What is the selectively permeable membrane of the cell? -Do You Know?

Last Answer : A membrane which controls the movement of materials passing through it is called a selectively permeable membrane. It allows some but not all substances to pass through it.

Which of the following theories explain that plasma membrane is selectively permeable:

Description : 11. Which of the following theories explain that plasma membrane is selectively permeable: (a) Unit membrane theory (b) Cascade theory © Sandwich theory (d) Fluid Mosaic theory

Last Answer : Answer: d Fluid Mosaic theory

Why is the cell membrane considered a semi-permeable membrane? -Biology

Description : Why is the cell membrane considered a semi-permeable membrane? -Biology

Last Answer : answer:

$ The cell membrane helps in pinocytosis and phagocytosis. ! Cell membrane is permeable.

Description : $ The cell membrane helps in pinocytosis and phagocytosis. ! Cell membrane is permeable.

Last Answer : $ The cell membrane helps in pinocytosis and phagocytosis. ! Cell membrane is permeable. A. If both As and ... wrong D. If both As and R are wrong.

What do the terms selective permeability and semi permeable to have to do with the cell membrane?

Description : What do the terms selective permeability and semi permeable to have to do with the cell membrane?

Last Answer : Need answer

What is a semi-permeable membrane? -Biology

Description : What is a semi-permeable membrane? -Biology

Last Answer : answer:

A tube of uniform cross sectional sectional area `1 cm^(2)` is closed at one end with semi permeable membrane. A solution having 6g glucose per 100 ml

Description : A tube of uniform cross sectional sectional area `1 cm^(2)` is closed at one end with semi permeable membrane. A solution having 6g glucose per 100 ml

Last Answer : A tube of uniform cross sectional sectional area `1 cm^(2)` is closed at one end with semi permeable membrane. A ... k^(-1)`, density of Hg=13.8 g/cc)

$ Positive diffusion occurs against the concentration gradients. ! Osmosis does not require a semi-permeable membrane.

Description : $ Positive diffusion occurs against the concentration gradients. ! Osmosis does not require a semi-permeable membrane.

Last Answer : $ Positive diffusion occurs against the concentration gradients. ! Osmosis does not require a semi-permeable ... D. If both As and R are wrong.

What is the process in which water moves from an area of high concentration to an area of low concentration across a selectivity permeable membrane?

Description : What is the process in which water moves from an area of high concentration to an area of low concentration across a selectivity permeable membrane?

Last Answer : Need answer

Mitochondrial membrane is permeable to (A) Short chain fatty acids (B) Medium chain fatty acids (C) Long chain fatty acids (D) All of these

Description : Mitochondrial membrane is permeable to (A) Short chain fatty acids (B) Medium chain fatty acids (C) Long chain fatty acids (D) All of these

Last Answer : Answer : A

In all cells the cytoplasm is externally bounded by a semi - permeable membrane. It is known 4s ..........0+5

Description : In all cells the cytoplasm is externally bounded by a semi - permeable membrane. It is known 4s ..........0+5

Last Answer : Cell membrane/Plasma membrane

Plasma membrane in resting condition is very permeable to a. K b. Cl c. Both d. None of them

Description : Plasma membrane in resting condition is very permeable to a. K b. Cl c. Both d. None of them

Last Answer : Cl

When a neuron is in resting state i.e., not conducting any impulse, the axonal membrane is (a) comparatively more permeable to Na+ ions and nearly impermeable to K+ ions (b) equally permeable to both Na+ and K+ ions (c) impermeable to both Na+ and K+ ions (d) comparatively more permeable to K+ ions and nearly impermeable to Na+ ions.

Description : When a neuron is in resting state i.e., not conducting any impulse, the axonal membrane is (a) comparatively more permeable to Na+ ions and nearly impermeable to K+ ions (b) equally permeable to both ... + and K+ ions (d) comparatively more permeable to K+ ions and nearly impermeable to Na+ ions.

Last Answer : (d) comparatively more permeable to K+ ions and nearly impermeable to Na+ ions.

