Exp:C Fluid mosaic model of plasma membrane given by singer and Nicolson. According these model there is a bilayer of lipid molecule with globular protein molecule. - Knoll and Ruska - German engineer max knoll and physicist Earnest Ruska discovered electron microscope 1932. - Bateson and Punnet _ Published the first account of genetic linkage in sweet peas and punnet developed the punnett square to depict the number and variety of genetic combination.
Punjab MET-2004
Cell : Structure and Functions
169229
The fluidity of membranes in a plant in cold weather may be maintained by :
1 increasing the number of phospholipids with unsaturated hydrocarbon tails
2 increasing the proportion of integral proteins
3 increasing concentration of cholesterol in membrane
4 increasing the number of phospholipids with saturated hydrocarbon tail
Explanation:
Exp:A The fluidity of membrane in a plant in cold weather may be maintained by increasing the number of phospholipids with the presence of cholesterol tail. Cholesterol can have both positive and negative effects on the fluidity of the cell membrane. At cold temperatures, cholesterol can help to keep the cell membrane more fluid. At higher temperature, cholesterol can help to stabilize the cell membrane and prevent it from becoming too fluid. The fluidity of a membrane increases as the percentage of unsaturated fatty acids in the phospholipid goes up. Integral protein play critical role in movement of molecules across them.
BVP-2013
Cell : Structure and Functions
169231
Two membrane envelops is found in
1 mitochondria, Golgi apparatus and chloroplast
2 mitochondria, nucleus and chloroplast
3 nucleus, Golgi apparatus and endoplasmic reticulum
4 nucleus, ribosome and chloroplast
Explanation:
Exp:B Two membrane envelope is found in mitochondria and chloroplast. - Single membrane cell organelles - ER, Golgi body, Lysosome - Membrane less cell organelles-Ribosome and centriole.
WB JEE-2015
Cell : Structure and Functions
169100
The cell organelle covered by single unit membrane is:
1 Lysosome
2 Mitochondria
3 Chloroplast
4 Ribosome
Explanation:
Exp:A The cell organelle covered by single unit membrane is lysosomes and vacuole. \(\rightarrow\) Double unit membrane bound organelles Mitochondria + chloroplast. \(\rightarrow\) Non- membrane bound organelle \(\rightarrow\) Ribosomes.
TS EAMCET-30.07.2022 Shift-II NEET-2016 Phase-I MGIMS Wardha-2005 / VMMC-2005 UP CPMT-2005 / AMU-2004 AP EAMCET-2001 / Punjab MET-1999 Rajasthan PMT-1998
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Cell : Structure and Functions
169228
Fluid mosaic model was given by :
1 Knoll and Ruska
2 Singer and Ruska
3 Singer and Nicolson
4 Bateson and Punnet
Explanation:
Exp:C Fluid mosaic model of plasma membrane given by singer and Nicolson. According these model there is a bilayer of lipid molecule with globular protein molecule. - Knoll and Ruska - German engineer max knoll and physicist Earnest Ruska discovered electron microscope 1932. - Bateson and Punnet _ Published the first account of genetic linkage in sweet peas and punnet developed the punnett square to depict the number and variety of genetic combination.
Punjab MET-2004
Cell : Structure and Functions
169229
The fluidity of membranes in a plant in cold weather may be maintained by :
1 increasing the number of phospholipids with unsaturated hydrocarbon tails
2 increasing the proportion of integral proteins
3 increasing concentration of cholesterol in membrane
4 increasing the number of phospholipids with saturated hydrocarbon tail
Explanation:
Exp:A The fluidity of membrane in a plant in cold weather may be maintained by increasing the number of phospholipids with the presence of cholesterol tail. Cholesterol can have both positive and negative effects on the fluidity of the cell membrane. At cold temperatures, cholesterol can help to keep the cell membrane more fluid. At higher temperature, cholesterol can help to stabilize the cell membrane and prevent it from becoming too fluid. The fluidity of a membrane increases as the percentage of unsaturated fatty acids in the phospholipid goes up. Integral protein play critical role in movement of molecules across them.
BVP-2013
Cell : Structure and Functions
169231
Two membrane envelops is found in
1 mitochondria, Golgi apparatus and chloroplast
2 mitochondria, nucleus and chloroplast
3 nucleus, Golgi apparatus and endoplasmic reticulum
4 nucleus, ribosome and chloroplast
Explanation:
Exp:B Two membrane envelope is found in mitochondria and chloroplast. - Single membrane cell organelles - ER, Golgi body, Lysosome - Membrane less cell organelles-Ribosome and centriole.
WB JEE-2015
Cell : Structure and Functions
169100
The cell organelle covered by single unit membrane is:
1 Lysosome
2 Mitochondria
3 Chloroplast
4 Ribosome
Explanation:
Exp:A The cell organelle covered by single unit membrane is lysosomes and vacuole. \(\rightarrow\) Double unit membrane bound organelles Mitochondria + chloroplast. \(\rightarrow\) Non- membrane bound organelle \(\rightarrow\) Ribosomes.
