EASY
Earn 100
An important characteristic of angiosperms is .
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Important Questions on Sexual Reproduction in Flowering Plants
EASY
Both male and female flowers are present on the same individual. Thus, they are
MEDIUM
Draw a neat diagram of LS of a flower.
EASY
Match the following:
| List - I | List - II | ||
| Isogamy | Vorticella | ||
| Anisogamy | Plasmodium | ||
| Hologamy | Monocystis | ||
| Conjugation | Amoeba | ||
| Trichonympha |
The correct match is
EASY
Organisms breed only once in their lifetime:
EASY
Which of the following statements is/are correct?
(i) Endothecium lies below epidermis.
(ii) Fusion of egg with male gamete is called apogamy.
(iii) Synergids are haploid.
(iv) The point at which funicle touches the ovule is raphe.
MEDIUM
Which of the following parts of the flower are incorrectly matched?
EASY
To produce 200 zygotes, how many meiotic divisions are required in flowering spermatophytes?
MEDIUM
Identify the respective ploidy of the following parts of flowering plants.
Ovary, Anther, Egg, Pollen, Male gamete and Zygote
MEDIUM
Represent the union of two sets by Venn diagram for each of the following.
is a prime number between and
is an odd number between and
HARD
How many of the following statements about reproduction in flowering plants is not correct?
a. As soon as meiosis begins, the plasmodesmata between PMC and tapetal cells are broken.
b. Bird pollinated flowers are usually colourless and odourless.
c. The ovules in the family Malvaceae are campylotropous.
d. The tapetal cells may divide by endomitosis and polyteny.
e. The wall surrounding the megaspore is generally cutinized.
f. In pollination, a functional pollen grain carrying the male gametes reaches the embryosac of an ovule.
MEDIUM
Papaya plant is dioecious.
EASY
Identify in the given diagram of of flower and choose the correct option.
EASY
Accessory floral organs in a flower are
EASY
All the following plants are biennials except
MEDIUM
Match the columns:
| Column I | Column II | ||
| a. | A most critical event in sexual reproduction | (i) | Gametogenesis |
| b. | The vital link that ensures continuity of species | (ii) | Gamete transfer |
| c. | The progenitor of next generation | (iii) | Zygote |
| d. | Plants with both male and female reproductive structures present in the same | (iv) | Fertilization |
| (v) | Meiocyte | ||
| (vi) | Embryo | ||
| (vii) | Monoecious | ||
| (viii) | Dioecious |
MEDIUM
Rose plants produce large, attractive bisexual flowers, but they seldom produce fruits. On the other hand, a tomato plant produces plenty of fruits though they have small flowers. Analyse the reasons for the failure of fruit formation in rose.
MEDIUM
Among the terms listed below, those that of are not technically correct names for a floral whorl are
A. Androecium
B. Carpel
C. Corolla
D. Sepal
EASY
Rakesh asked the following question from his father and requested him to answer. What is floriculture? Anticipate his answer.
EASY
The plant body of angiosperm is
HARD
Study the following statements and select the correct option.
(i) Tapetum nourishes the developing pollen grains.
(ii) Hilum represents the junction between ovule and funicle.
(iii) In aquatic plants such as water hyacinth and water lily, pollination occurs by water.
(iv) The primary endosperm nucleus is triploid.
