In cell division, the - ends of microtubules are anchored by +end is stabilized

Question

In cell division, the - ends of microtubules are anchored by +end is stabilized by A) GTP cap; spindle apparatus B) centrosome,; GTP cap C) ATP cap; ADP cap D) centrioles, gamma tubulin while the 10 The entire genome is replicated in this phase A) G1 ?) s C) G2 D) M 11 Which of these is NOT a commonly occurring lipid in cell membranes? A) sphingosine C) Phosphatidylserine (PS) D) Phosphatidylcholine (PC) B) cholesterol spectrin Which of the following is true? 12 A) While the same few phospholipids are found in all membranes of all cells, the proportions of each phospholipid and other components can vary a lot between different kinds of membranes, even in the same cel. B) One of the universal features of life is that nearly all cellular membranes in all living cells have the same few phospholipids, with the same head and tail groups in roughly the same proportions. C) Some living cells do not have a plasma membrane; they have a cell wall instead. D) The membranes of different kinds of living cells (e.g., plants, animals, bacteria, archaea) are made of very different kinds of structural components, arguing that these structures evolved at different times.

Explanation / Answer

9)

B) centrosomes anchor the microtubules while the GTP cap ensures continued polymerization.

10) replication happens in S phase

12)A) is correct, the proportion of the phospho lipids vary even within the same cell in different membranes

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