168984
The recent model for plasma membrane proposed by Singer and Nicolson is :
1 molecular-lipid model
2 lamellar model
3 unit membrane mode
4 fluid mosaic model
Explanation:
D The recent model for plasma membrane proposed by singer and Nicolson fluid mosaic model. According to this model they describes membranes as being bilayers of phospholipids in which the hydrophobic groups are turned inwards to face eachother and protein molecules are embedded in it.
HP CET - 2011 /BCECE - 2006 VMMC - 2005 / AMU - 2004
Cell : Structure and Functions
168986
Fluid mosaic model exhibits amphipathy because of
1 glycoproteins
2 phospholipids
3 lipids
4 glycolipids
Explanation:
B Fluid mosaic exhibits amphipathy due to phospholipids as they have both hydrophobic and hydrophilic groups. Phospholipid consists of two parts i.e. head and the two tails. The head is composed of phosphate molecule that is attracted to water (hydrophilic in nature) and the two tails are made up of fatty acids that are repel water (hydrophobic in nature).
AMU-2011
Cell : Structure and Functions
168987
Identify the correct option Statement - I : Excessive dosage of cocaine causes hallucinations. Statement - II : Intake of cocaine does not causes euphoria
1 Statement I is correct and II is wrong
2 Statement I is worng and II is correct
3 Statements I and II are wrong.
4 Statement I and II are correct
Explanation:
A Hallucination is a perception of having seen, heard, touched tested or smelled something that was not actually there. Cocaine is also known as coke. It is a strong stimulant mostly used as a receational drug.
AP EAPCET-22.05.2023
Cell : Structure and Functions
168996
What are the common characters of both prokaryotic and eukaryotic cells?
1 B, C, D
2 A, B
3 C, D, E
4 \(\mathrm{B}, \mathrm{E}\)
5 Meiotic cell division
Explanation:
B Prokaryotic cells are primitive cells mainly found in unicellular organism. Prokaryotic cells lack membrane bounded cell organelles and true nucleus is also absent. Cellulosic cell is absent in prokaryotes they possess a cell wall made up of peptidoglycan. Sexual reproduction is absent in prokaryotes so there is no meiotic cell division take place. Prokaryotes have plasma membrane and cytoplasm with scattered genetic material called nucleoid but eukaryotic cells have a true nucleus and all membrane bounded organelles, The cell organelles and nucleus is embedded in the cytoplasm the cell is covered with the plasma membrane which is covered by cell wall except animal cells.
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Cell : Structure and Functions
168984
The recent model for plasma membrane proposed by Singer and Nicolson is :
1 molecular-lipid model
2 lamellar model
3 unit membrane mode
4 fluid mosaic model
Explanation:
D The recent model for plasma membrane proposed by singer and Nicolson fluid mosaic model. According to this model they describes membranes as being bilayers of phospholipids in which the hydrophobic groups are turned inwards to face eachother and protein molecules are embedded in it.
HP CET - 2011 /BCECE - 2006 VMMC - 2005 / AMU - 2004
Cell : Structure and Functions
168986
Fluid mosaic model exhibits amphipathy because of
1 glycoproteins
2 phospholipids
3 lipids
4 glycolipids
Explanation:
B Fluid mosaic exhibits amphipathy due to phospholipids as they have both hydrophobic and hydrophilic groups. Phospholipid consists of two parts i.e. head and the two tails. The head is composed of phosphate molecule that is attracted to water (hydrophilic in nature) and the two tails are made up of fatty acids that are repel water (hydrophobic in nature).
AMU-2011
Cell : Structure and Functions
168987
Identify the correct option Statement - I : Excessive dosage of cocaine causes hallucinations. Statement - II : Intake of cocaine does not causes euphoria
1 Statement I is correct and II is wrong
2 Statement I is worng and II is correct
3 Statements I and II are wrong.
4 Statement I and II are correct
Explanation:
A Hallucination is a perception of having seen, heard, touched tested or smelled something that was not actually there. Cocaine is also known as coke. It is a strong stimulant mostly used as a receational drug.
AP EAPCET-22.05.2023
Cell : Structure and Functions
168996
What are the common characters of both prokaryotic and eukaryotic cells?
1 B, C, D
2 A, B
3 C, D, E
4 \(\mathrm{B}, \mathrm{E}\)
5 Meiotic cell division
Explanation:
B Prokaryotic cells are primitive cells mainly found in unicellular organism. Prokaryotic cells lack membrane bounded cell organelles and true nucleus is also absent. Cellulosic cell is absent in prokaryotes they possess a cell wall made up of peptidoglycan. Sexual reproduction is absent in prokaryotes so there is no meiotic cell division take place. Prokaryotes have plasma membrane and cytoplasm with scattered genetic material called nucleoid but eukaryotic cells have a true nucleus and all membrane bounded organelles, The cell organelles and nucleus is embedded in the cytoplasm the cell is covered with the plasma membrane which is covered by cell wall except animal cells.
