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Chapter 10 terms on cell growth and division
Terms in this set (50)
Embryonic stem cells gathered from the inner cell mas of the blastocyst are called ________.
Harvesting ______ stem cells from a willing donor is not as controversial as harvesting techniques that involve the destruction of an embryo.
In all forms of ________, the diseased cells fail to respond to the signals that regulate growth and the cell cycle.
Adult skin cells can no longer become other types of cells because they have already undergone ___________.
During normal development the cells between toes and fingers die by _______ a process of programmed cell death.
The process by which a cell divides into two daughter cells is called ________.
Which of the following happens when a cell divides?
Each daughter cell receives its own copy of the parent cell's DNA
After celldivision each daughter cell has_____.
a higher surface area/volume ratio than the parent cell.
Compared to small cells, large cells have more trouble _____.
moving needed materials in and waste products out.
All of the following are problems that growth causes for cells except_____.
The rate at which wastes are produced by a cell partially depends on the cell's ________.
If the surface of a cell that is shaped like a cube increases 100 times, its volume increases about ________.
As a cell becomes larger, its _________.
volume increase faster than its surface area.
The larger a cell becomes, the ______ efficiently it is able to function.
During _______ reproduction, cell can produce genetically different offspring, whereas during ________ reproduction, cell produce genetically identical offspring.
The number of sister chromatids in a human body cell that is entering cell division is _______.
Cell division occurs in two main stages, the first of which is called _________.
Together the G1 phase, S phase, and G2 phase are called _______.
A cell that has 5 chromosomes in the G1 phase will have _____ chromatids in the G2 phase.
Which of the following is a possible future benefits of stem cell research?
reversing damage from a heart attack
Why are stem cells important?
They have the potential to develop into other cell types
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 _______.
multicellular organisms only
A cell with a defective p53 gene is likely to _______.
stop responding to growth regulators
Cancer is a disorder in which some cells have lost the ability to control their______.
Cancer is a disorder in which some cells have lost the ability to control their_____.
Which of the following are external regulators of the cell cycle?
Cyclins are a family of closely related proteins that ________.
regulate the cell cycle
An advantage of sexual reproduction over asexual reproduction in that sexual reproduction ______.
provides genetic diversity
Which advantage of having the a cell's DNA bundled into separate chromosomes?
During cell division, each daughter cell will get the same number of genes.
Which of the following lists structures from smallest to largest?
double helix, nucleosome, coil, supercoil, chromosome
When during the cell cycle are chromosomes visible?
only during cell division
During which phase in the cell cycle does mitosis happen?
Which pair includes a phase of the cell cycle and a cellular process that occurs during the phase?
G2 phase, preparation for mitosis
When during the cell cycle is a cell's DNA replicated?
Which event occurs during interphase?
Which of the following is a correct statement about the events of the cell cycle?
Interphase consists of the G1, S, and G2 phases
One difference between cell
divison in plants cells and in animal cells is that plant cells have ______.
a cell plate
During normal mitotic cell division, a parent cell that has four chromosmes will produce two daughter cells, each containing________.
The two main stages of cell division are called_________.
mitosis and cyokinesis
What role of the spindle fibers during mitosis?
The help separate the chromosomes
Which of the following represents the phases of mitosis in their proper sequences?
prophase, metaphase, anaphase, telophase.
During which phase of mitosis do the chromosomes line up along the middle of the dividing cell?
The first phase of mitosis is called_______.
Which of the following is a phase of mitosis?
During which phase of mitosis are structures like th eone shown in figure 10-5 visible?
prophase, metaphase, and anaphase
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
Cells grown in a petri dish tend to divide until they form a thin layer covering the bottom of the dish, If cells are removed from the middle of the dish the cells bordering the open space will being dividing until they have filled the empty space, What does this experiment show?
The controls on cell growth and division can be turned on and off
Which of the following explains why normal cells grown in a petri dish tend to stop growing once they have covered the bottom of the dish?
Contact with other cells stops cell growth
In eukaryotic cells, the timing of the cell cycle is regulated by ____.
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