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Vocabulary
Mitosis and Cell Division
Fill in the Blank
Explain
More Practice
100
What is the scientific term that describes asexual reproduction?
Mitosis
100
What happens when a cell divides in regards to the DNA? a. The cell’s volume increases. b. It becomes more difficult for the cell to get get rid of wastes. c. Each daughter cell receives its own copy of the parent cell’s DNA. d. It becomes more difficult for the cell to get enough oxygen and nutrients.
C
100
During________ reproduction, cells can produce genetically different offspring, whereas during _________ reproduction, cells produce genetically identical off spring.
sexual, asexual
100
How does packaging genetic information into chromosomes help the process of cell division?
It allows the genetic info to be doubled without rupturing the cell.
100
What are the phases in the correct order for mitosis?
Prophase, Metaphase, Anaphase, Interphase
200
During which phase in the cell cycle does mitosis happen?
The M phase
200
Which of the following is a correct statement about the events of the cell cycle? a. Little happens during the G1 and G2 phases. b. DNA replicates during cytokinesis. c. The M phase is usually the longest phase. d. Telophase is part of the M phase.
D
200
The number of sister chromatids in a human body cell that is entering cell division is _____________ .
Doubled - they need to double so when the cell splits it can have an exact copy of the instructions
200
Explain why normal cells grown in a petri dish tend to stop growing once they have covered the bottom of the dish?
They stop growing when they touch other cells.
200
When do chromosomes first become visible?
Prophase
300
One difference between cell division in plant cells and in animal cells is that plant cells have
a cell plate
300
Through what phases of mitosis are the centromeres on chromosomes visible?
Prophase, Metaphase, Anaphase
300
Together, the G1 phase, S phase, and G2 phase is called __________________
Interphase
300
Which type of reproduction, sexual or asexual, is best suited for organisms that live in a place where environmental conditions are stable? Explain.
Asexual because they make exact copies and can reproduce faster than those who produce sexually.
300
What does G1 stand for and what phase of the cell cycle is it in?
Growth. Do you want the bonus question?
400
In eukaryotic cells, the timing of the cell cycle is regulated by
Cyclin
400
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 - this is when the stem cells become specialized to turn into something specific
400
During normal development, the cells between toes and fingers die by ___________, a process of programmed cell death.
Apoptosis
400
Explain the difference between chromatids and chromatin.
Chromatin is tangled DNA and chromatids are attached to the centromere of the chromosome.
400
What part of the entire cell cycle is the longest?
S phase. Do you want the bonus question?
500
Cancer is a disorder in which some cells have lost the ability to control their
cell growth. Do you want the bonus question?
500
Which of the following is a possible future benefit of stem cell research? a. developing a vaccine for cancer b. reversing damage from a heart attack c. generating embryos from nonliving tissue d. increasing a person’s intelligence quotient
B not A. Developing a vaccine means it can be prevented. Stem cells can help treat cancer but not prevent it.
500
Embryonic stem cells gathered from the inner cell mass of the blastocyst are called _________, because they can develop into most, but not all human cell types.
pluripotent. Do you want the bonus question?
500
How are metaphase and anaphase different?
Metaphase chromosomes are lining up across the center of the cell and in anaphase they are being separated.
500
What is the difference between totipotent, pluripotent, and multipotent in regards to stem cells?
Totipotent - the stem cell can turn into almost anything Pluripotent - the stem cell can turn into most things, but not everything Multipotent - the stem cell can turn into cells associated in which they came from. Ex: Stem cells from the heart can turn into heart muscle cells. Stem cells from the brain can turn into cells that deal with the brain.