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Cell Cycle Bio Test
Question | Answer |
---|---|
How many chromosomes do humans have? | 46 |
What is a chromosome? | DNA, how we hold our DNA |
What is chromatin? | Can see separated strands of DNA (DNA is usable) |
What is a chromatid? | Highly compact DNA |
What do we call two identical chromatids that are connected? | Sister chromatids |
What is the place where the chromatids are connected called? | Centromere |
What is the process called that bacteria use to divide? | Binary Fision |
How is a bacteria chromosome different from that of a human? | Bacteria only has one, & is circular / humans have 46 different strands of DNA |
Give three reasons that cells divide. | Growth, Repair, Replace |
What stage of the cell cycle does the cell stay in most of the time? | Interphase , (G1) |
What stage of the cell cycle is the cell growing? | G1 & a little more in G2 |
What happens in G1 phase? | Growing, doing its normal job/jobs, maturing |
What happens in S phase? | DNA duplicates |
What happens in G2 phase? | Final growth, preparing for division. |
Describe what the G0 phase is. | |
Give two examples of cells that remain in interphase and do not enter into mitosis. | |
What stage of the cell cycle is the nucleus splitting? | |
What do we call the original cell that eventually divides? | |
What do we call the two cells after the division has occurred? | |
What stage of the cell cycle is the cell splitting? | |
What are the stages of mitosis in order? | |
What happens in prophase? (Draw a diagram.) | |
What happens in prometaphase? (Draw a diagram.) | |
What happens in metaphase? (Draw a diagram.) | |
What happens in anaphase? (Draw a diagram.) | |
What happens in telophase? (Draw a diagram.) | |
What is cytokinesis? (Draw a diagram.) | |
How is cytokinesis different in plant and animal cells? | |
What stage of the cell cycle is the longest? | |
What stage of the cell cycle is the shortest? | |
What stage of mitosis is the longest? | |
What stage of mitosis is the shortest? | |
What does the mitotic spindle do? | |
What is the role of a centrosome? | |
Give three major contributing factors that control control cell division. | |
What is the G1 checkpoint checking for? | |
What is the G2 checkpoint checking for? | |
When does the M checkpoint occur? | |
What does the M checkpoint check for? | |
What do we call it when a cell loses control of the cell cycle? | |
What is the difference between a tumor and cancer? | |
What does benign mean? | |
What does malignant mean? | |
What is metastasis? | |
Give three ways to treat cancers. | |
What are the three main types of cancer and how do they differ? | |
What is a kinetochore? | |
At what phase does the nuclear envelope disappear? | |
At what phase does the nuclear envelope reappear? | |
At what phase do chromosomes begin to condense? | |
At what stage do the sister chromatids get pulled apart? | |
At what stage do the sister chromatid pairs line up at the cell equator? | |
Interphase takes... | 23 hours |
G1 phase in interphase takes... | 11 hours |
S phase in interphase takes... | 8-10 hours |
G2 phase in interphase takes... | 3-4 hours |
Mitosis takes... | 1 hour |
Prophase in mitosis takes... | 15 minutes |
Prometaphase in mitosis takes... | 15 minutes |
Metaphase in mitosis takes... | 15-20 minutes |
Anaphase in mitosis takes... | 3 minutes |
Telophase in mitosis takes... | 7 minutes |
Cytokinesis takes... | 5 minutes |