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lozanna [386]
1 year ago
7

g protein-coupled receptors are the largest family of cell surface receptors. each receptor passes through the plasma membrane h

ow many times?
Biology
1 answer:
ziro4ka [17]1 year ago
5 0

They are known as seven-transmembrane receptors because of the number of times (7 times) they travel through the cell membrane while interacting with G proteins.

Each GPCR is extremely specialized to a given signal, and humans alone have about 1,000 distinct GPCRs. GPCRs are made up of a single polypeptide that has been folded into a globular shape and encased in a cell's plasma membrane. The biggest family of receptors and membrane proteins in the human genome are G protein-coupled receptors (GPCRs), which have about 800 members, of which half are olfactory. Numerous endogenous signaling molecules can activate GPCRs, which are involved in various physiological processes.

As a result, we can state that the seven-transmembrane receptors are so named because they couple with G proteins and pass through the cell membrane seven times.

LEARN MORE ABOUT G PROTEIN HERE:

brainly.com/question/14484159

#SPJ4

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The total energy of motion in the particles of a substance; heat energy
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Answer:

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Explanation:

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3 0
3 years ago
Natural selection would favor which of the these rabbits in Antarctica? A) brown rabbit B) white rabbit C) black rabbit D) white
krok68 [10]
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5 0
3 years ago
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Calculate the cardiac output if heart rate (HR) is 90 beats per minute, stroke volume (SV) is 110 ml/beat, end diastolic volume
Yakvenalex [24]

ANSWER: None of the above options are correct.

Cardiac Output(CO) = Stroke Volume(SV) × Heart Rate(HR)

Therefore where HR= 90bpm and SV= 110ml/min,

CO = 90 × 110 = 9900ml/min or 9.9L/min.

EXPLANATION:

CARDIAC OUTPUT is the volume of blood being pumped by the heart into the systemic circulation per minute.

Cardiac output is the product of two variables, stroke volume and heart rate.

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6 0
3 years ago
The drug vinblastine disrupts microtubule polymerization. How would adding vinblastine to a cell affect the constitutive secreto
Kazeer [188]

Answer:

Transport vesicles will not be brought to either the Golgi apparatus or the plasma membrane.

Explanation:

Microtubules forms part of the structure of the cytoskeleton. It is a polymer of tubulins.

Apart from maintaining the cell structure, cytoskeleton plays a role in transportation in a cell.

A Constructive secretory pathway is an exocytosis process found in all eukaryotic cells, in which transport vesicles destined for the plasma membrane leave the trans-Golgi network in a steady stream

A disruption on microtubules will lead to a change in structure of the cytoplasm. It will not be able to perform its function therefore transport vesicles will not be brought to either the plasma membrane or the golgi apparatus.

8 0
3 years ago
100 POINTS!!!!!! Help FAST!!!!!!!!!!!!!!The picture below shows the bone structures of human, cow, and horse.
11111nata11111 [884]

Answer:

option A they have developed from the same organism

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Organs of animals (belonging to different species) which have similar structure but different functions are homologous organs. Such organs have evolved from the same ancestors , however their function are different.  

For example – wings of bats, limb of human etc.  

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The correct answer is option A

7 0
2 years ago
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