Cell Cycle and Mitosis Quiz

Benign tumors remain at their original site and can be surgically removed, while malignant tumors can spread to other parts of the body through the bloodstream.

Malignant tumor cells release signals that stimulate the production of new blood vessels to supply the tumor with food and oxygen.

Metastasis involves the spread of cancer cells from the original tumor to other parts of the body, potentially forming new tumors.

<p>Mitosis regulation prevents uncontrolled cell division, and when this regulation is ignored, normal cells can transform into cancer cells.</p> Signup and view all the answers

<p>After surgically removing a malignant tumor, treatments usually include radiation therapy and chemotherapy to eliminate any remaining cancer cells.</p> Signup and view all the answers

<p>Malignant tumor cells send out signals that promote the formation of new blood vessels, allowing them to enter the bloodstream.</p> Signup and view all the answers

<p>The transformation process is called oncogenesis.</p> Signup and view all the answers

<p>A single cell disregards mitosis regulation by acquiring mutations or changes that enable it to bypass the normal regulatory signals.</p> Signup and view all the answers

<p>One consequence is the formation of tumors due to the abnormal proliferation of cancer cells.</p> Signup and view all the answers

<p>Factors include genetic mutations, exposure to carcinogens, and disruptions in cell signaling pathways.</p> Signup and view all the answers

<p>DNA mutations disrupt normal cellular function, potentially converting a normal cell into a cancer cell by affecting crucial genes.</p> Signup and view all the answers

<p>Tumors develop when abnormal cells divide uncontrollably, often initiated by mutations in specific genes.</p> Signup and view all the answers

<p>Genetic mutations can alter gene functions that regulate cell growth, leading to the unchecked proliferation characteristic of tumors.</p> Signup and view all the answers

<p>Oncogenes and tumor suppressor genes are typically implicated in mutations that lead to cancer development.</p> Signup and view all the answers

<p>A normal cell becomes a cancer cell through DNA mutations that lead to aberrant regulation of cell growth and division.</p> Signup and view all the answers

<p>Interphase consists of G1 phase, S phase, and G2 phase.</p> Signup and view all the answers

<p>During prophase, chromosomes become visible, the nuclear membrane disappears, and centrioles move to opposite ends of the cell.</p> Signup and view all the answers

<p>Chromosomes line up in the middle of the cell with spindle fibers attaching to their centromeres.</p> Signup and view all the answers

<p>During anaphase, chromosomes are pulled apart and move toward opposite poles of the cell.</p> Signup and view all the answers

<p>In animal cells, cytokinesis occurs when the cell membrane draws toward the middle and pinches the cell into two daughter cells.</p> Signup and view all the answers

<p>Cytokinesis in plants forms a cell plate between the new nuclei, while in animals the cell membrane pinches inwards.</p> Signup and view all the answers

<p>Cancer is defined as renegade cells escaping the controls on cell division.</p> Signup and view all the answers

<p>Stem cells are unspecialized cells, while differentiated cells have specific functions and characteristics.</p> Signup and view all the answers