What are the three membranes of the brain? -Biology

What are the three membranes of the brain? -Biology
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Which disease is characterised by inflammation of the membranes covering the brain and spinal cord? -General Knowledge

Description : Which disease is characterised by inflammation of the membranes covering the brain and spinal cord? -General Knowledge

Last Answer : The answer is 'Meningitis'

Which disease is characterised by inflammation of the membranes covering the brain and spinal cord? -General Knowledge

Description : Which disease is characterised by inflammation of the membranes covering the brain and spinal cord? -General Knowledge

Last Answer : answer:

_____ which are free-living trophozoites appear to enter the body through the mucous membranes of the nose and then follow the olfactory tracts to the brain. a. NaegleriaLeishmania b. Giardia c. Babesia

Description : _____ which are free-living trophozoites appear to enter the body through the mucous membranes of the nose and then follow the olfactory tracts to the brain. a. NaegleriaLeishmania b. Giardia c. Babesia

Last Answer : a. NaegleriaLeishmania

An osmotic diuretic, such as Mannitol, is given to the patient with increased intracranial pressure (IICP) in order to a) dehydrate the brain and reduce cerebral edema. Osmotic diuretics draw water across intact membranes, thereby reducing the volume of brain and extracellular fluid.

Description : An osmotic diuretic, such as Mannitol, is given to the patient with increased intracranial pressure (IICP) in order to a) dehydrate the brain and reduce cerebral edema. Osmotic diuretics ... Medications such as barbiturates are given to the patient with IICP to reduce cellular metabolic demands.

Last Answer : a) dehydrate the brain and reduce cerebral edema. Osmotic diuretics draw water across intact membranes, thereby reducing the volume of brain and extracellular fluid.

Which disease is characterised by inflammation of the membranes covering the brain and spinal cord?

Description : Which disease is characterised by inflammation of the membranes covering the brain and spinal cord?

Last Answer : Meningitis

06. A hydrophilic medicinal agent has the following property: a) Low ability to penetrate through the cell membrane lipids b) Penetrate through membranes by means of endocytosis c) Easy permeation through the blood-brain barrier d) High reabsorption in renal tubules

Description : 06. A hydrophilic medicinal agent has the following property: a) Low ability to penetrate through the cell membrane lipids b) Penetrate through membranes by means of endocytosis c) Easy permeation through the blood-brain barrier d) High reabsorption in renal tubules

Last Answer : a) Low ability to penetrate through the cell membrane lipids

Under the electron microscope, you observe a cell with three different types of large organelles, each bounded by two membranes. The cell is most likely (a) A plant (b) An animal (c) A fungus (d) A bacterium

Description : Under the electron microscope, you observe a cell with three different types of large organelles, each bounded by two membranes. The cell is most likely (a) A plant (b) An animal (c) A fungus (d) A bacterium

Last Answer : Ans:(a)

The membranes of which domains are chemically the most similar? A- .Archaea and Bacteria B- Bacteria and Eukarya C- .Eukarya and Archaea D- membranes of all three domains are chemically identical

Description : The membranes of which domains are chemically the most similar? A- .Archaea and Bacteria B- Bacteria and Eukarya C- .Eukarya and Archaea D- membranes of all three domains are chemically identical

Last Answer : Bacteria and Eukarya

When comparing bacterial and archaeal cell membranes, only bacterial cell membranes a. Have three layers of phospholipids. b. Have a phospholipid bilayer. c. Are fluid. d. Have ether linkages.

Description : When comparing bacterial and archaeal cell membranes, only bacterial cell membranes a. Have three layers of phospholipids. b. Have a phospholipid bilayer. c. Are fluid. d. Have ether linkages.

Last Answer : b. Have a phospholipid bilayer.

What are the three major components of glycerophospholipids, the main component of lipid bilayers that comprise cellular membranes?

Description : What are the three major components of glycerophospholipids, the main component of lipid bilayers that comprise cellular membranes?

Last Answer : Glycerol, a phosphate group, fatty acid chains

Explain active transport of substances across cell membranes. -Biology

Description : Explain active transport of substances across cell membranes. -Biology

Last Answer : answer:

What are biological membranes? -Biology

Description : What are biological membranes? -Biology

Last Answer : answer:

what is the structure of cell membranes?

