Dinoflagellates and Calcium Ion Transport

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Question:

Which type of transport do the dinoflagellates use to create an influx of calcium ions?

Active transport through the use of endocytosis.

Active transport through the use of a protein gate.

Passive transport through the process of osmosis.

Passive transport through the process of facilitated diffusion.

Answer:

Dinoflagellates typically create an influx of calcium ions through active transport through the use of a protein gate. This process involves the use of specific ion channels or pumps that actively move calcium ions into the cell against their concentration gradient, which requires energy.