Ch 7-9

Front 1

A benign tumor differs from a malignanttumor in that a benign tumor

Back 1

does NOT metastasize

Front 2

Which of the following occurs duringprophase?

Back 2

the mitotic spindle begins to form

Front 3

A duplicated chromosome consists of two

Back 3

chromatids

Front 4

Chromatin consists of

Back 4

DNA and protein

Front 5

The phase of mitosis during which the nuclearenvelope fragments and the nucleoli disappearis called

Back 5

prophase

Front 6

Which of the following will help preventcancer and increase survival?

Back 6

Seek early detection of tumors

Front 7

Mature human nerve cells and muscle cells

Back 7

are permanently in a state of nondivision

Front 8

Which of the following is a feature of plant celldivision that distinguishes it from animal celldivision?

Back 8

A cell plate forms

Front 9

The chromosomes of eukaryotic cells are foundin the

Back 9

nucleus

Front 10

Which one of the following is not a function ofmitosis? Mitosis helps organisms

Back 10

All are correct

Front 11

Which of the following is NOT a stage ofmitosis?

Back 11

interphase

Front 12

Skin cancer is a type of

Back 12

carcinoma

Front 13

The cell cycle results in the production of

Back 13

2 diploid cells, each with sameamount of genetic material info.

Front 14

A ______ is an example of an organism thatcan reproduce asexually.

Back 14

Komodo dragon

Front 15

During which stage of the cell cycle doescytokinesis usually occur?

Back 15

telophase

Front 16

Which of these events occurs during anaphase?

Back 16

Sister chromatids separate

Front 17

During which phase of mitosis does thenuclear envelope re-form and the nucleolireappear?

Back 17

telophase

Front 18

If the S phase was eliminated from the cellcycle,the daughter cells would

Back 18

have half the genetic material found in the parental cell

Front 19

DNA is found in structures called

Back 19

chromosomes

Front 20

Which one of the following does NOT occurduring mitotic anaphase?

Back 20

the chromatid DNA replicates

Front 21

Which of the following is a stage of mitosis?

Back 21

telophase

Front 22

Which of the following help maintain thestructure of chromosomes and control theactivity of genes?

Back 22

proteins

Front 23

During metaphase

Back 23

chromosomes line up on the midline of the cell

Front 24

The creation of offspring carrying geneticinformation from just a single parent is called

Back 24

asexual reproduction

Front 25

Which of the following occurs duringinterphase?

Back 25

cell growth and duplication of the chromosomes

Front 26

What are nucleosomes made of?

Back 26

DNA wrapped around histone proteins

Front 27

The process by which the cytoplasm of aeukaryotic cell divides to produce two cells iscalled

Back 27

cytokinesis

Front 28

The correct sequence of the stages of the cellcycle is

Back 28

interphase, prophase, metaphase,anaphase, telophase

Front 29

Sister chromatids are joined at the

Back 29

centromere

Front 30

Which of the following must occur for a plantor animal to grow and develop normally?

Back 30

it must be able to control the timing andrate of cell division in different parts of its body

Front 31

Humans use the calories they obtain from______ as their source of energy.

Back 31

food

Front 32

What compound directly provides energy forcellular work?

Back 32

ATP

Front 33

Anaerobic process requires

Back 33

oxygen

Front 34

Respiration describes the exchange of gasesbetween your blood and the outside air.Cellular respiration ______.

Back 34

produces ATP

Front 35

Which of these equations describes aerobiccellular respiration?

Back 35

glucose+oxygen ----> 􏰀 carbon dioxide+water + energy

Front 36

During redox reactions, ______.

Back 36

electrons are lost from one substance and added to another substance

Front 37

During cellular respiration, electrons movethrough a series of electron acceptor molecules.Which of thefollowing isatruestatementabout this process?

Back 37

Oxygen is eventually reduced by the electrons to form water.

Front 38

The first electron acceptor of cellularrespiration is ______.

Back 38

NAD+

Front 39

Which of the following is the correct sequenceof stages in cellular respiration?

Back 39

glycolysis, citric acid cycle, electrontransport

Front 40

Which part of cellular respiration produces themost NADH?

Back 40

citric acid cycle

Front 41

In cellular respiration, most ATP is produceddirectly as a result of ______.

Back 41

the movement of hydrogen ions across the inner mitochondrial membrane

Front 42

Anaerobic respiration produces a maximum of______ ATP per glucose.

Back 42

2

Front 43

Which of the following metabolic pathways iscommon to both aerobic and anaerobicprocesses of sugar breakdown?

Back 43

glycolysis

Front 44

In fermentation, ______ is ______.

Back 44

NADH ... oxidized

Front 45

Respiration ______, and cellular respiration______.

Back 45

is gas exchange ... produces ATP

Front 46

The term anaerobic means ______

Back 46

without O2

Front 47

Which of the following is a result of glycolysis?

