The two events that occur when gravity causes a nebula to collapse into itself are:
A. Nuclear fusion start.
B. A new star forms.
Explanation:
- Nebula are giant clouds of dust and gases.
- These clouds are considered as progenitors of stars and planets.
- The gravitational pull within these giant clouds result these large masses to collapse towards their centre.
- The gravitational collapse results in tremendous rise in temperature till a point where nuclear fusion begin .
- The stars are born out of such mechanism and act as a source of heat and light in universe.
i don’t get this lol but ok
Answer:
C
Explanation:
pyruvate dehydrogenase is the enzyme which catalysis pyruvate to acetyl Co -A. Thus,it ensures the formation of link reaction/ bridge reaction for linking glycolysis with Citric acid cycle. Therefore, inhibition of this enzyme, prevent link reaction, and there reduction in pyruvate utilization and therefore prevent the commencements of Citric acid cycle, with consequent reduction in glucose oxidation. as there is no reaction of acetyl Co A (from link reaction from pyruvate ) with 4C oxaloacatate in the kreb Cycle to form Citrate in Kreb's cycle. Thus the heart depends on fatty acid supply for energy.
Explanation:
Since plants and fungi are both derived from protists, they share similar cell structures. Unlike animal cells, both plant and fungal cells are enclosed by a cell wall. ... They both also have organelles, including mitochondria, endoplasmic reticula and Golgi apparatuses, inside their cells.
