Reproduction in Plants Test

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Reproduction in Plants Test - 4

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Weekly Quiz Competition

Question 1

1 / -0

Aman collected four different types of seeds (A, B, C and D). The characteristic of each seed is given below. Identify the seeds and the agent of their dispersal. Select the correct option.

A - Have wing-like structures
B - Tough fibrous covering
C - Have spine-like structures
D - Enclosed in a fruit that bursts open on maturity

	Seed	Agent of Dispersal
1.	A - Drumstick	Insects
2.	B - Coconut	Water
3.	C - Urena	Wind
4.	D - Xanthium	Explosion

1

2

3

4 Solution

The dispersal in drumstick is by wind. Seeds of urena and xanthium are dispersed by animals.

Question 2
1 / -0

In higher plants, usually the haploid (half) set of chromosomes are present in

A
shoot apex

B
endosperm

C
pollen

D
embryo

Solution

From the options given, only pollen represents the male gamete structure. Therefore, it will have half the number of chromosomes present in other cells.

Question 3

1 / -0

Select the incorrect match from the following:

	Type of Pollination	Agent of Pollination
1.	Hydrophily	Water
2.	Entomophily	Bats
3.	Zoophily	Animals
4.	Ornithophily	Birds

1

2

3

4 Solution

Entomophily or insect pollination is a form of pollination, whereby pollen of the plant is distributed by insects.

Question 4
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Refer to the diagram given below.

Bees hover over the flowers to collect nectar from them. During this, bees carry X from one flower to the other. Which part of the flower should the bees touch in order to collect X?

A
P

B
Q

C
R

D
S

Solution

While collecting nectar, the bees also carry pollen grains with them. Pollen grains are produced in the anther which is represented by Q.
Question 5
1 / -0

Seeds of a fruit contain ______ enclosed in a protective coat.

A
zygote

B
gamete

C
ovary

D
embryo

Solution

Seeds contain an embryonic plant enclosed in an outer covering.
Question 6
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What is the immediate step after fertilisation in reproduction of plants?

A
Division of zygote

B
Development of ovule coating

C
Formation of fruit

D
Formation of seed

Solution

After fertilisation, the zygote divides several times to form an embryo within the ovule. The ovule develops tough coating and is gradually converted into a seed. The ovary grows rapidly and ripens to form a fruit.
Question 7
1 / -0

Which of the following is a group of plants that are propagated through underground roots?

A
Bryophyllum and kalanchoe

B
Ginger, potato and onion

C
Pisita, chrysanthemum and pineapple

D
Sweet potato, asparagus and dahlia

Solution

Sweet potato, asparagus and dahlia is a group of plants which are propagated through underground roots.
Question 8
1 / -0

The branch of botany comprising the artificial cultivation of cells into mature fruit forming plants is known as

A
anatomy

B
morphology

C
physiology

D
tissue culture

Solution

The branch of botany comprising the artificial cultivation of cells into mature fruit forming plants is known as tissue culture. Single cells, plant cells without cell walls (protoplasts), pieces of leaves, stems or roots can often be used to generate a new plant on culture media given the required nutrients and plant hormones.
Question 9
1 / -0

Which of the following is formed by scion in grafting?

A
Shoot system

B
Root system

C
New plant

D
Hybrid plant

Solution

Shoot system is formed by scion in grafting, whereas root system is formed by stock. Grafting is a horticultural technique whereby tissues from one plant are inserted into those of another so that the two sets of vascular tissues may join together.
Question 10
1 / -0

Into which of the following parts of a plant does ovule integument get transformed?

A
Cotyledons

B
Fruit wall

C
Seed

D
Seed coat

Solution

Ovule integument gets transformed into seed coat. It is the outer protective covering of a seed. It is also called testa.
Question 11
1 / -0

When buried in soil, the cutting of which part of a rose plant gives rise to a new plant?

A
Root

B
Bud

C
Stem

D
Leaf

Solution

Rose can be vegetatively propagated through stem cuttings.

Question 12

1 / -0

The table given below lists some plants and their corresponding reproductive structures.

Plant	Reproductive Structure
Sweet potato	A
B	Adventitious buds
C	Spores

Identify A, B and C.

A - Root, B - Bryophyllum, C - Fern

A - Bryophyllum, B - Root, C - Fern

A - Fern, B - Bryophyllum, C - Root

A - Root, B - Fern, C - Bryophyllum

Solution

Sweet potato propagates through roots. In bryophyllum, the notches of the leaves bear small buds. It is through these buds that bryophyllum can be propagated. Ferns reproduce through spores.

Question 13
1 / -0

Read the statements given below regarding the process of budding.

