Basic Science T...

Which of the following is the correct sequence of phases in cell cycle?

Consider the following statements:
$$1$$. The ribosomal sub-unit of prokaryote cell is $$30$$S$$+50$$S.
$$2$$. The ribosomal sub-unit of eukaryote cell is $$60$$S$$+40$$S.
$$3$$. $$Mg^{2+}$$ is needed to form polyribosomes from ribosomes.
$$4$$. Ribosome is responsible for protein synthesis.
Which of the statements are correct about ribosomes?

Which of the following pair of cell organelles is mainly concerned with fatty acid metabolism in both plants and animals?

Which of the following cell organelles is found in a cell which is very active in protein synthesis?

Which of the following are called 'suicidal bags' of the cell?

Consider the following statements.
$$1$$. Desmosomes attaches cytoskeleton of one cell to the cytoskeleton of other cell.
$$2$$. Gap junction allow the passage of small molecules and ions required for rapid communication but do not allow the passage of larger molecules like proteins.
Which of the statement(s) given is/are correct about cell junctions?

Consider the given cell organelles:
$$1$$. Mitochondria
$$2$$. Plastids
$$3$$. Ribosome
Which of the cell organelle(s) given is/are common in both plant and animal cell?

Match List I with List II and select the correct answer using the codes given the lists.

Consider the following statements.
$$1$$. Endoplasmic Reticulum(ER) is called as 'skeleton of cell'.
$$2$$. ER is divided into three types according to presence or absence of ribosome.
$$3$$. Smooth ER is rich in actively protein secreting cells.
Which of the statement(s) given is/are correct?

When our cells are filled with dead or damaged organelles like mitochondria, ER, etc the degradation of these organelles is mainly performed by _________.