41.Ans. Ans,Sarcoplasmic reticulum Sarcoplasmic reticulum is a type of Endoplasmic Reticulum which present in striated muscle, does not involves in flagellar movement. the other options are microtubules have important role in flagella movement. these are the main components of axoneme, which is a unit of falgellar structure and Dyneins are motor proteins. 42.Ans. Other than the nucleus most organelles are small and thus in a typical cell only about 10% of the cells volume is occupied by membrane enclosed organelles and other 90% of the cell volume is cytosol. the other options are wrong. membrane bound organelles have outer layer plasma membrane, so the endoplasmic reticulum not far exceeds the area of plasma membrane. not only the nucleus surrounded by double layer, other organells for example Mitochondria also surrounded by double layers. and not only the nucleus, mitochondria also have the DNA. and chloroplast also have the DNA. 43.Ans. True once loaded vesicles are carry the cargo to different location with in the body, and reaches the site of secretion. once reached some of the vesicles containing material for constitutive - Produced in constant amount, releases and immediately fused with Plasma membrane. where as vesicles called secretory vesicles- these are the vesicles in which molecules destined for secretion are stored, these vesicles are in regulated pathway means once reached to the site of secretion these vesicles wait at he membrane until it receives a signal to secrete, once cell receives the signal these are going secrete the content and material fuse with the plasma membrane 44.Ans.False Nuclear localization signal needed to the peptide until it crosses the membrane 45Ans.True Chaperones are needed for the import of the proteins. these are prevent the premature folding of the proteins. while import into the mitochondria, the Chaperones present in the inner surface of the membrane of mitochondria able to bind the protruding ends of polypeptide and prevents them to diffuse back into the cytosol through the pore and carry them further and into the matrix. while moving the peptides further into the matrix at every stage the se peptides are bounded with the Chaperones which prevent backward movement of the peptides. this kind of diffusion called as biased diffusion and Chaperones acted as Brownian ratchet. 46.Ans.E) All of These happen. the above all happens when haploid cell mates Solution 41.Ans. Ans,Sarcoplasmic reticulum Sarcoplasmic reticulum is a type of Endoplasmic Reticulum which present in striated muscle, does not involves in flagellar movement. the other options are microtubules have important role in flagella movement. these are the main components of axoneme, which is a unit of falgellar structure and Dyneins are motor proteins. 42.Ans. Other than the nucleus most organelles are small and thus in a typical cell only about 10% of the cells volume is occupied by membrane enclosed organelles and other 90% of the cell vol.

1. 41.Ans. Ans,Sarcoplasmic reticulum
Sarcoplasmic reticulum is a type of Endoplasmic Reticulum which present in striated muscle,
does not involves in flagellar movement. the other options are microtubules have important role
in flagella movement. these are the main components of axoneme, which is a unit of falgellar
structure and Dyneins are motor proteins.
42.Ans. Other than the nucleus most organelles are small and thus in a typical cell only about
10% of the cells volume is occupied by membrane enclosed organelles and other 90% of the cell
volume is cytosol.
the other options are wrong. membrane bound organelles have outer layer plasma membrane, so
the endoplasmic reticulum not far exceeds the area of plasma membrane. not only the nucleus
surrounded by double layer, other organells for example Mitochondria also surrounded by
double layers. and not only the nucleus, mitochondria also have the DNA. and chloroplast also
have the DNA.
43.Ans. True
once loaded vesicles are carry the cargo to different location with in the body, and reaches the
site of secretion. once reached some of the vesicles containing material for constitutive -
Produced in constant amount, releases and immediately fused with Plasma membrane. where as
vesicles called secretory vesicles- these are the vesicles in which molecules destined for
secretion are stored, these vesicles are in regulated pathway means once reached to the site of
secretion these vesicles wait at he membrane until it receives a signal to secrete, once cell
receives the signal these are going secrete the content and material fuse with the plasma
membrane
44.Ans.False
Nuclear localization signal needed to the peptide until it crosses the membrane
45Ans.True
Chaperones are needed for the import of the proteins. these are prevent the premature folding of
the proteins. while import into the mitochondria, the Chaperones present in the inner surface of
the membrane of mitochondria able to bind the protruding ends of polypeptide and prevents them
to diffuse back into the cytosol through the pore and carry them further and into the matrix. while
moving the peptides further into the matrix at every stage the se peptides are bounded with the
Chaperones which prevent backward movement of the peptides. this kind of diffusion called as
biased diffusion and Chaperones acted as Brownian ratchet.
46.Ans.E) All of These happen.
the above all happens when haploid cell mates

2. Solution
41.Ans. Ans,Sarcoplasmic reticulum
Sarcoplasmic reticulum is a type of Endoplasmic Reticulum which present in striated muscle,
does not involves in flagellar movement. the other options are microtubules have important role
in flagella movement. these are the main components of axoneme, which is a unit of falgellar
structure and Dyneins are motor proteins.
42.Ans. Other than the nucleus most organelles are small and thus in a typical cell only about
10% of the cells volume is occupied by membrane enclosed organelles and other 90% of the cell
volume is cytosol.
the other options are wrong. membrane bound organelles have outer layer plasma membrane, so
the endoplasmic reticulum not far exceeds the area of plasma membrane. not only the nucleus
surrounded by double layer, other organells for example Mitochondria also surrounded by
double layers. and not only the nucleus, mitochondria also have the DNA. and chloroplast also
have the DNA.
43.Ans. True
once loaded vesicles are carry the cargo to different location with in the body, and reaches the
site of secretion. once reached some of the vesicles containing material for constitutive -
Produced in constant amount, releases and immediately fused with Plasma membrane. where as
vesicles called secretory vesicles- these are the vesicles in which molecules destined for
secretion are stored, these vesicles are in regulated pathway means once reached to the site of
secretion these vesicles wait at he membrane until it receives a signal to secrete, once cell
receives the signal these are going secrete the content and material fuse with the plasma
membrane
44.Ans.False
Nuclear localization signal needed to the peptide until it crosses the membrane
45Ans.True
Chaperones are needed for the import of the proteins. these are prevent the premature folding of
the proteins. while import into the mitochondria, the Chaperones present in the inner surface of
the membrane of mitochondria able to bind the protruding ends of polypeptide and prevents them
to diffuse back into the cytosol through the pore and carry them further and into the matrix. while
moving the peptides further into the matrix at every stage the se peptides are bounded with the
Chaperones which prevent backward movement of the peptides. this kind of diffusion called as
biased diffusion and Chaperones acted as Brownian ratchet.
46.Ans.E) All of These happen.
the above all happens when haploid cell mates