Question 1

Which of the following is NOT true concerning mitosis?

Accepted Answer

A) Plant cells lack centrioles while animal cells do not. 
B) Both plant and animal cells undergo cytokinesis. 
C) Mitosis allows growth and increase in size in both plants and animals. 
D) Animal cells form a cell plate during cytokinesis while plant cells do not. 
A) Plant cells lack centrioles while animal cells do not. 
B) Both plant and animal cells undergo cytokinesis. 
C) Mitosis allows growth and increase in size in both plants and animals. 
D) Animal cells form a cell plate during cytokinesis while plant cells do not.

Question 2

During which stage of the cell cycle is cell growth and replication of organelles most significant?

Accepted Answer

A) M phase 
B) G1 phase 
C) G2 phase 
D) S phase 
E) G0 phase 
A) M phase 
B) G1 phase 
C) G2 phase 
D) S phase 
E) G0 phase

Question 3

Which stage is most associated with a cell that is unable to divide again,such as a muscle or nerve cell?

Accepted Answer

A) M phase 
B) G1 phase 
C) G2 phase 
D) S phase 
E) G0 phase 
A) M phase 
B) G1 phase 
C) G2 phase 
D) S phase 
E) G0 phase

Question 4

What occurs in anaphase?

Accepted Answer

A) Centrioles move to opposite poles. 
B) Chromosomes move to opposite poles. 
C) Chromosomes line up along the equator of the dividing cell. 
D) The nuclear envelope disappears. 
E) The nuclear envelope is constructed. 
A) Centrioles move to opposite poles. 
B) Chromosomes move to opposite poles. 
C) Chromosomes line up along the equator of the dividing cell. 
D) The nuclear envelope disappears. 
E) The nuclear envelope is constructed.

Question 5

Which of the following is NOT true about cancer cells?

Accepted Answer

A) They never fully differentiate. 
B) They exhibit contact inhibition. 
C) They exhibit uncontrolled growth. 
D) They exhibit disorganized growth. 
E) They may undergo metastasis. 
A) They never fully differentiate. 
B) They exhibit contact inhibition. 
C) They exhibit uncontrolled growth. 
D) They exhibit disorganized growth. 
E) They may undergo metastasis.

Question 6

What is the result of a cell not meeting the criteria to pass the G1 checkpoint?

Accepted Answer

A) The cell cycle halts. 
B) The cell may enter the G0 stage. 
C) The cell may undergo apoptosis. 
D) All of the above. 
E) None of the above. 
A) The cell cycle halts. 
B) The cell may enter the G0 stage. 
C) The cell may undergo apoptosis. 
D) All of the above. 
E) None of the above.

Question 7

Which statement below best describes the difference between mitosis and cytokinesis?

Accepted Answer

A) mitosis is the portion of the cell cycle that divides the nuclear material while cytokinesis divides the cytoplasm 
B) mitosis is the portion of the cell cycle that divides the cytoplasm while cytokinesis divides the nuclear material 
C) mitosis is the portion of the cell cycle that uses a contractile ring to divide the nuclear material while cytokinesis uses the contractile ring to divide the cell membrane 
D) mitosis is the portion of the cell cycle that uses a cell plate to divide the cell membrane in plant cells while cytokinesis uses a contractile ring to divide the cell membrane in animal cells 
A) mitosis is the portion of the cell cycle that divides the nuclear material while cytokinesis divides the cytoplasm 
B) mitosis is the portion of the cell cycle that divides the cytoplasm while cytokinesis divides the nuclear material 
C) mitosis is the portion of the cell cycle that uses a contractile ring to divide the nuclear material while cytokinesis uses the contractile ring to divide the cell membrane 
D) mitosis is the portion of the cell cycle that uses a cell plate to divide the cell membrane in plant cells while cytokinesis uses a contractile ring to divide the cell membrane in animal cells

Question 8

Which of the following statements applies to mitosis but not to cytokinesis?

