Table of contents

1. Overview of Cell Biology2h 49m
2. Chemical Components of Cells1h 14m
3. Energy1h 33m
4. DNA, Chromosomes, and Genomes2h 31m
5. DNA to RNA to Protein2h 31m
6. Proteins1h 36m
7. Gene Expression1h 42m
8. Membrane Structure1h 4m
- The Lipid Bilayer
  38m
- Membrane Proteins
  25m
9. Transport Across Membranes1h 52m
10. Anerobic Respiration1h 5m
11. Aerobic Respiration1h 11m
12. Photosynthesis52m
13. Intracellular Protein Transport2h 18m
14. Cell Signaling1h 28m
15. Cytoskeleton and Cell Movement1h 39m
16. Cell Division3h 5m
17. Meiosis and Sexual Reproduction50m
18. Cell Junctions and Tissues48m
19. Stem Cells13m
- Stem Cells
  13m
20. Cancer44m
21. The Immune System1h 6m
22. Techniques in Cell Biology1h 41m

20. Cancer

Carcinogens

Cell Biology

20. Cancer

Carcinogens

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Multiple Choice

Which of the following best describes carcinogens?

Proteins that repair damaged DNA in cells

Hormones that regulate cell growth

Enzymes that promote cell division

Substances that can cause cancer by inducing genetic mutations

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Verified step by step guidance

Understand the term 'carcinogens': Carcinogens are substances or agents that have the potential to cause cancer by inducing genetic mutations or disrupting normal cellular processes.

Analyze the options provided: Review each option to determine if it aligns with the definition of carcinogens.

Option 1: 'Proteins that repair damaged DNA in cells' - This describes DNA repair proteins, which help maintain genomic integrity and prevent mutations, not carcinogens.

Option 2: 'Hormones that regulate cell growth' - Hormones regulate normal physiological processes and are not inherently carcinogenic unless they disrupt normal cell regulation in specific contexts.

Option 3: 'Enzymes that promote cell division' - Enzymes involved in cell division are part of normal cellular processes and are not carcinogens. The correct answer is the final option: 'Substances that can cause cancer by inducing genetic mutations,' as this directly matches the definition of carcinogens.