Admin Table of Contents
- 1 What part of the cell helps with transport around the cell?
- 2 What particles are transported in active transport?
- 3 What organelle serves as a pathway for transport?
- 4 How do cell membrane transports materials?
- 5 How are materials transported across the cell membrane?
- 6 Where does facilitated transport take place in the cell?
What part of the cell helps with transport around the cell?
The endoplasmic reticulum (ER) is an organelle responsible for making both membranes and their proteins. It also aids molecular transport through its own membrane. The ER is responsible for protein translocation, which is the movement of proteins throughout the cell.
What particles are transported in active transport?
Substances that are transported across the cell membrane by primary active transport include metal ions, such as Na+, K+, Mg2+, and Ca2+. These charged particles require ion pumps or ion channels to cross membranes and distribute through the body.
What organelle serves as a pathway for transport?
Function Of Cell Organelles
| A | B |
|---|---|
| endoplasmic reticulum | serves as a pathway for the transport of materials throughout the cell |
| nucleus | serves as the control center for cell metabolism and reproduction |
| ribosomes | site of protein synthesis |
| mitochondria | power house of cell, releases energy into the cell |
What is active transport across cell membranes?
Active transport is the movement of dissolved molecules into or out of a cell through the cell membrane, from a region of lower concentration to a region of higher concentration. The particles move against the concentration gradient , using energy released during respiration .
Where does the cell get energy for active transport process?
ATP
Where does the cell get energy for active transport processes? The cell harvests energy from ATP produced by its own metabolism to power active transport processes, such as the activity of pumps.
How do cell membrane transports materials?
Materials move within the cell ‘s cytosol by diffusion, and certain materials move through the plasma membrane by diffusion. Diffusion: Diffusion through a permeable membrane moves a substance from an area of high concentration (extracellular fluid, in this case) down its concentration gradient (into the cytoplasm).
How are materials transported across the cell membrane?
However, these materials are ions or polar molecules that are repelled by the hydrophobic parts of the cell membrane. Facilitated transport proteins shield these materials from the repulsive force of the membrane, allowing them to diffuse into the cell.
Where does facilitated transport take place in the cell?
Facilitated transport proteins shield these materials from the repulsive force of the membrane, allowing them to diffuse into the cell. The material being transported is first attached to protein or glycoprotein receptors on the exterior surface of the plasma membrane.
Which is organelle serves as a pathway for the transport of materials?
Which organelle serves as a pathway for the transport of materials throughout the cell and is also associated with synthesis and storage? The endoplasmic reticulum. Both the smooth and the rough endoplasmic reticulum consist of membranous channels that all connect with one another and with the nuclear membrane.
Which is an important function of the cell membrane?
cell membrane. controls the movement into and out of the cell. cytoplasm. watery material which contains many of the materials involved in cell metabolism. endoplasmic reticulum. serves as a pathway for the transport of materials throughout the cell.