Chapter 4: Reproductive Morphology — Online MCQ Test
BOTANY · CLASS 11th · Tamil Nadu State Board
Practice Chapter 4: Reproductive Morphology with a free chapter-wise online MCQ test.
This chapter covers: Focusing on plant reproduction this chapter details inflorescence types flower anatomy floral diagrams and floral formulas. Students examine estivation types fruit classifications....
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Chapter 4: Reproductive Morphology — Important Questions & Answers
In which type of inflorescence are the flowers borne on a single elongated main axis in a sequence from base to apex?
- A. Raceme
- B. Umbel
- C. Capitulum
- D. Spikelet
Answer: A. Raceme
In a raceme, the main axis continues to grow and bears flowers on pedicels in acropetal succession. This is a basic racemose inflorescence.
In a raceme, the main axis continues to grow and bears flowers on pedicels in acropetal succession. This is a basic racemose inflorescence.
Which of the following is a complete flower?
- A. Flower with only stamens
- B. Flower with sepals, petals, stamens and carpels
- C. Flower with only petals and stamens
- D. Flower with only sepals and carpels
Answer: B. Flower with sepals, petals, stamens and carpels
A complete flower possesses all four floral whorls: calyx, corolla, androecium and gynoecium.
A complete flower possesses all four floral whorls: calyx, corolla, androecium and gynoecium.
Which inflorescence is characteristic of sunflower?
- A. Spike
- B. Cyme
- C. Capitulum
- D. Panicle
Answer: C. Capitulum
Sunflower shows a capitulum or head inflorescence, where many small florets are arranged on a flattened receptacle.
Sunflower shows a capitulum or head inflorescence, where many small florets are arranged on a flattened receptacle.
Which of the following is NOT a racemose inflorescence?
- A. Raceme
- B. Spike
- C. Cyme
- D. Umbel
Answer: C. Cyme
Cyme is a cymose inflorescence, where the main axis ends in a flower. Raceme, spike and umbel are racemose types.
Cyme is a cymose inflorescence, where the main axis ends in a flower. Raceme, spike and umbel are racemose types.
A student observes a fruit that develops from a single flower having many free carpels. Which term is most accurate?
- A. Simple fruit
- B. Aggregate fruit
- C. Multiple fruit
- D. Dehiscent fruit
Answer: B. Aggregate fruit
Aggregate fruits develop from a single flower with many free carpels, and each carpel forms a small fruitlet. This differs from multiple fruits, which develop from many flowers.
Aggregate fruits develop from a single flower with many free carpels, and each carpel forms a small fruitlet. This differs from multiple fruits, which develop from many flowers.