HESI A2 Practice Test

A person with AB- blood can NOT receive blood from whom?

Which blood group is considered the universal donor?

What is the only artery in the body to carry oxygen poor blood?

Chocolate cysts of the ovaries are attributed to which of the following?

Which of the following is NOT true of synovial joints?

Ligaments connect which of the following?

What is the longest muscle in the human body?

Where is the hyoid bone located?

Which of the following is NOT true of epithelial tissue?

Which of the following is not produced by an exocrine gland?

Where is the pyloric sphincter located?

Blood vessels enter and exit bones through which structure?

Which cells are responsible for bone formation?

Why are bones considered to be organs?

Which of the following shows the correct order of the flow of waste through the large intestine?

Which of the following is considered the primary pacemaker of the heart?

In which location does a sperm cell first fertilize an egg?

Where is interstitial fluid found in the body?

What is the normal pH in the body?

What is the bladder capacity of the average adult?

Which lobe of the brain is associated with organizing sensory information, language, speech production, and memory formation?

What does lipase do?

Which is not a function of the the liver?

Which salivary gland produces mucin?

Which substance in the teeth continues to form throughout life and supports the enamel?

What is the name the layer of the heart used for contraction that has striated muscle fibers?

Bile is produced by what structure?

Which is not a part of of the electrical conduction system of the heart?

Which chamber of the heart receives blood from the superior and inferior vena cava?

What is the name of the heart valve between the left atrium and left ventricle?

Where are neurotransmitters released?

The structures that moves nerve impulses away from the cell body are called what?

Where does sperm maturation occur?

What is the hormone that stimulates uterine contractions?

The exchange of gases in the lungs occurs where?

The volume of air in a normal breath is called what?

What is the primary stimulus for breathing?

What is the name of the tube connecting the bladder to the kidney?

What is the functional unit of the kidney called?

What is not a function of the kidney?

Where is fat stored within the skeletal system?

What are the names of the bones in the lower arm?

The blood volume in the average adult male is?

A person with type B blood has which of the following?

What is the earliest defense against invading bacteria?

Which of the following is NOT a part of the body's chemical defense system against infection?

Which of the following is considered an example of naturally acquired passive immunity?

Worms lack which of the following?

Which organelle is responsible for generating ATP that is used for chemical energy?

Which of the following is true of eukaryotic and prokaryotic cells?

Positive feedback is a mechanism used by the body that results in amplification or enhancement of a signal that has already been activated. An example of this would be:

When placed in a hypotonic solution, a cell will do which of the following?

Which is not an affect of photo-oxidation?

The movement of a substance across a cell membrane from low to high concentration is known as what?

During which stage of mitosis does the single cell split into two separate daughter cells?

Which of the following is not an example of an ecosystem?

Decomposition occurs fastest in which of the following environments?

In birds and bees, their crop is responsible for what?

One partner benefiting while the other is harmed is what form of symbiotic relationship?

The stigma serves what purpose?

Mycology is defined as the study of what?

Which of the following taxonomic ranks is arranged to show broadest, most inclusive to narrowest, most exclusive?

The ability of an open system to regulate its internal environment to maintain stable conditions is...

Which of the following is NOT a biotic factor?

Which is not a morphology of bacterial classification?

Halophile archaebacteria only survive in environments with which of the following?

What are bacteria that need oxygen to survive called?

Where do bacteria live?

What is the cilium-like structure that certain bacteria cells have which allows them to attach to a host tissue?

Which of the following is a disease not caused by bacteria?

Thigmotropism is the oriented growth of an organism in response to which of the following?

Which chemical(s) carry an impulse along a nerve cell?

Using the Lewis-dot structure model, how many dots would Carbon have?

Which of the following would produce Hydrogen ions in an aqueous solution and would turn a litmus test from blue to red?

Dihydrogen monoxide is better known as which of the following?

What is the most abundant element on earth?

What is the most abundant element in the universe?

Which one of the following elements is liquid at room temperature?

A solution that contains the maximum amount of dissolved solute is said to be what?

The change in state from a gas to liquid is called what?

Which of the following is not a property of water?

Viscosity increases in what circumstance?

Which of the following is true of gas particles?

Reactions that absorb heat are called what?

What is the molar mass of Calcium if the atomic mass is 40 amu?

What is the name of NO2?

BF3 is also known as what?

In the formula C12H22O11 the 12 behind the carbon represents the 12 what of carbon?

In an ionic bond, a positively charged ion is attracted to what type of ion?

High density matter, which is little affected by pressure, and holds its shape, is classified as which of the following?

DNA & RNA contain many of the same nitrogen-containing bases. Which base is only found in RNA?

Which of the following is not a component of lipids?

Simple carbohydrates composed of a single ring are also called what?

Which of the following is a water-soluble vitamin?

A catalyst increases which of the following in a chemical reaction?

The vertical columns of the periodic table are called what?

Bleaches, disinfectants, & salts often contain elements from which nonmetal group?

Which is not a property of metals?

The breakdown of which of the following provides the energy needed for chemical reactions in the body?

A particle with a negative or positive charge is referred to as what?

The bond between water molecules is called what?

Which pH would be the most basic?

Positively charged particles in an atom are called what?

What mineral is responsible for muscle contractions?

Which of the the following locations would the urinary bladder and internal reproductive organs be found?

What separates the thoracic cavity from the abdominal cavity?

A tissue examined under the microscope exhibits the following characteristics: cells found on internal surface of stomach, no extracellular matrix, cells tall and thin, no blood vessels in the tissue. What type of tissue is this?

Nerve tissue is composed of neuron and connective tissue cells that are referred to as which of the following?

Which tissue serves as the framework of the body by providing support and structure for the organs?

