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Biology Chapter 10
Terms in this set (41)
If the surface area of a cell that is shaped like a cube increases 100 times, its volume increases about
Which pair includes a phase of the cell cycle and a cellular process that occurs during that phase?
G2 phase, preparation for mitosis
When during the cell cycle is a cell's DNA replicated?
What role does the centriole play in mitosis?
connect to spindle fibers
What structure is in the center of the chromosome?
What is a whole put together chromosome?
During which phases of mitosis are sister chromatids visible?
Prophase, metaphase, and anaphase
One difference between cell division in plant cells and in animal cells is that plant cells have
a cell plate
The process by which a cell divides into two daughter cells is called
An advantage of sexual reproduction over asexual reproduction is that sexual reproduction
provides genetic diversity
Which of the following is a correct statement about the events of the cell cycle?
Interphase consists of the G1 S and G2 phase
The first phase of mitosis is called
During which phase of mitosis do the chromosomes line up along the middle of the dividing cell?
Which of the following represents the phases of mitosis in their proper sequence?
Prophase, metaphase, anaphase, telophase
What is the role of the spindle fibers during mitosis?
They help separate the chromosomes
The two main stages of cell division are called
mitosis and cytokinesis
During normal mitotic cell division, a parent cell that has four chromosomes will produce two daughter cells, each containing
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
Cancer cells form masses of cells called
A cell with a defective p53 gene is likely
stop responding to growth regulators
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
Why are stem cells improtant
They have the potential to develop into other cell types
The rate at which wastes are produced by a cell partially depends on the cell's
Which of the following happens when a cell divides?
Each daughter cell recieve its own copy of the parent cell's DNA
When during the cell cycle are chromosomes visible?
only during cell division
During which phase in the cell cycle does mitosis happen?
Which of the following are external regulators of the cell cycle?
Which of the following is a possible future benefit of stem cell research?
reversing damage from a heart attack
T or F The SMALLER a cell is, the more difficult it is for the cell to move enough nutrients and wastes across its cell membrane to maintain its normal functions.
T or F During CYTOKINESIS, a cell undergoing cell division finally splits into two daughter cells
T or F Nerve cells are cells that have NOT YET undergone differentiation
T or F most of a cell's growth takes place in the G2 phase of the cell cycle
T or F IN eukaryotes, the SPINDLE breaks down during prophase and re-forms during telophase.
False nuclear envelope
T or F Proteins called CYCLINS help regulate the cell cycle
T or F Stem cells taken from embryos are TOTIPOTENT
During normal development, the cells between toes and fingers die by ________ a process of programmed cell death
The larger a cell becomes, the _____ efficiently it is able to function
The number of sister chromatids in a human body cell that is entering cell division is ___
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
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