Over a million students use our free study notes to help them with their homework
Na+/K+ ATP Transporters are found within the plasma membrane of a neurone. At rest, the transporters use ATP to pump 2 K+ ions into the cell for every 3 Na+ ions that are pumped out of the cell. This mean...
The primary structure of a protein is the sequence of amino acids found in the polypeptide chains, this sequence determines the shape and properties of the protein.The secondary structure of a protein is ...
(i) 1. amino acid 2. DNA(ii) Decomposer microrganisms break down dead material into ammonia. Ammonia is then converted into nitrite and then oxidised to nitrate by nitrifying bacteria. The process is know...
The main difference to consider would be that sympatric speciation occurs in the same habitat and population while allopatric speciation requires a geographical barrier between subsets of the population. ...
Deoxygenated blood enters the right atrium of the heart via the superior & inferior vena cavae. The atria contract and the right atrioventricular valve opens, allowing the blood to enter the right ven...
←
149
150
151
152
153
→
Internet Safety
Payment Security
Cyber
Essentials