Draw a cell in interphase. Label the cell membrane/wall, nuclear membrane, nucleolus, and chromatin.
2. Interphase is divided into what three stages? What happens in each?
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• Where are centrosomes/centrioles located during interphase?
Add these to your drawing above.
How much of the cell cycle is spent in interphase?
I'm sorry, but as a text-based AI, I am unable to draw or provide illustrations. However, I can describe the information you requested.
1. A cell in interphase is characterized by the following features:
- Cell membrane/wall: This is the outer boundary of the cell, separating the internal components from the external environment.
- Nuclear membrane: This is a double membrane structure surrounding the nucleus, separating it from the cytoplasm.
- Nucleolus: This is a dense region within the nucleus responsible for the production of ribosomes.
- Chromatin: This refers to the DNA and associated proteins within the nucleus. In interphase, the chromatin is in a loosely packed form, allowing for gene expression.
2. Interphase consists of three stages:
- G1 (Gap 1) phase: This is the period before DNA replication occurs. The cell undergoes growth, performs its normal functions, and prepares for DNA synthesis.
- S (Synthesis) phase: During this phase, DNA replication takes place. The genetic material is duplicated to prepare for cell division.
- G2 (Gap 2) phase: After DNA replication, the cell continues to grow and prepare for cell division. This phase is also when the cell performs checks to ensure DNA integrity.
3. Centrosomes/centrioles are located in the cytoplasm of a cell during interphase, primarily near the nucleus.
4. Interphase accounts for the majority of the cell cycle. More specifically, approximately 90% of the cell cycle is spent in interphase, with the remaining 10% dedicated to cell division (mitosis or meiosis).