Chapter 8

Question 1

Reproduction, growth and development, and replacement of dead cells are required for what to function

Answer 1

cell division

Question 2

Splitting of one cell into two cells and replication of the genetic material are processes involved in what type of sexual production

Answer 2

asexual

Question 3

Are these true about apoptosis: programmed cell death, regulated sequence of events, and normal part of development T or F

Answer 3

True

Question 4

A cell’s ____ is defined as all the cell’s DNA and consists of one or more chromosomes containing the DNA

Answer 4

genome

Question 5

A single molecule of DNA and its associated proteins is called what

Answer 5

chromosome

Question 6

Cell division is necessary for an organism to

Answer 6

reproduce

Question 7

What enzyme adds complementary bases to exposed single strands of DNA during DNA replication

Answer 7

DNA polymerase

Question 8

In prokaryotic asexual reproduction called _____, the DNA replicates and the cell splits into two daughter cells

Answer 8

binary fission

Question 9

Regulated cell death that is a necessary part of development is called

Answer 9

apoptosis

Question 10

In prokaryotes, DNA is contained in ____

Answer 10

a single chromosome

Question 11

In eukaryotes, DNA is contained in _____

Answer 11

multiple chromosomes

Question 12

What must a eukaryotic or prokaryotic cell need to divid

Answer 12

must duplicate its entire genome

Question 13

In the eukaryotic cell cycle, the time of cell growth between successive cell divisions is called

Answer 13

interphase

Question 14

A eukaryotic chromosome consists of

Answer 14

DNA and associated proteins

Question 15

What occurs during interphase

Answer 15

protein production and DNA replication

Question 16

What is the role of the enxyme DNA polymerase in DNA replication

Answer 16

add complementary DNA nucleotides

Question 17

Binary fission is a type of ____ seen in prokaryotes, such as archae and bacteria

Answer 17

asexual reproduction

Question 18

The type of cell division that separates chromosomes and produces two daughter cells with identical nuclei is what

Answer 18

mitosis

Question 19

division of the contents of the nucleus is what event in the cell cycle

Answer 19

mitosis

Question 20

what is the division of the cell itself is what part of the cell cycle

Answer 20

cytokinesis

Question 21

What type of cell may divid constantly throughout their life

Answer 21

skin cells

Question 22

The enzyme called DNA _____ adds new complementary DNA nucleotides to a single-stranded DNA template

Answer 22

polymerase

Question 23

“Growth Factors” are chemical signals that bind to recepters on a cell _____ and trigger ________ _______

Answer 23

membrane; cell division

Question 24

Duplicated chromoses line up and are pulled to opposite poles of the cell is from what cell cycle

Answer 24

mitosis

Question 25

What feature that classifies a disease as cancer

Answer 25

malignant cells

Question 26

In the eukaryotic cell cycle, the time of cell growth between successive cell divisions is called

Answer 26

interphase

Question 27

Examples of cells that divide constantly to produce new cells are

Answer 27

cells at the tips of plants roots and bone marrow stem cells

Question 28

T or F: Growth factos bind to receptors on the cell membrane

Answer 28

True

Question 29

T or F: In response to a single, a cascade of chemical reactions inside the cell initiates cell division

Answer 29

True

Question 30

T or F: A growth factor stimulates the production of new skin cells at a wound site

Answer 30

True

Question 31

Tumor supressor genes and oncogenes are types of genes in which genetic mutations can cause what to develop

Answer 31

cancer

Question 32

What type of cells in tumors can survive chemotherapy

Answer 32

drug-resistant

Question 33

Genetic mutations can lead to a disease characterized by uncontrolled cell growth called

Answer 33

cancer

Question 34

What is the difference from apoptosis and necrosis

Answer 34

- apoptosis is programmed death - necrosis is accidental death