Science Test 2

Front 1

114 neutrons and 77 electrons

Back 1

Which of the following indicates the number of neutrons and electrons for the neutral isotope of iridium (Ir) that has a mass number of 191?

Front 2

Hydrogen (H)

Back 2

When examining electronegativity values which of the following atoms will form the least polar bond with hydrogen?

Front 3

Potassium (K)

Back 3

Which of the following elements is the best electrical conductor?

Front 4

More than twice as many hydrogen atoms as carbon atoms

Back 4

A large saturated hydrocarbon will contain?

Front 5

Cells; molecule

Back 5

___ are at a higher taxonomic level of organization than ___?

Front 6

Recording qualitative observations

Back 6

Which of the following is considered least useful and conducting quantitative scientific research?

Front 7

Lysosome

Back 7

Which of the following is needed for cellular waste recycling?

Front 8

Compare the eggs from 10 soy cultures vs 10 whole wheat cultures.

Back 8

A researcher wishes to test the hypothesis that so is a superior diet compared to whole wheat for the reproductive purpose of a certain type of beetle. Which of the following describes how the researchers should best test this hypothesis?

Front 9

Digestive

Back 9

Which of the following systems includes organs between the mouth and the anus?

Front 10

Shows what genotypes are possible in the offspring.

Back 10

Which of the following describes how a Punnett Square can help predict the genotype of the offspring if the alleles of both parents are known?

Front 11

A neutral substance

Back 11

A substance with a pH of 7.0 when dissolved in water is?

Front 12

Carbon dioxide

Back 12

Which of the following by products of cellular respiration is used by autotrophs in the production of glucose?

Front 13

100%

Back 13

A certain disease carried on the allele (a) which is recessive the normal condition (A). If a normal (AA) male mates with a female who has the disease (aa), which of the following is the percentage of offspring that are carriers of this disease?

Front 14

Endocrine

Back 14

The pancreas is a component of which of the following system?

Front 15

Hydrogen

Back 15

Which of the following types of bonds is primarily responsible for base pairing in complementary strands of DNA?

Front 16

DNA polymerase proofreading

Back 16

A cell uses which of the following as a first-line defense against meet Asians during DNA replication?

Front 17

duodenum

Back 17

After passing through the stomach food continues into which of the following structures?

Front 18

9 Joules

Back 18

Suppose a 2 kilogram mass is traveling at 3 metres / 2nd. Which of the following is the object's kinetic energy? (KE)

Front 19

Liquid 1 has a higher density than liquid 2

Back 19

Three different liquids with different densities were placed together in a container as shown. The liquids when stirred and allowed to resettle return to the same arrangement.

Front 20

Allele

Back 20

Which of the following is the term given to multiple forms of a gene that are produced by mutation?

Front 21

Centrosomes

Back 21

During mitosis and cell division spindle fibers are associated with which of the following organelles?

Front 22

Colon

Back 22

In which of the following parts of the gastrointestinal tract does the absorption of water primarily occur?

Front 23

Gastrulation

Back 23

During which of the following stages of development do individual tissue layers begin to form?

Front 24

4

Back 24

Which of the following represents the number of different cells formed upon completion of meiosis II?

Front 25

Liberates OH- in solution

Back 25

Which of the following is a property of bases?

Front 26

G1

Back 26

During which of the following stages of interphase is mRNA synthesized?

Front 27

Chlorine ions

Back 27

A harmful example of a catalytic reaction involves the breakdown of ozone by the use of ___?

Front 28

Proteins

Back 28

Phenotypes are seen due to the production of ___ from the genotypic code found in the cell nucleus?

Front 29

Active

Back 29

Receiving a vaccination against a particular disease results in which of the following types of immunity?

Front 30

Superior vena cava

Back 30

The veins of the upper part of the body are responsible for transporting blood to which of the following areas of the heart?

Front 31

Lymphatic

Back 31

The spleen and thoracic are parts of which of the following systems?

Front 32

Proteins

Back 32

Nucleotides are to DNA as amino acids are to ___?

Front 33

Species

Back 33

Which of the following taxonomic ranks is the most specific?

Front 34

Weaker; higher

Back 34

For a given substance, the gas phase (compared to the liquid phase) is considered to have a ___ intermolecular attractions and to exist at ___ temperatures.

Front 35

Diaphragm

Back 35

Which of the following pulls air into the body during inspiration?

Front 36

C8H14

Back 36

Which of the following is the chemical formula for octyne?

Front 37

The population is controlled by density dependent factors

Back 37

A culture for the flour Beetle tribolium confusum was started with 10 males and 10 females in a 20 millimeter flask. Over a period of time, the beetle population increased to 940 insects, after which, the number of remaining constant for several days, followed by an increase in the death rate. Which of the following is a reasonable hypothesis related to this experiment?

Front 38

They block the active sites of the substrate, causing greatly reduced activity

Back 38

Which of the following describes how Inhibitors affect the reaction rate of enzymes?

Front 39

CH4 +2O2 -> CO2 + 2H2O

Back 39

Which of the following correctly balances the combustion reaction above? CH4 + O2 -> CO2 + H2O

Front 40

Covalent; 2:1

Back 40

Waters ___ bonding results in a ___ ratio of hydrogen to oxygen. which of the following correctly completes the sentence above?

Front 41

Translation

Back 41

During which of the following processes does RNA relay information to the ribosomes?

Front 42

Bladder

Back 42

In which of the following is urine stored?

Front 43

Control group

Back 43

In a medication study, population A is given a medication, and population B is given a placebo. Which of the following describes population B?

Front 44

The kinetic energy of the second throw is 4 times that of the first throw.

Back 44

The boy is throwing a baseball out of Target. The baseball travels at 15 miles per hour during the first throw and 30 miles per hour during his second throw. Which of the following statements correctly compares the energy of the baseball in these two situations?

Front 45

Formulating a hypothesis

Back 45

A researcher predicts that nursing students who have taken extensive science courses will score higher on their National licensing exams, when compared to nursing students who have only taken required science courses. This prediction corresponds with which of the following steps in scientific method?

Front 46

Liver

Back 46

Which of the following organs produces bile that begins the breakdown of fats?