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Cell Growth, Division, and Reproduction
The Process of Cell Division
Regulating the Cell Cycle
Cell Differentiation
More ??s
100
An advantage of sexual reproduction over asexual reproduction is that sexual reproduction... A) takes less time. B) requires more time. C) provides genetic diversity. D) produces identical offspring.
C) provides genetic diversity.
100
When during the cell cycle are chromosomes visible? A) only during interphase. B) only when replicating. C) only during cell division. D) only during the G1 phase.
C) only during cell division.
100
When cells are grown in a laboratory, which factor can stop normal cells from dividing? A) contact with other cells. B) growth factors. C) a cut in the skin. D) injection of cyclin.
A) contact with other cells.
100
When during the cell cycle is a cell's DNA replcated? A) G1 phase. B) G2 phase. C) S phase. D) M phase.
S phase
200
Which is one advantage of having a cell's DNA bundled into separate chromosomes? A) during DNA replication, the number of chromosomes is cut in half. B) during DNA replication, the number of chromosomes stays the same. C) during cell division, each daughter cell will get the same number of genes. D) during cell division, each daughter cell will get a random number of genes.
C) during cell division, each daughter cell will get the same number of genes.
200
Which event occurs during interphase? A) the cytoplasm divides. B) centrioles duplicate. C) spindle fibers begin to form. D) centromeres divide.
B) centrioles duplicate.
200
Cells grow to cover a surface then stop. If you remove cells from the middle, they divide again to fill the space. This shows... A) cell division is a completely random process. B) once cells divide, they can never divide again. C) the controls on cell growth and division can be turned on and off. D) there is only a limited amount of DNA available to a given group of cells.
C) the controls on cell growth and division can be turned on and off.
200
Cells become specialized through a process called...?
Differentiation.
200
Stem cells are pluripotent. Meaning what?
They are capable of developing into many but not all types of cells.
300
The rate at which wastes are produced by a cell partially depends on the cell's... A) ratio of surfact area to volume. B) type of membrane. C) volume. D) surface area.
C) volume.
300
What role do centrioles play in mitosis? A) replicate DNA. B) increase cell volume. C) connect spindle fibers. D) dissolve nuclear envelope.
C) connect spindle fibers.
300
Cancer affects... A) humans only. B) unicellular organisms only. C) multicellular organisms only. D) multicellular and unicellular organisms.
C) multicellular organisms only.
300
Why are stem cells important? A) they have specialized DNA. B) they are incapable of becoming cancer cells. C) they have the potential to undergo cell division. D) they have the potential to develop into other cell types.
D) they have the potential to develop into other cell types.
300
What is cytokinesis?
The division of the cytoplasm.
400
How do hydras reproduce?
Budding
400
During normal mitotic cell division, a parent cell that has 4 chromosomes will produce two daughter cells with how many chromosomes?
4
400
What are cyclins?
A family of proteins that regulate the timing of the cell cycle in eukaryotic cells
400
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) reversing damage from a heart attack.
400
After 4 days of development, a human embryo forms into a...?
Blastocyst.
500
Which type of organisms reproduce asexually? A) only single celled organisms. B) only multicellular organisms. C) only eukaryotic organisms. D) none of the above.
D) none of the above.
500
One difference between cell division in plant cells and in animal cells is that plant cells have... A) centrioles. B) centromeres. C) a cell plate. D) chromatin.
C) a cell plate.
500
What is the programmed death of a cell?
Apoptosis
500
What are the two types of stem cells?
Embryonic and adult stem cells.
500
In which phase of mitosis do the chromosomes separate into 2 groups near the poles?
Anaphase.