168984
The recent model for plasma membrane proposed by Singer and Nicolson is :
1 molecular-lipid model
2 lamellar model
3 unit membrane mode
4 fluid mosaic model
Explanation:
D The recent model for plasma membrane proposed by singer and Nicolson fluid mosaic model. According to this model they describes membranes as being bilayers of phospholipids in which the hydrophobic groups are turned inwards to face eachother and protein molecules are embedded in it.
HP CET - 2011 /BCECE - 2006 VMMC - 2005 / AMU - 2004
Cell : Structure and Functions
168986
Fluid mosaic model exhibits amphipathy because of
1 glycoproteins
2 phospholipids
3 lipids
4 glycolipids
Explanation:
B Fluid mosaic exhibits amphipathy due to phospholipids as they have both hydrophobic and hydrophilic groups. Phospholipid consists of two parts i.e. head and the two tails. The head is composed of phosphate molecule that is attracted to water (hydrophilic in nature) and the two tails are made up of fatty acids that are repel water (hydrophobic in nature).
AMU-2011
Cell : Structure and Functions
168987
Identify the correct option Statement - I : Excessive dosage of cocaine causes hallucinations. Statement - II : Intake of cocaine does not causes euphoria
1 Statement I is correct and II is wrong
2 Statement I is worng and II is correct
3 Statements I and II are wrong.
4 Statement I and II are correct
Explanation:
A Hallucination is a perception of having seen, heard, touched tested or smelled something that was not actually there. Cocaine is also known as coke. It is a strong stimulant mostly used as a receational drug.
AP EAPCET-22.05.2023
Cell : Structure and Functions
168996
What are the common characters of both prokaryotic and eukaryotic cells?
1 B, C, D
2 A, B
3 C, D, E
4 \(\mathrm{B}, \mathrm{E}\)
5 Meiotic cell division
Explanation:
B Prokaryotic cells are primitive cells mainly found in unicellular organism. Prokaryotic cells lack membrane bounded cell organelles and true nucleus is also absent. Cellulosic cell is absent in prokaryotes they possess a cell wall made up of peptidoglycan. Sexual reproduction is absent in prokaryotes so there is no meiotic cell division take place. Prokaryotes have plasma membrane and cytoplasm with scattered genetic material called nucleoid but eukaryotic cells have a true nucleus and all membrane bounded organelles, The cell organelles and nucleus is embedded in the cytoplasm the cell is covered with the plasma membrane which is covered by cell wall except animal cells.
168984
The recent model for plasma membrane proposed by Singer and Nicolson is :
1 molecular-lipid model
2 lamellar model
3 unit membrane mode
4 fluid mosaic model
Explanation:
D The recent model for plasma membrane proposed by singer and Nicolson fluid mosaic model. According to this model they describes membranes as being bilayers of phospholipids in which the hydrophobic groups are turned inwards to face eachother and protein molecules are embedded in it.
HP CET - 2011 /BCECE - 2006 VMMC - 2005 / AMU - 2004
Cell : Structure and Functions
168986
Fluid mosaic model exhibits amphipathy because of
1 glycoproteins
2 phospholipids
3 lipids
4 glycolipids
Explanation:
B Fluid mosaic exhibits amphipathy due to phospholipids as they have both hydrophobic and hydrophilic groups. Phospholipid consists of two parts i.e. head and the two tails. The head is composed of phosphate molecule that is attracted to water (hydrophilic in nature) and the two tails are made up of fatty acids that are repel water (hydrophobic in nature).
AMU-2011
Cell : Structure and Functions
168987
Identify the correct option Statement - I : Excessive dosage of cocaine causes hallucinations. Statement - II : Intake of cocaine does not causes euphoria
1 Statement I is correct and II is wrong
2 Statement I is worng and II is correct
3 Statements I and II are wrong.
4 Statement I and II are correct
Explanation:
A Hallucination is a perception of having seen, heard, touched tested or smelled something that was not actually there. Cocaine is also known as coke. It is a strong stimulant mostly used as a receational drug.
AP EAPCET-22.05.2023
Cell : Structure and Functions
168996
What are the common characters of both prokaryotic and eukaryotic cells?
1 B, C, D
2 A, B
3 C, D, E
4 \(\mathrm{B}, \mathrm{E}\)
5 Meiotic cell division
Explanation:
B Prokaryotic cells are primitive cells mainly found in unicellular organism. Prokaryotic cells lack membrane bounded cell organelles and true nucleus is also absent. Cellulosic cell is absent in prokaryotes they possess a cell wall made up of peptidoglycan. Sexual reproduction is absent in prokaryotes so there is no meiotic cell division take place. Prokaryotes have plasma membrane and cytoplasm with scattered genetic material called nucleoid but eukaryotic cells have a true nucleus and all membrane bounded organelles, The cell organelles and nucleus is embedded in the cytoplasm the cell is covered with the plasma membrane which is covered by cell wall except animal cells.