Which of the following statements regarding mitochondrial membrane is not correct ? (a) The outer membrane resembles a sieve. (b) The outer membrane is permeable to all kinds of molecules. (c) The enzymes of the electron transfer chain are embedded in the outer membrane. (d) The inner membrane is highly convoluted forming a series of infoldings.

Description : Which of the following statements regarding mitochondrial membrane is not correct ? (a) The outer membrane resembles a sieve. (b) The outer membrane is permeable to all kinds of molecules. (c) ... in the outer membrane. (d) The inner membrane is highly convoluted forming a series of infoldings.

Last Answer : (c) The enzymes of the electron transfer chain are embedded in the outer membrane.

Which of the following statements regarding mitochondria is incorrect? (a) Mitochondrial matrix contains single circular DNA molecule and ribosomes. (b) Outer membrane is permeable to monomers of carbohydrates, fats and proteins. (c) Enzymes of electron transport are embedded in outer membrane. (d) Inner membrane is convoluted with infoldings.

Description : Which of the following statements regarding mitochondria is incorrect? (a) Mitochondrial matrix contains single circular DNA molecule and ribosomes. (b) Outer membrane is permeable to monomers of ... transport are embedded in outer membrane. (d) Inner membrane is convoluted with infoldings.

Last Answer : (c) Enzymes of electron transport are embedded in outer membrane.

This antihelminthic agent makes the membrane permeable to calcium ions. a. Mebendazole b. Pentamidine c. Ivermectin. d. Praziquantel

Description : This antihelminthic agent makes the membrane permeable to calcium ions. a. Mebendazole b. Pentamidine c. Ivermectin. d. Praziquantel

Last Answer : d. Praziquantel

The process of diffusion of one liquid into the other through a semi permeable membrane is called (A) Viscosity (B) Osmosis (C) Surface tension (D) Cohesion

Description : The process of diffusion of one liquid into the other through a semi permeable membrane is called (A) Viscosity (B) Osmosis (C) Surface tension (D) Cohesion

Last Answer : Answer: Option B

A semi permeable membrane is stretched across a chamber filled with water. The membrane is only permeable to water. 60 mg of salt is added to the left side of the chamber. Which of the following will happen? (A) Water will move toward the right side (B) salt will move toward the right side (C) Water will move toward the left side (D) salt will move toward the left side

Description : A semi permeable membrane is stretched across a chamber filled with water. The membrane is only permeable to water. 60 mg of salt is added to the left side of the chamber. Which of the following will ... right side (C) Water will move toward the left side (D) salt will move toward the left side

Last Answer : (C) Water will move toward the left side

2G and 2.5G CDMA operators may selectively introduce 3G capabilities at each cell without changing entire base stations and reallocate spectrums. a) True b) False

Description : 2G and 2.5G CDMA operators may selectively introduce 3G capabilities at each cell without changing entire base stations and reallocate spectrums. a) True b) False

Last Answer : a) True

Cyclosporine has the following attributes except: A. It selectively suppresses humoral immunity without affecting cell mediated immunity B. It is more active as immunosuppressant when administered before antigen exposure than after it C. It is not toxic to the bone marrow D. Its major toxicity is kidney damage

Description : Cyclosporine has the following attributes except: A. It selectively suppresses humoral immunity without affecting cell mediated immunity B. It is more active as immunosuppressant when administered before antigen exposure ... It is not toxic to the bone marrow D. Its major toxicity is kidney damage

Last Answer : A. It selectively suppresses humoral immunity without affecting cell mediated immunity

Metronidazole is selectively active against anaerobic organisms because: A. Aerobes have an active transport mechanism to pump it out of their cell B. Only anaerobes reduce it to generate the reactive nitro radical C. It is rapidly inactivated in the presence of oxygen D. It binds to DNA of anaerobes with high affinity

Description : Metronidazole is selectively active against anaerobic organisms because: A. Aerobes have an active transport mechanism to pump it out of their cell B. Only anaerobes reduce it to generate the reactive ... inactivated in the presence of oxygen D. It binds to DNA of anaerobes with high affinity

Last Answer : B. Only anaerobes reduce it to generate the reactive nitro radical

Ws of 1991, the most recent award of a Nobel Prize in medicine to a woman scientist went to this esteemed pharmacologist and biochemist. She shared her prize with George Hitchings for their development of drugs based on understanding basic cell processes. They came up with drugs that selectively block nucleic acid synthesis without damaging normal cells. Name this woman scientist.

