Project #78530 - bio

1.

Evolution is something that occurs in

A)

atoms.

B)

molecules.

C)

individual organisms.

D)

populations.

E)

tissues.

 

 

2.

The largest unit of the following is the

A)

atom.

B)

cell.

C)

ecosystem.

D)

molecule.

E)

population.

 

 

3.

Which element stimulates the development of taste buds?

A)

calcium

B)

copper

C)

iron

D)

magnesium

E)

zinc

 

 

4.

Osmosis is a process most similar to

A)

active transport.

B)

diffusion.

C)

endocytosis.

D)

exocytosis.

E)

respiration.

 

 

5.

After placement, the sponge is effective as a contraceptive for ________ hours.

A)

24

B)

48

C)

60

D)

72

E)

96

 

 

6.

The organs affected most by cystic fibrosis are the

A)

brain and heart.

B)

heart and kidney.

C)

lung and pancreas.

D)

pancreas and small intestine.

E)

small intestine and stomach.

 

 

7.

The internal sphincter is a band of

A)

arteries and veins.

B)

capillaries.

C)

cardiac muscle.

D)

skeletal muscle.

E)

smooth muscle.

 

 

8.

The liver converts most ammonia to

A)

amino acids.

B)

fatty acids.

C)

glucose.

D)

urea.

E)

uric acid.

 

 

9.

True or False? When blood clots, fibrin is converted into fibrinogen. 

A)

True

B)

False

 

 

10.

New species can arise through a process called

A)

evolution.

B)

geocentrics.

C)

homeostasis.

D)

metabolism.

E)

thermodynamics.

 

 

11.

The function of the renal artery is to

A)

control blood pressure.

B)

filter wastes.

C)

reabsorb fluid.

D)

transport blood away from the kidney.

E)

transport blood to the kidney.

 

 

12.

A neutron is best described as a(n)

A)

atom.

B)

form of energy.

C)

part of an electron cloud.

D)

subatomic particle.

E)

whole molecule.

 

 

13.

By phagocytosis macrophages

A)

block antigens.

B)

engulf bacteria.

C)

form precipitates.

D)

produce antibodies.

E)

stimulate agglutination.

 

 

14.

True or False? Osteoclasts build bone. 

A)

True

B)

False

 

 

15.

Hydrolysis is the chemical ________ of molecules.

A)

deficiency

B)

digestion

C)

oxidation

D)

reduction

E)

synthesis

 

 

16.

After the trachea, inhaled air enters the ________ next.

A)

alveolus

B)

bronchiole

C)

bronchus

D)

pharynx

E)

trachea

 

 

17.

Each of the following is a mechanism by which antibodies destroy foreign organisms except

A)

agglutination.

B)

complement action.

C)

neutralization.

D)

pinocytosis.

E)

precipitation.

 

 

18.

What is the clear, gelatinous material in the posterior chamber of the eye?

A)

aqueous humor

B)

cornea

C)

lens

D)

sclera

E)

vitreous humor

 

 

19.

The breathing center is located in the

A)

cerebellum.

B)

cerebrum.

C)

hypothalamus.

D)

medulla.

E)

thalamus.

 

 

20.

True or False? The inferior vena cava returns blood to the right atrium. 

A)

True

B)

False

 

 

21.

True or False? As emphysema develops, the surface area in the alveoli increases. 

A)

True

B)

False

 

 

22.

Phagocytosis is a type of

A)

active transport.

B)

endocytosis.

C)

exocytosis.

D)

simple diffusion.

E)

synthesis mechanism.

 

 

23.

The somatic cells of an organism normally have 64 chromosomes per cell. The haploid chromosome number for this organism is

A)

16.

B)

24.

C)

32.

D)

48.

E)

64.

 

 

24.

Multiple sclerosis develops by the destruction of the

A)

myelin sheath.

B)

neurotransmitter.

C)

receptors.

D)

synapses.

E)

ventricles.

 

 

25.

The rings in the wall of the trachea are

A)

bone.

B)

cartilage.

C)

ligaments.

D)

nerves.

E)

tendons.

 

 

26.

Hemoglobin contains

A)

calcium.

B)

copper.

C)

iron.

D)

potassium.

E)

zinc.

 

 

27.

Fibrinogen is a blood protein that functions for

A)

blood clotting.

B)

energy.

C)

immunity.

D)

transporting gases.

E)

transporting ions.

 

 

28.

Lysozyme is a

A)

cell wall component.

