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1

1 kilogram (kg) of solid X at 10°C and 1 kg of solid Y at 10°C each absorb 5 joules of heat energy. The final temperatures of X and Y are 15°C and 20°C, respectively. Compared to X, Y must have a lower

specific heat

2

A drop of dilute ammonium hydroxide (NH4OH) is placed on one side of a slide containing a large number of swimming paramecium. Under this condition, which of these behaviors of the paramecia will be observed

They will eventually all swim away from the ammonium hydroxide

3

A person blows his breath into a straw that is placed in limewater. The limewater becomes cloudy because the person's breath contains

carbon dioxide

4

normal adult BP =

120/80 mm Hg

5

unknown gas is more dense than air, does not support combustion, and turns a limewater solution cloudy. This gas is most probably

carbon dioxide

6

If a red light is passed through a dilute solution of chlorophyll solution, the spectrophotometer will detect what amount of transmittance of this light?

50-75%

7

If the medulla of the brain in a human was damaged, which of these conditions would most likely result?

Difficulty in breathing

8

To sterilize a metal probe in the office, a dentist could use a steam sterilizer. If unavailable, the next most effective method to sterilize the instrument would be

boiling it in water for 15 minutes

9

Iodized salt is used to prevent a human condition known as

iodine deff.. goiter

10

The organ that filters metabolic waste from the blood is

kidney

11

Which of these equations best illustrates a synthesis reaction?
2Na + Cl2 -> 2NaCl
NaOH + HCl -> NaCl + H2O
2H2O2 -> 2H2O + O2
CH4 + 2O2 -> CO2 + 2H2O

2Na + Cl2 -> 2NaCl

12

Which of these quantities is most closely associated with an object's inertia?

mass

13

Which part of the human central nervous system controls voluntary movements

cerebrum

14

While working in the chemistry laboratory, a student spills dilute hydrochloric acid on her hand. What is the first action this student should take?

Flush her hand with large quantities of water

15

Within a living cell, the oxygen (O2) from a mixture of O2 and carbon dioxide (CO2) is used up. This creates a concentration gradient across the cell membrane, drawing O2 across the membrane from the outside in, a process known as

diffusion

16

A lens that focuses distant light to a single point is known as a

converging lens

17

A material that settles out of a reaction is termed a(n)

emulsion

18

Cicero and Wozniak probably decided to restrict their study to male offspring of alcoholic male rats because they wanted to

compare results with prior findings from human studies

19

During exercise, a person's respiratory rate increases due to

an increase in CO2 concentration in the blood

20

If a person is fasting for 24 hours and ingests no carbohydrates, the liver will provide for the body's need by

converting glycogen into glucose.

21

The meiotic division of cells leads to the production of cells that

contain half the usual number of chromosomes.

22

Unicellular organisms that have a nucleus and can swim with the aid of cilia are examples of

protozoan

23

Which of these arrangements of atoms is found in all alcohols

C-OH

24

Which of these changes occurs in the kidneys when a person becomes dehydrated?

The filtration rate of water remains constant and the reabsorption of water increases

25

Which of these factors is a variable in Cicero and Wozniak's research?

Liquid diet of 6% alcohol

26

Which of these findings suggests a serious illness from a urinalysis?

Presence of glucose and protein.

27

Which of these processes is illustrated by the spreading out of ammonia vapor in a closed room?

diffusion

28

Which of these structures of the male reproductive system carries sperm cells from the testes to the lower part of the abdomen?

vas deferens

29

Which of these units is associated with magnitude, but not direction?

time

30

In ecological succession, the first living thing to colonize a hitherto barren area is called a

pioneer organism

31

Heat energy is absorbed in which of these phase changes?

Br2 (l) -> Br2(g)

32

The atoms of an element with seven valence electrons are most probably classified as

nonmetal

33

The bending of a wave around an obstacle is known as

diffraction

34

The process of nuclear cell division in the cell reproduction of plants differs from mammals. A major difference is that

cell plates are synthesized.

