CHAPTER 11 BANK

The first checkpoint in the cell cycle occurs at the end of the ____ phase, which monitors the size of the cell and whether DNA has been damaged. A. G1 B. G2 C. G0 D. S

*A. G1 *

The phase of the cell cycle occurring immediately after cell division is known as ____. A. G1 phase B. S phase C. G2 phase D. G0 phase

*A. G1 phase*

______ established the framework for understanding the stages of cell division. A. Walther Flemming B. Eduard Strasberger C. Julius von Sachs D. Theodore Engelmann

*A. Walther Flemming *

______ cells either skip the G0 phase or pass through it very quickly. A. cancer B. liver C. nerve D. bone marrow

*A. cancer*

_____ accounts for most of the time that elapses during each cell cycle. A. interphase B. prophase C. metaphase D. telophase

*A. interphase*

During the cell cycle, a cell will proceed to _____ only if the DNA is undamaged and DNA replication has occurred correctly. A. mitosis B. the S phase C. the G1 phase D. the G2 phase

*A. mitosis *

Together, interphase and mitosis constitute which of the following? A. the cell cycle B. cell division C. cell death D. the G1 phase

*A. the cell cycle *

Which of the following is the distinguishing feature of prometaphase? A. formation of a cell plate B. attachment of the sister chromatids to the spindle fibers C. appearance of short tubules called asters D. all of the above

*B. attachment of the sister chromatids to the spindle fibers*

Which of the following occurs during the S phase of the cell cycle? A. primary cell growth B. chromosome replication C. replication of organelles D. nothing; the cell is resting

*B. chromosome replication*

Cell division is the process by which a somatic cell divides to produce two identical ____ cells. A. sex B. daughter C. parent D. non-nucleated

*B. daughter*

Slow-growing cells can remain in G1 for more than a year. An example of this type would be ___. A. bone marrow B. liver C. epithelial D. all of these

*B. liver*

During the G0 phase of the cell cycle, the cell is ______. A. actively dividing B. metabolically active, but not proliferative C. metabolically inactive D. all of these

*B. metabolically active, but not proliferative *

The first stage of mitosis is called _____. A. anaphase B. prophase C. interphase D. telophase

*B. prophase*

Plant cell division, unlike animal cell division, involves ______. A. cytokinesis B. the formation of a cell plate C. the formation of four daughter cells D. only three phases

*B. the formation of a cell plate*

Which of the following events of the G2 phase signals the beginning of mitosis? A. the near-doubling of the cell volume B. the start of chromosome condensation C. Further replication of the mitochondria D. Further replication of microtubules

*B. the start of chromosome condensation *

The cell cycle has built-in checkpoints to ensure that cell division is occurring properly. The first checkpoint is found at the end of _____. A. S phase B. G2 C. G1 D. telophase

*C. G1 *

Prophase is characterized by which of the following? A. Separation of the sister chromatids from the centromere. B. Formation of the cell plate in plants. C. Migration of the centriole pairs toward opposite poles. D. Duplication of the centrioles.

*C. Migration of the centriole pairs toward opposite poles.*

Which of the following does NOT occur during interphase? A. Important proteins are synthesized. B. DNA replication occurs. C. The cell rests for a long period of time. D. The structures used during cell division are assembled.

*C. The cell rests for a long period of time.*

Which of the following occurs during metaphase? A. The sister chromatids separate from their centromere. B. The spindle is disassembled. C. The pairs of sister chromatids align along the equatorial plate. D. Short tubules called asters appear.

*C. The pairs of sister chromatids align along the equatorial plate.*

Which of the following resembles a ball of cells and occurs in the early-stage embryonic development of an animal? A. kinetochore B. zygote C. blastula D. centromere

*C. blastula*

Division of the cytoplasm during cell division is known as ____. A. mitosis B. karyokinesis C. cytokinesis D. telekinesis

*C. cytokinesis*

Which of the following cells is NOT a somatic cell? A. liver B. heart C. egg/sperm D. kidney

*C. egg/sperm*

On completion of telophase and cytokinesis, the daughter cells _____. A. enter a resting period B. undergo mitosis C. enter the G1 phase D. undergo apoptosis

*C. enter the G1 phase*

Cytokinesis occurs after which phase of mitosis? A. prophase B. anaphase C. telophase D. metaphase

*C. telophase*

Cell division is the mechanism by which new cells are produced for _____. A. growth B. repair/replacement C. forming a new organism D. all of these

*D. all of these*

Which of the following influence the time required to complete the cell cycle? A. hormones B. growth factors C. cell types D. all of these

*D. all of these*

Which of the following is a component of interphase? A. S phase B. G1 phase C. G2 phase D. all of these

*D. all of these*

Uneven distribution of chromosomes during this stage of mitosis can result in devastating consequences. A. interphase B. prophase C. metaphase D. anaphase

*D. anaphase*

The term *apoptosis* refers to _____. A. cell division B. a checkpoint in the cell cycle C. sudden, unexplained cell death D. programmed cell death

*D. programmed cell death*

During mitosis, the cell spends most of its time in _____. A. telophase B. anaphase C. metaphase D. prophase

*D. prophase*