Description : what is the structure of cell membranes?

Last Answer : abey mene jawab manga tha or mujh se hi sawal ka jawab mang rahahai?

How many types of membranes can be seen in plants ?

Description : How many types of membranes can be seen in plants ?

Last Answer : 3 types of membranes can be seen in plants.

The respiratory membranes facilitates the exchange of respiratory gases through diffusion . Oxygen enters the deoxygenated blood through diffusion bec

Description : The respiratory membranes facilitates the exchange of respiratory gases through diffusion . Oxygen enters the deoxygenated blood through diffusion bec

Last Answer : The respiratory membranes facilitates the exchange of respiratory gases through diffusion . Oxygen enters the ... it 40mm Hg and 46 mm Hg respectively

Assertion:- Macromolecules are able to move get fused and form pores. Reason:- At few places both nuclear membranes get fused and form pores.

Description : Assertion:- Macromolecules are able to move get fused and form pores. Reason:- At few places both nuclear membranes get fused and form pores.

Last Answer : Assertion:- Macromolecules are able to move get fused and form pores. Reason:- At few places both ... . D. If both Assertion & Reason are false.

Assertion:- `H^(+)` pump of the membranes essentially work for lysosoml vesicles. Reason:- Hydrolysing enzymes of lysosome are tend to work for lysoso

Description : Assertion:- `H^(+)` pump of the membranes essentially work for lysosoml vesicles. Reason:- Hydrolysing enzymes of lysosome are tend to work for lysoso

Last Answer : Assertion:- `H^(+)` pump of the membranes essentially work for lysosoml vesicles. Reason:- Hydrolysing ... . D. If both Assertion & Reason are false.

Cellular organelles with membranes are

Description : Cellular organelles with membranes are

Last Answer : Cellular organelles with membranes are A. Lysosomes, Golgi apparatus and mitochonria B. Nuclei, ... D. Endoplasmis reticulum, ribosomes and nuclei

In the immune system which line of defense includes a combination of reflexes the skin ans mucous membranes?

Description : In the immune system which line of defense includes a combination of reflexes the skin ans mucous membranes?

Last Answer : Need answer

Why does The fungus damages bat wings causing small holes and scar tissue to appear in the membranes. What is a possible effect of this damage to bat wings?

Description : Why does The fungus damages bat wings causing small holes and scar tissue to appear in the membranes. What is a possible effect of this damage to bat wings?

Last Answer : idk maybe because they are stinky

What is most likely result of damage to the thlaykoid membranes in a?

Description : What is most likely result of damage to the thlaykoid membranes in a?

Last Answer : Need answer

What is meant by the following statement about cell membranes the cell membrane is said to be semipermeable?

Description : What is meant by the following statement about cell membranes the cell membrane is said to be semipermeable?

Last Answer : It is very selective about what it allows to pass through.

What best explain the passage of air across alveolar membranes?

Description : What best explain the passage of air across alveolar membranes?

Last Answer : diffusion through moist thin epithelial cells

What Human embryonic membranes?

Description : What Human embryonic membranes?

Last Answer : Feel Free to Answer

Why chloroplast have many membranes in them?

Description : Why chloroplast have many membranes in them?

Last Answer : Feel Free to Answer

What is the major component of plasma membranes?

Description : What is the major component of plasma membranes?

Last Answer : Most of the membrane is composed of phospholipid molecules.These allow the membrane tobe rather fluid (not stiff). Embedded in this membrane areproteins which give some structure to ... the membrane andprevents higher temperatures from increasing fluidity.Cholesterol is only found in animal cells.

What membranes are in kidneys?

Description : What membranes are in kidneys?

Last Answer : What is the answer ?

What will most likely happen is a toxin causes the hydrogen ion pump to stop moving h plus ions outside the mitochondrial membranes of the bird's cells?

Description : What will most likely happen is a toxin causes the hydrogen ion pump to stop moving h plus ions outside the mitochondrial membranes of the bird's cells?

Last Answer : Need answer

What is the major component of plasma membranes?

Description : What is the major component of plasma membranes?

