Active and passive transport are important processes that help the cell(1 point)
Responses
regulate the uptake and removal of materials.
regulate the uptake and removal of materials.
metabolize materials.
metabolize materials.
change size and shape.
change size and shape.
maintain the cellular membrane.
maintain the cellular membrane.
The correct response is: regulate the uptake and removal of materials.
To understand why active and passive transport are important processes for the cell, we need to know what these processes involve.
Active transport is a process that requires the cell to use energy in order to move molecules or ions against their concentration gradient (from an area of low concentration to an area of high concentration). This energy is typically provided by ATP (adenosine triphosphate). Active transport plays a vital role in regulating the uptake and removal of materials in the cell. It allows the cell to maintain appropriate concentrations of molecules or ions inside and outside the cell, even when the concentrations are not naturally balanced. For example, active transport is responsible for the removal of sodium (Na+) ions from the inside of the cell and the uptake of potassium (K+) ions into the cell.
On the other hand, passive transport does not require energy and occurs through simple diffusion or facilitated diffusion. Simple diffusion is a process where molecules move from an area of high concentration to an area of low concentration, down their concentration gradient. Facilitated diffusion involves the use of carrier proteins or channel proteins to assist in the movement of molecules across the cell membrane. Passive transport also plays a crucial role in the regulation of the uptake and removal of materials, but it does not require energy expenditure by the cell.
Therefore, both active and passive transport are vital for the cell to regulate the uptake and removal of materials. Active transport is necessary when molecules or ions need to be moved against their concentration gradient, while passive transport allows for the movement of molecules down their concentration gradient. These processes help the cell maintain appropriate concentrations of substances, metabolize materials, and maintain the integrity of the cellular membrane. Additionally, through these processes, cells can change size and shape as needed for various physiological functions.