List I | List II | ||
A. | Nucleolus | I. | Site of formation of glycolipid |
B. | Centriole | II. | Organization like the cartwheel |
C. | Leucoplasts | III. | Site for active ribosomal RNA |
D. | Golgi apparatus | IV. | For storing nutrients |
List I | List II | ||
A. | Axoneme | I. | Centriole |
B. | Cartwheel pattern | II. | Cilia and flagella |
C. | Crista | III. | Chromosome |
D. | Satellite | IV. | Mitochondria |
List-I | List-II | ||
A | Fleming | I. | Disc shaped sacs or cisternae near cell nucleus |
B. | Robert Brown | II. | Chromatin |
C. | George Palade | III. | Ribosomes |
D. | Camillo Golgi | IV. | Nucleus |
Which of the following is an incorrect statement?
1. | The perinuclear space forms a barrier between the materials present inside the nucleus and that of the cytoplasm. |
2. | Nuclear pores act as passages for proteins and RNA molecules in both directions between nucleus and cytoplasm. |
3. | Mature sieve tube elements possess a conspicuous nucleus and usual cytoplasmic organelles. |
4. | Microbodies are present both in plant and animal cells. |
The biosynthesis of ribosomal RNA occurs in:
1. Ribosomes
2. Golgi apparatus
3. Microbodies
4. Nucleolus
Non-membranous nucleoplasmic structures in the nucleus, are the sites for active synthesis of:
1. | protein | 2. | mRNA |
3. | rRNA | 4. | tRNA |
1. Larger nucleoli are present in dividing cells.
2. It is a membrane-bound structure.
3. It takes part in spindle formation.
4. It is a site for active ribosomal RNA synthesis.
The nuclear envelope is derivative of:
Ribosomal RNA is actively synthesized in:
1. Lysosomes
2. Nucleolus
3. Nucleoplasm
4. Ribosomes