Why are G protein only found in Eukaryote cell ?

Answers

Answer 1

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.


Related Questions

Match each part of Sammi's model to the bodily structure it represents. One bodily structure has already been labeled for you.

Answers

Answer:

corrugated cardboard tube - digestive tract

irregular surfaces on the corrugated tube - villi

pump - heart

Plastic tubing - blood vessels

Explanation:

The corrugated cardboard tube represents the digestive tract.  The give away was the presence of the irregular surfaces within the tubes. This is called the villi. The villi is responsible for the absorption of food after digestion into the body.

Irregular surfaces on the corrugated tube represent the villi. They are tiny hair-like structures that are in the small intestine, that are responsible for the absorption of food into the bloodstream.

The pump represents the heart. The heart is the only organ in the body that provides the pressure force that pushes the blood throughout the body. In this model, the pump will most likely be performing the same function.

The plastic tubings are meant to contain one form of fluid or the other. Judging from that, they can be said to represent the blood vessels. This is because they are connected to the heart and are meant to transport bodily fluids around the body

Answer:

corrugated cardboard tube - digestive tractirregular surfaces on the corrugated tube - villipump - heartPlastic tubing - blood vessels

Explanation:

Which of the following best explains the potential health problems associated with endocrine disruptors? A) Endocrine disruptors are the only available pesticides,hence they are used widely. B) Endocrine disruptors mimic hormones that regulate critical biological processes. C) Endocrine disruptors do not biodegrade, remaining toxic years after their release. D) There are no major health problems associated with exposure to endocrine disruptors. E) Endocrine disruptors encompass a wide array of toxic pesticides.

Answers

B) Endocrine disruptors mimic hormones that regulate critical biological processes.

Endocrine disruptors, at times moreover called as hormonally unique trained professionals, endocrine disturbing engineered substances, or endocrine upsetting blends are manufactured substances that can interfere with endocrine structures. These aggravations can cause threatening developments, birth flees, and other developmental issues.

The potential health problems associated with endocrine disruptors is that Endocrine disruptors mimic hormones that regulate critical biological processes.

For more information:

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Answer:

It's A.) Endocrine disruptors mimic hormones that regulate critical biological processes.

Explanation:

Quizlet gave me the answer

What are two major drivers of surface ocean current and deep ocean current? 1. Surface ocean current 2. Deep ocean current The choices are: A. Differences in water density, resulting from the variability of water temperature and salinity B. Global wind systems

Answers

Answer:

1-B 2-A

Explanation:

this is because the wind blowing over the water causes motion whereas deep water is effected by Differences in water density, resulting from the variability of water temperature and salinity


Evidence without_______
increases its reliability.
a
bias
b
question
с
repetition
d
replication

Answers

Answer:

I'll say its B ) Question

Explanation:

because when your proving something with evidence then you start asking questions (or still have questions) makes it seem like you don't really know.

Why do you think premenopausal women need more iron than
men of the same age?

Answers

Answer:

Women need more iron than men to make up for the amount of iron they lose in their menstrual period.

Explanation:

Answer:

Premenopausal women shed blood as part of menstruation every month, which lowers the level of iron in the body. So, they need more iron than men and are also at a greater risk for this nutritional deficiency.

PLATO

Explanation:

PLS ANYONE IT'S URGENT Explain eubacteria ?

Answers

Eubacteria, or “true” bacteria, are single-celled prokaryotic microorganisms that have a range of characteristics and are found in various conditions throughout all parts of the world.

Answer:

Eubacteria are PROKARYOTIC organisms characterized by the lack of membrane and have peptidoglycan on cell wall when present.

Explanation:

They include most of the familiar bacteria such as E.

Hope it helps.

What alternate form of genes do nucleic acids have that allows them to offer variability?

Answers

Answer:

allales

Explanation:

an allele is the variant from a gene

Answer:

A. allales

Explanation:

Aquatic organisms in coastal areas face a variety of predators on land and in the water and air. Which ocean process exposes the coastal aquatic organisms to land-based predators? a. Changing wind patterns alter the ocean currents, changing tide levels. b. Daily tidal patterns leave areas exposed to the land for part of the day. c. The constant wave action generates nutrients that attract predators. d. The ocean conveyor belt raises and lowers the water levels on the coasts.

