NECO 2008 Biology · Question 44
The following attract insects to flowers for pollination EXCEPT
Options
- A.brightly coloured petals
- B.broad and grooved corolla
- C.presence of anther with light pollen grains
- D.presence of nectar
- E.presence of sweet scent
Answer: C. presence of anther with light pollen grains
Explanation written with AI and checked against the answer key
Analyze the question: We are asked which feature does NOT attract insects to flowers for pollination.
Concept: Insect-pollinated (entomophilous) flowers advertise themselves and offer rewards to insects. Typical features:
- Large, brightly coloured petals (visual attraction)
- Sweet scent (smell attraction)
- Nectar (food reward)
- Sticky, rough, or spiny pollen grains that cling to the insect's body
- Often a broad or landing-platform corolla, so insects can perch
Wind-pollinated (anemophilous) flowers have the opposite features:
- Small, dull petals, or none
- No scent or nectar
- Light, smooth, dry pollen grains that are easily carried by wind
- Large, feathery stigmas and anthers that dangle outside the flower
Go through the options:
- A. Brightly coloured petals: attract insects visually. ✔ (attractant)
- B. Broad and grooved corolla: gives a landing platform and guides insects to the nectar. ✔ (attractant)
- C. Anther with light pollen grains: light pollen is a wind-pollination adaptation. Insects don't need it, and insect-pollinated flowers have heavier, sticky or spiny pollen. ✘ (not an attractant)
- D. Nectar: the food reward for insects. ✔ (attractant)
- E. Sweet scent: attracts insects by smell. ✔ (attractant)
Tip: Remember "Wind = Light, Insects = Lure." Light, dry pollen belongs to wind-pollinated flowers. Colour, scent, nectar, and sticky pollen belong to insect-pollinated ones. In "EXCEPT" questions, look for the option that fits the opposite pollination type.
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