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Bio Ch 11 Unit Test

Biology Chapter 12 Unit Test

QuestionAnswer
All of the following are problems that growth causes far cells except. Excess Oxygen
The two main stages of cell division are called_______. Mitosis and Cytokinesis
Cancer cells form masses of cells called______. Tumors
The process by which a cell divides into two daughter cells is called______. Cell Division
Some cells form a cell plate during cytokinesis, which of the following is true of the cells in figure 10.6 above? Only cell B. forms a cell plate in during cytokinesis.
Which of the following is a correct statement about the events of the cell cycle? Interphase consist of the G1, S, and G2 phases.
During normal mitotic cell division a parent cell that has 4 chromosomes will produce two daughter cells each containing______. 4 Chromosomes
Why are stem cells important? They have the potential to develop into other cell types.
When during the cell cycle is a cell's DNA replicated? S Phase
Cyclins are a family of closely related proteins that______. regulate the cell cycle.
Which of the following happens when a cell divides? Each daughter cell receives its own copy of the parent cell's DNA.
An advantage of sexual reproduction over asexual reproduction is the sexual reproduction______. provides genetic diversity.
The first phase of mitosis is called______? Prophase
When cells are grown in a laboratory, which of the following is a factor that can stop normal cells from dividing. Contact with other cells.
During early development, all cells in the embryo of a multicellular organism are identical. Later on in development, the cells will become specialized through a process called_______. Differentiation
What is the role of the spindle fibers during mitosis? They help separate the chromosomes
Compared to small cells, large cells have more trouble_______. moving needed materials in and waste products out.
In figure 10.4, what role does structure A play in mitosis? Connect to spindle fibers.
During which phase of mitosis do the chromosomes line up along the middle of the dividing cell. Metaphase
After cell division each daughter cell has______. a higher surface area to volume ratio than the parent cell.
Which of the following are external regulators of the cell cycle? Growth Factors
When during the cell cycle are chromosomes visible? Only during cell division
During which phase in the cell cycle does mitosis happen? M Phase
Cell division is represented in figure 10.3 by the letter______. D.
Most of a cell's growth takes place during the____Phase of the cell cycle. G1
The________a cell is the more difficult it is for the cell to move enough nutrients and waste across its cell membrane to maintain its normal functions. Larger
In eukaryotes the_______breaks down during prophase and reforms during telophase. Nuclear Envelope
Mitosis is a form of______reproduction because the daughter cells that form are identical to the parent cell. Asexual
Typically the longest phase of mitosis is______. Prophase
The number of sister chromatids in a human body cell that is entering cell division is______. 92
The structure labeled A in figure 10.8 is called the_____. Cell Plate
Look at figure 10.8 once structure A has completely formed another phase of the cell cycle will start. This phase will be called______. Interphase
Adult skin cells can no longer become other types of cells because that have already undergone_______. Differentiation
The larger a cell becomes the_______efficently it is able to function. Less
Cell division occurs in two main stages. The first of which is called______. Mitosis
Prokaryotes reproduce by an asexual process known as______. Binary Fission
The process shown in figure 10.8 occurs only in_____cells that are going through cytokinesis. Plant
A cell that has 5 chromosomes in the G1 phase will have_____chromatids in the G2 phase. 10
Created by: P.V.A.
 

 



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