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3 years ago

Why are G protein only found in Eukaryote cell ?

Biology

1 answer:

Levart [38]3 years ago

6 0

Answer:

they bind to protein-coupled transmembrane receptors with higher complexity than those found in prokaryotes

Explanation:

G-proteins are proteins found inside the cells that function as molecular switches which are activated by binding to guanosine triphosphate (GTP), while they are inactive by binding to guanosine diphosphate (GDP). The G-proteins bind to G-protein-coupled transmembrane receptors (GPCRs) in the cytoplasmic region. The GPCRs are a very diverse group of proteins that are activated by extracellular molecules ranging from small peptides to large proteins, including pheromones, neurotransmitters, light-sensitive compounds, etc, thereby allowing them to respond to diverse stimuli from the extracellular environment. In consequence, it is reasonable to suppose that the signaling pathways in which G proteins are involved have a higher complexity level than those observed in primitive prokaryotic organisms.

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kotegsom [21]

The type of inversion is Paracentric inversion.

There are two types of inversion at the chromosome level, depending on the centromere:

Paracentric inversions:

the centromere is not included in the inversion.

Pericentric inversions:

The centromere is included in the inversion which can transform a metacentric chromosome into an acrocentric chromosome.

the structure that will form during synapsis is inversion loop.

These inversions are balanced rearrangements but at the moment of meiosis they cause difficulties in pairing. There is most often formation of a pairing loop. The occurrence of recombination in the inverted segment causes the formation of abnormal gametes by duplication / impairment.

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2 years ago

The half-life of carbon-14 is 5600 years. If a piece of charcoal made from the wood of a tree shows only % of the carbon-14

Leokris [45]

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<h3>What is Carbon?</h3>

Carbon is a chemical component with the symbol C and atomic number It is nonmetallic and tetravalent—its atom makes four electrons unrestricted to form covalent chemical bonds. It belongs to group 14 of the periodic table. Carbon produces up only about 0.025 percent of Earth's crust.

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To learn more about Carbon, refer to:

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4 0

1 year ago

Pls answer whole page plz

madreJ [45]

1. air is warmed near earth's surface
2. water vapor rises and comes in contact with cooler air
3 water vapor condenses onto partials etc.
4 water enters the atmosphere through evaporation
5 clouds are born

warm air can “hold” more water vapor than cool air because as the air warms its molecules move farther apart, making room for more molecules. This leads to the idea that as air cools its molecules move closer together, “squeezing” out water vapor.

6 0

3 years ago

Use the drop-down menus to complete the statement.

Elanso [62]

Answer: the first one is armature and the second one is pole

3 0

3 years ago

The principle of uniformitarianism states that ___.

Ksivusya [100]

Answer:

D. Geologic process that we observed today occurred the same way in the past.

Explanation:

<h3>Hope this helped!</h3>

8 0

2 years ago