Flowers

Q. ______ placentation is found in sunflower.

1. Basal
2. Marginal
3. Axile
4. Parietal

Q. Which of the statements best describe polyandrous flowers?

1. Filaments are united in one group.
2. Filaments are united in two groups.
3. Filaments are free from each other.
4. Filaments are united in multiple groups.

Q.

Which of the following is in correct order?

1. Fertilization - pollination - germination - seed dispersal

2. Pollination - germination - fertilization - seed dispersal

3. Germination - pollination - fertilization - seed dispersal

4. Germination - fertilization - seed dispersal - pollination

Q.

Difference between sepaloid and petaloid

Q.

Self-pollination takes place in two ways, one of them is when anthers and stigma mature at the same time. This condition is called _________.

1. Homogamy

2. Dichogamy

3. Cleistogamy

4. Heterogamy

Q. ______ is a sessile flower.

1. Rose
2. Saffron
3. Pea
4. Hibiscus

Q.

A flower which contains both stamens and carpels is called ________ flower.

1. Imperfect flower

2. Perfect flower

3. Staminate flower

4. Pistillate flower

Q. ______ is a bisexual flower.

1. Maize
2. Mulberry
3. Tulip
4. Cucumber

Q.

A flower in which both male and female reproductive organs are lacking is called as a:

1. Staminate flower

2. Pistillate flower

3. Neuter flower

4. hermaphrodite flower

Q. When the sepals are free, the condition is called as polysepalous. State true or false.

1. True
2. False

Q. Petaloid perianth is present in ________.

1. water lily
2. gulmohar
3. datura
4. amborella

Q.

Which of the following phylum includes flowering plants?

1. Angiosperms

2. Bryophyta

3. Gymnosperms

4. Pteridophytes

Q.

Both autogamy and geitonogamy are prevented in:

1. Castor

2. Maize

3. Papaya

4. Cucumber

Q. Funnel shape of petals is shown by ______ flower.

1. Rose
2. Marigold
3. Datura
4. Water lily

Q. A flower in which ovary occupies the lowest position and all the other whorls arise above it, is called a/an ___ flower.

Q.

The flowers of China rose and brinjal are called__i__flowers, wherein the ovary is said to be__ii__

The information in which alternative completes the given statement?

1. 

2. 

3. 

4. 

Q.

Sessile flowers do not have __________.

1. stamens
2. ovary
3. pedicel
4. sepals

Q. A flower where only one essential whorl is present as stamens is called _________.

1. Staminate flower
2. Pistillate flower
3. Unisexual flower
4. Bisexual flower

Q.

________ is the transfer of pollen grains from the anther to the stigma of a flower.

1. Fertilization

2. Diffusion

3. Absorption

4. Pollination

Q.

Bougainvillea is an example of:

1. an incomplete flower

2. a flower having a large nectary

3. water pollinated flower

4. a flower with large colourful bracts

Q. Which of the following refers to sessile flowers?

1. Bear a pedicel
2. Bear fused sepals
3. Lack a pedicel
4. Lack episepals

Q.

Question 49
Fill in the boxes given in the figure with appropriate characteristics/plant group (s)

Q. ___________ is an example of a gamosepalous flower.

1. Periwinkle
2. Magnolia
3. Rose
4. Mustard

Q.

Pollen grains are found in ______.

1. ovary

2. pollen sac

3. ovule

4. egg cell

Q.

Which one is the closest to corymb?

Q.

The thick vein in the middle of each leaf is called the _________.

1. Pistil

2. Midrib

3. Lamina

4. Ovule

Q.

State the advantages of sexual reproduction.

Q. In gymnosperms, .......... lacks .......... canal cells

Q.

Gymnosperms are the first plants to have a well-differentiated reproductive tissue.

1. True

2. False

Q. Match the items in column I with those in column II.

1. A - 1, B - 9, C - 8, D - 5, E - 2, F - 3, G - 6, H - 7, I - 4
2. A - 1, B - 9, C - 8, D - 4, E - 2, F - 3, G - 6, H - 7, I - 5
3. A - 1, B - 9, C - 8, D - 4, E - 2, F - 3, G - 7, H - 6, I - 5
4. A - 1, B - 9, C - 8, D - 4, E - 2, F - 6, G - 7, H - 3, I - 5