Chapter 5
What does a cell make during the synthesis stage of the cell cycle?
A copy of DNA
During which phase of mitosis do sister chromatids separate from each other?
Anaphase
Which of the following statements is true of cytokinesis?
Completes the cell cycle
During interphase a cell grows, duplicates organelles, and?
Copies DNA
The gap 1, gap 2, and synthesis stages of the cell cycle make up?
Interphase
In which stage of the cell Cycle do nucleus and it's contents divide?
Mitosis
The process of organizing and condensing DNA into its compact form takes place at the start of?
Mitosis
If a cell cannot move enough material through its membrane to survive, then the ratio of its surface area to volume is?
Too small
Which type of stem cell can grow into any other cell type?
Totipotent
Which phrase best describes cancer?
Uncontrolled cell growth
Which of the following phrases best describes cytokinesis?
division of the cytoplasm
Which phrase best describes fragmentation?
parent organism splits into pieces, each of which forms a new organism
What is the term for the programmed death of cells?
Apoptosis
Stem cells are important to multicellular organisms because of their?
Capacity to differentiate
Substances known to produce or promote cancer are called?
Carcinogens
Which of the following statements is true of asexual reproduction?
It produces genetically identical offspring
Which statement is true of the chromosome shown in Figure 5.2?
Its left and right halves carry identical genetic information.
Multicellular organisms use mitosis for growth, development, and?
Repair
In a single-celled organism, mitosis is used for?
Reproduction
Which of the following is true of malignant tumors?
They can cause tumors in other parts of the body
Why do the cells lining the stomach divide more quickly than those in the liver?
They undergo more wear and tear.
Before a cell can move from the G or G stage to the next stage of the cell cycle, it must grow and?
pass a critical checkpoint
If a tumor is malignant, then cancer cells from the tumor?
Can form more tumors
The processes of mitosis and cytokinesis produce two identical?
Daughter cells
Which statement describes the chromosome shown in Figure 5.2?
It is made up of two chromatids
During which of the following stages shown in Figure 5.1 does cytokinesis take place?
Mitosis
During which of the following stages shown in Figure 5.1 does the cytoplasm of a cell divide?
Mitosis
Which of the following reproduce asexually through mitosis?
some multicellular and unicellular eukaryotes
A plant's leaf consists of?
various types of tissue.
A hormone present in the blood can stimulate the growth of certain cells. The hormone is acting as a(n)?
External factor
Proteins from outside a cell that stimulate it to divide are called?
Growth factors
Which statement is true about the rates of cell division in eukaryotes?
They vary greatly within an organism
Which of the following limits the maximum size of a cell?
the ratio of cell surface area to volume
One difference between a cancer cell and a normal cell is that?
cancer cells can divide in the absence of growth factors
Which statement about the process of binary fission is true?
It does not take place in multicellular organisms.
What is the main difference between binary fission and mitosis?
Binary fission occurs in single-celled organisms only
Which of the following is a direct result of a normal cell's ability to express only certain genes?
Cells can differentiate and specialize
One difference between a cancer cell and a normal cell is that?
cancer cells divide uncontrollably.
During the gap 1 stage of the cell cycle, a cell?
carries out its normal functions
Which sequence shows the progression from least complex structure to most complex structure?
cell-tissue-organ-organ system
Kinases and cyclins are internal factors that?
control the cell cycle
