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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A physical signal that controls cell growth and division is ____
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external growth factor hormone
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internal enzymes
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cell contact with other cells
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checkpoints
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Explanation:
Detailed explanation-1: -The nucleus is like the remote control center of the cell. It acts as the cell’s brain by telling it what to do, how to grow, and when to reproduce. The nucleus is home to the cell’s genes. A membrane, a thin layer that allows chemicals to pass in and out to the rest of the cell, surrounds the nucleus.
Detailed explanation-2: -Many cellular signaling events are intrinsically linked to G1 phase of the cell cycle, which is controlled by the RB pathway. Signaling to the RB pathway and thus G1 control by different cellular processes is achieved mainly through the regulation of cyclins and CDK inhibitors (CKIs).
There is 1 question to complete.