Question |
Answer |
What are the 4 main stages of the cell cycle ? |
Gap 1 , Synthesis , Gap 2 , mitosis |
Why is cell size limited ? |
If the cell is too small it won't contain all necessary organelles and molecules . If it gets too big it'll cause surface area too small for adequate exchange of materials. |
Why are your cells divided at different rates ? |
Divided to link to your body's needs fro cells. |
Why do some cells have to be large ? |
The structure gives the neuron large surface area with relatively small increase in volume. |
What is a chromosome ? |
It's a long continuous thread of DNA consists of numerous genes along with regulatory information. |
Why do chromosomes condense at the start of mitosis ? |
To carry out its necessary functions. |
What's a histones function ? |
DNA wraps around ti at regular intervals to interact with each other , further compacting the DNA. |
What does the mitosis cell do ? |
Divides cells nucleus into two genetically identical nuclei , which forms eggs and sperm that prepares them for cytokinesis. |
What does the interphase cell do ? |
It provides critical time and it becomes larger to divide. |
What is cytokinesis ? |
Divides cytoplasm into two cells which differs in animal and plant cells. |
What is prophase ? |
The nuclear envelope breaks down. the nucleolus disappears , and the centrosomes centrioles migrate to opposie sides. |
How many stages does the cell cycle have ? |
The cell cycle has 9 stages . |
What is telophase ? |
A complete set of identical chromosome positioned at each pole of cell. |
Why do spindle fibers attach to a protein structure in metaphase? |
To align the chromosomes along the cell equator , around the middle of the cell. |
What happens during anaphase ? |
Sister chromatids separate from each other. |