Answers

Answer:

b

Explanation:

The correct answer as to the ocean process that exposes the coastal organisms to land-based predators would be the daily tidal patterns that leave the coastal area exposed to the land for a part of the day.

Some parts of the coastal areas become exposed to land during certain periods of the day as a result of tidal waves. When this happens, the aquatic organisms occupying these coastal areas become temporarily exposed to land predators who hunt and kill them for food.

Therefore, the correct option is b.

Which of the following is an example of reproductive isolation?

Answers

Answer:

the example of reproductive isolation is temporal isolation, ecological isolation, behavioral isolation, mechanical isolation.


is the basic unit of structure and function of living things.

Answers

Answer:

cells

Explanation:

is the basic unit of life :)

The ostrich is a bird. However, it has traits that are different from those of the birds we typically see flying around our neighborhoods. Using credible sources, investigate the environment and adaptations of ostriches to explain how they evolved to survive in their environment.

Answers

Answer:

According to National Geographic, ostriches are a part of a very small group of birds that cannot fly because unlike most birds, their small wings are not strong enough to carry their body for flight and their breastbone isn't balanced enough for flying. Birds that are unable to fly are called ratites.

A number of scientists namely Thomas Huxley, Richard Owen, and others have tried to show that these ratites are actually related to each other and eventually, it was discovered that they all had one thing in common, the way the bones at the roof of the mouth were arranged was similar to that of reptiles rather than other birds.

Richard Owen found and assembled the remains of an extinct ostrich skeleton which was an extinct moa and contrary to already held opinion, one ratite known as tinamous did not really fit with the profile of a ratite because it could fly, even though almost grudgingly and they possessed keeled sternum which suggests that they evolved from flying birds.

DNA tests showed that tinamous evolved within ratites and not necessarily as a separate entity. The tests also showed that moas and tinamous are related.

It was also speculated that the division of the supercontinent Pangaea southern side led to the separation of flightless ratite ancestors, causing each landlocked group to evolve and become the flightless birds we know today such as the ostrich, rheas, etc.

Answer:

An ostrich is an extremely large bird that lives in Africa. It can’t fly, but it has powerful legs that allow it to outrun most predators. Its flexible knees and two-toed feet enable it to run easily. An ostrich has strong leg muscles that it can use to kick large predators. It has claws on its wings to defend itself from predators and thick feathers to keep it warm at night. Ostriches have thick eyelids that protect their eyes from sandstorms.

Explanation:

Which conclusion can be drawn from the experimental observation that a single strand of DNA contains 2100 dA residues and 1800 dT residues?

Answers

a. There must have been some loss of material in the extraction because the number of dA and dT residues must be the same.

b. This is a palindromic sequence.

c. There must be 2100 dT and 1800 dA residues on the complementary strand.

d. This must be prokaryotic DNA

e. None of these

Answer:

c. There must be 2100 dT and 1800 dA residues on the complementary strand.

2. Name the sympathetic ganglia in which the preganglionic and postganglionic neurons synapse.

Answers

Answer:

The paravertebral ganglia is the sympathetic ganglia where the pre-ganglionic and post-ganglionic neurons synapse.

Explanation:


Identify the organelle where photosynthesis takes place.

B

C

D

E

Answers

Answer:

E

Explanation:

If E is the Chloroplasts, where photosynthesis takes place, then the answer is E.

Answer:

E

Explanation:

I need help with this

Answers

Answer:

I know the answer

Explanation:

Yes

Yes

Yes

Taxonomists today tend to group organisms into the same category based on similar what?

Answers

Answer:

characteristics

Explanation:

oranisms are grouped based on shared characteristics

Taxonomists today tend to group organisms into the same category based on their evolutionary history and shared ancestry, as explained in Option A, as this allows taxonomists to construct more accurate and detailed phylogenetic trees.