Last Answer : Most of the membrane is composed of phospholipid molecules.These allow the membrane tobe rather fluid (not stiff). Embedded in this membrane areproteins which give some structure to ... the membrane andprevents higher temperatures from increasing fluidity.Cholesterol is only found in animal cells.

What do mitochondrial and thylakoid membranes have in commons?

Description : What do mitochondrial and thylakoid membranes have in commons?

Last Answer : Mitochondrial and thylakoid membranes are sites of electrontransport chains. They both use ATP synthase proteins in ATPproduction.

Which of the following types of molecules are the major structural components of cell membranes?

Description : Which of the following types of molecules are the major structural components of cell membranes?

Last Answer : a. Phospholipids and proteins. ///// b. Phospholipids and cellulose.//// c. Nucleic acids and proteins.//// d. Glycoproteins and cholesterol.

What is found in some viruses and are external lipid membranes borrowed from the host cell.?

Description : What is found in some viruses and are external lipid membranes borrowed from the host cell.?

Last Answer : Lipid membrane called the Envelope

What is the function of the mucous membranes and cilia in the nasal cavity?

Description : What is the function of the mucous membranes and cilia in the nasal cavity?

Last Answer : The respiratory system is lined with a mucous membrane that secretes mucus.

What is the function of mucous membranes?

Description : What is the function of mucous membranes?

Last Answer : The mucous membrane is epithelium. It lines the passageways and chambers that communicate with the exterior. The exterior is known as digestive, respiratory, reproductive, and urinary tracts.

Anion gap in plasma is because (A) Of differential distribution of ions across cell membranes (B) Cations outnumber anions in plasma (C) Anions outnumber cations in plasma (D) Of unmeasured anions in plasma

Description : Anion gap in plasma is because (A) Of differential distribution of ions across cell membranes (B) Cations outnumber anions in plasma (C) Anions outnumber cations in plasma (D) Of unmeasured anions in plasma

Last Answer : Answer : B

Glycophorin is present in cell membranes of (A) Erythrocytes (B) Platelets (C) Neutrophils (D) Liver

Description : Glycophorin is present in cell membranes of (A) Erythrocytes (B) Platelets (C) Neutrophils (D) Liver

Last Answer : Answer : A

Which of the following features is predicted by the Nicolson–Singer fluid mosaic model of biological membranes? (A) Membrane lipids do not diffuse laterally (B) Membrane lipid is primarily in a monolayer form (C) Membrane lipids freely flip-flop (D) Membrane proteins may diffuse laterally

Description : Which of the following features is predicted by the Nicolson–Singer fluid mosaic model of biological membranes? (A) Membrane lipids do not diffuse laterally (B) Membrane lipid is primarily in a monolayer form (C) Membrane lipids freely flip-flop (D) Membrane proteins may diffuse laterally

Last Answer : Answer : D

All the following statements describing lipids are true except (A) They usually associate by covalent interactions (B) They are structurally components of membranes (C) They are an intracellular energy source (D) They are poorly soluble in H2O

Description : All the following statements describing lipids are true except (A) They usually associate by covalent interactions (B) They are structurally components of membranes (C) They are an intracellular energy source (D) They are poorly soluble in H2O

Last Answer : Answer : A

Transition temperature of membranes may be affected by the following constituent of membranes: (A) Peripheral proteins (B) Integral proteins (C) Cholesterol (D) Oligosachharides

Description : Transition temperature of membranes may be affected by the following constituent of membranes: (A) Peripheral proteins (B) Integral proteins (C) Cholesterol (D) Oligosachharides

Last Answer : Answer : C

Fluidity of membranes is increased by the following constituent except (A) Polyunsaturated fatty acids (B) Saturated fatty acids (C) Integral proteins (D) Cholesterol

Description : Fluidity of membranes is increased by the following constituent except (A) Polyunsaturated fatty acids (B) Saturated fatty acids (C) Integral proteins (D) Cholesterol

Last Answer : Answer : A

Triglycerides are (A) Heavier than water (B) Major constituents of membranes (C) Non-polar (D) Hydrophilic

Description : Triglycerides are (A) Heavier than water (B) Major constituents of membranes (C) Non-polar (D) Hydrophilic