TS EAMCET-30.07.2022 Shift-II NEET-2016 Phase-I MGIMS Wardha-2005 / VMMC-2005 UP CPMT-2005 / AMU-2004 AP EAMCET-2001 / Punjab MET-1999 Rajasthan PMT-1998
Exp:C Fluid mosaic model of plasma membrane given by singer and Nicolson. According these model there is a bilayer of lipid molecule with globular protein molecule. - Knoll and Ruska - German engineer max knoll and physicist Earnest Ruska discovered electron microscope 1932. - Bateson and Punnet _ Published the first account of genetic linkage in sweet peas and punnet developed the punnett square to depict the number and variety of genetic combination.
Punjab MET-2004
Cell : Structure and Functions
169229
The fluidity of membranes in a plant in cold weather may be maintained by :
1 increasing the number of phospholipids with unsaturated hydrocarbon tails
2 increasing the proportion of integral proteins
3 increasing concentration of cholesterol in membrane
4 increasing the number of phospholipids with saturated hydrocarbon tail
Explanation:
Exp:A The fluidity of membrane in a plant in cold weather may be maintained by increasing the number of phospholipids with the presence of cholesterol tail. Cholesterol can have both positive and negative effects on the fluidity of the cell membrane. At cold temperatures, cholesterol can help to keep the cell membrane more fluid. At higher temperature, cholesterol can help to stabilize the cell membrane and prevent it from becoming too fluid. The fluidity of a membrane increases as the percentage of unsaturated fatty acids in the phospholipid goes up. Integral protein play critical role in movement of molecules across them.
BVP-2013
Cell : Structure and Functions
169231
Two membrane envelops is found in
1 mitochondria, Golgi apparatus and chloroplast
2 mitochondria, nucleus and chloroplast
3 nucleus, Golgi apparatus and endoplasmic reticulum
4 nucleus, ribosome and chloroplast
Explanation:
Exp:B Two membrane envelope is found in mitochondria and chloroplast. - Single membrane cell organelles - ER, Golgi body, Lysosome - Membrane less cell organelles-Ribosome and centriole.
WB JEE-2015
Cell : Structure and Functions
169100
The cell organelle covered by single unit membrane is:
1 Lysosome
2 Mitochondria
3 Chloroplast
4 Ribosome
Explanation:
Exp:A The cell organelle covered by single unit membrane is lysosomes and vacuole. \(\rightarrow\) Double unit membrane bound organelles Mitochondria + chloroplast. \(\rightarrow\) Non- membrane bound organelle \(\rightarrow\) Ribosomes.
TS EAMCET-30.07.2022 Shift-II NEET-2016 Phase-I MGIMS Wardha-2005 / VMMC-2005 UP CPMT-2005 / AMU-2004 AP EAMCET-2001 / Punjab MET-1999 Rajasthan PMT-1998
Exp:C Fluid mosaic model of plasma membrane given by singer and Nicolson. According these model there is a bilayer of lipid molecule with globular protein molecule. - Knoll and Ruska - German engineer max knoll and physicist Earnest Ruska discovered electron microscope 1932. - Bateson and Punnet _ Published the first account of genetic linkage in sweet peas and punnet developed the punnett square to depict the number and variety of genetic combination.
Punjab MET-2004
Cell : Structure and Functions
169229
The fluidity of membranes in a plant in cold weather may be maintained by :
1 increasing the number of phospholipids with unsaturated hydrocarbon tails
2 increasing the proportion of integral proteins
3 increasing concentration of cholesterol in membrane
4 increasing the number of phospholipids with saturated hydrocarbon tail
Explanation:
Exp:A The fluidity of membrane in a plant in cold weather may be maintained by increasing the number of phospholipids with the presence of cholesterol tail. Cholesterol can have both positive and negative effects on the fluidity of the cell membrane. At cold temperatures, cholesterol can help to keep the cell membrane more fluid. At higher temperature, cholesterol can help to stabilize the cell membrane and prevent it from becoming too fluid. The fluidity of a membrane increases as the percentage of unsaturated fatty acids in the phospholipid goes up. Integral protein play critical role in movement of molecules across them.
BVP-2013
Cell : Structure and Functions
169231
Two membrane envelops is found in
1 mitochondria, Golgi apparatus and chloroplast
2 mitochondria, nucleus and chloroplast
3 nucleus, Golgi apparatus and endoplasmic reticulum
4 nucleus, ribosome and chloroplast
Explanation:
Exp:B Two membrane envelope is found in mitochondria and chloroplast. - Single membrane cell organelles - ER, Golgi body, Lysosome - Membrane less cell organelles-Ribosome and centriole.
WB JEE-2015
Cell : Structure and Functions
169100
The cell organelle covered by single unit membrane is:
1 Lysosome
2 Mitochondria
3 Chloroplast
4 Ribosome
Explanation:
Exp:A The cell organelle covered by single unit membrane is lysosomes and vacuole. \(\rightarrow\) Double unit membrane bound organelles Mitochondria + chloroplast. \(\rightarrow\) Non- membrane bound organelle \(\rightarrow\) Ribosomes.
TS EAMCET-30.07.2022 Shift-II NEET-2016 Phase-I MGIMS Wardha-2005 / VMMC-2005 UP CPMT-2005 / AMU-2004 AP EAMCET-2001 / Punjab MET-1999 Rajasthan PMT-1998