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The cell cycle

What is the cell cycle? The main series of events that takes place that results in DNA replication.
What are the two main stages of the cell cycle. Describe each! 1. Interphase - cell grows + replicates DNA 2. Mitotic phase - cell divides + transfers DNA to daughter cell
Interphase is split into 3 parts name each and describe what happens during each phase.
1. G1- duplicates organelles and centrosomes 2. S Phase - DNA replication 3. G2- finish duplication
The mitotic phase is split into 5 phases list the 5 phases. 1.prophase 2. Metaphase 3. Anaphase 4. Telephase 5. Cytokenesis
Describe prophase Chromatin turns into chromosomes. Nuclear membrane disappears. Centrioles desperate and spindle fibers are formed.
Describe metaphase. Chromosomes line up at the middle Chromosomes are attached to spindle fibers.
Describe anaphase. The sister chromatids(chromosome= 2 sister chromatids) are pulled to opposite sides of the cell. Each separated part is now called a daughter chromosome.
Describe telephase. Nuclear membrane reforms around daughter chromosomes. Daughter chromosomes uncoil to reform chromatin. The cell begins to divide.
Describe cytokinesis. The cell finally divides into two separate cells.
What information does a chromatid contain? DNA Chromosomes
How many chromatids are found in a single chromosome? 2 sister chromatids
What part of the cell allows the cell to maintain homeostasis? The cell membrane.
Which type of transport requires energy? Active transport
Which type of cell transport doesn't require energy? Passive
What does it mean to move down a concentration gradient? Moving a molecule from high to low concentration. (Diffusion)
What is osmosis? Diffusion of water due to differences in concentration. **Ratio of particles:water is made equal**
Explain the direction of water flow if a red blood cell were placed in the following solution: HYPERtonic solution Concentrated-Liquid goes out of the cell because the solution is a higher concentration outside the cell.
Explain the direction of water flow if a red blood cell were placed in the following solution: HYPOtonic solution The cell soaks up the liquid solution because it's a lower concentration outside the cell.
Explain the direction of water flow if a red blood cell were placed in the following solution: Isotonic solution Concentration is = inside + outside of the cell.
Which solution is best for the cell? Isotonic solution
Which solution results in water LEAVING the cell? Hypertonic
Which solution results in water ENTERING the cell? HYPOtonic
What are the two requires for active transport? Proteins Energy
What are the two types of vesicle transport? Exocytosis- exits cell Endocytosis- enters cell
Which type of cessicle transport is used for molecules exiting the cell? Exocytosis
What is one example of active transport? Electron transport chain
What are the two types of endocytosis? Pinocytosis Phagocytosis
During active transport, molecules move _______ the concentration gradient twoard the are of ____ concentration. This is the ______ of diffusion. Against, high, opposite
Can molecules positively or negatively charged freely pass through the cell? NO!!!!
Cenrisome = ______ Centriole
Created by: sydhaz



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