Tag: eukaryotic cell

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Multiple choice bio-chemistry unit of living - cell eukaryotic cell kinds of cell introduction to eukaryotic cell

The structure of the nuclear membrane facilitates

  1. Organization of spindle

  2. Nucleo-cytoplasmic exchange of materials

  3. Anaphasic separation of daughter chromosomes

  4. Synapsis of chromosomes
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In eukaryotic cells, the nucleus is bound by a double membrane or nuclear envelope. It possesses openings at certain intervals called as 'nuclear pore'. Nuclear pores are large protein complexes regulates the exchange of material between nucleus and cytoplasm, i.e., nucleo-cytoplasmic exchange of materials. 

Multiple choice bio-chemistry unit of living - cell eukaryotic cell kinds of cell introduction to eukaryotic cell


9 + 2 fibrillar arrangement is present in:

  1. Bacterial flagella

  2. Bacterial fimbriae

  3. Eukaryotic flagella

  4. T4 bacteriophage
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The 9+2 microtubule arrangement (9 outer doublets + 2 central singlet microtubules) is characteristic of eukaryotic flagella and cilia. Bacterial flagella use a different structure (filament + hook + basal body), and fimbriae are protein filaments without this arrangement.