What is taxonomy?

The field of taxonomy is concerned with the classification of living organisms based on their shared characteristics, the aim of taxonomy is to group organisms in a way that reflects their evolutionary history and to provide a standardized system of naming, while earlier taxonomists relied on morphological characteristics, such as the physical appearance of an organism, but modern taxonomists instead use molecular and genetic data to group organisms into categories.

Hence, taxonomists today tend to group organisms into the same category based on their evolutionary histories and shared ancestry, as explained in Option A.

Learn more about the taxonomy here.

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The question is incomplete, complete question is below

Taxonomists today tend to group organisms into the same category based on similar what?

A)based on their evolutionary histories and shared ancestry

B)based on fossils

ASAP What is a photosynthetic pigment? What is a photosynthetic pigment? A. An oxygen based compound that captures light energy. B. A light sensitive compound that changes color. C. A colored compound that captures light energy. D. A manmade compound that reacts to light.

Answers

I think the answer is A.

Answer:

A. An oxygen based compound that captures light energy.

all of the following are examples of organic matter soil except

Answers

This question is incomplete; here is the complete question:

All of the following are examples of organic matter soil except

A. Decaying plants

B. Bacteria

C. Fungi

D. Water

The answer to this question is D. Water

Explanation:

Organic matter derives from living beings, due to this, organic matter is considered as a biological product. In this context, materials such as decaying plants are organic matter because they derive from living organisms and contain biological molecules (most contain carbon). This category does not apply to water, which is composed of hydrogen and oxygen and does not derive from living beings. Thus, the one that is not organic matter is water.

Answer:

D. Water

Hope this Helps!! :))

Choose only one correct option. Explanation needed.

Answers

Answer: D

only green plants

Answer:

[tex]\large \boxed{\mathrm{D. \ Photosynthesis}}[/tex]

Explanation:

Photosynthesis is a characteristic present in plants. Photosynthesis is a process where plants transform light energy into chemical energy. Reproduction, respiration, and excretion are all characteristics of living organisms.

PLS HELP ME OUT WITH THIS ANSWER........ WHAT IS DINOFLAGELLATES ?

Answers

Answer:

These are single-celled MESOKARYOTES constituting the phylum DINOFLAGELLATA

Explanation:

Their populations are distributed depending on sea surface temperature,e.t.c.

Hope it helps.

• They are basically unicellular, motile, biflagellate and photosynthetic protists. Predominate colour is golden brown but yellow, green, red and even blue also exists.Some Dinoflagellates like Gymnodinium and Gonyaulax grow in large number in the sea and make the water look red and cause the so called “red tide”.

Drag each tile to the correct box. Place the items in order from lowest to highest degree of internal organization. Please answer 1st at the top and last at the botttom

Answers

Answer:

Lowest to highest degree of internal organization form the given items are:

1) Digestive system: Digestive system is a type of organ system, which is consist of several digestive organs such as mouth, stomach, pancrease and intestine.

2) Stomach: Stomach is a type of organn which is a functional group of tissues.

3) Stomach lining tissues: These are functional group of cells.

4) Epithelial stomach cell: cell is a basic unit of all life.

Hence, the correct order form loowest to highest degree of internal organization is:

Digestive system => Stomach => Stomach lining tissues => Epithelial stomach cell

blood consists of which fluid medium
a.lymph
b.platelets
c.plasma
d.all of these

Answers

Answer:

C. Plasma

Explanation:

Blood consists of a fluid medium called Plasma.

A purebred tall pea plant is cross-pollinated with a tall, can you please help
heterozygous pea plant. Use a Punnett square to determine the probability the offspring inherita
recessive short allele. (I point)
75%
25%
0%
50%

Answers

Answer:

50%

Explanation:

because if you use the box method you see that half receive a short alele

   T     t

T TT  Tt

T TT   Tt

write a poem about culture
give expiation for your answer
and describe how to write poem
and don't forget to write poem about culture?
please please answer this question ​

Answers

Explanation:my culture is pakistan and it's tradition and colours are well , most people decorate the buses on 14th august people do face painting and make delicious food in world there are many types of cultures and tradition, which people celebrate once in a year

I HOPE WHOEVER YOU ARE LOVE THE POEM AND PLEASE LIKE YOUR CULTURE IN WHATEVER COUNTRY YOU ARE BORN BECUASE IT'S YOUR COUNTRY WHICH IS BEAUTIFUL LIKE MY COUNTRY.

