If a star of 50 solar masses were to supernova. It would most likely become a black hole.
A star is a hot body of glowing gas which starts its life in Nebulae. The stars vary in size, mass and temperature. The mass of a star ranges from 1/20 times to 50 solar mass.
The stage one of the stars is born in nebula, which is a region of very high density and then it gets condensed to a huge globule of gas and dust that contracts under its own gravity.
The next stage is a region of the condensing matter which starts heating up and glowing is known as Protostar. At stage three, hydrogen fuses and forms helium as the nuclear reactions start. Stage four is a Main Sequence star when it starts to release its energy, contraction stops and it begins to shine.
Some of the stars have mass more than 3 times of the Sun and up to 50 times the mass of the sun.
When the surviving core is between 1.5-3 solar mass, with higher contraction making it tiny and dense a Neutron star is formed. If the core is greater than 3 solar masses then the core further contracts to become a Black Hole.
Answer:
phosphorylation by ATP and dephosphorylation, which turn off/on the complex
Explanation:
The pyruvate dehydrogenase complex consists of three different enzymes capable of converting pyruvate into acetyl-CoA. The enzymes that form the pyruvate dehydrogenase complex are pyruvate dehydrogenase (E1), dihydrolipoyl transacetylase (E2) and dihydrolipoyl dehydrogenase (E3). In eukaryotic organisms, the pyruvate dehydrogenase complex is controlled by pyruvate dehydrogenase kinase and pyruvate dehydrogenase phosphatase, which turn off and turn on the complex, respectively. In this mechanism, pyruvate dehydrogenase kinase phosphorylates (using ATP) to target serine residues in E1 subunit, while pyruvate dehydrogenase phosphatase dephosphorylates this subunit, thereby deactivating and activating the complex, respectively.
I am not sure but if you have a picture of a food web it is probably the prey that the roseate spoonbills eat (aka all the organisms with arrows pointing towards it)
The nucleus does not include a Cytoplasm
<span>advancing mass of warm air, in particular, the leading edge of the warm sector of a low-pressure system.</span>