List and define two reasons why a cell divides rather than continue to grow indefinitely (why are cells so small?). Define sexual and asexual reproduction; list the advantages and... List and define two reasons why a cell divides rather than continue to grow indefinitely (why are cells so small?). Define sexual and asexual reproduction; list the advantages and disadvantages of each (from a survival perspective). Draw a prokaryotic chromosome. Then, draw a eukaryotic chromosome and label: centromere, sister chromatids, chromatin. What is the relationship between chromosomes and chromatin? How many chromosomes are in each normal human cell? List the stages of the cell cycle in eukaryotic cells with a short description of each.
Understand the Problem
The question is asking for a biology study guide focusing on cell growth and division, specifically two reasons for cell division, the definitions and comparisons of sexual and asexual reproduction, and a diagrammatic representation of prokaryotic and eukaryotic chromosomes.
Answer
Cells divide for efficiency and DNA management. Sexual reproduction offers diversity; asexual is faster. Chromatin forms chromosomes; humans have 46 chromosomes. Cell cycle: G1, S, G2, M.
Cells divide to maintain efficiency in nutrient exchange and to avoid DNA overloading. Sexual reproduction involves genetic diversity but is slower, while asexual reproduction is faster but lacks diversity. Chromatin is DNA and protein; it forms chromosomes. Humans have 46 chromosomes; the cell cycle includes G1, S, G2, and M phases.
Answer for screen readers
Cells divide to maintain efficiency in nutrient exchange and to avoid DNA overloading. Sexual reproduction involves genetic diversity but is slower, while asexual reproduction is faster but lacks diversity. Chromatin is DNA and protein; it forms chromosomes. Humans have 46 chromosomes; the cell cycle includes G1, S, G2, and M phases.
More Information
Cells divide to ensure they remain small for efficient nutrient uptake and efficient DNA function. Chromosomes are structures that carry genetic information, tightly packed forms of chromatin. Sexual reproduction's diversity aids species survival; asexual is simpler and faster.
Tips
Confusing chromatin with chromosomes; remember chromatin condenses to form chromosomes.
Sources
- Why Do Cells Need to Divide? | Importance & Purpose - Study.com - study.com
- Cell Division - Mitosis and Meiosis - Ask A Biologist - askabiologist.asu.edu
- 7.2: Cell Cycle and Cell Division - Biology LibreTexts - bio.libretexts.org
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