Properties of Water Lab Report

Instructions: Choose a property of water and design an experiment to test the property. Use the following lab template to ensure all lab report components are included.

Title:

Objective(s):
Identify the purpose of your investigation or the question you are attempting to answer. Be sure to tie in the property of water you are testing.

Safety Notes:
Always have parent(s) or guardian(s) permission and supervision when performing a lab activity at home.
Wear proper protective clothing and eyewear when needed.
Be sure to dispose of all materials properly.
Always wash your hands carefully after touching anything in a lab investigation.
Hypothesis:

Variables:
Independent Variable:
Dependent Variable:
Controlled Variable:

Materials:

Procedure:
The procedure should be clear and detailed so that others can repeat it. The details should be specific in how the procedure changes the independent variable, controls all variables that need to be controlled, and observes or measures the resulting changes to the dependent variable.

Data and Observations:
Present all data and observations in a neat and organized manner. Include tables and graphs where appropriate/possible.



Conclusion:
Be sure to answer the following reflection questions as a summary in the conclusion of your lab report:
Was your hypothesis correct? Why or why not?
What were the results of your experiment?
What changes would you make if you were to repeat the experiment?

Questions:
Using what you have learned in the lesson and the experiment, answer the following question in complete sentences.
Analyze the property of water you investigated and provide some real-world applications of the importance of this property of water.

Answers

Answer:

Hypothesis: I think the penny will hold more droplets plain water because adding soap to the water will disrupt surface tension

Independent variable: Penny and water dropper

Dependent variable: plain water

Independent variable:soapy water

Hope this helped

A paleontologist finds a relatively complete skeleton but isn’t sure if it is an ape fossil or a hominid fossil. Which of the following features would NOT help distinguish between the two choices?
a. position of the opening in the skull for the spinal cord
b. design of the pelvis
c. relative length of the hind limbs
d. position of the eyes

Answers

c. relative length of the hind limbs. Overall fossilized apes and hominids are 90+% similar in the past 3.5 million years since Australopithecus afarensis but this one aspect of upper vs. lower limbs is the greatest difference. Hope this helps!

Which of the following is an example of a non-mendelian pattern of inheritance? A) all traits are inherited through patterns found by Mendel. B) when individuals with the genotype BB cross, all the offspring have brown fur. C) when pea plants that are hetero-zygous for a certain trait cross some of the offspring express both distinct versions of the trait. D) when horses that are homo-zygous for red hair are crossed with horses that are homo-zygous for white hair, the offspring have both red and white hair.

Answers

The correct answer is B

When a bacterium such as E. coli is shifted from a warmer growth temperature to a cooler growth temperature, it compensates by

Answers

Question is incomplete, The complete question is as follows:

When a bacterium such as E. coli is shifted from a warmer growth temperature to a cooler growth temperature, it compensates by:

A) increasing its metabolic rate to generate more heat.

B) putting longer-chain fatty acids into its membranes.

C) putting more unsaturated fatty acids into its membranes.

D) shifting from aerobic to anaerobic metabolism.

E) synthesizing thicker membranes to insulate the cell.

Answer:

C) putting more unsaturated fatty acids into its membranes.

Explanation:

Bacteria has the ability to change the composition of fatty acid present in its cell membrane to compensate the change in temperature.

When bacterium E.Coli will shift from hight or warmer temperature to low or cooler temperature, it will put more unsaturated fatty acids into its membranes which will mintain the fluidity in the membrane.

Hence, the correct option is "C".

