Question

The chloroplast of Oedogonium is 
1. Discoid
2. Reticulate
3. Stellate
4. Parietal

Answer 1

Correct Answer - Option 2 : Reticulate

Concept-

• Plastids are found in plants and euglenoids.
• Based on the type of pigments plastids can be classified into chloroplasts, chromoplasts, and leucoplasts. 
• The chloroplasts contain chlorophyll and carotenoid pigments which are responsible for trapping light energy essential for photosynthesis.
• The chloroplasts are double membrane-bound.
• The majority of the chloroplasts of the green plants are found in the mesophyll cells of the leaves.

Explanation-

• The chloroplast is lens-shaped, oval, discoid,cup-shaped, girdle-shaped, reticulate, plate-like, ribbon-shaped, or spiral.
• Oedogonium is a green alga found in freshwater, it has a filamentous body. The cells of the filament are cylindrical except for the basal cells (holdfast) which are root-like. These cells are used to attach to a surface.
• The Oedogpnium has reticulate shaped chloroplast
• Oedogonium either remains attached to other plants or is free-floating.

• The 'cap cells' are one of the most distinctive features of Oedogonium.​

Chloroplast shape	Examples
Cup-shaped	Chlamydomonas
Spiral shaped	Spirogyra
Reticulate	Oedogonium
Ribbon shaped	Ectocarpus