How do Organisms Reproduce Test

Result

How do Organisms Reproduce Test - 27

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Weekly Quiz Competition

Question 1
1 / -0

Bud is formed in which of the following organism?

A
Protozoa

B
Bread mould

C
Yeast

D
Algae
Solution
- Budding involves the development of a new organism from an outgrowth or bud.
- Yeast reproduces by budding.
- In yeast, small buds are produced that remain attached initially to the parent cell, but, eventually, get separated and develop into a new individual.
- So, the correct answer is 'Yeast'.
Question 2
1 / -0

The ovary of a flower contains small structures called:

A
Male gamete

B
Ovules

C
Pollens

D
Both B and C
Solution
- The ovules are small structures present in the ovary. The ovule contains the female gamete.
- Pollen contains male gametes and is formed inside the anther.
So, the correct option is B.
Question 3
1 / -0

The classification of the flowers as unisexual and bisexual is on the basis of:

A
Presence of flowers at the tip of plant

B
Presence of anther and filament of plant

C
Presence of stamen and pistil in the flower

D
Both A and C
Solution
- A flower typically consists of petals, sepals, stamen, and pistil (carpel).
- Stamen is the male reproductive part of a flower and the pistil is the female reproductive part of a flower.
- Some flowers may carry both stamen and pistil in the same flower and are called bisexual flowers (as both the sexes are present in the same flower) and some flowers may have separate male and female flowers and are called unisexual flowers.
- The male flower has only the stamen and no pistil while the female flower has only the pistil and no stamen.
So, the correct answer is option C,
Question 4
1 / -0

Seed develops from

A
Embryo

B
Ovule

C
Embryo sac

D
Ovary

Solution

After fertilization,
A. The zygote develops into an embryo.
B. The ovule develops into a seed.
C. The triploid primary endosperm nucleus forms the endosperm.
D. The ovary is transformed into a fruit.
So, the correct answer is 'Ovule'.
Question 5
1 / -0

The part of plant used for asexual reproduction is called:

A
Reproductive part

B
Vegetative part

C
Seeds

D
Flowers

Solution

Most plants have roots, stems and leaves which are called the vegetative parts of a plant. Vegetative propagation is a type of asexual reproduction in which new plants are produced from the vegetative parts of an old plant, i.e. leaves, stem and roots.
Examples: Bryophyllum uses buds present in the margin of leaves for vegetative propagation; roots in plants like sweet potato and dahlia are used for vegetative propagation, etc.
So, the answer is B.
Question 6
1 / -0

If Hydra is broken into pieces, _________.

A
Hydra will die.

B
Hydra will undergo sexual reproduction.

C
Some fragments will form complete Hydra.

D
Every fragment will, grow into a complete Hydra.

Solution

The reconstruction of an entire animal from a small fragment by reorganizing the existing cells happens during regeneration. The regenerated animal is far smaller than the original one after the completion of the process. It grows to attain the normal size. eg: Hydra.
So, the correct answer is option D.
Question 7
1 / -0

In females, puberty marks the:

A
Beginning of reproductive phase

B
Cessation of menstruation

C
Onset of hairfall

D
Both B and C

Solution

Puberty is the period when adolescents reach sexual maturity. It marks the beginning of reproductive life in humans. In males, puberty begins between the ages of 12-15 while in females it happens between the ages of 11-14. This is also marked by the beginning of the release of eggs (female gametes) in females and the production of sperms (male gametes) in males.
So the correct answer is option A.
Question 8
1 / -0

The reproductive part of a plant is:

A
Leaf

B
Stem

C
Root

D
Flower

Solution

Flower is the reproductive part of the plant. Pistil, stamens, petals and sepals are the four main parts of the flower. Among this, pistil is the female reproductive part and it is made up of stigma, style and ovary. Stamen is the male reproductive part and it consists of filament and anther.
So, the correct answer is option D.
Question 9
1 / -0

A complete plant can be obtained from the leaf of:

A
Potato

B
Money plant

C
Mint plant

D
Bryophyllum

Solution

Vegetative propagation is a method of asexual reproduction in which new plant is produced from vegetative parts like roots, stems, leaves. Bryophyllum plant shows vegetative reproduction. A complete plant can be obtained from the leaf of Bryophyllum via vegetative reproduction. The leaf of it is broad and has notches at its margin. A bud arises at the notches. This bud, when placed in soil, develops into a new plant. Thus, the correct answer is option D.
Question 10
1 / -0

Name of plant Vegetative parts from which plant grows
A) Money plant 1) Root
B) Ginger 2) Stem
C) Sweet potato 3) Leaf
D) Bryophyllum 4) Underground stem

A
A - Stem, B - Root, C - Underground stem, D - Leaf

B
A - Stem, B - Underground stem, C - Root, D - Leaf

C
A - Root, B - Underground stem, C - Stem, D - Leaf

D
A - Leaf, B - Stem, C - Underground stem, D - Root

Solution

Name of plant A vegetative part from which plant grows
A) Money plant 2) Stem
B) Ginger 4) Underground stem
C) Sweet potato 1) Root
D) Bryophyllum 3) Leaf
A. Money plant is vegetatively propagated by stem cutting. This is done by using a piece of its stem that contains at least one leaf on it.
B. Ginger is vegetatively propagated through its underground stem.
C. Sweet potato is vegetatively propagated by its roots. The roots of sweet potatoes have adventitious buds that develop into new plants by breaking off from the root.
D. Bryophyllum bears leaves that have buds on their margins. These buds give rise to new plants.
So, the correct answer is option B.

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Re-Attempt Weekly Quiz Competition

Name of plant	Vegetative parts from which plant grows
A) Money plant	1) Root
B) Ginger	2) Stem
C) Sweet potato	3) Leaf
D) Bryophyllum	4) Underground stem

Name of plant	A vegetative part from which plant grows
A) Money plant	2) Stem
B) Ginger	4) Underground stem
C) Sweet potato	1) Root
D) Bryophyllum	3) Leaf

How do Organisms Reproduce Test - 27

Result

How do Organisms Reproduce Test - 27

Score

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Rank

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SHARING IS CARING

Question 1

Protozoa

Bread mould

Yeast

Algae

Solution

Question 2

Male gamete

Ovules

Pollens

Both B and C

Solution

Question 3

Presence of flowers at the tip of plant

Presence of anther and filament of plant

Presence of stamen and pistil in the flower

Both A and C

Solution

Question 4

Embryo

Ovule

Embryo sac

Ovary

Solution

Question 5

Reproductive part

Vegetative part

Seeds

Flowers

Solution

Question 6

Hydra will die.

Hydra will undergo sexual reproduction.

Some fragments will form complete Hydra.

Every fragment will, grow into a complete Hydra.

Solution

Question 7

Beginning of reproductive phase

Cessation of menstruation

Onset of hairfall

Both B and C

Solution

Question 8

Leaf

Stem

Root

Flower

Solution

Question 9

Potato

Money plant

Mint plant

Bryophyllum

Solution

Question 10

A - Stem, B - Root, C - Underground stem, D - Leaf

A - Stem, B - Underground stem, C - Root, D - Leaf

A - Root, B - Underground stem, C - Stem, D - Leaf

A - Leaf, B - Stem, C - Underground stem, D - Root

Solution

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