Which of the circumstances below most accurately describes conditions that are likely to permit a robust anti-tumor adaptive immune response?

a. A tumor with high expression of proteins that have mutations in sequences encoding HLA-binding peptides.
b. A robust acute inflammatory response to PAMPs expressed specifically by tumor cells.
c. Anti-tumor T lymphocytes that have high expression of CTLA-4.
d. A tumor with high expression of PD-L1.

Answers

Did you ever figure out the answer to this question?

The study of PAMP-DAMP complexes is vital to the advancement of knowledge regarding inflammatory disorders in general and cancer in particular. Therefore, option (B) is correct.

What is PAMP-DAMP complexes?

Increasing evidence links inflammation to cancer, and at the root of inflammation are PAMPs and DAMPs (DAMPs). Microorganisms contain PAMPs, which are detected by pattern recognition receptors on monocytes and DCs (PRRs). PRR activation produces pro-inflammatory cytokines.

A robust immune response requires endogenous chemicals that pose 'risk' to self-tissues and are created by injured or stressed cells; these are DAMPs, which also trigger inflammation. PAMPs and DAMPs each have about 100 receptors. PAMPs and DAMPs interact; a PRR can bind to both. In this system, PAMPs and DAMPs affect each other's activation threshold. Thus, PAMP-DAMP relationships describe inflammation in a predictable 'inflammatory code'

PAMP-DAMP complexes are key to understanding inflammatory disorders and cancer.

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Which is a feature of a tonic receptor? Select one: a. The action potential occurs when there is a change in response to a change in condition. b. For this receptor, the stimulus begins with a burst of action potentials. c. They are normally inactive. d. When the stimulus changes the action potential generation changes. e. Provides information about the rate and change of the stimulus. f. The action potential is generated for a short time period.

Answers

Answer:

For this receptor, the stimulus begins with an explosion of action potentials.

that would be the correct option.

Explanation:

A tonic receptor is one that is activated when the action potentials were maintained over time and during the signaling of the receptor.

Tone receptors require continuous stimulation over a period of time to trigger a response and deliver it to the central nervous system.

It keeps the nervous system constantly active in the environment that surrounds it.

They are slowly adaptable, an example of these receptors are the merkel and ruffini receptors.