Description : Ws of 1991, the most recent award of a Nobel Prize in medicine to a woman scientist went to this esteemed pharmacologist and biochemist. She shared her prize with George Hitchings for ... drugs that selectively block nucleic acid synthesis without damaging normal cells. Name this woman scientist.

Last Answer : ANSWER: (GERTRUDE) ELION

Which cell acts as a semi-permeable screen in a cell ?

Description : Which cell acts as a semi-permeable screen in a cell ?

Last Answer : Answer : The plasma membrane in a cell acts as a semipermeable membrane.

Cell membranes a. consist almost entirely of protein molecules b. are impermeable to fat-soluble substances c. in some tissues permit the transport of glucose at a greater rate in the presence of insulin d. are freely permeable to electrolytes but not to proteins e. have a stable composition throughout the life of the cell

Description : Cell membranes a. consist almost entirely of protein molecules b. are impermeable to fat-soluble substances c. in some tissues permit the transport of glucose at a greater rate in the presence of ... to electrolytes but not to proteins e. have a stable composition throughout the life of the cell

Last Answer : in some tissues permit the transport of glucose at a greater rate in the presence of insulin

Which cell organelle is semi-permeable?

Description : Which cell organelle is semi-permeable?

Last Answer : Plasma membrane

Is the pressure to be Politically Correct selectively applied?

Description : Is the pressure to be Politically Correct selectively applied?

Last Answer : Absolutely. On this site, for example, you get modded if you call someone a liar or a nazi.

Is it possible to be selectively allergic to something?

Description : Is it possible to be selectively allergic to something?

Last Answer : answer:My only allergic reaction ever was to these damn things. No rhyme or reason. Only thing I have ever been allergic too. Could be that all the chocolate milk providers get the chocolate part from the same provider.

Internet selectively unavailable after power out?

Description : Internet selectively unavailable after power out?

Last Answer : Do you restart your computer? Have you tried it with a different router? Have you tried clearing your browser cache? Does it actually come back (with new results and everything) or is it just showing you a page that was saved for offline? What browser are you using?

Do you collect garbage selectively?

Description : ?

Last Answer : We don't. I laughed at the fact that the neighbor makes it out nicely selectively, and then the trashes and bangs it all together. :) I know that intention is important, but where it makes sense. Otherwise.

The reaction of `P_(4)` with X leads selectively to `P_(4)O_(6)` The X is :

Description : The reaction of `P_(4)` with X leads selectively to `P_(4)O_(6)` The X is :

Last Answer : The reaction of `P_(4)` with X leads selectively to `P_(4)O_(6)` The X is : A. Dry `O_(2)` B. ... `O_(2)` D. `O_(2)` in the presence of aqueous NaOH

The reaction of `P_(4)` with X leads selectively to `P_(4)O_(6)` The X is :

Description : The reaction of `P_(4)` with X leads selectively to `P_(4)O_(6)` The X is :

Last Answer : The reaction of `P_(4)` with X leads selectively to `P_(4)O_(6)` The X is : A. Dry `O_(2)` B. ... `O_(2)` D. `O_(2)` in the presence of aqueous NaOH

The reagment (s) that can selectively precipitate `S^(2-)` from a mixture of `S^(2-)` and `SO_(4)^(2-)` in aqueous solution is (are)

Description : The reagment (s) that can selectively precipitate `S^(2-)` from a mixture of `S^(2-)` and `SO_(4)^(2-)` in aqueous solution is (are)

Last Answer : The reagment (s) that can selectively precipitate `S^(2-)` from a mixture of `S^(2-)` and `SO_(4)^(2-)` in ... 3))_(2)` D. `Na_(2)[Fe(CN)_(5)NO]`