What is the basic unit of life and the building block of tissues and organs?

Which type of cell division takes place in the gonads?

In what area of the body would you expect to find an especially thick stratum corneum?

What are the glands of the skin that produce a thin, watery secretion?

Skin aids in maintaining the calcium and phosphate levels of the body by participating in the production of which of the following?

1803 + 156 =

835 + 145 =

1372 + 139 =

123 + 54 + 23 =

673 - 241 =

547 - 88 =

222 - 114 =

12478 - 467 =

Jeff walks 5 miles west then turns north and walked 8 miles. How far has Jeff walked?

Julie picks 26 tomatoes from the tomato plants in her garden. She gives 7 tomatoes to her next-door neighbor. How many tomatoes does Julie have now?

846 x 7 =

325 x 6 =

653 x 12 =

806 x 55 =

795 x 14 =

999 x 22 =

582 x 325 =

9438 x 165 =

Jan is preparing an examination for 29 students. Each student will have 30 questions, with no student having duplicate questions. How many questions will Jan need to prepare?

John is ordering lunch for the volunteers at the hospital. There are 12 units in the hospital, with 15 volunteers in each unit. How many lunches will John need to order?

132 / 11 =

9618 / 3 =

2466 / 2 =

325 / 13 =

5024 / 8 =

3705 / 5 =

859 / 4 =

6987 / 7 =

There are 225 pieces of candy in a large jar. Ben wants to give the 25 campers in his group an even amount of candy. How many pieces of candy will each camper receive?

Edie has 132 tulip bulbs. She wants to plant all of the tulip bulbs in 12 rows. How many tulip bulbs will Edie plant in each row?

9.2 + 7.55 =

2.258 + 64.58 =

892.2 + 56 =

22 + 3.26 =

8.5 + 7.55 + 14 =

18 - 7.55 =

31.84 - 2.430 =

21.36 - 8.79 =

Bill has 2.5 vacation days left for the rest of the year and 1.25 sick days left. If bill uses all of his sick days and his vacation days, how many days will he have off work?

Erin has 6.25 peach pies. She gives Rose 3.75 of the peach pies. How many pies does Erin have left?

Definition: Sudden

Definition: To voluntarily refrain from something.

Definition: A means to obtain entry or a means of approach.

Definition: Responsible

Definition: To hold fast or stick together

Definition: Undesired, possible harmful

Why is polarity the most important characteristic of water?

Athletes are often concerned with the question of what they need in their diets to increase muscle mass and strength. What biologic molecule would you recommend that would accomplish this?

Which organelle would you expect to be present in a cell responsible for detoxifying multiple molecules?

A cell from heart muscle would more than likely contain an unusually high proportion of:

Which part of cellular respiration produces the greatest amount of ATP?

When plants do not receive enough water, their photosynthetic rate drops. This is because:

Which of the following statements is true about the Krebs cycle and the Calvin cycle?

Why is it important for cells to undergo mitosis?

72 chromosomes undergo meiosis. How many chromosomes will be in each gamete?

Which of the following shows how information is transformed to make a protein?

List the hierarchic system of organization from most inclusive to least.

Most scientists agree that the core theme in biology today is the idea of _____.

Who first introduced the idea of evolution, and in what year was it introduced?

What is the name of Darwin's 1859 book, in which he first introduced the notion of evolution?

Darwin proposed that current species arose from a process he called "_____ _____ _____"

TRUE OR FALSE: Science is a process.

For an experiment to be performed, the first step is _____.

A(n) _____ is a statement or explanation of certain events or happenings.

The second step in experimentation is the _____.

A(n) _____ is a repeatable procedure of gathering data to support or refute the hypothesis.

The final step in the scientific process is _____.

_____ is the substance that makes life possible.

What molecule consists of two hydrogen atoms covalently bonded to one oxygen atom?

The most significant aspect of water is the _____ of its _____.

It is the polar nature of water that allows for _____ bonding between molecules.

TRUE or FALSE: Water's high specific heat is one benefit of the hydrogen bonding that results from the polar nature of water.

The _____ of a molecule is the amount of heat necessary to raise the temperature of 1 gram of that molecule by 1 degree Celsius.

Water has a relatively high _____ value, which allows water to resist shifts in temperature.

TRUE or FALSE: One powerful benefit of water's relatively high specific heat is the ability of oceans or large bodies of water to stabilize climates.

TRUE or FALSE: Hydrogen bonding results in strong cohesive and adhesive properties.

_____ is the ability of a molecule to stay bonded or attracted to another molecule of the same substance.

_____ is the ability of water to bond to or attract other molecules or substances.

When water is sprayed on a wall, some of it sticks to the wall. This is an example of _____.

When water freezes, it forms a _____, which actually causes the molecules to spread apart.

The lattice structure of frozen water results in the phenomenon of _____.

TRUE or FALSE: Most molecules, when they are in solid form, will float on the liquid form of the substance.

TRUE or FALSE: If ice did not float, lakes would freeze from the bottom to the top.

The _____ of water allows it to act as a versatile solvent.

TRUE or FALSE: Water is known as the universal solvent.

Name the 4 most significant molecules to biology.

_____ are generally in long chains, or polymers, of sugars.

Name the 3 most important functions of carbohydrates.

Lipids are better known as _____.

Specifically, lipids are:

Name the 2 main categories of fatty acids:

TRUE or FALSE: Unsaturated fatty acids contain one or more double bonds in their hydrocarbon tail.

Saturated fats are _____, whereas unsaturated fats are _____ at room temperature.

With regard to saturated or unsaturated fats, which of the two is considered more detrimental to health.

Cardiovascular problems are likely with diets that contain high quantities of _____ fats.