(a) It is an asexual method of reproduction.
(b) The bud first develops to a certain size and then detaches from the mother cell.
(c) During budding, division of cytoplasm is followed by nuclear division.
(d) Budding is the most common method of reproduction in higher plants.

Identify the incorrect statements.

A
a and c

B
b and c

C
c and d

D
a and d

Solution

(c) - During budding, division of nucleus is followed by division of cytoplasm.
(d) - Budding is a method of reproduction in lower organisms.
Question 14
1 / -0

What is the mode of reproduction shown in the given figure called?

A
Budding

B
Spore formation

C
Fragmentation

D
Binary fission

Solution

The method of reproduction shown is fragmentation. In this, the plant parts that break apart from the main plant can grow into wholly new plants out of the broken fragments.
Question 15
1 / -0

Which one of the following is not an example or feature of asexual reproduction?

A
It is a fast method of reproduction.

B
It needs seeds for reproduction.

C
Buds in the yeast cell produce new cells.

D
Fungus reproduces by means of spore.

Solution

Asexual reproduction does not involve any gametes or seeds. The offsprings arise from a single organism.
Question 16
1 / -0

The propagation of plants by tissue culture technique is becoming popular because

A
the plants produced through this have uniform growth and productivity characteristics

B
most plants respond to this technique

C
variability can be increased

D
it is the most simple technique

Solution

The tissue culture technique is becoming popular these days because it can produce disease-free plants. The plants produced have uniform growth patterns. As these are clones of the parent plant, the productivity characteristics are also the same.
Question 17
1 / -0

Directions For Questions

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Directions: Observe the given picture of the leaf of fern tree and select the correct statement.

A
If leaf is fragmented, each part can give rise to a new plant.

B
Marginal buds are present throughout the leaf margin.

C
Roots arise from the axil of leaves.

D
Leaves bear clusters called sori.

Solution

Fern leaves bear clusters of sporangia called sori. They produce spores for asexual reproduction.
Question 18
1 / -0

Directions For Questions

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The given figure gives three characteristics of an organism X. Which of the following modes of reproduction is used by X?

A
Fragmentation

B
Budding

C
Fission

D
Sporulation

Solution

X is a single celled organism which reproduces only asexually and ferments carbohydrates, thus X is yeast. Yeast reproduces by a process called budding. Buds are the small bulb-like projections coming out from the yeast cell. The bud gradually grows and gets detached from the parent cell and forms a new yeast cell. The new yeast cell grows, matures and produces more yeast cells.
Question 19
1 / -0

Directions For Questions

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The given picture depicts the fertilisation of ovule. Which of the following numbers represent the structures which will become i) fruit and ii) seeds, respectively

A
(i) - 1, (ii) - 2

B
(i) - 2, (ii) - 1

C
(i) - 1, (ii) - 4

D
(i) - 3, (ii) - 2

Solution

1 is ovary which becomes fruit. 2 is ovule which becomes seed. 3 and 4 do not become any part of the fertilised ovule.
Question 20
1 / -0

Directions For Questions

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Directions: Refer to the given diagram and choose the incorrect option.

A
A : Have either stamen or pistil in a flower

B
B : Have both stamen and pistil in the same flower

C
B : Plants bear two kinds of flowers

D
A : Examples of plants producing A are corn, cucumber and papaya

Solution

B are bisexual flowers. Bisexual flowers have both stamen and pistil in the same flower. It does not mean that plant bears two kinds of flowers.

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Re-Attempt Weekly Quiz Competition

Reproduction in Plants Test - 4

Result

Reproduction in Plants Test - 4

Score

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Rank

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SHARING IS CARING

Question 1

1

2

3

4

Solution

Question 2

shoot apex

endosperm

pollen

embryo

Solution

Question 3

1

2

3

4

Solution

Question 4

P

Q

R

S

Solution

Question 5

zygote

gamete

ovary

embryo

Solution

Question 6

Division of zygote

Development of ovule coating

Formation of fruit

Formation of seed

Solution

Question 7

Bryophyllum and kalanchoe

Ginger, potato and onion

Pisita, chrysanthemum and pineapple

Sweet potato, asparagus and dahlia

Solution

Question 8

anatomy

morphology

physiology

tissue culture

Solution

Question 9

Shoot system

Root system

New plant

Hybrid plant

Solution

Question 10

Cotyledons

Fruit wall

Seed

Seed coat

Solution

Question 11

Root

Bud

Stem

Leaf

Solution

Question 12

A - Root, B - Bryophyllum, C - Fern

A - Bryophyllum, B - Root, C - Fern

A - Fern, B - Bryophyllum, C - Root

A - Root, B - Fern, C - Bryophyllum

Solution