Active transport is the movement of molecules against their concentration gradient. It requires a transmembrane protein. Since this process decreases... See full answer below.Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our e...
Other types of cell transport that require energy involve vesicles. Vesicles are small sacs that are produced from the cell's Golgi apparatus. They collect waste products which they expel from the cell by fusing with the cell membrane, though they can also be used to collect molecules that are...
Active transport, also known as uphill transport, requires the transport of molecules from a low-concentration region to a high-concentration region. Therefore, active transport must couple to another spontaneous process to transport charged or uncharged substrates against their thermodynamic forces.What...
What type of transport can move big molecules across the cellular membrane? What does the cell membrane keep out? When molecules use facilitated diffusion, what kind of protein will they need to help them move molecules across the membrane? What is the hydrophobic part of the cell membra...
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. ...
Explain the behavior of water molecules in an isotonic solution. A cell that neither gains nor loses water when it is immersed in a solution is: A. isotonic to its environment. B. hypertonic to its environment. C. hypotonic to its environment. D. metabolically inactive. E. dead. What body...
Sinks- sinks such as growing tissues are areas in need of Nutrition. Storage areas such as can roots andstems serve as things when they are low in supply. The constant of the phloem tubes flow from the Origins to these sinks, where, by active transport, the sugar ...
To get through, large molecules need shuttle-mediated transport (something to latch onto, which can permeate the barrier). The mass for one type of chicken lectin was found to be69,000 daltons(16). For tomatoes, one is65,633(17). Phytohemagglutinin-L (PHA-L) isolated from the red kidney...
What are high-energy molecules found in the cell and how are they used to make ATP? The functioning of ATP synthase requires a proton gradient. What process forms the proton gradient? What is the role of ATP during muscle contraction? 1. How do cells obtain the energy they need to...
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...