Structural Organisation – Morphology of Flowering Plants Quiz - ICSE Class 11 Biology

Free practice quiz: Structural Organisation – Morphology of Flowering Plants (ICSE Class 11 Biology). 43 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

Sample questions

1. Which of the following floral whorls is directly involved in the formation of the fruit?

   1. Calyx
   2. Corolla
   3. Androecium
   4. Gynoecium
   Show answer

   Answer: D. Gynoecium

   The gynoecium, which comprises the pistil (stigma, style, and ovary), is the female reproductive part of a flower. After fertilization, the ovary develops into the fruit.

2. Inflorescence is the arrangement of:

   1. Roots on the stem
   2. Leaves on the stem
   3. Flowers on the peduncle
   4. Branches on the trunk
   Show answer

   Answer: C. Flowers on the peduncle

   Inflorescence describes the specific arrangement of flowers on the floral axis (peduncle) of a plant. It dictates how flowers are clustered or displayed.

3. A flower that has all four floral whorls (calyx, corolla, androecium, gynoecium) is described as:

   1. Incomplete
   2. Complete
   3. Perfect
   4. Imperfect
   Show answer

   Answer: B. Complete

   A complete flower contains all four essential floral organs: calyx (sepals), corolla (petals), androecium (stamens), and gynoecium (pistil).

4. The modification of a leaf into a sharp, pointed structure is called:

   1. Tendril
   2. Spine
   3. Bract
   4. Phyllode
   Show answer

   Answer: B. Spine

   Leaf spines are modified leaves that are sharp and pointed, often serving as a defense mechanism against herbivores. Cacti are a prime example.

5. What is the structure that bears the ovules within the ovary?

   1. Receptacle
   2. Pedicel
   3. Placenta
   4. Style
   Show answer

   Answer: C. Placenta

   The placenta is the part of the ovary to which the ovules are attached. The arrangement of placentas and ovules within the ovary is known as placentation.

More quizzes

• Cell Structure and Function – Cell Cycle & Cell Division
• Cell Structure and Function – Cell Theory & Organelles
• Diversity of Living Organisms – Animal Kingdom
• Diversity of Living Organisms – Plant Kingdom
• Human Physiology – Breathing and Exchange of Gases
• Human Physiology – Chemical Coordination and Integration

Browse all Biology quizzes