Why is it important for cells to be able to use both active and passive transport to transport molecules across the cell membrane? What cell organelle transports proteins? Why is no energy required in passive transport? Which structure helps produce, process, and transport proteins within the cell...
Not all molecules can cross biological membranes via simple diffusion. This may be because they are too large or polar. Such molecules require a channel, in the form of a transmembrane protein, to travel through.Answer and Explanation: Active transport is the movement of molecules agains...
The main difference between active and passive transport is the use of energy during cell transport of materials. Active transport uses energy and passive transport does not. In active transport, molecules are moving against a concentration gradient (or membrane), meaning the cell moves materials fro...
Step-by-Step Text Solution:1. Definition of Active Transport: Active transport is a biological process that requires energy to move molecules across a cell membrane. This movement is against the concentration g
Discussed here is evidence for the roles of ABC and SLC transporters in the handling of diverse substrates, including metabolites, antioxidants, signalling molecules, hormones, nutrients and neurotransmitters. It is suggested that these transporters may be part of a larger system of remote communication...
A carrier molecule is a protein that helps transport a substance or electrons across a barrier. Carrier proteins usually allow the transport of polar... Learn more about this topic: Carrier Proteins | Definition, Functions & Examples from
Cells are complex structures with many "moving parts" that need to get from one point to another within the cell in order to accomplish metabolic processes. There are specialized organelles in both plant and animal cells that make up the superhighways of a cell. ...
Glycans are basic molecules in all living organisms. However, they are not well characterized due to the unavailability of specific and high-sensitivity detection reagents. We describe here a method for enzyme-based glycan imaging using glycosyltransferases. Azido-sugars are incorporated into target glyc...
Like plant cells, animal cells have a cell membrane. This is an important barrier that separates the interior parts of the cell from the external environment while also regulating the movement of molecules/substances in and out of the cell. ...
passive transport c. facilitated diffusion d. osmosis Which type of transport requires the most energy use by cells? a. Diffusion b. Passive transport c. Phagocytosis d. None of the above Where does the cell get energy for active transport processes? What is the ...