In biological systems, there are several membrane transport systems responsible for the passage of ions, such as Na^+ or K^+, or small molecules, such as glucose or amino acids, through biological membranes. Classify each membrane transport system as either a primary active transporter, a secondary active transporter, or a passive transporter. Which transport systems utilize a chemical reaction for the energy source? a. the Ca^2+ ATPase of the sarcoplasmic reticulum b. the Na^+/K^+ ATPase of plasma membranes the amino acid c. - Na^+ transporter of kidney cells the glucose d. - Na^+ transporter of intestinal epithelial cells the glucose transporter of erythrocytes

The collection of processes that monitors the movement of solutes like small molecules and ions across the biological membranes is termed as membrane transport. The mode of transport is differentiated into two types, that is, Active transport and Passive transport. Active transport is further differentiated into primary and secondary active transport.  

In the given question, the Calcium-ATPase present in the sarcoplasmic reticulum and the sodium-potassium-ATPase present in the plasma membrane functions as a primary active transporter. The amino acid-sodium ion transporter in the kidney and the glucose-sodium ion transporter of intestinal epithelial cells act as secondary active transporter. In the erythrocytes, the glucose transporter acts as a passive transporter.  

The Calcium-ATPase present in the sarcoplasmic reticulum and the sodium-potassium-ATPase present in the plasma membrane uses a chemical reaction for the energy source.  

about 40,000,000 results (0.81 seconds)  

search results

what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.