35

Which of these substances contains a nonpolar covalent bond?

O2

36

A recently discovered species has these characteristics: amniotic eggs, a four-chambered heart, and lightweight, honeycombed bones. Which of these ADDITIONAL characteristics is likely to be present?

feathers for flying

37

An example of the most complex level of organization in a frog is the

respiratory system

38

Anaerobic respiration occurs in muscle tissue when it cannot get sufficient oxygen to function aerobically. Which of these conditions is most likely to directly result from this?

cramps

39

Compounds with the same type and number of atoms and the same chemical bonds but different spatial arrangements of these bonds and atoms are called

structural isomers

40

Ductless glands in the human body secrete

hormones

41

If the night temperature drops 50 degrees, the roadrunner's internal energy-conservation permits a lowering of body temperature to

94 f

42

The atomic number of flourine is 9. How many electrons are contained in the second principal energy level of a flourine atom in the ground state?

7

43

The physics principle that is primarily used in developing a rollercoaster ride is

centripetal force

44

The vertical columns on the periodic chart are known as

groups

45

The weight of an adult human in newtons (N) is closest to

500N

46

Which of these structures contains valves to prevent blood from flowing in the wrong direction?

veins

47

The inherited factors that are transmitted in an organism from generation to generation are called its

genotype

48

Which of these pairs of units measures the same quantity?

calorie and joule

49

Which of these quantities is a vector quantity?

energy

50

According to the Ideal Gas Equation (PV = nRT), if the temperature and amount of gas are kept constant, what will be the effect of an increase in pressure on the volume of a gas?

As the pressure increases, the volume decreases

51

As part of the human immune response, which of these cells are responsible for producing antibodies?

lympocytes

52

The region of the brain most concerned with coordinating somatic motor function is the

cerebellum

53

The second law of thermodynamics states that with every spontaneous process, the entropy of the universe

increases

54

Which human body system does meiosis occur in?

reproductive

55

Which of these hydrocarbons is a member of the benzene family?

toluene

56

Which of these single instruments may be used to measure the current flowing through a circuit?

ammeter

57

Which of these temperatures is known as Absolute Zero?

0 K

58

A quantity that has both magnitude and direction is called a(n)

vector

59

In corn plants, the gene that codes for the presence of chlorophyll is sometimes missing. The resulting seedlings are albino and will not survive. This lethal gene appears in corn populations because

the parent plants that produced the seeds carried the recessive gene for the albino trait.

60

The watt is a unit of

volt is

power

potential

61

The full set of genes in an individual is known as

human genome

62

Which of these germ layers gives rise to the skin?

ectoderm

63

Which of these processes occurs at a neuromuscular junction?

impluse transmission

64

Which of these structures produces sperm cells in human males?

testes

65

A lab technician has the choice of four different enzymes to use in an experiment that will run at 25°C. The optimal temperatures of enzymes using the Kelvin scale are: Enzyme A: 273 K, Enzyme B: 298 K, Enzyme C: 310 K, Enzyme D: 325 K. Which enzyme would be the best to use in this experiment?

enzyme B`

66

A substance composed of similar atoms (number of protons is the same for all) that can not be broken down chemically is a(n)

element

67

All the glucose filtered from the blood in the glomerulus into the Bowman's capsule of the kidney nephron is returned to the tissue fluid while passing along the proximal tubule. This rapid return is effected by the process of

active transport

68

If blue light emits electrons from a photosensitive surface, then electrons must also be emitted by

ultraviolet

69

In the reaction of iron with water shown below, what coefficient must be placed before the iron (Fe) to balance the reaction? Fe + 4H2O ° Fe3O4 + 4H2

3

70

Muscles are attached to bone by which of these structures?

tendon

71

When blood is filtered in the kidney and urine is produced, red blood cells and plasma proteins do not pass through the blood capillaries. This occurs because

large molecules such as blood and plasma proteins do not fit through the permeable membrane, so they cannot enter the tubules in the kidney.

72

Which of these arrangements of atoms is found in all alcohols?

C-OH