Accepted Answer

A) it contains a checkpoint that will evaluate the quality of the cell 
B) requires a large amount of ATP in order for the cellular mechanisms to function 
C) if it is disrupted it can lead to an abnormal cell 
D) it results in two daughter cells that are half the size of the original cell 
A) it contains a checkpoint that will evaluate the quality of the cell 
B) requires a large amount of ATP in order for the cellular mechanisms to function 
C) if it is disrupted it can lead to an abnormal cell 
D) it results in two daughter cells that are half the size of the original cell

Question 9

Apoptosis refers to cell death and

Accepted Answer

A) is always biologically detrimental to an organism. 
B) is merely the accumulation of genetic errors. 
C) is any failure of the genetic machinery to work properly. 
D) is a failure in the translation or transcription mechanism. 
E) can be programmed and is essential to normal development. 
A) is always biologically detrimental to an organism. 
B) is merely the accumulation of genetic errors. 
C) is any failure of the genetic machinery to work properly. 
D) is a failure in the translation or transcription mechanism. 
E) can be programmed and is essential to normal development.

Question 10

Which represents the correct sequence of stages in the cell cycle?

Accepted Answer

A) G1,G2,S,M 
B) G1,G2,M,S 
C) G1,M,G2,S 
D) G1,S,G2,M 
A) G1,G2,S,M 
B) G1,G2,M,S 
C) G1,M,G2,S 
D) G1,S,G2,M

Question 11

In some organisms,mitosis occurs without cytokinesis.This results in:

Accepted Answer

A) cell death 
B) a multinucleated cell 
C) cells arrested in the G0 phase 
D) cells with no nucleus 
E) uncontrolled cell division 
A) cell death 
B) a multinucleated cell 
C) cells arrested in the G0 phase 
D) cells with no nucleus 
E) uncontrolled cell division

Question 12

Viruses and chemical exposure can cause mutations in proto-oncogenes which can lead to cancer.

Accepted Answer

A) True 
 B)False

Question 13

Which is NOT correctly associated with cancer?

Accepted Answer

A) Angiogenesis forms new blood vessels and brings nutrients and oxygen to the tumor. 
B) The disorganized mass of cells is encapsulated and does not invade adjacent tissue. 
C) Metastasis establishes new tumors distant from the site of the primary tumor. 
D) Cells have receptors to adhere to basement membranes,then secrete proteinase enzymes to invade underlying tissues. 
A) Angiogenesis forms new blood vessels and brings nutrients and oxygen to the tumor. 
B) The disorganized mass of cells is encapsulated and does not invade adjacent tissue. 
C) Metastasis establishes new tumors distant from the site of the primary tumor. 
D) Cells have receptors to adhere to basement membranes,then secrete proteinase enzymes to invade underlying tissues.

Question 14

Which sequence of stages in mitosis is correct?

Accepted Answer

A) prophase,anaphase,prometaphase,metaphase,telophase 
B) prophase,telophase,anaphase,prometaphase,metaphase 
C) prophase,prometaphase,metaphase,anaphase,telophase 
D) telophase,anaphase,prophase,prometaphase,metaphase 
E) anaphase,prometaphase,metaphase,prophase,telophase 
A) prophase,anaphase,prometaphase,metaphase,telophase 
B) prophase,telophase,anaphase,prometaphase,metaphase 
C) prophase,prometaphase,metaphase,anaphase,telophase 
D) telophase,anaphase,prophase,prometaphase,metaphase 
E) anaphase,prometaphase,metaphase,prophase,telophase

Question 15

Although cancer may originate in many regions of the body,many patients die from cancerous growth in the lungs,lymph glands,or liver.This is most readily explained as

Accepted Answer

A) spreading of cancer by angiogenesis. 
B) metastasis occurring more commonly in organs that have a filter effect. 
C) proteinase enzymes making cancer particularly damaging to these tissues. 
D) growth anywhere but in these organs is called benign. 
E) due to these organs simply being more susceptible to cancer. 
A) spreading of cancer by angiogenesis. 
B) metastasis occurring more commonly in organs that have a filter effect. 
C) proteinase enzymes making cancer particularly damaging to these tissues. 
D) growth anywhere but in these organs is called benign. 
E) due to these organs simply being more susceptible to cancer.

Question 16

The event that signals the start of anaphase is

Accepted Answer

A) division of the centromeres to separate sister chromatids. 
B) migration of the centrioles to opposite poles of the nuclear space. 
C) a cleavage furrow starts to form. 
D) asters disappear. 
A) division of the centromeres to separate sister chromatids. 
B) migration of the centrioles to opposite poles of the nuclear space. 
C) a cleavage furrow starts to form. 
D) asters disappear.

Question 17

are ordinarily held in check by inhibitors.

