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madam [21]
4 years ago
10

Archeological evidence suggests that Neanderthals might have been aware of the medicinal properties of plants over 60,000 years

ago. Imagine you are a modern-day ethnobotanist and have identified a compound from fossilized tree pollen that binds to the alpha subunit of the most common G-proteins. To test how whether the compound affects the activity of Gα, you treat liver cells with the compound alongside epinephrine. You observe that the cells fail to produce glucose. Which could be the activity of the compound?
Biology
1 answer:
VARVARA [1.3K]4 years ago
6 0

Answer:

It could be prevent Ga from binding to the epinephrine receptor.

Explanation:

Hindering GTPase action will make G-protein to tie to adenyl cyclase for all time so Glucose is delivered persistently.  

Diminishing the proclivity for GDP will build the opportunity of authoritative of GTP to G protein which thus will initiate the pathway.  

On the off chance that G protein ties with adenyl cyclase it will invigorate it.  

Yet, in the event that the G-protein is kept from official with epinephrine receptor, at that point the receptor can't enact trade the guanine nucleotide to G-protein for initiation. Thus the G-protein stays in latent state.

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SCORPION-xisa [38]
Molecules lose energy and do not vibrate or move around as vigorously. This allows more stable hydrogen bonds to form between water molecules and there is less energy to break the bonds.
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3 years ago
Interpret the model. Drag "True" or "False" to the end of each statement. ResetHelp True False The two lines on the outside of t
Aleonysh [2.5K]

(see attached image)

Answer:

  1. The two lines on the outside of the chloroplast indicate a double membrane: True
  2. The Golgi apparatus is not shown in this cell but this does not mean that this organelle does not occur in the cell: True
  3. The relative dimensions and placement of the membranes and organelles in this model are exact representations of those structures in a living cell: False
  4. The large structure in the center is a nucleus: False
  5. This cell is capable of photosynthesis: True

Explanation:

  1. Chloroplast, like mitochondra, have double membrane called the chloroplast envelope. Hence the first statement is true.
  2. Golgi apparatus is found in all plant and animal cell. It is usually located close to endoplasmic reticulum. Hence this statement is true.
  3. The relative dimensions and placement of the membranes and organelles in this model are not an exact representation of those structures found in living cell. Hence its a false statement.
  4. The large structure in the centre is vacuole and not nucleus. Hence its a false statement.
  5. Since its a plant cell so it is capable of photosynthesis. Hence its a true statement

7 0
3 years ago
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How are plant cells and human cells the same?
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Answer:

Option D. They use mitochondria to release energy from the sugars.

Explanation:

Mitochondria is an important organelle which is present in both plants and humans. Mitochondria is also called power house of the cell because it release energy in the form of Adenine tri phosphate (ATP) when oxygen is added with the sugar (glucose) during the process of respiration. Energy is also released from glucose molecules in the absence of oxygen but the less energy will be produced.

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Answer:

It could be because of global warming.

Explanation:

Global warming can have an impact on the way the planet is moving because in order for a global warming to happen the earth has to be rotating different maybe more near the sun causing the earth to slow down due to heat

(my answer may not be right but its a good reason)  

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