Question

Транспорт веществ в клетку и обратно осуществляется 1)пластидами 2)клеточной мембраной 3)митохондриями

Answer 1

2)клеточной мембраной

Answer 2

2 ( клеточная мембрана )

Answer 3

Transport of Substances in and out of the Cell

The transport of substances in and out of the cell is a crucial process for maintaining cellular function and homeostasis. Let's explore the mechanisms involved in this process.

1) Plastids: - Plastids are a group of organelles found in plant cells, and they play various roles, including the synthesis and storage of important substances. - While plastids are involved in several cellular processes, their role in the direct transport of substances in and out of the cell is not a widely recognized function.

2) Cell Membrane: - The cell membrane, also known as the plasma membrane, is a semipermeable barrier that surrounds the cell and regulates the passage of substances into and out of the cell. - The cell membrane is primarily responsible for the transport of substances in and out of the cell, utilizing various mechanisms such as passive diffusion, facilitated diffusion, and active transport.

3) Mitochondria: - Mitochondria are known as the powerhouses of the cell and are primarily involved in energy production through cellular respiration. - While mitochondria play a crucial role in energy metabolism, their direct involvement in the transport of substances in and out of the cell is not a well-established function.

In summary, the transport of substances in and out of the cell primarily occurs through the cell membrane, which regulates the movement of molecules and ions. While plastids and mitochondria have essential cellular functions, their direct involvement in substance transport is not as prominent as that of the cell membrane.

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