• Morphology of Flowering Plants - XI
Back
0

Morphology of Flowering Plants - XI

Description: Morphology of Flowering Plants
Number of Questions: 18
Created by:
Tags: Morphology of Flowering Plants The root stem leaf inflorescence flower fruit seed Types and Regions of Root Roots Stem Leaf Types of Leaf and their Venation Structure of a Leaf Leaf Phyllotaxy Flower Classification of Flowers Position of Gynoecium on Thalamus
Start the Quiz
Attempted 0/18 Correct 0 Score 0
‹
›

In which of the following plants do the roots originate from the base of the stem and constitute the fibrous root system?

  1. Banyan tree

  2. Monstera

  3. Mustard plant

  4. Grass

  5. Wheat plant

Show answer
Correct Option: E
Explanation:

This is the correct option. In wheat plant, the roots originate from the base of the stem and constitute the fibrous root system.

Which of the following is not a function of the root system?

  1. Absorption of water from the soil

  2. Providing a proper anchorage to the plant parts

  3. Absorption of minerals from the air

  4. Storing reserve food material

  5. Synthesis of plant growth regulators

Show answer
Correct Option: C
Explanation:

This is the correct option as this is not a function of the root system. The function of roots is the absorption of minerals from the soil, and not from air.

In which of the following is a bud not present?

a. In the axil of petiole of simple leaves b. In the axil of petiole of compound leaves c. In the axil of leaflets of compound leaves

  1. Only a

  2. Only a and b

  3. Only b

  4. Only b and c

  5. Only c

Show answer
Correct Option: E
Explanation:

This is the correct option. A bud is not present in the axil of leaflets of the compound leaf.

Which of the following are the accessory organs that are arranged successively on the swollen end of stalk?

a. Calyx b. Corolla c. Androecium d. Gynocium

  1. Only a and b

  2. Only a and c

  3. Only a and d

  4. Only c and d

  5. Only b and c

Show answer
Correct Option: A
Explanation:

This is the correct option. Calyx and corolla are accessory organs that are arranged successively on the swollen end of stalk.

Which of the following flowers can be divided into two equal radial halves in any radial plane passing through the centre?

  1. Pea

  2. Gulmohur

  3. Bean

  4. Cassia

  5. Datura

Show answer
Correct Option: E
Explanation:

This is the correct option. The flower of datura can be divided into two equal radial halves in any radial plane passing through the centre. Its flower is called actinomorphic.

Underground stems of which of the following plants are modified to store food in them, which, acting as organs of perennation, tide over conditions unfavourable for growth?

a. Opuntia b. Euphorbia c. Potato d. Colocasia

  1. Only a and b

  2. Only a and c

  3. Only c and d

  4. Only a and d

  5. Only b and c

Show answer
Correct Option: C
Explanation:

This is the correct option. Underground stems of Potato and Colocasia are modified to store food in them. They also act as organs of perennation to tide over conditions unfavourable for growth.

Which of the following statements is/are false?

a. Androecium is the female reproductive part of the flower and is made up of one or more carpels. b. When stamens are attached to the petals, they are epipetalous. c. A carpel consists of three parts namely stigma, style and ovary.

  1. Only a

  2. Only a and b

  3. Only b

  4. Only b and c

  5. Only c

Show answer
Correct Option: A
Explanation:

This is the correct option as this statement is false. Gynoecium is the female reproductive part of the flower and is made up of one or more carpels.

A seed is made up of a seed coat and an embryo, which is further made of one or two cotyledons. Which of the following have two cotyledons?

a. Wheat b. Maize c. Gram d. Pea

  1. Only a and b

  2. Only a and c

  3. Only a and d

  4. Only b and c

  5. Only c and d

Show answer
Correct Option: E
Explanation:

This is the correct option. The seeds of gram and pea have two cotyledons.

Which of the following statements is/are false about the leaf?

a. The leaf develops at the node and bears a bud in its axil. b. The leaf is the most important vegetative organ for photosynthesis. c. Pulvinus provides rigidity to the leaf blade and acts as a channel for transporting water, minerals and food materials.

  1. Only a

  2. Only a and b

  3. Only b

  4. Only b and c

  5. Only c

Show answer
Correct Option: E
Explanation:

This is the correct option as this statement is false. Veins provide rigidity to the leaf blade and act as channels for transporting water, minerals and food materials.

The stems spread out branches bearing leaves, flowers and fruits. Which of the following is not a feature of the stem?

  1. The stem develops from the direct elongation of the radicle of a germinating seed.

  2. The stem is the ascending part of the axis.

  3. The stem is responsible for bearing buds.

  4. The stem is responsible for bearing nodes and internodes.

  5. When young, the stem is generally green.

Show answer
Correct Option: A
Explanation:

This is the correct option as this is not a feature of the stem. The stem develops from the plumule of the embryo of a germinating seed.