Accepted Answer

A) True 
 B)False

Question 18

Virtually all specialized cells of multicellular organisms

Accepted Answer

A) develop through mutation from less specialized cells of the organism. 
B) contain more genetic material than less specialized cells of the same organism. 
C) contain less genetic material than less specialized cells of the same organism. 
D) have the same amount of DNA and the same number of chromosomes as all other cells of the organism and develop from the same basic stem cells. 
A) develop through mutation from less specialized cells of the organism. 
B) contain more genetic material than less specialized cells of the same organism. 
C) contain less genetic material than less specialized cells of the same organism. 
D) have the same amount of DNA and the same number of chromosomes as all other cells of the organism and develop from the same basic stem cells.

Question 19

What phase of mitosis is pictured?

Accepted Answer

A) prophase 
B) prometaphase 
C) metaphase 
D) anaphase 
E) telophase 
A) prophase 
B) prometaphase 
C) metaphase 
D) anaphase 
E) telophase

Question 20

Which statement is NOT true about eukaryotic chromosomes?

Accepted Answer

A) There is only one chromosome of each type in each body cell. 
B) Chromosomes contain both DNA and associated histones. 
C) Chromosomes condense from chromatin at the start of mitosis. 
D) Chromosomes disperse back into chromatin at the end of mitosis. 
E) Chromosomes are not located within the nuclear envelope during mitosis. 
A) There is only one chromosome of each type in each body cell. 
B) Chromosomes contain both DNA and associated histones. 
C) Chromosomes condense from chromatin at the start of mitosis. 
D) Chromosomes disperse back into chromatin at the end of mitosis. 
E) Chromosomes are not located within the nuclear envelope during mitosis.

Exam 9: The Cell Cycle and Cellular Reproduction

Which of the following is NOT true concerning mitosis?

During which stage of the cell cycle is cell growth and replication of organelles most significant?

Which stage is most associated with a cell that is unable to divide again,such as a muscle or nerve cell?

What occurs in anaphase?

Which of the following is NOT true about cancer cells?

What is the result of a cell not meeting the criteria to pass the G1 checkpoint?

Which statement below best describes the difference between mitosis and cytokinesis?

Which of the following statements applies to mitosis but not to cytokinesis?

Apoptosis refers to cell death and

Which represents the correct sequence of stages in the cell cycle?

In some organisms,mitosis occurs without cytokinesis.This results in:

Viruses and chemical exposure can cause mutations in proto-oncogenes which can lead to cancer.

Which is NOT correctly associated with cancer?

Which sequence of stages in mitosis is correct?

Although cancer may originate in many regions of the body,many patients die from cancerous growth in the lungs,lymph glands,or liver.This is most readily explained as

The event that signals the start of anaphase is

are ordinarily held in check by inhibitors.

Virtually all specialized cells of multicellular organisms

What phase of mitosis is pictured?

Which statement is NOT true about eukaryotic chromosomes?

A View of Life

Basic Chemistry

The Chemistry of Organic Molecules

Cell Structure and Function

Membrane Structure and Function

Metabolism: Energy and Enzymes

Photosynthesis

Cellular Respiration

Meiosis and Sexual Reproduction

Mendelian Patterns of Inheritance

Molecular Biology of the Gene

Regulation of Gene Expression

Biotechnology and Genomics

Darwin and Evolution

How Populations Evolve

Speciation and Macroevolution

Origin and History of Life

Taxonomy,systematics,and Phylogeny

Viruses,bacteria,and Archaea

Protist Evolution and Diversity

Fungi Evolution and Diversity

Plant Evolution and Diversity

Flowering Plants: Structure and Organization

Flowering Plants: Nutrition and Transport

Flowering Plants: Control of Growth Responses

Flowering Plants: Reproduction

Invertebrate Evolution

Vertebrate Evolution

Human Evolution

Animal Organization and Homeostasis

Circulation and Cardiovascular Systems

The Lymphatic and Immune Systems

Digestive Systems and Nutrition

Respiratory Systems

Body Fluid Regulation and Excretory Systems

Neurons and Nervous Systems

Sense Organs

Locomotion and Support Systems

Hormones and Endocrine Systems

Reproductive Systems

Animal Development

Behavioral Ecology

Population Ecology

Community and Ecosystem Ecology

Major Ecosystems of the Biosphere

Conservation of Biodiversity

Filters

What is the result of a cell not meeting the criteria to pass the G₁ checkpoint?