MEDIUM
Earn 100

Draw the picture of a bud and its flower in your notebook.        

Important Questions on The Valley of Flowers

MEDIUM

Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R):

Assertion (A): A flower is defined as modified shoot wherein the shoot apical meristem changes to floral meristem.

Reason (R): Internode of the shoot gets condensed to produce different floral appendages laterally at successive nodes instead of leaves.

In the light of the above statements, choose the correct answer from the options given below:

EASY
Sketch and label "structure of a pea flower'
HARD
In the ABC model of floral organ determination in Arabidopsis, the expression of class Agenes alone determines the development of sepals, expression of class A genes along with class B genes determines petal formation, expression of class B genes along with class C genes determines the formation of stamens and expression of class genes alone determines carpel formation. Loss of class B gene function would result in flowers with whorls in the following order (from outer whorl to inner whorl)
HARD
Identify the plant's families and arrange the families based on the numerical numbers in ascending order.
Phaseolus, Smilax, Dracaena, Colchicum, Cajanus, Withania, Atropa, Datura, Ruscus, Capsicum, Derris, Cesturm.
EASY
What is polygamous? Give an example.
MEDIUM
Match the following lists.
  List-I   List-II   List-III
A China Rose i Acropetal succession I Branched peduncle
B Colocasia ii Mesocarp is fleshy II Hypogynous
C Panicle iii Alternative phyllotaxy III Epigynous
D Cucumber iv Neuter flowers IV Corm

The correct match is:

MEDIUM
Which among the following statements are true for unisexual flowers?
I. They possess both stamen and pistil.
II. They possess either stamen or pistil.
III. They exhibit cross pollination.
IV. Unisexual flower possessing only stamens cannot produce fruits.
MEDIUM
Mention the function of the flower.
MEDIUM
Examine a few flowers in any Cucurbit plant and try to identify the staminate and pistillate flowers. Do you know any other plant that bears unisexual flowers?
MEDIUM

A dicotyledonous plant bears flowers but never produces fruits and seeds. The most probable cause for the above situation is

MEDIUM
Which one of the following statements is correct?
EASY
When the flower has all the four whorls, it is called _______ flower
MEDIUM
Inside the petals, in the middle of the flower, can you see some thin structures? Write its colour?
MEDIUM
Column I Column II
A. Accessory organs 1. Calyx
2. Corolla
B. Reproductive organs 3. Androecium
4. Gynoecium
HARD
What is a flower? Describe the parts of a typical angiosperm flower.
MEDIUM

Represent the union of two sets by Venn diagram for each of the following.

X={x | x is a prime number between 80 and 100}

Y={y | y is an odd number between 90 and 100}

EASY

What does the flower look like – a bell, a bowl, a brush or anything else?

 

MEDIUM
What is the importance of studying morphology?
EASY

What is the difference between a bisexual and a unisexual flower?