Biology: Concepts and Investigations
Biology: Concepts and Investigations
5th Edition
ISBN: 9781260259049
Author: Hoefnagels
Publisher: MCG
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Chapter 8, Problem 5MCQ
Summary Introduction

Introduction:

Apoptosis is the programmed cell death that mostly occurs in multicellular organism. It is then coordinated event which dismantles a cell. It has two main functions in animals, first it eliminates excess cells and second it removes out aging or defective cell.

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Tumors involve a malfunction in this cellular process. a. transcription b. translation c. phagocytosis d. mitosis
A scientist notices that a cancer cell line fails to die when he adds an inducer of apoptosis to his culture of cells. Which hypothesis could explain why the cells fail to die? a. The cells have a mutation that prevents the initiation of apoptosis signaling. b. The cells have lost expression of the receptor for the apoptosis-inducing ligand. c. The cells overexpress a growth factor pathway that inhibits apoptosis. d. All of the above.
Identify which of the following statements is a lie? Select one: a. Apoptosis occurs as the body produces certain enzymes that initiate degradation of nuclear and cytoplasmic material, breaking the cell into necrosis bodies. b. Apoptosis helps maintain a healthy and normal population of cells. c. Apoptosis plays an essential role in growth, immune surveillance, and embryological development.
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