What is a characteristic feature of acarrier protein in a plasma membrane ?

What is a characteristic feature of acarrier protein in a plasma membrane ?
by

1 Answer

Answer :

Carrier proteins are globular proteins which are specific it their action and thus regulate the entry and exit of particles into the cell. They help in the conduction of ionic substances and polar substances   
by
selected

Related questions

Why does DNA twist ?

Description : Why does DNA twist ?

Last Answer : If it did not twist, would you expect it to fit into the miniscule cell? As we all know, if we join all of the DNA molecules from a person's body end to end, we would get length three times ... water does not push straight up into thecover slip, but pushes at an angle, which allows it to run out.

What is the difference between an acid and a base ?

Description : What is the difference between an acid and a base ?

Last Answer : Base is any thing, which has a capability to abstract a proton. Using the simplest definition, an acid is something when added to water releases hydrogen ions (H+), also called protons. A ... . According to this definition, acids are electron pair acceptors, and bases are electron pair donors.

What is an analogy for a smooth endoplasmic reticulum ?

Description : What is an analogy for a smooth endoplasmic reticulum ?

Last Answer : Endoplasmic reticulum (ER) is like a manufacturing plant, like a factory, where proteins and lipids are made. This is also where things are packaged into boxed and sent off to different ... Golgi apparatus. It is usually prominent in cells that specialize in lipid metabolism and synthesis.

What is an analogy for microtubules ?

Description : What is an analogy for microtubules ?

Last Answer : Microtubules have two main functions in cells and in doing so act like a skeleton as well as like railroadtracks. Microtubules are the main structural component of the cytoskeleton in cells, ... cytoplasm through transport proteins called kinesins and dyneins, which act much like railroad cars.

How does the odor of flower petals help pollination ?

Description : How does the odor of flower petals help pollination ?

Last Answer : The purpose of the perfume is to attract a pollinator - insect, bat, bird or whatever. The reward for the pollinator is a meal of nectar, which is produced by the flower.

He proposed a two-part naming system ?

Description : He proposed a two-part naming system ?

Last Answer : which classifies every living organism with a string of Latin and Greek identifiers. Full names are devised starting with kingdom and extending downward through phylum, subphylum, class, order, family, genus ... of the organism and used to prevent the confusion that may arise with common names.

Who created the two-part naming system used in biology ?

Description : Who created the two-part naming system used in biology ?

Last Answer : The scientific naming system that is used worldwide today was first devised by Swedish naturalist Carl Linnaeus in

Why do organisms live in certain places ?

Description : Why do organisms live in certain places ?

Last Answer : Think of that, the temperature difference in the desert is huge. So in order to survive, the cactus plant reduces heat gain and heat loss as well as water loss. (E.g. narrow pin shaped leaves, long extensive roots)

What is an analogy for a smooth endoplasmic reticulum ?

Description : What is an analogy for a smooth endoplasmic reticulum ?

Last Answer : Endoplasmic reticulum (ER) is like a manufacturing plant, like a factory, where proteins and lipids are made. This is also where things are packaged into boxed and sent off to different ... the Golgi apparatus. It is usually prominent in cells that specialize in lipidmetabolism and synthesis.

What are analogies for centrioles ?

Description : What are analogies for centrioles ?

Last Answer : A Centriole is like a straw because they both are tubesthat let things get from one end to the other end. The centriole has a round look to it because it is made from nine triplets of microtubules that make a straw-like (as said above) look.

What are living and nonliving reservoirs ?

Description : What are living and nonliving reservoirs ?

Last Answer : Viruses are both living as well as non-living. They have reservoirs of genes. A single nucleotide is a unit of gene. Viral genes make use of host raw material (non-living elements/organic moieties/ ... to scientific name of any other living organism i.e. Tobacco mosaicvirus (read as italic).

What is a burette and how is it used ?

Description : What is a burette and how is it used ?

Last Answer : A burette is a uniform-bore glass tube with fine gradations and a stopcock at the bottom, used especially in laboratory procedures for accurate fluid dispensing and measurement. The burette ... is simultaneously occupied by the presences of a liquid measuring and transferring this derailment.

What is the difference between xylem and phloem ?

Description : What is the difference between xylem and phloem ?

Last Answer : Both xylem and phloem are vascular tissues found in a plant. Xylem is a tubular structure, which is responsible for water transport from the roots towards all of the parts of the plant. Phloem ... the other hand, is responsible for the transportation of food and other nutrients needed by plant.

How do you determine if a molecule is polar or non-polar ?

