NEET Test Series from KOTA - 10 Papers In MS WORD
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BIOXI08: CELL-THE UNIT OF LIFE
334854
Which one of the following structures between two adjacent cells in an effective transport pathway?
1 Plasmadesmata
2 Plastoquinones
3 Endoplasmic reticulum
4 Cytoskeleton
Explanation:
Plasmodesmata are fine cytoplasmic strands that connect the protoplasts of adjacent plant cells by passing through their cell walls. Plasmodesmata are cylindrical in shape (about 20-40 nm in diameter) and are lined by the plasmamembrane of the two adjacent cells. They permit the passage between cells of substances including ions, sugars, amino acids and macromolecules.
AIPMT - 2010
BIOXI08: CELL-THE UNIT OF LIFE
334855
Cell wall in plants consists of
1 Lignin, hemicellulose, pectin and lipid
2 Cellulose, hemicellulose, pectins and proteins.
3 Lignin, hemicelluloses, protein and lipid
4 Hemicellulose, cellulose, tubulin and lignin
Explanation:
Cell wall consists of cellulose, hemicellulose, pectins and proteins.
BIOXI08: CELL-THE UNIT OF LIFE
334856
Match the columns I and II and choose the correct option. Column I Column II A Non-living rigid structure P Secondary wall B Cell wall of a young plant cell Q Calcium pectate C Middle lamella R Cell wall D Matured cell wall S Primary wall
1 A-R, B-S, C-Q, D-P
2 A-P, B-Q, C-R, D-S
3 A-R, B-Q, C-S, D-P
4 A-P, B-R, C-Q, D-S
Explanation:
Non-living rigid structure – Cell Wall Cell wall of a young plant cell – Primary wall Middle lamellae – Calcium pectate Matured cell wall – Secondary wall
334854
Which one of the following structures between two adjacent cells in an effective transport pathway?
1 Plasmadesmata
2 Plastoquinones
3 Endoplasmic reticulum
4 Cytoskeleton
Explanation:
Plasmodesmata are fine cytoplasmic strands that connect the protoplasts of adjacent plant cells by passing through their cell walls. Plasmodesmata are cylindrical in shape (about 20-40 nm in diameter) and are lined by the plasmamembrane of the two adjacent cells. They permit the passage between cells of substances including ions, sugars, amino acids and macromolecules.
AIPMT - 2010
BIOXI08: CELL-THE UNIT OF LIFE
334855
Cell wall in plants consists of
1 Lignin, hemicellulose, pectin and lipid
2 Cellulose, hemicellulose, pectins and proteins.
3 Lignin, hemicelluloses, protein and lipid
4 Hemicellulose, cellulose, tubulin and lignin
Explanation:
Cell wall consists of cellulose, hemicellulose, pectins and proteins.
BIOXI08: CELL-THE UNIT OF LIFE
334856
Match the columns I and II and choose the correct option. Column I Column II A Non-living rigid structure P Secondary wall B Cell wall of a young plant cell Q Calcium pectate C Middle lamella R Cell wall D Matured cell wall S Primary wall
1 A-R, B-S, C-Q, D-P
2 A-P, B-Q, C-R, D-S
3 A-R, B-Q, C-S, D-P
4 A-P, B-R, C-Q, D-S
Explanation:
Non-living rigid structure – Cell Wall Cell wall of a young plant cell – Primary wall Middle lamellae – Calcium pectate Matured cell wall – Secondary wall
334854
Which one of the following structures between two adjacent cells in an effective transport pathway?
1 Plasmadesmata
2 Plastoquinones
3 Endoplasmic reticulum
4 Cytoskeleton
Explanation:
Plasmodesmata are fine cytoplasmic strands that connect the protoplasts of adjacent plant cells by passing through their cell walls. Plasmodesmata are cylindrical in shape (about 20-40 nm in diameter) and are lined by the plasmamembrane of the two adjacent cells. They permit the passage between cells of substances including ions, sugars, amino acids and macromolecules.
AIPMT - 2010
BIOXI08: CELL-THE UNIT OF LIFE
334855
Cell wall in plants consists of
1 Lignin, hemicellulose, pectin and lipid
2 Cellulose, hemicellulose, pectins and proteins.
3 Lignin, hemicelluloses, protein and lipid
4 Hemicellulose, cellulose, tubulin and lignin
Explanation:
Cell wall consists of cellulose, hemicellulose, pectins and proteins.
BIOXI08: CELL-THE UNIT OF LIFE
334856
Match the columns I and II and choose the correct option. Column I Column II A Non-living rigid structure P Secondary wall B Cell wall of a young plant cell Q Calcium pectate C Middle lamella R Cell wall D Matured cell wall S Primary wall
1 A-R, B-S, C-Q, D-P
2 A-P, B-Q, C-R, D-S
3 A-R, B-Q, C-S, D-P
4 A-P, B-R, C-Q, D-S
Explanation:
Non-living rigid structure – Cell Wall Cell wall of a young plant cell – Primary wall Middle lamellae – Calcium pectate Matured cell wall – Secondary wall