Wounds are classified according to the likelihood of bacterial contamination. Which of the following statement(s) is/are true concerning wound classifications? a. A clean-contaminated wound would be that associated with an elective colon resection with adequate mechanical and antibiotic bowel preparation b. A contaminated wound would include a resection of obstructed bowel with gross spillage of intestinal contents c. In a clean wound, no viscus is entered d. Antibiotic prophylaxis should be administered for all clean-contaminated and contaminated wounds and selectively in patients involving a clean wound

Description : Wounds are classified according to the likelihood of bacterial contamination. Which of the following statement(s) is/are true concerning wound classifications? a. A clean-contaminated wound would ... all clean-contaminated and contaminated wounds and selectively in patients involving a clean wound

Last Answer : Answer: a, b, c, d Wounds are classified under three classes according to the likelihood of bacterial contamination: 1) clean (no viscus is entered; e.g., herniorrhaphy); 2) clean- ... tenet involves cases in which a prosthetic material may be used (artificial joint, heart valve, tissue patch)

The cardiac muscarinic receptors (a) Are of the M1 subtype (b) Are of the M2 subtype (c) Are selectively blocked by pirenzepine (d) Function through the PIP2 ? IP3/DAG pathway

Description : The cardiac muscarinic receptors (a) Are of the M1 subtype (b) Are of the M2 subtype (c) Are selectively blocked by pirenzepine (d) Function through the PIP2 ? IP3/DAG pathway

Last Answer : Ans: B

The action of aspirin that results in its greater efficacy as an antithrombotic (anti-platelet) drug is its ability to (a) Inhibit lipoxygenase as well as cyclooxygenase (b) Selectively inhibit cyclooxygenase I (c) Inhibit leukocyte migration (d) Promote uric acid excretion (e) Acetylate cyclooxygenase

Description : The action of aspirin that results in its greater efficacy as an antithrombotic (anti-platelet) drug is its ability to (a) Inhibit lipoxygenase as well as cyclooxygenase (b) Selectively inhibit ... I (c) Inhibit leukocyte migration (d) Promote uric acid excretion (e) Acetylate cyclooxygenase

Last Answer : Ans: E

The primary objective for designing drugs that selectively inhibit COX – 2 is to (a) Decrease the risk of nephrotoxicity (b) Improve anti-inflammatory effectiveness (c) Lower the risk of gastrointestinal toxicity (d) Reduce the cost of treatment of rheumatoid arthritis (e) Selectively decrease thromboxane A2 without effects on other eicosanoids

Description : The primary objective for designing drugs that selectively inhibit COX - 2 is to (a) Decrease the risk of nephrotoxicity (b) Improve anti-inflammatory effectiveness (c) Lower the ... of treatment of rheumatoid arthritis (e) Selectively decrease thromboxane A2 without effects on other eicosanoids

Last Answer : Ans: C

Which fish selectively feed on larva of mosquito? (a) Gambusia (b) Rohu (c) Clarias (d) Exocoetus

Description : Which fish selectively feed on larva of mosquito? (a) Gambusia (b) Rohu (c) Clarias (d) Exocoetus

Last Answer : (a) Gambusia

The following are true about the muscarinic receptors: a. they are found at the postganglionic parasympathetic synapses b. they can be selectively blocked by atropine c. M1 muscarinic receptors are found in the brain d. all above

Description : The following are true about the muscarinic receptors: a. they are found at the postganglionic parasympathetic synapses b. they can be selectively blocked by atropine c. M1 muscarinic receptors are found in the brain d. all above

Last Answer : all above

The following are true about acetylcholine receptors: a. receptors at all autonomic ganglia are nicotinic b. receptors at the skeletal neuromuscular junction are muscarinic c. acetylcholine receptors in the autonomic ganglia can be selectively blocked by atropine d. acetylcholine receptors in the neuromuscular junction can be selectively blocked by tubocurarine

