If a GPCR lost the capability to release GDP: A. the receptor would be permanently activated. B. the receptor would not be able to be activated. C. the alpha subunit would detach. D. the beta subunit would detach.

Answers

Answer 1

If a GPCR lost the capability to release GDP, the receptor would not be able to be activated (Option B).

GPCRs, or G-protein coupled receptors, are membrane proteins that play a crucial role in signal transduction. They are activated when a ligand binds to the receptor. The GPCR is then able to exchange GDP for GTP on the alpha subunit of the associated G-protein.The exchange of GDP for GTP allows the activation of the G-protein and subsequent downstream signaling. If a GPCR lost the capability to release GDP, the G-protein would be unable to exchange GDP for GTP, which is an essential step for activation. As a result, the GPCR would remain inactive and would not be able to initiate any downstream signaling. The alpha subunit would not detach (Option C), and the beta subunit would not detach (Option D) because these events are dependent on the GPCR's activation. Similarly, the receptor would not be permanently activated (Option A), as the inability to release GDP would prevent activation altogether.Hence the correct answer is Option B.

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Related Questions

The nucleotide base sequence of a strand of DNA is TAC-CGG-AGT . What is the sequence of the complementary DNA strand ?

Answers

Answer: ATG-GCC-TCA

Explanation: A's pair with T's, C's pair with G's. In the complementary strand simply pair any T's with A's and vice verse and any C's with G's and vice verse

What method do scientists use to trace plant and animal extinctions through Earth's history

Answers

Answer:

Paleontology is the study of the history of life on Earth as based on fossils. Fossils are the remains of plants, animals, fungi, bacteria, and single-celled living things that have been replaced by rock material or impressions of organisms preserved in rock.

Explanation:

Because there are very few ways of directly estimating extinction rates, scientists and conservationists have used an indirect method called a “species-area relationship.” This method starts with the number of species found in a given area and then estimates how the number of species grows as the area expands.
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How is meiosis I different from meiosis II? What are the products of each? How do they relate to the parent cell or to mitosis?

Answers

Answer: Meiosis I is a Heterotypic division but Meiosis II is a Homotypic division. Meiosis I produces 2 Diploid cells and Meiosis II produces 4 Haploid cells. Both produce two daughter cells from each parent cell.

PLEASE ANSWER

Which conclusion do the graphs support?

A. The faster people use trees, the higher the biodiversity.
B. Trees have little to no effect on biodiversity.
C. Deforestation leads to loss of biodiversity.
D. Biodiversity causes deforestation.

Answers

Answer:

C

Explanation:

deforestation leads to loss of biodiversity

If the amount of CO2 in the atmosphere increases, do we expect to record an increase or decrease in the pH of the ocean? Why?

Answers

Answer:

As the atmospheric concentration of carbon dioxide above water increases, the acidity of the water will increase causing the pH to decrease.

Describe three abiotic and three biotic components of an ocean marine ecosystem, Please Help Now!!

Answers

Answer:

Biotic factors include plants, animals, and microbes; important abiotic factors include the amount of sunlight in the ecosystem, the amount of oxygen and nutrients dissolved in the water, proximity to land, depth, and temperature. Sunlight is one the most important abiotic factors for marine ecosystems

Explanation:

Answer:

Biotic factors include plants, animals, and microbes; important abiotic factors include the amount of sunlight in the ecosystem, the amount of oxygen and nutrients dissolved in the water, proximity to land, depth, and temperature. Sunlight is one the most important abiotic factors for marine ecosystems

Explanation:

what makes some melt? What happens to the particles in snow as it melts?

Answers

Heat and kinetic energy makes snow melt. The particles start to create kinetic energy as they start moving a lot. Can I have brainliest pls?

describe one way in which the body gets rid of lactic acid

Answers

Stretching can help stimulate circulation, increase flexibility, and relieve tension. This brings more oxygen to the muscles, which reduces lactic acid production

Which organelles must work together to provide food and energy to a plant cell?

