INTRODUCTION TO MICROSCOPY CELL BIOLOGY
DIFFERENTIATED CELL
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which type of regulatory protein helps speed up or slow down the cell cycle?
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internal regulators
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external reguators
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growth factors
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ATP synthase
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Explanation:
Detailed explanation-1: -The central machines that drive cell cycle progression are the cyclin-dependent kinases (CDKs). These are serine/threonine protein kinases that phosphorylate key substrates to promote DNA synthesis and mitotic progression.
Detailed explanation-2: -At the heart of the cell-cycle control system is a family of protein kinases known as cyclin-dependent kinases (Cdks). The activity of these kinases rises and falls as the cell progresses through the cycle.
Detailed explanation-3: -Cyclins are a family of proteins that regulate the timing of the cell cycle in eukaryotic cells.
There is 1 question to complete.