Biology: Science for Life with Physiology (6th Edition) (Belk, Border & Maier, The Biology: Science for Life Series, 5th Edition)
6th Edition
ISBN: 9780134555430
Author: Colleen Belk, Virginia Borden Maier
Publisher: PEARSON
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Chapter 6, Problem 3AAATB
Summary Introduction
To explain:
The increased risk of radiation therapy.
Introduction:
Cancer is a condition that occurs when cells replicate or copy themselves. Uncontrolled cell division causes the cell to pile up to become a lump or tumor. A tumor is a clump of cells that do not have a function. Tumors that remain inside the body and do not affect the surrounding structures are known to be benign. Others become cancerous if they attack the tissues around them and become metastatic or malignant.
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Chapter 6 Solutions
Biology: Science for Life with Physiology (6th Edition) (Belk, Border & Maier, The Biology: Science for Life Series, 5th Edition)
Ch. 6 - Describe three ways that cancer cells differ from...Ch. 6 - Prob. 2LTBCh. 6 - A cell that begins mitosis with 46 chromosomes...Ch. 6 - The centromere is a region at which ___________....Ch. 6 - Prob. 5LTBCh. 6 - At metaphase of mitosis, ___________. the...Ch. 6 - Sister chromatids ___________. are two different...Ch. 6 - DNA polymerase ___________. attaches sister...Ch. 6 - Prob. 9LTBCh. 6 - In what ways is the cell cycle similar in plant...
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- The most common therapeutic approaches to treating cancer include all of the following except ________. a. chemotherapy b. irradiation of tumors c. surgery to remove cancerous tissue d. administering doses of vitaminsarrow_forwardBenign tumors: a. are noncancerous growths that do not spread to other tissues b. do not contain mutations c. are malignant and clonal in origin d. metastasize to other tissues e. none of thesearrow_forwardWhat are some factors that epidemiologists have associated with a relatively high risk of developing cancer?arrow_forward
- Studies have shown that there are significant differences in cancer rates among different ethnic groups. For example, the Japanese have very high rates of colon cancer but very low rates of breast cancer. It has also been demonstrated that when members of low-risk ethnic groups move to high-risk areas, their cancer risks rise to those of the high-risk area. For example, Japanese who live in the United States, where the risk of breast cancer is high, have higher rates of breast cancer than do Japanese who live in Japan. What are some of the possible explanations for this phenomenon? What factors may explain why the Japanese have higher rates of colon cancer than do other ethnic groups?arrow_forward________ are characteristic of cancer. a. Malignant cells b. Neoplasms c. Tumorsarrow_forwardOutline the steps that lead to a cell becoming cancerous.arrow_forward
- Figure 17.15 In 2011, the United States Preventative Services Task Force recommended against using the PSA test to screen healthy men for prostate cancer. Their recommendation is based on evidence that screening does not reduce the risk of death from prostate cancer. Prostate cancer often develops very slowly and does not cause problems, while the cancer treatment can have severe side effects. The PCA3 test is considered to be more accurate, but screening may still result in men who would not have been harmed by the cancer itself suffering side effects from treatment. What do you think? Should all healthy men be screened for prostate cancer using the PCA3 or PSA test? Should people in general be screened to find out if they have a genetic risk for cancer or other diseases?arrow_forwardWhy is the tumor microenvironment important to cancer progression?arrow_forwardExplain why each of the following is a risk factor for cancer: age, loss-of-function mutations in repair or tumor-suppressor genes, certain viruses such as HPV, chemical mutagens, radiation/UV lightarrow_forward
- Although cancer is not a contagious disease in humans or other vertebrates, there have been rare cases in which cancers have spread from one organism to another. Describe three cases of these contagious cancers and what conditions might have led to their appearance. For an introduction to this topic, see http:// www.cancer.org/cancer/cancerbasics/is-cancer-contagious.arrow_forwardWhether the statement "Cancer therapies directed solely at killing the rapidly dividing cells that make up the bulk of a tumor are unlikely to eliminate the cancer from many patients" is true or false.arrow_forwardWhen cancer cells metastasize, they: a. b. ○ c. travel to distant and different body parts to begin new tumors. stay in their place of origin to destroy adjacent tissues. are not able to invade blood vessels.arrow_forward
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