Description : How do you determine if a molecule is polar or non-polar ?

Last Answer : A polar molecule is a molecule that has a net dipole moment due to its having unsymmetrical polar bonds. Two factors go into determining if a molecule is a polar. To determine if a molecule (or ion ... The polarity of the individual bonds in the molecule; 2) The shape or geometry of the molecule

How does caffeine effect plant growth ?

Description : How does caffeine effect plant growth ?

Last Answer : Minerals like potassium are often found alongside caffeine when it occurs in plant sources like coffee beans, and that could help the plant grow faster. However, the caffeine itself would be unlikely to have ... it and the plant grew at normal rate but the leaves were more wrinkly and browner

In QAM,both ________ of acarrier frequencyare varied. A) frequencyand amplitude B) phase andfrequency C) amplitudeand phase D) none of the above

Description : In QAM,both ________ of acarrier frequencyare varied. A) frequencyand amplitude B) phase andfrequency C) amplitudeand phase D) none of the above

Last Answer : amplitudeand phase

What characteristic of the plasma membrane allows selective molecules to pass through it?

Description : What characteristic of the plasma membrane allows selective molecules to pass through it?

Last Answer : It is semi-permeable.

A striking feature of living cells is a marked difference between the composition of the cytosol and the extracellular milieu. Which of the following statement(s) concerning the mechanisms of maintenance of these differences is/are true? a. The cell membrane is able to maintain a 10,000 fold gradient between the extracellular concentration of ionized calcium and the intracellular concentration b. The key to these differences is the fact that the plasma membrane is normally impermeable to sodium, potassium and calcium c. The selectivity of biologic membranes is highly consistent and seldom changes d. The selectivity of cell membranes relates only to ions and not organic compounds

Description : A striking feature of living cells is a marked difference between the composition of the cytosol and the extracellular milieu. Which of the following statement(s) concerning the mechanisms of maintenance ... d. The selectivity of cell membranes relates only to ions and not organic compounds

Last Answer : Answer: a The survival of the cell requires that cytosolic composition be maintained within narrow limits, despite the constant influx of nutrients and the simultaneous outflow of waste. A ... be altered drastically as a result of regulatory or signaling processes that occur within the cell

The unifying feature of the archaea that distinguishes them from the bacteria is A- habitats which are extreme environments with regard to acidity B- absence of a nuclear membrane temperature C- presence of a cell wall containing a characteristic outer membrane D- cytoplasmic ribosomes that are 70S

Description : The unifying feature of the archaea that distinguishes them from the bacteria is A- habitats which are extreme environments with regard to acidity B- absence of a nuclear membrane temperature ... of a cell wall containing a characteristic outer membrane D- cytoplasmic ribosomes that are 70S

Last Answer : absence of a nuclear membrane temperature

Answer: a, b, c, d Free oxygen radicals are chemical species that are intermediates in the normal process of cellular respiration. Oxidants that are free radicals have been implicated as initiators of reactions which lead to a variety of cellular injuries. Oxidants are derived from several sources, notably phagocytes. Among the effects of oxygen free radicals are membrane lipid peroxidation, DNA strand breaks, cytoskeletal disassembly and inhibition of glucose metabolism leading to decreased cellular ATP concentrations. (Figure 6-16) 187 Which of the following acute-phase protein levels are increased in human plasma following acute inflammation? a. C-reactive protein b. Serum amyloid c. a -Proteinase inhibitor d. Fibrinogen e. Albumin

Description : Answer: a, b, c, d Free oxygen radicals are chemical species that are intermediates in the normal process of cellular respiration. Oxidants that are free radicals have been implicated as initiators of ... a. C-reactive protein b. Serum amyloid c. a -Proteinase inhibitor d. Fibrinogen e. Albumin

Last Answer : Answer: a, b, c, d The acute-phase response is a series of homeostatic responses of the organism to tissue injury in infection and inflammation. After an inflammatory stimulus occurs, a number ... 30% to 50% of the level before injury. The reason for the decrease in production is poorly understood

Plasma membrane in eukaryotic cells is made up of - (1) Phospholipid (2) Lipoprotein (3) Phospholipo-protein (4) Phospho-protein

Description : Plasma membrane in eukaryotic cells is made up of - (1) Phospholipid (2) Lipoprotein (3) Phospholipo-protein (4) Phospho-protein

Last Answer : (1) Phospholipid Explanation: The cell membrane or plasma membrane is a biological membrane that separates the interior of all cells from the outside environment. The cell membrane is selectively permeable ... . The basic function of the cell membrane is to protect the cell from its surroundings.