B)

layer of the skin.

C)

lining of the urinary tract.

D)

substance that kills bacteria.

E)

vasodilator substance.

 

 

29.

Pepsin is an enzyme that works on

A)

carbohydrates.

B)

lipids.

C)

proteins.

D)

steroids.

E)

water.

 

 

30.

Emphysema mainly affects the ________ of the lungs.

A)

alveoli

B)

bronchioles

C)

mucosa

D)

trachea

E)

villi

 

 

31.

Allergens cause the production of immunoglobulin

A)

IgA.

B)

IgB.

C)

IgM.

D)

IgD.

E)

IgE.

 

 

32.

The epiglottis covers the opening of the

A)

bronchus.

B)

larynx.

C)

nose.

D)

pharynx.

E)

trachea.

 

 

33.

Valves are found in the

A)

arteries and arterioles.

B)

arterioles and capillaries.

C)

heart and veins.

D)

heart and capillaries.

E)

veins and arterioles.

 

 

34.

A synapse involves each of the following except the

A)

glial cell covering.

B)

postsynaptic membrane.

C)

presynaptic membrane.

D)

synaptic cleft.

E)

terminal bouton.

 

 

35.

The Earth's original atmosphere contained each of the following except

A)

ammonia.

B)

hydrogen.

C)

methane.

D)

molecular oxygen.

E)

water vapor.

 

 

36.

The most common isotope of hydrogen has

A)

1 neutron and 1 electron.

B)

1 proton and 1 electron.

C)

1 proton, 1 neutron, and 1 electron.

D)

1 proton, 2 neutrons, and 1 electron.

E)

2 protons and 2 electrons.

 

 

37.

Because the earth's ecological systems are closed, all materials necessary for life must be:

A)

synthetic

B)

organic

C)

recycled

D)

decomposed

E)

fermented

 

 

38.

Smooth muscle is found in each of the following organs except the

A)

blood vessel.

B)

heart.

C)

intestines.

D)

stomach.

E)

uterus.

 

 

39.

A stroke is a _________ accident.

A)

vascular

B)

cerebrovascular

C)

dendritic

D)

glial

E)

hypoglycemic

 

 

40.

In the hematocrit, the formed elements make up about ________ percent of the blood volume.

A)

10

B)

25

C)

45

D)

65

E)

85

 

 

41.

Complement is a system of

A)

carbohydrates.

B)

ions.

C)

lipids.

D)

nucleic acids.

E)

proteins.

 

 

42.

Endocrine glands produce substances called

A)

blood plasma.

B)

epithelia.

C)

hormones.

D)

ions.

E)

neurotransmitters.

 

 

43.

The hormone CCK

A)

blocks the entrance of chyme into the small intestine.

B)

increases metabolism.

C)

inhibits peristalsis.

D)

lowers blood sugar.

E)

stimulates the gallbladder to contract.

 

 

44.

Select the incorrect association.

A)

chemoreceptor/food

B)

mechanoreceptor/touch

C)

nociceptor/pressure

D)

photoreceptor/light

E)

thermoreceptor/heat

 

 

45.

Carrier proteins are involved in a process called

A)

active diffusion.

B)

facilitated diffusion.

C)

phagocytosis.

D)

pinocytosis.

E)

simple diffusion.

 

 

46.

The term "angina" refers to the ________ of the heart attack.

A)

blockage

B)

oxygen deficiency

C)

location

D)

pain

E)

relief

 

 

47.

According to the theory of chemical evolution,

A)

eukaryotes formed prokaryotes.

B)

inorganic molecules formed organic molecules.

C)

plants formed oxygen.

D)

prokaryotes formed eukaryotes.

E)

water was present in all cells.

 

 

48.

Each sperm normally contains ________ chromosomes.

A)

22, single-stranded

B)

22, double-stranded

C)

23, single-stranded

D)

23, double-stranded

E)

46, single-stranded

 

 

49.

Grazer food chains begin with

A)

algae and plants.

B)

carnivores.

C)

decomposers.

D)

grazers.

E)

omnivores.

 

 

50.

Oxygen and carbon dioxide are transported through the alveolar wall by

A)

active transport.

B)

diffusion.

C)

endocytosis.

D)

exocytosis.

E)

pulmonary transport.

 

 

51.

Most of the mass of an atom is in the

A)

electrons.

B)

electron cloud.

C)

ionic bond.

D)

negative charges.

E)

nucleus.

 

 

52.

