
A)
Seed, seedling, plant, sapling. done
clear
B)
Sapling, seedling, seed, plant. done
clear
C)
Seedling, seed, plant, sapling. done
clear
D)
Seed, seedling, sapling, plant. done
clear
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question_answer33)
Which of the following sentences can be linked with the words given below?
Water |
Wind |
Explosive |
Animals |
A)
They help animals reproduce. done
clear
B)
They form spores. done
clear
C)
They encourage parent plants to look after their off springs. done
clear
D)
They disperse seeds to avoid competition. done
clear
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question_answer34)
The figure shows a fruit.
Which of the following methods of seed dispersal is taking place?
A)
Dispersal by water done
clear
B)
Dispersal by animals done
clear
C)
Dispersal by air done
clear
D)
Dispersal by explosion done
clear
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question_answer35)
Which of the following dispersal agents mechanism is/are involved in the dispersal of the seeds?
A)
Explosive mechanism done
clear
B)
Animals done
clear
C)
Wind done
clear
D)
Water done
clear
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question_answer36)
Write the following events in the order in which they happen. When you plant a bean seed in the soil.
P - The appearance of first root. |
Q - Sowing of the seed in the soil. |
R - The appearance of the first two leaves. |
S - The watering of the seed. |
A)
Q, R, S, P done
clear
B)
R, Q, P, S done
clear
C)
Q, S, P, R done
clear
D)
P, S, R, Q done
clear
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question_answer37)
Which of the following is a rabi crop?
A)
Rice done
clear
B)
Millets done
clear
C)
Maize done
clear
D)
Beans done
clear
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question_answer38)
From what do the plants given below reproduce?
Rose, hibiscus, bougainvillea, sugarcane |
A)
Root buds done
clear
B)
Stem buds done
clear
C)
Leaf buds done
clear
D)
Stem cuttings done
clear
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question_answer39)
Which of these grows from roots?
A)
Potato done
clear
B)
Ginger done
clear
C)
Sweet potato done
clear
D)
Onion done
clear
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question_answer40)
Match the following plants in Column I with their mode of reproduction in Column II.
| Column -I | | Column II |
p. | Potato | i | Bulb |
q. | Onion | ii | Eyes |
r. | Bryophyllum | iii | Stem cutting |
S | Rose | iv | Leaves |
A)
p-ii, q-iii, r-i, s-iv done
clear
B)
p-ii, q-f, r-iv, s-iii done
clear
C)
p-i, q-ii, r-iii, s-iv done
clear
D)
p-iv, q-iii, r-ii, s-i done
clear
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