Sexual Reproduction in Angiosperms

Q.

Is there any relationship between the number of ovules in an ovary and the number of seeds present in a fruit?

Q.

How are fruits and seeds formed?

Q. Assertion: Seeds are produced in plants as a result of sexual reproduction.

Reason: Seeds are not produced in potato and sugarcane.

Select the correct option with respect to the above description.

1. Both assertion and reason are correct and reason is the correct explanation of assertion.
2. Both assertion and reason are correct. But reason is not the correct explanation of assertion.
3. Assertion is incorrect but reason is correct.
4. Both assertion and reason are incorrect.

Q. Which of the following belong(s) to the family Poaceae?
Maize, Oat, Sorghum, Jowar, Barley, Bajra, Ragi, Blackgram, Pea, Green gram, Wheat, Rice

1. Oat, Sorghum Pea, Green gram
2. Barley, Oat, Sorghum, Jowar, Bajra,
3. Maize, Rice, Wheat, Barley, Oat, Sorghum
4. Bajra, Ragi, Maize , Rice, Jowar

Q.

Cardamom is known as the ___ of spices.

Q. Complete the flow chart given below.

X $\to$ Embryo $\to$ Y $\to$ New plant

1. X - Zygote, Y - Embryo sac
2. X - Zygote, Y - Seed
3. X - Endosperm, Y - Seed
4. X - Seed, Y - Zygote

Q. Formation and fusion of specialised reproductive cells called ___ occurs in ___ reproduction.

1. gametes, asexual
2. spores, sexual
3. gametes, sexual
4. buds, sexual

Q.

Ovary matures to form the __(i)_____ while ovule forms ____(ii)____.

1. (i) seed, (ii) fruit

2. (i) carpel, (ii) fruit

3. (i) fruit, (ii) seed

4. (i) seed, (ii) cotyledons

Q. Given are some events occurring in plant fertilisation.
A. Pollen lands on stigma.
B. Pollen tube bursts and releases the male gametes.
C. Pollen tube is formed.
D. Male gamete fuses with the egg.
Choose the option which represents the correct sequence of events?

1. A $\to$ B $\to$ C $\to$ D
2. A $\to$ C $\to$ B $\to$ D
3. A $\to$ D $\to$ B $\to$ C
4. A $\to$ D $\to$ C $\to$ B

Q.

From which part of a flower, an embryo, seeds and fruits are formed?

Q.

Fertilisation is the change of ovary into a fruit.

1. True
2. False

Q.

Seed is a modified ____________.

1. Style

2. Ovule

3. Carpel

4. Ovary

Q. Match the following.

$\begin{array}{cc}\text{Column A}& \text{Column B}\\ \left(a\right)\text{Endosperm}& \left(i\right)\text{Carpel}\\ \left(b\right)\text{Zygote}& \left(ii\right)\text{Haploid}\\ \left(c\right)\text{Stigma}& \left(iii\right)\text{Nutrition}\\ \left(d\right)\text{Gametes}& \left(iv\right)\text{Fertilisation}\end{array}$

1. a - i, b - iv, c -iii, d - ii
2. a - ii, b - iii, c - iv, d - i
3. a - iii, b - iv, c - i, d - ii
4. a - iv, b - iii, c - ii, d - i

Q.

Seeds are formed by the maturation of the

1. Ovary

2. Ovum

3. Ovule

4. All of these

Q.

A mature ovary develops into a __________.

Q. Find the correct order of events occuring during sexual reproduction in angiosperms.
i - Development
ii - Gamete formation and gamete transfer
iii - Fertilisation

1. i$\to$ii$\to$iii
2. i$\to$iii$\to$ii
3. ii$\to$iii$\to$i
4. iii$\to$ii$\to$i

Q. Select the correct statement with respect to parts labelled as X and Y.

1. After fertilisation, X dand Y dries and fall off.
2. After fertilisation, X develop into seed and Y develops into fruit.
3. After fertilisation, X develops into fruit and Y develops into seed.
4. After fertilisation, X develops into seed coat and Y develops into endosperm.

Q. Select the correct option with respect to the description mentioned below.
i. Seeds are small, hard and dry with or without fruit wall.
ii. They are generally described as cereals.
iii. Produced primarily by grasses belonging to the family Poaceae.
iii. It accounts for more than 85% of the total productivity in the world.

1. 
2. 
3. 
4. 

Q. Wheat is a

1. Cash crop
2. None of the above
3. Covered crop
4. Cereal crop

Q.

What is an ovule? [1 MARK]

Q. A flower will die without producing seeds if it is not pollinated.

1. True
2. False

Q.

Why ovary has stigma?

1. All of the above

2. To provide surface for pollination

3. To make flower attractive

4. To trap insects

Q. Assertion :The presence of vessels is a characteristic feature of Angiosperms. Reason: Vessels are spindle primitive conducting elements

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

Q. During a class lecture, Moshami was taught that flower is the reproductive part of the plant. After fertilisation, a new plant can grow from the fruit when it falls on the ground as it contains seeds.
Considering the above description, which of the following represents the correct sequence in the life cycle of plants?

1. Flowers $\to$ Fruits $\to$ Plant$\to$ Seed
2. Plant $\to$ Seeds $\to$ Flowers $\to$ Fruits
3. Seed $\to$ Plant $\to$ Flowers $\to$ Fruits
4. Fruits $\to$ Flowers $\to$ Seed $\to$ Plant

Q. Site of sexual reproduction in angiosperms is

1. fruit
2. flower
3. root
4. seed

Q. Which of the following is a millet?

1. Gynoecium - Ovary
2. Androecium - Anther
3. Gynoecium - Style
4. Androecium - Filament

Q. Select the correct option with respect to the sexual reproduction in flower.

1. Pollination $\to$ Male gamete reaches the ovule $\to$ Fertilisation $\to$ Fruit formation
2. Male gamete reaches the ovule $\to$ Pollination $\to$ Fruit formation $\to$ Fertilisation
3. Male gamete reaches the ovule $\to$ Pollination $\to$ Fertilisation $\to$ Fruit formation
4. Pollination $\to$ Fertilisation $\to$ Male gamete reaches the ovule $\to$ Fruit formation

Q. Which of the following family yields poor man's protein?

1. Mimosoidae
2. Cruciferae
3. Solanaceae
4. Papilionaceae

Q. Endosperm is the nutritive tissue which surrounds the

1. zygote
2. embryo
3. seed
4. fruit

Q. Large grasses cultivated for their nutritious seeds are called ________