Other Questions
Many cultures have shamans, or spiritual guides, who assist individuals on spiritual journeys to the "underworld" or some other non-earthly realm. These shamanic journeys would likely be considered part of how many are 5 raised to 4 ??? Which statement below best captures the overall point and focus of the New York Times article, Document 3?A) The article expresses deep surprise and anxiety on the part of the New York Times' editorial board, about the idea of blacks playing for their beloved Brooklyn Dodgers. B) The article's intent is to show sympathy for the ballplayers from southern states who are being asked to change their ways and beliefs so quickly. C) The news story marks the historical event of the first black man being called up to play in the major leagues and expresses some concern over how Robinson will be treated by his major league peers. D) The main focus of the article is on the shrewd business instincts of Branch Rickey and his desire to "tap" into the market for ticket sales to black New Yorkers. Is this answer correct? Zane, a new employee, is eager to get a promotion soon, and he hopes he can quickly rise through the ranks at the company. He decides to ask his supervisor, Mary, for professional development advice. This is an example of which of the following types of communication? a. Downward b. None of these are correct. c. Upward d. Horizontal e. Diagonal Felix launched both a Google Search Ad campaign and a Google Display Ad campaign to drive sales of tools on his home improvement website. He reviewed his sales data after two weeks and noticed his Search Ad campaign is the most successful. Which optimization type should Felix use if he wants to use bidding or targeting to acquire more customers? What was an impact of settlement on the environment of the West? Settlers and travelers destroyed buffalo herds. The railroad industry boosted local economies. Innovations in communications were developed. Suffrage movements expanded to new territories. You are holding on to one end of a long string that is fastened to a rigid steel light pole. After producing a wave pulse that was 5 mm high and 4 em wide, you want to produce a pulse that is 4 cm wide but 7 mm high. You must move your hand up and down once, a. a smaller distance up, but take a shorter time. b. the same distance up as before, but take a shorter time. c. a greater distance up, but take a longer time. d. the same distance up as before, but take a longer time. e. a greater distance up, but take the same time. Is 4.05 repeating equivalent to 405/99 A certain mixture of paint contains 5 parts white paint for every 4 parts blue paint. If a can of paint contains 75 ounces of white paint, how many ounces of blue paint are in the can? Evaluate the expression for x= 3 and y= 6.51x + y + 3 Digby's turnover rate for this year is 6.33%. This rate is projected to remain the same next year and no further downsizing will occur from automating. What would the total recruiting cost be for Digby, assuming it spends the same amount extra above the $1,000 recruiting base as they did this year? please help !!!!The British Parliament believed that the English colonies were there for the economic benefit of England. ____ defines this belief? Find the volume. Show work plz 5.4(m-2)= -2(3m+3) please help asap write down the reading shown on the instrument above in units of the instrument HELPPPP Name the three states of matter. Describe the arrangement and movement of atoms in a substance for each state. Assume the Residential Division of KappyKappy Faucets had the following results last year:Net sales $6,360,000Operating income 636,000Average total assets 5,300,000Management's target rate of return 16%What is the division's return on investment? The bookkeeper for the company has prepared the following balance sheet as at December 31, 2018: Cameron Corp Balance Sheet December 31, 2019 Current Liabilities Long-term Liabilities Shareholders' Equity $.237.500 437,500 494,800 Cash Accounts Receivable (net) Inventories Investments Land Building (net) Copyright (net) $ 40,250 (1) 85,550 (2) 105,000 (3) 60,000 (4) 350,000 (5) 525,000 (6) 4.000 (7) $1.169,800 $1.169.800 The following additional information is provided: 1. The cash balance includes: Petty cash fund Cash advance to employee, payable on demand Saving Account at TD Bank Certificate of deposit (90-days) Chequing account at the Bank of Montreal Bank overdraft at the Scotia Bank Total $ 250 1,000 23,000 10.000 6,750 (750) S_40.250 2. The allowance for doubtful accounts $7,750. 3. - The net realizable value of the inventory that is included in the Balance Sheet is $100,000.- - Inventories do not include $15,000 of merchandise that was in transit at December 31, which was sold to a customer with terms f.o.b. destination. The inventory reached the customer on January 5, 2020 - Inventories also do not include $20,000 inventory that was received by Royale Ltd. for consignment. 4. The investments section includes the following: notes receivable that was issued on September 1st, 2019 bearing interest at 6% and due on August 31, 2020 $20,000; long-term FV-OCI investment $30,000 carrying value (fair value $26,000 at December 31,2019); and FV-NI Investment 500 common shares of Landon Inc. purchased at $10.00 per share (fair value $11.50 per share at December 31,2019). The company expects to sell the FV-NI shares as soon as the market price increases next year. 5. The land balance includes: land used for operations and recorded at its appraised value of $350,000 (the original cost of the land was $275,000). The company uses the historical cost method to account for property, plant & equipment. 6. The building originally cost $750,000. Depreciation for 2019 has already been recorded. 7. The copyright originally cost $10,000 and is being amortized over 5 years on a straight-line basis. Amortization for 2019 had already been recorded. 8. The company borrowed $50,000 from ABC Bank. The bank charges 5% and the loan is due May 1st 2025. As part of the bank loan, ABC Bank required Cameron Corp. to pledge their building as security for the loan (in other words it is the banks collateral). How to do adjustment in Inventories in part (3) and Investment in part (4)? The following data relate to factory overhead cost for the production of 10,000 computers: Actual: Variable factory overhead $262,000 Fixed factory overhead 90,000 Standard: 14,000 hrs. at $25 350,000 If productive capacity of 100% was 15,000 hours and the total factory overhead cost budgeted at the level of 14,000 standard hours was $356,000, determine the variable factory overhead controllable variance, fixed factory overhead volume variance, and total factory overhead cost variance. The fixed factory overhead rate was $6.00 per hour. Enter a favorable variance as a negative number using a minus sign and an unfavorable variance as a positive number.