TEAS exam - version 7

Which of the following organs transports semen through the penis?

urethra

Which of the following describes the location of the heart relative to the lungs?

anterior

The rectum is a part of which of the following organs?

large intestine

Which of the following types of variables is changed in a scientific experiment?

independent variable

Which of the following type of reactions is shown below?
CaCl2 + 2NaOH → Ca(OH)2 + 2NaCl

double replacement

Which of the following is NOT part of the innate immune system?

antibodies

Which of the following is NOT a function of the respiratory system in humans?

to distribute oxygen to the rest of the body

Which of the following processes occurs in red bone marrow?

hematopoiesis

Which of the following parts of the nervous system is protected by the vertebral column?

spinal cord

Which of the following is a monomer used to build carbohydrates?

glucose

Which of the following terms describes a conclusion reached on the basis of evidence and reasoning?

inference

If a plant that is homozygous dominant (T) for a trait is crossed with a plant that is homozygous recessive (t) for the same trait, what will be the phenotype of the offspring if the trait follows Mendelian patterns of inheritance?

All offspring will show the dominant phenotype.

Which of the following processes uses the information stored in RNA to produce a protein?

translation

In the digestive system, the majority of nutrients are absorbed in which of the following organs?

small intestine

Which of the following is the number of chromosomes found in a human gamete?

23

Which of the following is composed of a motor neuron and its associated muscle fibers?

motor unit

Which of the following molecules can be found in abundance in a fatigued muscle?

lactic acid

Which of the following processes produces a gas from a solid?

sublimation

A student isolates and purifies a substance. She then puts it into the lab refrigerator at 4°C. When she comes back the next day, she notices that it has solidified. Which of the following statements about the substance is true?

it has a freezing point higher than that of water.

Which of the following molecules experience London dispersion forces?

all atoms and molecules

Which of the following is a heterogeneous mixture?

a mixture in which the atoms or molecules are distributed unevenly

A woman has been suffering from heartburn and thinks that a particular food is causing it. She decides that for each week during a single month, she will not eat a specific food and see if she has heartburn that week. In her experiment, the food she removes from her diet would be which of the following types of variable?

independent variable

Which of the following is true of a gene that is expressed?

It is influencing a phenotype trait.

Which of the following glands provides nourishment for sperm, as well as the majority of the fluid that combines with sperm to form semen?

seminal vesicles

Which of the following does NOT correctly match the endocrine system organ with its function?
hypothalamus: regulation of pituitary gland
pancreas: control of blood sugar through production of insulin and glucagon
testes: testosterone and estradiol production
pituitary: production and regulation of cortisol and adrenaline

pituitary: production and regulation of cortisol and adrenaline

Which of the following parts of the peripheral nervous system controls voluntary muscle actions?

the somatic nervous system

People who suffer from Type I diabetes are lacking function in which of the following organs?

pancreas

How many electrons can the 2s orbital hold?

2

Which of the follows describes what happens to the atomic radius when moving left to right on the periodic table?

it decreases.

Which of the following correctly describes atomic number?

the number of protons in an atom

Which of the following type of bone tissue gives bone its hardness and strength?

cortical bone

According to electron theory, which of the following is the maximum number of bonds a carbon atom can have?

Carbon has four valence electrons, which means it is able to form 4 bonds with other atoms.

Which of the following is an example of human error in an experiment?
an imperfectly calibrated scale
contaminating a sterile sample by breathing on it
a draft in the laboratory slightly changing the temperature of a liquid
failure to account for wind speed when measuring distance traveled

contaminating a sterile sample by breathing on it

What is the electron configuration of ground-state neutral magnesium (Mg)?

1s22s22p63s2
Mg has an atomic number of 12 on the periodic table. This means that ground-state neutral Mg has 12 protons and 12 electrons. These 12 electrons are assigned to orbitals in the order represented by the arrangement of the s-block and p-block on the periodic table: 1s22s22p63s2.

Which of the following is the temperature at which all molecular motion stops?
−460°C
−273 K
0 K
0°C

Absolute zero, or the lowest temperature theoretically possible, is 0 on the Kelvin scale. It is also written as -460 degrees F and -273 degrees C.

Which of the following terms best describes the position of the bladder relative to the uterus?
inferior
anterior
distal
latera

anterior

Which of the following is an example of a homozygous genotype that will express a recessive phenotype?
aa
AA
Aa
aA

aa

Which of the following groups on the periodic table will typically adopt a charge of +1 when forming ionic compounds?

alkali metals

How many electrons does a neutral atom of vanadium (V) have?

23

A patient has recently been diagnosed with a bone marrow disorder that leads to slow blood clotting. The patient is likely low in which of the following?

platelets

A scientist believes that a particular species of algae, S. sponferus, is able to grow even when living deep underwater. However, he hypothesizes that this species may grow more slowly than algae in other environments due to the lack of sunlight at this depth. Which of the following findings would not support the scientist's hypothesis?