Match the following:

 
a. Leaf base 1. It is the green expanded part of the leaf with veins and veinlets.
b. Petiole 2. It helps holding the blade to light.
c. Lamina 3. It helps attaching the leaf to the stem.

  1. a - 3, b - 2, c - 1

  2. a - 3, b - 1, c - 2

  3. a - 2, b - 1, c - 3

  4. a - 2, b - 3, c - 1

  5. a - 1, b - 2, c - 3

Show answer
Correct Option: A
Explanation:

This is the correct option. Leaf base helps attaching the leaf to the stem. Petiole helps holding the blade to light. Lamina is the green expanded part of the leaf with veins and veinlets.

The arrangement of ovules within the ovary is known as placentation. Which of the following has marginal placentation?

  1. China rose

  2. Argemone

  3. Pea

  4. Dianthus

  5. Sunflower

Show answer
Correct Option: C
Explanation:

This is the correct option. Pea has marginal placentation. In this, the placenta forms a ridge along the ventral suture of the ovary and the ovules are borne on this ridge forming two rows.

Match the following:

 
a. Alternate type of phyllotaxy 1. In this, two leaves arise as a pair at each node and lie opposite to each other.
b. Opposite type of phyllotaxy 2. In this, a single leaf arises at each node in alternate manner.
c. Whorled type of phyllotaxy 3. In this, more than two leaves arise at a node and form a whorl.

  1. a - 2, b - 3, c - 1

  2. a - 3, b - 2, c - 1

  3. a - 1, b - 2, c - 3

  4. a - 2, b - 1, c - 3

  5. a - 3, b - 1, c - 2

Show answer
Correct Option: D
Explanation:

This is the correct option. In alternate type of phyllotaxy, a single leaf arises at each node in alternate manner. In opposite type of phyllotaxy, two leaves arise as a pair at each node and lie opposite to each other. In whorled type of phyllotaxy, more than two leaves arise at a node and form a whorl.

Which of the following plants belongs to the family Fabaceae?

  1. Belladonna

  2. Aloe

  3. Petunia

  4. Sesbania

  5. Gloriosa

Show answer
Correct Option: D
Explanation:

This is the correct option. Sesbania belongs to the family Fabaceae. It is a source of fodder.

In a hypogynous flower, the gynoecium occupies the highest position and the ovary is said to be superior. Which of the following is a hypogynous flower?

  1. Plum

  2. Brinjal

  3. Guava

  4. Peach

  5. Cucumber

Show answer
Correct Option: B
Explanation:

This is the correct option. The flower of brinjal is a hypogynous flower as in it, the gynoecium occupies the highest position, while the other parts are situated below it and the ovary is said to be superior.

Which of the following plants have supporting roots coming out of the lower nodes of the stem?

a. Rhizophora b. Banyan tree c. Maize d. Sugarcane

  1. Only a and b

  2. Only a and c

  3. Only a and d

  4. Only c and d

  5. Only b and c

Show answer
Correct Option: D
Explanation:

This is the correct option. Maize and sugarcane have supporting roots coming out of the lower nodes of the stem. This type of roots are called stilt roots.

Match the following:

 
a. Fibrous root system 1. It is the root system in which the roots arise from parts of the plant other than the radicle.
b. Tap root system 2. It is the root system formed by thin, moderately branching roots growing from the stem.
c. Adventitious root system 3. It is the root system in which a single dominant root develops from the radicle of the embryo vertically underground the soil.

  1. a - 2, b - 1, c - 3

  2. a - 2, b - 3, c - 1

  3. a - 3, b - 2, c - 1

  4. a - 1, b - 2, c - 3

  5. a - 1, b - 3, c - 2

Show answer
Correct Option: B
Explanation:

This is the correct option. Fibrous root system is the root system formed by thin, moderately branching roots growing from the stem. Tap root system is the root system in which a single dominant root develops from the radicle of the embryo vertically underground the soil. Adventitious root system is the root system in which the roots arise from parts of the plant other than the radicle.

Which of the following are dicotyledonous plants and possess reticulate venation?

a. Hibiscus b. Banana c. Redgram d. Wheat

  1. Only a and b

  2. Only a and c

  3. Only a and d

  4. Only b and d

  5. Only b and c

Show answer
Correct Option: B
Explanation:

This is the correct option. Hibiscus and Redgram are dicotyledonous plants that possess reticulate venation.

- Hide questions
ADVERTISEMENT

Find more quizzes from top tags

general knowledge
3615 Quizzes
119858 Questions
 technology
307 Quizzes
36705 Questions
 sports
963 Quizzes
19148 Questions
 history
1187 Quizzes
13475 Questions
 physics
598 Quizzes
13441 Questions
 biology
1160 Quizzes
12174 Questions
 science & technology
551 Quizzes
11015 Questions
 chemistry
490 Quizzes
9892 Questions
 maths
518 Quizzes
9324 Questions
 softskills
0 Quizzes
7131 Questions