Description : The following are true about acetylcholine receptors: a. receptors at all autonomic ganglia are nicotinic b. receptors at the skeletal neuromuscular junction are muscarinic c. ... atropine d. acetylcholine receptors in the neuromuscular junction can be selectively blocked by tubocurarine

Last Answer : acetylcholine receptors in the neuromuscular junction can be selectively blocked by tubocurarine

Selective media facilitate growth of only one kind of organism.Saboraud medium is used to selectively isolate A- coliform bacteria B- gram positive bacteria C- .yeasts D- acid fast organisms

Description : Selective media facilitate growth of only one kind of organism.Saboraud medium is used to selectively isolate A- coliform bacteria B- gram positive bacteria C- .yeasts D- acid fast organisms

Last Answer : .yeasts

Commonly used chemical fertilizer to con trol submerged weeds and water bloom non -selectively a). Anhydrous ammonia b). Ammonium sulphate c). Ammonium nitrate d). Urea

Description : Commonly used chemical fertilizer to con trol submerged weeds and water bloom non -selectively a). Anhydrous ammonia b). Ammonium sulphate c). Ammonium nitrate d). Urea

Last Answer : d). Urea

Which antiemetic selectively blocks levodopa induced vomiting without blocking its antiparkinsonian action: A. Metoclopramide B. Cisapride C. Domperidone D. Ondansetron

Description : Which antiemetic selectively blocks levodopa induced vomiting without blocking its antiparkinsonian action: A. Metoclopramide B. Cisapride C. Domperidone D. Ondansetron

Last Answer : C. Domperidone

Which fibrinolytic agent(s) selectively activate(s) fibrin bound plasminogen rather than circulating plasminogen: A. Urokinase B. Streptokinase C. Alteplase D. Both ‘A’ and ‘C

Description : Which fibrinolytic agent(s) selectively activate(s) fibrin bound plasminogen rather than circulating plasminogen: A. Urokinase B. Streptokinase C. Alteplase D. Both ‘A’ and ‘C

Last Answer : C. Alteplase

Low molecular weight heparins differ from unfractionated heparin in that: A. They selectively inhibit factor Xa B. They do not significantly prolong clotting time C. They are metabolized slowly and have longer duration of action D. All of the above are correct

Description : Low molecular weight heparins differ from unfractionated heparin in that: A. They selectively inhibit factor Xa B. They do not significantly prolong clotting time C. They are metabolized slowly and have longer duration of action D. All of the above are correct

Last Answer : D. All of the above are correct

Low concentrations of heparin selectively interfere with the following coagulation pathway(s): A. Intrinsic pathway B. Extrinsic pathway C. Common pathway D. Both ‘A’ and ‘C’

Description : Low concentrations of heparin selectively interfere with the following coagulation pathway(s): A. Intrinsic pathway B. Extrinsic pathway C. Common pathway D. Both ‘A’ and ‘C’

Last Answer : A. Intrinsic pathway

Organic nitrates have predominantly venodilator action because: A. They are selectively concentrated in veins B. Veins express larger quantities of enzymes that generate nitric oxide from nitrates C. Venous smooth muscle has greater capacity to relax D. All of the above are correct

Description : Organic nitrates have predominantly venodilator action because: A. They are selectively concentrated in veins B. Veins express larger quantities of enzymes that generate nitric oxide from nitrates C. Venous smooth muscle has greater capacity to relax D. All of the above are correct

Last Answer : B. Veins express larger quantities of enzymes that generate nitric oxide from nitrates

Choose the correct statement(s) about dofetilide: A. It is a pure class III antiarrhythmic B. It has no adrenergic/cholinergic receptor blocking property C. It selectively depresses the rapid component of delayed rectifier K+ current in myocardial fibres D. All of the above

Description : Choose the correct statement(s) about dofetilide: A. It is a pure class III antiarrhythmic B. It has no adrenergic/cholinergic receptor blocking property C. It selectively depresses the rapid component of delayed rectifier K+ current in myocardial fibres D. All of the above

Last Answer : D. All of the above

What is the selectively permeable membrane of the cell? -Do You Know?

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