Last Answer : Answer : C

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

Which of the following statement(s) is/are true concerning water movement across cell membranes? a. Water moves only actively through cell membrane transport proteins b. For most cells of the body, the transmembrane hydrostatic pressure is 0 c. Water distribution is determined entirely by solute distribution d. Specialized cells such as the glomerulus of the kidney actively transport water to maintain hydrostatic pressure

Description : Which of the following statement(s) is/are true concerning water movement across cell membranes? a. Water moves only actively through cell membrane transport proteins b. For most cells of ... cells such as the glomerulus of the kidney actively transport water to maintain hydrostatic pressure

Last Answer : Answer: b, c The energetics of water transport across cell membranes is simplified by the fact that water moves only passively due to gradients of hydrostatic pressure or water ... water is distributed at equilibrium. Water distribution is determined entirely by solute to solute distribution

With respect to lipoprotein transport and metabolism in the body, the following statements are correct EXCEPT: 1) Arterial walls contain cells with LDL receptors. 2) Cholesterol is required for the formation of red blood cell membranes. 3) Chylomicrons are synthesized in the liver. 4) HDL is assembled in the extracellular space. 5) VLDL transformation to LDL occurs in adipose tissue.

Description : With respect to lipoprotein transport and metabolism in the body, the following statements are correct EXCEPT: 1) Arterial walls contain cells with LDL receptors. 2) Cholesterol is required for the ... is assembled in the extracellular space. 5) VLDL transformation to LDL occurs in adipose tissue.

Last Answer : Answers-3 Chylomicrons are formed in the gut from exogenous triacylglycerols and cholesterol. They are released into the lymph and thereby enter the blood.They are not formed in the liver.

With respect to lipoprotein transport and metabolism in the body, the following statements are correct EXCEPT: 1) Arterial walls contain cells with LDL receptors. 2) Cholesterol is required for the formation of red blood cell membranes. 3) Chylomicrons are synthesized in the liver. 4) HDL is assembled in the extracellular space. 5) VLDL transformation to LDL occurs in adipose tissue.

Description : With respect to lipoprotein transport and metabolism in the body, the following statements are correct EXCEPT: 1) Arterial walls contain cells with LDL receptors. 2) Cholesterol is required for the ... is assembled in the extracellular space. 5) VLDL transformation to LDL occurs in adipose tissue.

Last Answer : Answers-3 Chylomicrons are formed in the gut from exogenous triacylglycerols and cholesterol. They are released into the lymph and thereby enter the blood.They are not formed in the liver.

In addition to their ability to decrease inflammatory prostaglandin synthesis, some non-steroidal anti-inflammatory drugs (NSAIDs) may owe part of their effects to their ability to (a) Inhibit leukocyte migration (b) Inhibit leukotriene synthesis (c) Stabilize lysosmal membranes (d) All of the above (e) None of the above

Description : In addition to their ability to decrease inflammatory prostaglandin synthesis, some non-steroidal anti-inflammatory drugs (NSAIDs) may owe part of their effects to their ability to (a) Inhibit leukocyte migration (b ... (c) Stabilize lysosmal membranes (d) All of the above (e) None of the above

Last Answer : Ans: D

Are the extra embryonic membranes the same in all vertebrates ?

Description : Are the extra embryonic membranes the same in all vertebrates ?

Last Answer : The presence of each extra embryonic membrane varies according to the vertebrate class. In fishes and amphibians, only the yolk sac is present. In reptiles and aves besides the yolk sac, there ... and the allantois. In placental mammals besides all these membranes, the placenta is present too.

What are the extra embryonic membranes present in vertebrates ?

Description : What are the extra embryonic membranes present in vertebrates ?

Last Answer : The extra embryonic membranes that may be present in vertebrates are the yolk sac, the amnion, the chorion, the allantois and the placenta.

What are extra embryonic membranes ?

Description : What are extra embryonic membranes ?

Last Answer : Extra embryonic membranes are membranous structures that appear paralleling the embryo and play important roles in the embryonic development. They form from the embryo but do not become part of the individual organism after its birth.

Which are the molecules that make possible active transport through membranes ?

Description : Which are the molecules that make possible active transport through membranes ?

Last Answer : Active transport is made by specific membrane proteins. These proteins are called “pumps” because they “pump” the moving substance through the membrane using energy from ATP molecules.