Answers

Answer:

Mitochondria are the working organelles that keep the cell full of energy. In a plant cell, chloroplast makes sugar during the process of photosynthesis converting light energy into chemical energy stored in glucose.

Chloroplast and mitochondria are organelles that must work together to provide food and energy to a plant cell.

Plants are living organisms that are capable of nourishing themselves from inorganic substances.

The complex chemical process by which they manage to do so is called photosynthesis and it takes place in chloroplasts.

Chloroplasts are elliptical-shaped organelles - their number varies between 20 and 100 in each plant cell - found in leaves and possessing the enzymatic machinery necessary to transform solar energy into chemical energy and, finally, into food.

The plant cell needs energy to grow and multiply and the mitochondria provide most of this energy by performing the last stages of the breakdown of food molecules.

Its main function is to supply the electron carriers (ATP), a product of cellular respiration, which provide the energy that the cell needs.

Therefore, we can conclude that within the leaves of plants, in the chloroplasts of plant cells, the chemical process that transforms inorganic matter into food takes place and the mitochondria are the energy-producing organelles.

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The photo shows a process called mosquito fogging.
What is one purpose of mosquito fogging?
O A To prevent people from getting stek from undercooked meat
Te treat people who have infeetiens caused by Viruses
e. Te eamy waste away from eities so people dont get siek
D. To kill insects that commonly spread diseases to people

Answers

Answer:

D. To kill insects that commonly spread diseases to people

Answer:

D. To kill insects that commonly spread diseases to people

Explanation:

Fogging is a technique used for killing insects that involves using a fine pesticide spray (aerosol) which is directed by a blower.

Need help

The photograph shows a consequence of air pollution.
Which of these was most likely the cause of the effect shown in the
photograph?

A. Eutrophication

B. Acid deposition

C. Ozone depletion

D. Bioremediation

Answers

The most likely cause of the effect shown in the given photograph is Acid deposition.

What are the causes of Air pollution?

The causes of air pollution include excessive burning of fossil fuels, industrial emissions, carbon emissions from automobiles, construction and industrial wastes, etc.

Acid deposition may be also known as Acid rain. It includes the form of precipitation with several acidic components like nitric acid and sulfuric acid.

These precipitations finally falls on the earth from the atmosphere in the form of rain, snow, fog, etc., and are deposited on tall trees, buildings, and objects, and lose their natural beauty.

Therefore, the most likely cause of the effect shown in the given photograph is Acid deposition.

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Answer:

Acid Depletion

Explanation:

Which type of lipid has a least one double bond ( i.e. a kink?)
a -saturated
b- unsaturated
c - monosaccharide
d - disaccharide

Answers

Answer:

B Unsaturated

Explanation:

Unsaturated fat, a fatty acid in which the hydrocarbon molecules have two carbons that share double or triple bond(s) and are therefore not completely saturated with hydrogen atoms.

Miguel y Andrés empujan dos cajas del mismo material y de diferente peso, aplicándoles la misma fuerza, como se muestra en la siguiente figura: Si Miguel y Andrés empiezan a empujar sus cajas al mismo tiempo, ¿cuál de los dos cruzará primeroel banderín?

Answers

Answer:

Cualquiera sea más ligero porque será más fácil de empujar. Dando como resultado la caja para superar la línea de meta más rápido

Explanation:

where is sucrose transported to in plants?
(name like either roots, leaves, where?)

Answers

To all parts but particularly u can say phloem sap

all you need is in the photo


ASAP​

Answers

Answer:

A B and C but not D

Explanation:

Moving from a Hight concentration gradient to a low concentration gradient means moving from an area where a substance in quantity to an area where it is lower in quantity. D is the only one showing something to be moved against a concentration gradient because there are more squares inside the cell than outside the cell yet the squares are still being moved into the cell.

what is insomnia ?...​

Answers

Answer:

sahi bol rahi hai ye ladki

Explanation:

I also think ,u lack ur sleep

Answer:

Insomnia is a common sleep disorder that can make it hard to fall asleep, hard to stay asleep, or cause you to wake up too early and not be able to get back to sleep.

