AIIMS 2019 Biology Phaeophyceae MCQ Question
Identify the diagram
(a)- Laminaria, (b)- Porphyra, (c)- Fucus, (d)- Polysiphonia
(a)- Polysiphonia, (b)- Laminaria, (c)- Porphyra, (d)- Fucus
(a)- Fucus, (b)- Porphyra, (c)- Laminaria, (d)- Polysiphonia
(a)- Fucus, (b)- Laminaria, (c)- Porphyra, (d)- Polysiphonia
Correct Answer
Detailed Explanation
Option A accurately represents the structure of a water molecule (H₂O), which consists of two hydrogen atoms covalently bonded to one oxygen atom, forming a bent molecular geometry due to the presence of lone pairs on the oxygen atom. In contrast, options B, C, and D depict different molecular structures, such as carbon dioxide (CO₂) or methane (CH₄), which do not exhibit the same bonding arrangement or molecular shape as H₂O. Understanding these molecular geometries is crucial for grasping concepts related to polarity, hydrogen bonding, and the unique properties of water that are essential for biological systems.
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