A P Bursaria Cell That Has Lost Its Zoochlorellae Is Said

question 55

Multiple Choice

A P. bursaria cell that has lost its zoochlorellae is said to be aposymbiotic. It might be able to replenish its contingent of zoochlorellae by ingesting them without subsequently digesting them. Which of the following situations would be most favourable to the reestablishment of resident zoochlorellae, assuming compatible Chlorella are present in P. bursaria's habitat?

• A)abundant light, no bacterial prey
• B)abundant light, abundant bacterial prey
• C)no light, no bacterial prey
• D)no light, abundant bacterial prey

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Definitions:

Tissue Culture Propagation

A technique in plant biology where small pieces of plant tissue are grown in a sterile, nutrient-rich environment to produce new plants.

Improving Food Crops

The scientific and agricultural practice of modifying plant species to enhance their yield, nutritional value, and resistance to pests and diseases.

Plant Cells

Eukaryotic cells that are part of a plant, characterized by a cell wall, chloroplasts for photosynthesis, and a large central vacuole.

Stoma

Tiny openings or pores found on the surface of leaves and stems that allow for gas exchange between the plant and its environment.