Select the incorrect association.

A)

hyperopia/farsightedness

B)

myopia/nearsightedness

C)

retina/cones

D)

retina/rods

E)

rods/color vision

 

 

53.

The ________ is the muscular layer of the heart.

 

 

54.

Lacteals function for the absorption of

A)

amino acids.

B)

fats.

C)

minerals.

D)

vitamins.

E)

water.

 

 

55.

The fluid mosaic model refers to the structure of the

A)

cell wall.

B)

cilium.

C)

nucleus.

D)

plasma membrane.

E)

smooth ER.

 

 

56.

In an experiment, the experimental group is the one that is

A)

composed of ten to twenty organisms.

B)

manipulated in some way.

C)

not studied in the experiment.

D)

not tested in the experiment.

E)

treated similarly to the control group.

 

 

57.

A neuron starts to fire an impulse by the influx of _________ ions.

A)

calcium

B)

chloride

C)

iron

D)

potassium

E)

sodium

 

 

58.

The SA node is located in the wall of the

A)

aorta.

B)

left atrium.

C)

left ventricle.

D)

right atrium.

E)

right ventricle.

 

 

59.

For epithelia, the term "simple" means

A)

flat cells.

B)

many layers of cells.

C)

one layer of cells.

D)

one nucleus per cell.

E)

sweat glands in the layer.

 

 

60.

Dietary fiber is a nondigestible

A)

fat.

B)

monosaccharide.

C)

nucleic acid.

D)

polysaccharide.

E)

protein.

 

 

61.

The urethra passes through the ________ gland.

A)

Cowper's

B)

epididymis

C)

prostate

D)

seminal vesicle

E)

testis

 

 

62.

Saturated fatty acids contain more covalently bonded ________ atoms.

A)

carbon

B)

hydrogen

C)

nitrogen

D)

oxygen

E)

sulfur

 

 

63.

Gonorrhea is caused by a(n) _________ infection.

A)

algal

B)

bacterial

C)

plant

D)

protozoan

E)

viral

 

 

64.

The largest part of the brain is the

A)

cerebellum.

B)

cerebrum.

C)

hypothalamus.

D)

medulla.

E)

thalamus.

 

 

65.

The ANS is part of the

A)

CNS and controls involuntary functions.

B)

CNS and controls voluntary functions.

C)

PNS and controls involuntary functions.

D)

PNS and controls voluntary functions.

E)

sensors that monitor stimuli.

 

 

66.

Ovulation usually occurs ________ days before the onset of the next menstruation.

A)

5

B)

10

C)

14

D)

21

E)

28

 

 

67.

Chimpanzees and humans share about _________ percent of the same genes.

A)

20

B)

40

C)

60

D)

78

E)

98

 

 

68.

Transmission across the synapse requires about _________ second.

A)

1/1000

B)

1/100

C)

1/10

D)

1/5

E)

1/2

 

 

69.

True or false? Impotence is the inability to produce sperm cells.

A)

True

B)

False

 

 

70.

Amylase in the oral cavity increases rate of chemical breakdown of

A)

cellulose.

B)

glucose.

C)

lipid.

D)

protein.

E)

starch.

 

 

71.

Human body cells normally have __________ pairs of autosomes.

A)

22

B)

23

C)

46

D)

48

E)

92

 

 

72.

The smaller molecules composing proteins are

A)

amino acids.

B)

fatty acids.

C)

monosaccharides.

D)

nucleic acids.

E)

nucleotides.

 

 

73.

Proprioception is the sense of

A)

chemical changes.

B)

consciousness.

C)

deep pain.

D)

position.

E)

temperature changes.

 

 

74.

The LH surge has each of the following effects except to

A)

break down the ovarian wall through enzymes.

B)

complete meiosis I for the primary oocyte.

C)

increase the surge of FSH.

D)

form the corpus luteum.

E)

stimulate estrogen production.

 

 

75.

A typical diastolic pressure is about

A)

20.

B)

40.

C)

70.

D)

120.

E)

160.

 

 

76.

An element:

A)

can be glucose or water.

B)

cannot combine with other elements.

C)

contains several different types of atoms.

D)

is found in the periodic table.

E)

is never part of living things.

 

 

77.

The carrying capacity of an ecosystem is the

A)

average body size of its organisms.

B)

environmental resistance it offers against growth.

C)

number of limiting factors affecting its size.

D)

number of organisms it can support indefinitely.

E)

resources to support a population.

