The cell cycle and cell division
What is a cycle of cell growth, development, and division
Cell cycle
What are the three phases of interphase?
G1
S
G2
What are the four phases of mitosis?
Prophase
Metaphase
Anaphase
Telophase
What is cell differentiation?
Cell differentiation is the process by which cells become different types of cells
What is the nucleus splitting in cell division called?
Mitosis
What are the two stages of the cell cycle?
Interphase
Mitotic phase
What is the main point of interphase?
Interphase is a period of growth and development for a cell
What happens during prophase?
DNA concedes into chromosomes
The nucleolus disappears and the nuclear membrane breaks down
Spindle fibers form
What are similar types of cells that work together to carry out specific tasks?
Tissues
We have 23 three of these in our DNA. 23 chromatids come from the mother and 23 chromatids come from the father
Chromosomes
What is the longest stage of the cell cycle?
Interphase
What happens in G1 of interphase?
Rapid cell growth and replication of organelles
What happens in metaphase?
Chromosomes line up in single file a the middle of the cell
What are groups of different tissues working together to perform a particular job?
Organ
We have 46 of these. 23 come from the mother and 23 come from the father. They form up to make our DNA
We have 46 chromatids
23 pairs
How long does it take normal human cells to divide?
Cell division will occur usually once every 24 hours
What happens in the S stage of interphase
DNA replication
What happens in anaphase?
Sister chromatids separate
Spindle fibers begin to shorten, pulling chromatids toward opposite sides of the cell
The cell begins to lengthen
What are groups of different organs that work together to complete a series of tasks?
Organ systems
What are the two new cells that form from the result of mitosis and cytokinesis?
Daughter cells
Explain what cancer is and how does a tumor form
Cancer is unnormalized cells that keep dividing without end. A tumor forms when these uncontrolled cells keep replicating and form a large lump
What happens in G2 during interphase?
Preparation for cell division
What happens in telophase?
A nuclear membrane forms around the chromatin
Chromosomes begin to unwind
Spindle fibers begin to break down
Two identical nuclei form
What is the organization levels of an organism. Start with cells and end at organism.
Similar cells become tissues
Similar tissues become organs
Similar organs working together form organ systems
Similar organ systems working together form body systems
Body systems working together form an organism
What is it called when a cell's cytoplasm and it's contents divide?
Cytokinesis