Q. No.All are membrane bounded cell organelles in a typical plant cell, except
(1) Mitochondria
(2) Lysosome
(3) Ribosome
(4) Chloroplast
(1) Mitochondria
(2) Lysosome
(3) Ribosome
(4) Chloroplast
Plasmodesmata connections help in
| 1. | Cytoplasmic streaming |
| 2. | Mitotic division |
| 3. | Movement of substances between the cells |
| 4. | Osmosis only |
A nuclear pore allows
1. Unidirectional movement of DNA
2. RNA movement only
3. RNA and protein movement
4. Protein movement only
Correct statement in relation to vacuoles is
| 1. | It is a triple membrane bound space found in cytoplasm containing sap |
| 2. | It can occupy 90% of cell volume in plants |
| 3. | Its membrane allows transport of materials along the concentration gradient only |
| 4. | Concentration of ions is significantly lesser in vacuole than cytoplasm |
Find out the incorrect statement
| 1. | Middle lamella is mainly made up of Ca-pectate |
| 2. | Cell wall is formed from inner side therefore secondary wall formed before primary wall |
| 3. | Middle lamella glues the different neighbouring cells together |
| 4. | Pits are present in secondary wall |
Vesicles from ER fuse with
| 1. | Maturing face of golgi body |
| 2. | Forming face of golgi body |
| 3. | Primary lysosome for intercellular digestion |
| 4. | Plasma membrane to remove them out from cell |
Fluidity of the cell membrane is measured
| 1. | On the amount of cholesterol and protein in membrane |
| 2. | On the amount of carbohydrate in membrane |
| 3. | On the lateral movement of proteins within the overall bilayer |
| 4. | On the flip-flop movement of protein |
Which of the following cell organelle is a major site for the synthesis of steroidal hormones?
1. SER
2. Golgi bodies
3. Ribosomes
4. Peroxisome
The content of nucleolus is continuous with nucleoplasm
| 1. | Through microtubules |
| 2. | Through nuclear pores |
| 3. | Due to lack of membrane |
| 4. | Due to presence of channels in membrane |
The central part of proximal region of centriole is called hub which is made of
1. Protein
2. Lipoprotein
3. Phospholipid
4. Oligosaccharide
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