Back 47

conversion of glucose to pyruvic acid

Front 48

What must pyruvic acid be converted to beforeit can enter the Krebs cycle?

Back 48

acetyl CoA

Front 49

Which one of the following is the correctsequence of stages in cellular respiration?

Back 49

glycolysis, Krebs cycle, electron transportchain

Front 50

The final electron acceptor of aerobicrespiration is ______.

Back 50

oxygen

Front 51

During cellular respiration, the energy inglucose ______.

Back 51

is carried by electrons

Front 52

Respiration __________, and cellularrespiration __________.

Back 52

is gas exchange ... produces ATP

Front 53

The overall equation for the cellularrespiration of glucose is

Back 53

C6H12O6 + 6O2 --> 􏰀 6CO2 + 6H2O +energy

Front 54

During cellular respiration, the energy inglucose

Back 54

is carried by electrons.

Front 55

Oxidation is the __________, and reduction isthe __________.

Back 55

loss of electrons ... gain of electrons

Front 56

During which of the following phases ofcellular respiration does substrate-levelphosphorylation take place?

Back 56

glycolysis and the citric acid cycle

Front 57

Which one of the following metabolicpathways is common in aerobic and anaerobicorganisms?

Back 57

glycolysis

Front 58

During chemiosmosis

Back 58

ATP is synthesized when H+ ions movethrough a protein port provided by ATPsynthase.

Front 59

To obtain energy from starch and glycogen, thebody must begin by

Back 59

hydrolyzing both starch and glycogen toglucose.

Front 60

If you consume one gram of each of thefollowing, which will yield the most ATP?

Back 60

fat

Front 61

Homologous chromosomes ______.

Back 61

carry the same genes

Front 62

Which of the following is the best descriptionof the events of anaphase I?

Back 62

Homologous chromosomes randomlyseparate and migrate to opposite poles.

Front 63

Which of the following is a characteristic seenin prophase I that does not occur in prophaseII?

Back 63

Crossing over occurs.

Front 64

One difference between mitosis and meiosis is______.

Back 64

mitosis produces cells geneticallyidentical to the parent cell, but meiosisdoes not

Front 65

Why is crossing over not possible in meiosis II?

Back 65

Because homologous chromosomes are no longer in the same cell.

Front 66

During metaphase I, ______.

Back 66

homologous chromosomes line up in the middle of the cell

Front 67

Crossing over during prophase I results in______.

Back 67

genetic recombination

Front 68

Which scientist iscredited with proposing in1887 that an egg and a sperm fuse to form azygote?

Back 68

van Beneden

Front 69

Sexual intercourse in humans ______.

Back 69

allows a haploid sperm cell to fertilize ahaploid egg cell

Front 70

How much genetic material is present in a cellduring prophase I compared to a cell that hascompleted meiosis II?

Back 70

four times as much

Front 71

Chromosomes that do not determine the sex ofan individual are called ______.

Back 71

autosomes

Front 72

How many possible gametes are there if a cellhas 4 chromosome pairs?

Back 72

16

Front 73

In humans, gametes are _____ and somaticcells are _______ .

Back 73

haploid; diploid

Front 74

Many protist are _________ for most of theirlives.

Back 74

haploid

Front 75

Genetic variation is accomplished by all butone of the following. Which is it?

Back 75

the events of meiosis II

Front 76

In humans, germ-line cells are located in

Back 76

the ovaries and testes.

Front 77

Anaphase II is essentially the same as mitoticanaphase except that in anaphase II ______ andin mitotic anaphase ______.

Back 77

the cells are haploid and sisterchromatids separate ... the cells arediploid and sister chromatids separate

Front 78

Upon completion of telophase I andcytokinesis, there is(are) ______ cell(s).

Back 78

two haploid

Front 79

The process that serves to decrease cellularchromosome number by half is

Back 79

meiosis

Front 80

Karyotyping

Back 80

can reveal alterations in chromosome number.

Front 81

What sex chromosomes belong to a normalhuman female?

Back 81

XX

Front 82

A karyotype (a chromosome display) would beunable to determine ______.

Back 82

eye color

Front 83

A ______ describes a site of crossing over.

Back 83

chiasma

Front 84

An organism's diploid number is 64.Itshaploid number would be

Back 84

32

Front 85

What sex chromosomes belong to a normalhuman male?

Back 85

XY

Front 86

How many autosomes do humans have?

Back 86

22

Front 87

For a species with four pairsof chromosomes,________ gametic combinations are possible.

Back 87

16

Front 88

Which of the following does NOT enhancegenetic diversity?

Back 88

mitosis of somatic cells

Front 89

Genetically, human ______.

Back 89

children are equally related to both parents

Front 90

A fter meiosis I _____ cells are formed and aftermeisis II , _____ cells results.

Back 90

2; 4