Explanation:

Tectonic plates can affect __________________ environmental changes, which might be a cause for species extinction

Answers

Answer:

I believe it is long term.

Explanation:

did it in edge 2020

examples of green house gases​

Answers

Answer:

Carbon dioxide

Methane

Nitrous Oxide

Explanation:

Write a Haiku about science please

Answers

Light and energy,

Electricity abound,

Generating life.

This map shows the counties in Montana that are prone to dam failure. If you were in charge of flood control in Montana, where would your biggest areas of concern be? What other data would you collect about these areas or about local weather patterns to help you make a flood-control plan for the state?

Answers

Answer:

The focus would be the western side of the state and several counties in the central part of the state because there are many high-risk dams in these areas. Knowing what communities and structures are located around these dams, the average precipitation rate, and projected rainfall totals would be helpful in designing a flood-control plan. Knowing the age and condition of each dam would be important for setting priorities in the plan.

Examples of decapods are​

Answers

Answer:

Crabs, lobster, shrimp, etc.

Explanation:

Put "Polygenic Traits" in a sentence

Answers

Answer:

Polygenic traits are controlled by a number of separate genes.

Hope it helps! :D

Answer:

Polygenic traits are controlled by a number of separate genes

Explanation:

Hope this helps

8.What attaches muscles to bones?

veins
tendons
ligaments
joints

Answers

Tenons attach the muscles to the bones

Discarded materials other than fluids from natural, municipal, agricultural, and industrial sources are called __________.
A)
hazardous waste
B)
air pollutants
C)
particulates
D)
medical waste
E)
solid waste

Answers

the answer is solid waste

I hope it helps you

Answer:

B

Explanation:

Most of these industrial age resources that they emit are often called air pollutants

What does the temporal lobe and Cerebellum do?

Answers

Answer:

The temporal lobes are also believed to play an important role in processing affect/emotions, language, and certain aspects of visual perception.

The cerebellum is busy planning, adjusting and executing movements of the body, the limbs and the eyes.

Explanation:

State the ascent of sap in brief help me and thank you​

Answers

Answer:

Explanation:

The ascent of sap in the xylem tissue of plants is the upward movement of water and minerals from the root to the crown.

what would the chromosome to the right be called?

Answers

Answer:

The two identical chromosomes that result from DNA replication are referred to as sister chromatids. Sister chromatids are held together by proteins at a region of the chromosome called the centromere. Chromosomes undergo additional compaction at the beginning of mitosis.

Explanation:

Based on the position of centromere and length of chromosomal arms, the chromosomes are classified into 4 groups:

(1). Telocentric chromosomes.

(2). Acrocentric chromosomes.

(3). Sub-metacentric chromosomes.

(4). Metacentric chromosomes.

What does the prefix pseudo mean in the word pseudoscience?

false
subjective
systematic
factual

Answers

Hii!!! I believe the answer is A. False. (:

What biome is most of the small islands

Answers

Mediterranean I think

What concept suggests that small bacteria were engulfed by larger cells to become mitochondria and help to self flourish and become a eukaryotic cell

Answers

Answer:

Endosymbiotic theory

Explanation:

The concept that hypothesized that small bacteria were engulfed by larger cells to become the mitochondrion  and eventually become a eukaryotic cell is known as symbiogenesis or the endosymbiotic theory.

The endosymbiotic theory argues that organelles like mitochondrion and the chloroplast found in modern-day eukaryotic cells were formerly prokaryotic microbes. These microbes got ingested by primitive, amoeba-like eukaryotic cells that were first formed but instead of dying, the engulfed microbes found a way to symbiotically coexist with their hosts, eventually forming the organelles - aerobic microbes forming the mitochondrion and photosynthetic microbes formed the chloroplast.

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