Laboratory experiments show that S. sponferus grows equally well under a wide range of light conditions. (Your Answer)

Which of the following is the primary function of the large intestine?

absorb water

Which of the following heart valves prevents blood from going back into the right ventricle?

pulmonary

Tin-112 (Sn-112) is the most abundant isotope of tin (Sn) and has a mass number of 112. How many neutrons does Sn-112 have?

62

Which of the following bones are directly connected to the ulna and radius?

carpal

Mitochondrial myopathy, a mitochondrial disease that leads to low energy, heart issues, and kidney problems, happens when a cytosine is replaced by a thymine. What type of mutation causes mitochondrial myopathy?

point mutation

An individual who is heterozygous for a recessive trait is mated with an individual who is homozygous for the trait. What percentage of offspring will express the recessive trait?

50 percent

Which of the following mixtures is heterogeneous?

orange juice with pulp

Which of the following organs is held and protected by the meninges?

brain

the largest branch of the abdominal aorta which supplies oxygenated blood to the upper digestive tract

celiac artery

What gland provides nourishment for sperm, as well as the majority of the fluid that combines with sperm to form semen?

seminal vesicles

the exchange of gases and blood happens in what part of the respiratory system

alveoli

which of the following groups are apart of the axial skeleton
pectoral girdle
rib cage
arms & hands
pelvic girdle

rib cage

which of the following does not distinguish quantitative data collection from qualitative data collection methods

quantitive methods do not need to be as valid or reliable as quantitative methods

networks of capillaries that begins the filtration process by filtering blood plasma, the result of which is then excreted as urine?

glomerulus

mutation that occurs in the DNA of a non-reproductive cell

somatic mutation

layer of skin with the most blood vessels

dermis

DNA and RNA are built from monomers called?

nucleotides

structure of the male reproductive system that stores spermatozoa during the maturation process

epididymis

process of transporting molecules across a membrane by a protein that does not use energy

facilitated diffusion

which of the following molecules experience London dispersion forces

all atoms and molecules

property from RNA that makes it different from DNA

RNA contains uracil

hormone released by the kidneys and helps regulate blood pressure

renin

describe a scientific model

a simplification or metaphor for an observed phenomenon

which of the following is the molecule found in RBC's that binds to up to four oxygen molecules

hemoglobin

a descriptive, generalized body of scientific observations

law

which of the following types of cells are the main transporters of oxygen throughout the body

RBC

what type of hypothesis assumes no relationship between 2 variables

Null hypothesis

an organisms genotype is ...

their complete genetic code

what is a heterogeneous mixture

a mixture in which the atoms or molecules are distributed unevenly

bone type that makes up the wrist and foot

short

what valve prevents blood from going back to the left atrium

mitral

digestion begins in which organ

the mouth

how does a catalyst speed up a reaction

lowering the activation energy by providing an alternate route for the reaction

appendage of a neuron that sends electrical signals away from the neuron cells

axon

parts of the nervous system responsible for regulating involuntary muscle functions

autonomic nervous sytem

which of the following is the element of blood that comprises most of its total volume

plasma

when benzene burns completely in excess oxygen, what combustion product should form
CO2+H2O
cH4+H20
CO2+H2O2
CH4+H202

CO2 and H20

which of the following is NOT a hormone producing gland of the endocrine system
prostate, pituitary, adrenal, thyroid

prostate

primary muscle that drives ventilation

diaphragm

what occurs due to a hypersensitivity in the immune system that causes an inflammatory response to a common material

allergies

general term for a chemical substance that the body produces and transports through the blood to stimulate a cellular response

hormone

connective tissue that connects bone to bone and helps strengthen joints

ligament

material that is secreted into hair follicles to waterproof and lubricate the skin

sebum .. CBUM

which of the following is NOT a nucleobase of DNA
adenine, guanine, thymine, or uracil.

uracil

the atomic number represents the number of ________

protons in an atom

A chemist finds a bottle of hydrochloric acid in his laboratory. Although the chemical is labeled properly, the concentration is not included. He decides to determine the concentration of the acid by performing an acid-base titration reaction. To perform this reaction, he adds a known volume and concentration of strong base to the acid while measuring the pH of the combined acid and base. Once a neutral pH is obtained, the reaction has proceeded to completion and the concentration of the acid may be calculated. In this reaction, what is the dependent variable?

The dependent variable is the pH of the reaction mixture.

Alleles for brown eyes (B)are dominant over alleles for blue eyes (b). If two parents are both heterozygous for this gene, what is the percent chance that their offspring will have brown eyes?

75

Which of the following is the process of transporting molecules across a membrane by a protein that does not use energy?

facilitated diffusion

A scientist does a monohybrid cross to determine how a trait is inherited and finds that the trait is mostly seen in male offspring. What type of inheritance pattern does this gene show?

X-linked

What is the oxidation state of the chlorine atom in HCl?

-1

What type of reaction is shown below?
2Li+CI2-->2LiCI

synthesis reaction

Within the nucleus, DNA is tightly wound around histones. How does this arrangement regulate gene transcription?

Histones are able to modify the DNA sequence of genes.