Active Transport Flashcards
Describe Active transport, How it occurs in a root hair cell, Structure of a root hair cell, It's function and it's requirements
What is Active transport?
Active transport is an active process that involves particles moving across the concentration gradient meaning it involves particles moving from a region of lower concentration to a region of higher concentration.
Differentiate between Active transport and Diffusion
Active transport involves particles moving across the concentration gradient
while, Diffusion involves particles moving down the concentration gradient.
Active transport requires energy from the cell
while, Diffusion does not require energy.
Describe Active transport in a root hair cell
Plants get their nutrients from the soil and they get this nutrients through their roots specifically their root hair cell. These root hair cells connect the rest of the plant to the soil. Root hair cells have a high Mineral concentration. so, osmosis can’t help them collect nutrients from this soil. This is where Active transport comes in. The root hair cell sacrifices energy to move the minerals from the soil into the root hair cell through the cell membrane.
What is the function of Active transport in a plant?
To provide the plant with essential nutrients and minerals such as Magnesium and nitrates.
What provides energy to the cell for active transport?
The Mitochondria.
List the parts of a root hair cell and its adaptations
- The cell membrane: semi
permeable. - The Nucleus ( contains genetic
material ). - Cytoplasm ( Where the reaction
takes place ). - Mitochondria ( power house ):
The root hair cell contains
mitochondria to provide
energy for active transport. - Ribosome ( Site for protein
synthesis ). - Vacuole (contains cell sap).
- Has a large surface area to
increase the rate of absorption.
Is Active transport a passive or active process?
Active transport as the name suggests is an active process in the sense that it requires energy from the cell.
