Chapter 10 Biology

The first phase of mitosis is called a. prophase. b. anaphase. c. metaphase. d. interphase.

A

The process by which a cell divides into two daughter cells is called a. cell division. b. metaphase. c. interphase. d. mitosis.

A

The structure labeled A in Figure 10-2 is called the a. centromere. b. centriole. c. sister chromatid. d. spindle.

A

What is the role of the spindle during mitosis? a. It helps separate the chromosomes. b. It breaks down the nuclear membrane. c. It duplicates the DNA. d. It divides the cell in half.

A

Which event occurs during interphase? a. The cell grows. b. Centrioles appear. c. Spindle fibers begin to form. d. Centromeres divide.

A

Which of the following represents the phases of mitosis in their proper sequence? a. prophase, metaphase, anaphase, telophase b. interphase, prophase, metaphase, anaphase, telophase c. interphase, prophase, metaphase, telophase d. prophase, metaphase, anaphase, telophase, cytokinesis

A

Cancer is a disorder in which some cells have lost the ability to control their a. size. b. spindle fibers. c. growth rate. d. surface area.

C

During which phase of mitosis do the chromosomes line up along the middle of the dividing cell? a. prophase b. telophase c. metaphase d. anaphase

C

The speed with which wastes are produced by a cell depends on the cell's ___________________________. a. ratio of surface area to volume. b. environment. c. volume. d. surface area.

C

The structures labeled B in Figure 10-2 are called a. centromeres. b. centrioles. c. sister chromatids. d. spindles.

C

When during the cell cycle are chromosomes visible? a. only during interphase b. only when they are being replicated c. only during cell division d. only during the G1 phase

C

When during the cell cycle is a cell's DNA replicated? a. G1 phase b. G2 phase c. S phase d. M phase

C

All of the following are problems that growth causes for cells EXCEPT a. DNA overload. b. excess oxygen. c. obtaining enough food. d. expelling wastes.

B

Cancer cells form masses of cells called a. tumors. b. cyclins. c. growth factors. d. p53.

A

During normal mitotic cell division, a parent cell having four chromosomes will produce two daughter cells, each containing a. two chromosomes. b. four chromosomes. c. eight chromosomes. d. sixteen chromosomes.

B

During which phase(s) of mitosis are structures like the one shown in Figure 10-2 visible? a. anaphase and prophase b. prophase and metaphase c. metaphase only d. anaphase and interphase

B

In eukaryotic cells, the timing of the cell cycle is regulated by a. the centrioles. b. cyclins. c. the spindle. d. all of the above

B

What happens when cells come into contact with other cells? a. They divide more quickly. b. They stop growing. c. They produce cyclins. d. They produce p53.

B

Which pair is correct? a. G1 phase, DNA replication b. G2 phase, preparation for mitosis c. S phase, cell division d. M phase, cell growth

B

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

As a cell grows, it a. places more demands on its DNA. b. uses up food and oxygen more quickly. c. has more trouble moving enough materials across its cell membrane. d. all of the above

D

Which of the following happens when a cell divides? a. The cell's volume increases. b. It becomes more difficult for the cell to get enough oxygen and nutrients. c. The cell has DNA overload. d. Each daughter cell receives its own copy of the parent cell's DNA.

D