The Rock Cycle is a group of changes. Igneous rock can change into sedimentary rock or into metamorphic rock. Sedimentary rock can change into metamorphic rock or into igneous rock. ... Or, igneous rock can form above ground, where the magma cools quickly
Answer:
2 electrons
Explanation:
According to the octet rule, atoms must bond to each other, sharing electrons among themselves in an attempt to complete their valence shell (last layer of the electrosphere). In other words, an atom becomes stable when it has 8 electrons in its valence shell.
Oxygen atoms have six electrons in their valence shell, so to achieve the stability suggested by the octet rule (eight electrons), these atoms share two electrons, forming one oxygen gas (O₂) molecule.
Answer:
The added carbon is supplied by acetyl CoA and the 2 eliminated carbons are released as CO2.
Explanation:
TCA cycle or citric acid cycle occurs in the mitocondrial matrix.
The ist step of TCA cycle deals with the formation of citrate molecule bt the addition of Acetyl CoA with oxaloacetate. The acetyl CoA is a 2 carbon compound formed from pyruvate by the catalytic activity of pyruvate dehydrogenase .
The 2 eliminated carbons are released as carbon di oxide or CO2.The CO2 molecule is eliminated during the formation of alpha ketoglutarate from isocitrate .The second CO2 molecule is eliminated when alpha ketoglutarate is converted to succinyl CoA.
Answer:
Well several things, during sexual reproduction, by which DNA is passed from one generation of cells to the next. Also, bacteria use double-stranded DNA as their genetic material. So therefore there are 3 ways that genetic information is exchanged:
Conjugation, Transformation, and Transduction.
In conjugation, DNA passes through an extension on the surface of one bacterium and travels to another bacterium (Figure below). Bacteria essential exchange DNA via conjugation. In transformation, bacteria pick up pieces of DNA from their environment. In transduction, viruses that infect bacteria carry DNA from one bacterium to another.
