NECO 2002 Biology · Question 18
An inflorescence is a
Options
- A.group of flowers borne on the same stalk
- B.group of flowers born on different stalks
- C.flower pollinated by wind
- D.many flowers on the same plant
- E.plants which have both male and female reproductive organs
Answer: A. group of flowers borne on the same stalk
Explanation written with AI and checked against the answer key
1. Analyze the question The question asks for the definition of an inflorescence, a basic term in plant reproduction and morphology.
2. Explain the concept "Inflorescence" describes how flowers are arranged on a plant. Some plants bear a single flower on a stalk (e.g., hibiscus, tulip). Others bear a cluster of flowers on a common axis or stalk (the peduncle). That cluster is called an inflorescence.
Common types include:
- Raceme (e.g., Crotalaria): flowers on short stalks along an unbranched axis
- Spike (e.g., Achyranthes): flowers attached directly to the axis
- Umbel (e.g., onion): flower stalks arise from one point
- Capitulum (e.g., sunflower, Tridax, Emilia): many tiny florets packed on a flat head
- Panicle (e.g., oil palm, mango): a branched raceme
3. Work through the options
- A. Group of flowers borne on the same stalk. Correct. This is the standard textbook definition: a cluster of flowers on one main axis.
- B. Group of flowers borne on different stalks. Wrong. The flowers share a common stalk or axis.
- C. Flower pollinated by wind. Wrong. This describes anemophilous flowers, which have nothing to do with the definition.
- D. Many flowers on the same plant. Wrong. A plant can have many flowers scattered across different branches without forming an inflorescence. Every flower in an inflorescence is on the same stalk system, which is more specific.
- E. Plants with both male and female reproductive organs. Wrong. This describes monoecious or hermaphrodite (bisexual) plants.
4. Answer The correct option is A.
5. Exam tip Remember: "In-florescence = a cluster of flowers on one stalk." Think of a sunflower head or a bunch of flowers on a single stem. If an option mentions one common stalk or axis, it is usually the right one. Be careful not to confuse it with "many flowers on the same plant" (option D), which is a common trap.
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