TEAS Practice Test (Science Portion) Part 3

What is the hierarchy of the structure of the human body?

This system works as the transportation system for substances such as oxygen, carbon dioxide, and nutrients in the body.

This system breaks down food so that the nutrients can be easily passed into the blood and circulated through the body

This system controls body functions

This system protects internal tissues from injury, waterproofs the body, and helps regulate the body temperature. This system also serves as a barrier to foreign substances

This system helps cleanse the blood and houses the white blood cells that are involved in protecting the body from environmental pathogens

This system produces movement through contractions

This system acts as the body's control system and is necessary to protect the body from changes in the internal and external environment

This system produces offspring

This system keeps all the cells in the body supplied with oxygen and removes the carbon dioxide

This system provides support and protection for the body, supplies a framework use to create movement, and served as a storage for minerals, such as calcium

This system helps maintain the water and electrolyte balance within the body, regulates the acid base balance in the blood, and removes all nitrogen-containing wastes from the body.

True or false: blood that passes through the tricuspid valve enters the left ventricle

True or false: blood that passes through the mitral valve enters the pulmonary artery

True or false: after contraction of the left ventricle, blood enters the aorta

True or false: after contraction of the right ventricle, blood enters the pulmonary artery

True or false: after contraction of the right atrium blood enters the right ventricle

True or false: the pulmonary valve ensures that blood stays in the aorta

The respiratory system supplies the body with ___ and removes ___

It is true the walls of the ___ that oxygen and carbon dioxide move in and out of the capillaries in the lungs

During ___ the diaphragm contracts, the chest cavity enlarges, creating negative pressure in the chest cavity and pulling air into the lungs.

When the diaphragm relaxes, carbon dioxide is forced out of the body

An abdominal muscle that contrakt, pulls air into the lungs during inspiration

True or false: the nervous system directs bodily defenses against external stimuli

True or false: the nervous system regulates heart and breathing rate

True or false: the nervous system supplies the body with oxygen and remove carbon dioxide

True or false: the nervous system releases heat built up by the muscular system

The digestion of carbohydrates begins with salivary amylase in the

The propulsion of food through the gastrointestinal tract is called

The surface area for absorption in the small intestine is increase as a result of

The breakdown of proteins by protease begins where?

Anxiety about an upcoming final exam causes a student to experience an increase in blood pressure, dilation of pupils and dry mouth. Which of the following nervous system responses is responsible for these symptoms?
a) voluntary
b) sympathetic
c) limbic
d) cognitive

The bands in muscle sarcomere are formed by actin and which of the following proteins?
a) myosin
b) dynein
c) keratin
d) laminin

4 He + 14 N--> 17 O + X
Which of the following options for "x" in the nuclear reaction above?
a) 1H 1
b) 18 F 9
c) 3H 1
d) 1 N 0

235 U --> X + 4 He 92 2
Which of the following is "x" in the reaction above?
a) 239 Pu 94
b) 231 Pu 94
c) 231 Th 90
d) 239 Th 90

After doing a belly flop into a swimming pool, a child says "The water slapped me." Which of the following is the property of water that causes slap?
a) irregular expansion
b) hydrogen bonding
c) capillary action
d) hydrophobic exclusion

An atom of lithium, atm number 3, has 3 protons, 4 neutrons, and 3 electrons. What is the atom's mass number?
a) 3
b) 6
c) 7
d) 10

The best DIRECT method of assessing global climate change is to measure changes over time in:
a) polar bear populations in the Artic circle
b) reflective power of Earth
c) surface temperatures on Earth
d) hurricane frequency in Atlantic ocean

The bonds that exist between carbon and hydrogen in methane (CH4) molecule are classified as which of the following?
a) hydrogen bonds
b) polar covalent bonds
c) nonpolar covalent bonds
d) ionic bonds

Clouds are formed when water _____from the surface of the earth and ____ at high altitudes
a) condenses, vaporizes
b) sublimates, evaporates
c) evaporates, condenses
d) vaporizes, sublimates

Cystic fibrosis is a homozygous recessive condition. A genetic counselor should advise concerned parents that, if each of them had a parent with cystic fibrosis yet neither of them is affected, the probability of their potential child being affected is:
a) 0%
b) 25%
c) 50%
d) 100%

Defining principle of scientific explanations is that they are:
a) falsifiable
b) unexpected
c) scholarly
d) predictable

A drug that stops the function of genetic code from DNA polymerase would:
a) slow the transcription of genetic code from DNA to messenger RNA
b) hinder the rate of binding of transfer RNA anticodons to messenger RNA codons
c) prevent formation of peptide bonds between the amino acids of the growing protein molecule
d) block the replication of DNA carrying the genetic code in the nucleus

Which of the following indicates the number of neutrons and electrons for a neutral isotope of iridium that has a mass number of 191?
a) 77 neutrons and 114 electrons
b) 114 neutrons and 77 electrons
c) 191 neutrons and 114 electrons
d) 191 neutrons and 77 electrons

A student is testing the materials in two soil samples. Which of the following assumptions can be inferred from the data presented in the table above?
a) different soils contain different nutrients
b) sample 1 is the best soil
c) nitrates are more frequently found in soil than are phosphates
d) most plants thrive in nitrate-rich soil

Which of the following is considered least useful in conducting quantitative scientific research?
a) modeling data
b) applying empirical formulas
c) using highly precise measurement tools
d) recording qualitative observations

A researcher wishes to test the hypothesis that soy is a superior diet compared to whole wheat for the reproductive purposes of a certain type of beetle. Which of the following describes how the researcher should best test this hypothesis?
a) record number of eggs recovered from a single culture
b) count the eggs recovered from 10 separate cultures reared on soy versus a single culture on whole wheat
c) compare the eggs from 10 soy cultures versus 10 whole-wheat cultures
d) record the eggs from one soy culture versus 10 whole-wheat cultures

Suppose a 2-kilogram mass is traveling at 3 meters/second. Which is the following is the objects kinetic energy?
a) 3 joules
b) 6 joules
c) 9 joules
d) 18 joules

Ca+H2SO4
Which of the following statements correctly describes the outcome of the reaction above?
a) calcium is oxidized to Ca2+
b) sulfuric acid is decomposed to hydrogen sulfide
c) sulfuric acid is neutralized to calcium sulfate
d) hydrogen is oxidized to hydrogen gas

cause of cell differentiation is that different cells:
a) encode different DNA
b) have different chromosomes
c) contain similar protein information
d) express alternate genetic information

chewing tobacco and cigarettes both contain nicotine which constricts blood vessels. smoking also involves the inhalation of tar, which leads to cellular changes and loss of elasticity in lung tissue. based on this information, which of the following health problems is likely to be common to chewing tobacco and cigarettes?
a) alzheimer's
b) chronic bronchitis
c) heart disease
d) emphysema

the concentration of hydrogen ions in water with pH of 7 is
a) ten to the seventh power times M
b) seven times M
c) point seven times M
d) ten to the negative seven times M

Dark matter is a form of energy proposed to explain the repulsive forces between matter in the universe. It has never been observed directly. Which of the following is the best rationale for many scientists contention that it exists?
a) it serves as a working hypothesis to explain real observations in the universe
b) a basic scientific principle is to consider everything possible until proven otherwise
c) since light energy exists in the universe, dark energy must also exist
d) light energy from distant stars is very faint because it is absorbed by dark energy