 

 

78.

True or False? "Risk factor" is a term most closely related to geocentrics. 

A)

True

B)

False

 

 

79.

Erythropoietin stimulates the stem cells in ________ bone marrow.

 

 

80.

An ecotopic pregnancy usually occurs

A)

in the myometrium

B)

the ovarian ligament

C)

uterus

D)

the uterine tubes

E)

uretha

 

 

81.

The eustachian tube functions

A)

as a pressure valve.

B)

for body balance.

C)

to detect sound waves.

D)

to discriminate colors.

E)

to protect the ear.

 

 

82.

Plasma ________ are the most abundant substances dissolved in the plasma.

 

 

83.

From the genetic cross, Aa x Aa, the probability that an offspring develops albinism is

A)

100 percent.

B)

75 percent.

C)

50 percent.

D)

25 percent.

E)

0 percent.

 

 

84.

Which protein traps RBCs to form a clot?

A)

fibrin

B)

fibrinogen

C)

hemoglobin

D)

prothrombin

E)

thrombin

 

 

85.

Select the incorrect characteristic about bacteria.

A)

can reproduce only in host cell

B)

cell wall present

C)

one circular strand of DNA in the cell

D)

plasma membrane present

E)

prokaryotic cell structure

 

 

86.

Select the human trait that is not polygenic.

A)

ABO blood type

B)

body weight

C)

height

D)

intelligence

E)

skin color

 

 

87.

A shift in the characteristics of the gene pool of a population occurs through

A)

cloning.

B)

gene bottleneck.

C)

independent segregation.

D)

natural selection.

E)

phenotypic stability.

 

 

88.

Which one of the following contains incomplete proteins?

A)

cheese

B)

eggs

C)

legumes

D)

meat

E)

milk

 

 

89.

Organic compounds consist mainly of ________ atoms.

A)

calcium

B)

carbon

C)

nitrogen

D)

oxygen

E)

phosphorous

 

 

90.

Select the incorrect association.

A)

acrosome/sperm cell

B)

androgen/testosterone

C)

Cowper's gland/seminal fluid

D)

sebaceous gland/oil

E)

secondary spermatids/diploid

 

 

91.

The ________ circuit is between the heart and lungs.

A)

cardiac

B)

coronary

C)

hepatic

D)

lymphatic

E)

pulmonary

 

 

92.

The first structure of the eye to intercept light rays is the

A)

choroid.

B)

cornea.

C)

iris.

D)

pupil.

E)

retina.

 

 

93.

The ________ is the command center of the cell.

A)

cytoplasm

B)

mitochondrion

C)

lysosome

D)

nucleus

E)

smooth ER

 

 

94.

The glomerulus is a tuft of

A)

capillaries.

B)

fibers.

C)

muscle cells.

D)

neurons.

E)

tubules.

 

 

95.

Which structure stores sperm cells?

A)

epididymis

B)

scrotum

C)

testis

D)

vas deferens

E)

urethra

 

 

96.

Muscle tissue has ________ varieties.

A)

2

B)

3

C)

4

D)

5

E)

6

 

 

97.

There are _________ pairs of cranial nerves.

A)

10

B)

12

C)

15

D)

20

E)

30

 

 

98.

Which substance is not normally part of the glomerular filtrate?

A)

amino acid

B)

glucose

C)

ion

D)

plasma protein

E)

water

 

 

99.

B and T are kinds of

A)

basophils.

B)

eosinophils.

C)

lymphocytes.

D)

monocytes.

E)

neutrophils.

 

 

100.

True or False? A neuron normally sends its impulse from its axon to dendrites. 

A)

True

B)

False

 

 

101.

True or False? The left ventricle pumps blood into the pulmonary arteries. 

A)

True

B)

False

 

 

102.

The term "homeostasis" comes from two Greek words meaning

A)

before and after.

B)

health and disease.

C)

human and nonhuman.

D)

the environment and populations.

E)

the same and standing.

 

 

103.

By the completion of meiosis I and II in the male, 1 diploid cell normally produces ________ sperm cells.

A)

2

B)

4

C)

6

D)

8

E)

12

 

 

104.

Unstable isotopes often result from the addition of

A)

protons.

B)

electrons.

C)

neutrons.

D)

isotrons.

E)

positrons.

 

 

105.

Ammonia is formed by the metabolism of

A)

amino acids.

B)

glucose.

C)

hydrogen.

D)

ions.

E)

lipids.

 

 

 

 

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