| List-I | List-II |
| A. Pteris - Spermatozoids | 1. Zooidogamy |
| B. Cycas- Male gametes | 2.Malic acid |
| C. Funaria- Antherozoids | 3.Oogamy |
| D. Spirogyra- Aplanogametes | 4.Sucrose |
| 5.Physiological anisogamy |
A) A-1 B-5 C-4 D-3
B) A-3 B-2 C-4 D-5
C) A-2 B-5 C-4 D-1
D) A-2 B-4 C-3 D-5
Correct Answer: D
Solution :
Malic acid secreted by archegonia of Pteris attracts the spermatozoids during fertilization. Archegonia of Cycas secretes sucrose in dissolved form which attracts the male gametes during fertilization. Oogamy occurs in Funaria and in Spirogyra, the aplanogametes are of + strain i.e., male and - strain i.e., female and thus, they show physiological anisogamy.
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