The plasma membrane consists mainly of (a) phospholipids embedded in a protein bilayer (b) proteins embedded in a phospholipid bilayer (c) proteins embedded in a polymer of glucose molecules (d) proteins embedded in a carbohydrate bilayer

Description : The plasma membrane consists mainly of (a) phospholipids embedded in a protein bilayer (b) proteins embedded in a phospholipid bilayer (c) proteins embedded in a polymer of glucose molecules (d) proteins embedded in a carbohydrate bilayer

Last Answer : (b) proteins embedded in a phospholipid bilayer

Dolichol phosphate is A- a complex lipid involved in docking vesicles with the plasma membrane B- the anchor on which sugars assemble before transfer to proteins C- a chaperone used in protein folding D- a product of phospholipase C activation

Description : Dolichol phosphate is A- a complex lipid involved in docking vesicles with the plasma membrane B- the anchor on which sugars assemble before transfer to proteins C- a chaperone used in protein folding D- a product of phospholipase C activation

Last Answer : the anchor on which sugars assemble before transfer to proteins

The mode of action of polymyxin is to A- inhibit protein synthesis B- inhibit DNA synthesis C- injury to the plasma membrane D- inhibit folic acid synthesis

Description : The mode of action of polymyxin is to A- inhibit protein synthesis B- inhibit DNA synthesis C- injury to the plasma membrane D- inhibit folic acid synthesis

Last Answer : injury to the plasma membrane

Which does NOT occur in a cell stimulated by a steroid hormone? A) The steroid hormone enters the cell by crossing the plasma membrane. B) The hormone binds to a receptor molecule in the cytoplasm. C) The second messenger cyclic AMP is stimulated by the hormone-receptor complex. D) The hormone-receptor complex binds the chromatin and activates certain genes. E) DNA is transcribed, mRNA is translated, and the result is protein synthesis.

Description : Which does NOT occur in a cell stimulated by a steroid hormone? A) The steroid hormone enters the cell by crossing the plasma membrane. B) The hormone binds to a receptor molecule in the ... activates certain genes. E) DNA is transcribed, mRNA is translated, and the result is protein synthesis.

Last Answer : C) The second messenger cyclic AMP is stimulated by the hormone-receptor complex. D) The hormone-receptor complex binds the chromatin and activates certain genes.

Which is associated with a steroid hormone? A) cyclic AMP B) the second messenger system C) production of new proteins D) activation of proteins present in an inactive form E) binding of a protein to a surface receptor on the plasma membrane

Description : Which is associated with a steroid hormone? A) cyclic AMP B) the second messenger system C) production of new proteins D) activation of proteins present in an inactive form E) binding of a protein to a surface receptor on the plasma membrane

Last Answer : C) production of new proteins

Plasma membrane in eukaryotic cells is made up of (1) Phospholipid (2) Lipoprotein (3) Phospholipo-protein (4) Phospho-protein

Description : Plasma membrane in eukaryotic cells is made up of (1) Phospholipid (2) Lipoprotein (3) Phospholipo-protein (4) Phospho-protein

Last Answer : Phospholipid

The distinctive feature(s) of methadone compared to morphine is/are: A. High oral bioavailability B. High plasma protein and tissue binding C. Delayed and milder withdrawal symptoms in dependent subjects D. All of the above

Description : The distinctive feature(s) of methadone compared to morphine is/are: A. High oral bioavailability B. High plasma protein and tissue binding C. Delayed and milder withdrawal symptoms in dependent subjects D. All of the above

Last Answer : D. All of the above

Marked redistribution is a feature of: A. Highly lipid soluble drugs B. Poorly lipid soluble drugs C. Depot preparations D. Highly plasma protein bound drugs

Description : Marked redistribution is a feature of: A. Highly lipid soluble drugs B. Poorly lipid soluble drugs C. Depot preparations D. Highly plasma protein bound drugs

Last Answer : A. Highly lipid soluble drugs

Marked redistribution is a feature of: A. Highly lipid soluble drugs B. Poorly lipid soluble drugs C. Depot preparations D. Highly plasma protein bound drugs

Description : Marked redistribution is a feature of: A. Highly lipid soluble drugs B. Poorly lipid soluble drugs C. Depot preparations D. Highly plasma protein bound drugs

Last Answer : A. Highly lipid soluble drugs

Marked redistribution is a feature of: A. Highly lipid soluble drugs B. Poorly lipid soluble drugs C. Depot preparations D. Highly plasma protein bound drugs

Description : Marked redistribution is a feature of: A. Highly lipid soluble drugs B. Poorly lipid soluble drugs C. Depot preparations D. Highly plasma protein bound drugs

Last Answer : A. Highly lipid soluble drugs

What is the function of the plasma membrane?

