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Answer:
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Explanation:
There are two basic ways that substances can cross the plasma membrane: passive transport, which requires no energy; and active transport, which requires energy. Passive transport is explained in this section and Active transport is explained in the next section, Active Transport and Homeostasis.
And also
Diffusion is the spontaneous movement of gases, without the use of any energy or effort by the body, between the gas in the alveoli and the blood in the capillaries in the lungs. Perfusion is the process by which the cardiovascular system pumps blood throughout the lungs.
According to the question, There are two basic ways that substances can cross the plasma membrane: passive transport, which requires no energy; and active transport, which requires energy.
Explain the active and passive transport?
- Passive transport is explained in this section and Active transport is explained in the next section, Active Transport and Homeostasis.
- Diffusion is the spontaneous movement of gases, without the use of any energy or effort by the body, between the gas in the alveoli and the blood in the capillaries in the lungs.
- Perfusion is the process by which the cardiovascular system pumps blood throughout the lungs.
Thus, there are two basic ways.
To learn more about active and passive transport click here:
https://brainly.com/question/2503897