The core of the sun is so hot and there is so much pressure, nuclear fusion takes place: hydrogen is changed to helium. Nuclear fusion creates heat and photons (light). The sun's surface is about 6,000 Kelvin, which is 10,340 degrees Fahrenheit (5,726 degrees Celsius).^-^
Hope I Helped Honey Have A Nice Day ¨Peace¨
Answer:
to the lungs
Explanation:
it needs to be reoxygenated so it goes back into the lungs
Answer:
Classification system changes with the passage of time because new organisms are discovered which has unique characteristics and not fit to classify in the present kingdoms so for that new kingdoms will be formed for their classification. At first, there are only two kingdom systems but after the discovery of fungi and protists etc, the scientist introduced five kingdom system.
Enzymes are biological catalysts which increase the rate of biochemical reactions without undergoing any change themselves. They bind with the substrate to form a enzyme substrate complex leding to the formation of product releasing free enzyme.
Enzymes have an optimum pH at which they show their maximum activity. Any change in the pH effects the enzyme and the enzymatic reaction. Most of the enzymes are functional at the neutral pH of 7 in the cell cytoplasm with a few exceptions. An acidic environment in the cell, changes the tertiary structure of the enzymes and the bonds of the enzymes are weakened. Thus, preventing the substrate binding to the active site of the enzyme and inhibiting catalysis. This is due to the change in the structure of the active site leading to the lack of electrostatic attraction between the enzyme and the substrate.