Description : What is the function of the plasma membrane?

Last Answer : A: The plasma membrane is responsible for regulating the passage of molecules into and out of the cell, and also provides structural support and protection to the cell.

What is the function of the plasma membrane?

Description : What is the function of the plasma membrane?

Last Answer : A: The plasma membrane regulates the passage of materials in and out of the cell, and helps to maintain the cell's internal environment.

What would happen if the plasma membrane ruptures or breaks down? -Science

Description : What would happen if the plasma membrane ruptures or breaks down? -Science

Last Answer : If the plasma membrane ruptures or breakdown then the cell will not be able to exchange material from its surrounding by diffusion or osmosis. Thereafter the protoplasmic material will be disappeared and the cell will die.

Plasma membrane is made up of which two components? -Biology 9th

Description : Plasma membrane is made up of which two components? -Biology 9th

Last Answer : answer:

Explain the association of carbohydrate to the plasma membrane. -Biology

Description : Explain the association of carbohydrate to the plasma membrane. -Biology

Last Answer : hey mate here is your answer... Explanation: ☑️ It forms glycolipids and glycoproteins on the outer surface of plasma membrane. The association functions as recognition centres, antigens, receptors and sites for attachment. Hope it helps!!✌️

What are the functions of plasma membrane? -Biology

Description : What are the functions of plasma membrane? -Biology

Last Answer : answer:

How do neutral solutes move across the plasma membrane? -Biology

Description : How do neutral solutes move across the plasma membrane? -Biology

Last Answer : answer:

What is the biochemical composition of plasma membrane? -Biology

Description : What is the biochemical composition of plasma membrane? -Biology

Last Answer : answer:

Functions of plasma membrane in a cell. -Biology

Description : Functions of plasma membrane in a cell. -Biology

Last Answer : answer:

Cytoplasm vs plasma membrane? -Biology

Description : Cytoplasm vs plasma membrane? -Biology

Last Answer : answer:

Cytoplasm vs plasma membrane? -Biology

Description : Cytoplasm vs plasma membrane? -Biology

Last Answer : answer:

On the outside of the plasma membrane, _____ act as signals or markers to help cells recognize one another?

Description : On the outside of the plasma membrane, _____ act as signals or markers to help cells recognize one another?

Last Answer : carbohydrates

What is Plasma Membrane ?

Description : What is Plasma Membrane ?

Last Answer : : The elastic and semi-permeable living membrane that surrounds all pratoplasm beneath the cell wall is called plasma membrane , cell membrane , cytomembrane or cell membrane.

$ The biomembrane which surrounds a vacuole is called Tonoplast. ! Ribosomes have a plasma membrane.

Description : $ The biomembrane which surrounds a vacuole is called Tonoplast. ! Ribosomes have a plasma membrane.

Last Answer : $ The biomembrane which surrounds a vacuole is called Tonoplast. ! Ribosomes have a plasma membrane. A. If ... wrong D. If both As and R are wrong.

The figure given below show the structure of plasma membrane, with its parts labelled from A to E, Identify the correct :-

Description : The figure given below show the structure of plasma membrane, with its parts labelled from A to E, Identify the correct :-

Last Answer : The figure given below show the structure of plasma membrane, with its parts labelled from A ... . `Dto` Its polar tail contain saturated hydrocarbon

The plasma membrane consists mainly of

Description : The plasma membrane consists mainly of

Last Answer : The plasma membrane consists mainly of A. proteins embedded in a carbohydrate bilayer B. proteins ... embedded in a polymer of glucose molecules D.

Steroid hormones easily pass through plasma membrane by simple diffusions because by

Description : Steroid hormones easily pass through plasma membrane by simple diffusions because by

Last Answer : Steroid hormones easily pass through plasma membrane by simple diffusions because by A. Are lipid- ... through pores D. Contains carbon and hydrogen

Give the functions of plasma membrane.

Description : Give the functions of plasma membrane.

Last Answer : Give the functions of plasma membrane.

Explain the structure of plasma membrane on the basis of Fluid mosaic model.

Description : Explain the structure of plasma membrane on the basis of Fluid mosaic model.

Last Answer : Explain the structure of plasma membrane on the basis of Fluid mosaic model.