PAX Practice Test 2 Science Review
The formula for calculating kinetic energy is :
(1 / 2)mv^2
What is the oxidation number of hydrogen in CaH_2?
- 1
What is the mass (in grams) of 7.35 mol of water?
132g
How many basic tissue types does a human have?
4
Which of the following orbitals is the last to fill?
6s
Which of the answer choices provided best defines the following statement?
Boyle's Law
Which of the following is an example of an absolute age?
a fossil is 37 million years old
If an organism is AaBb, which of the following combinations in the gametes is impossible?
aa
What are the two types of cellular transport?
active and passive
Which of the following is NOT true for all cells?
all cells are also called eukaryotes
The rate of a chemical reaction depends on all of the following except:
amount of mass lost
Which of the following is the name for the study of the structure and shape of the human body?
anatomy
What is the name of any substance that stimulates the production of antibodies?
antigen
Which of the following does NOT exist as a diatomic molecule?
boron
Which of the following correctly lists the cellular hierarchy from the simplest to the most complex structure?
cell, tissue, organ, organ system ,organism
Within which part of the brain is sensory information interpreted?
cerebrum
Which of the following is NOT one of the five major physical properties of minerals?
chemical composition
Which of the following proteins is produced by cartilage?
collagen
What kind of bond connects sugar and phosphate in DNA?
covalent
Which of the following factors directly contributes to soil erosion?
deforestation and overgrazing
What is the name for substances that cannot be broken down into simpler types of matter?
elements
Which law of classical thermodynamics states that energy can neither be created nor destroyed?
first
Which of the following is NOT a steroid?
hemoglobin
What is another name for aqueous HI?
hydriodic acid
Approximately 96.5% of seawater is composed of:
hydrogen and oxygen
What does aerobic mean?
in presence of oxygen
An atom with an electrical charge is called a(n):
ion
If a cell is placed in a hypertonic solution, what will happen to the cell?
it will shrink
Which of the following is NOT a state of matter?
lattice
Which of the heart chambers is the most muscular?
left ventricle
What is the name for the reactant that is entirely consumed by the reaction?
limiting reactant
Which organ system includes the spleen?
lymphatic
Which group of major parts and organs make up the immune system?
lymphatic system, spleen, tonsils, thymus, and bone marrow
What is the role of ribosomes?
make proteins
Which of the following is true?
mass is the quantity of matter an object has
Which hormone is produced by the pineal gland?
melatonin
What is the typical way a solid would turn to a liquid and then to a gas?
melting then vaporization
Which of the following organ systems has the purpose of producing movement through contraction?
muscular
What is the name of the binary molecule compound NO_5?
nitrogen pentoxide
Which of the following is NOT a product of the Krebs cycle?
oxygen
Which of the components of the nervous system is responsible for lowering the heart rate?
parasympathetic system
Which of the following is the name for the study of how parts of the body function?
physiology
Which of the following life forms appeared first on Earth?
prokaryotes
Which of the following statements correctly compares prokaryotic and eukaryotic cells?
prokaryotic cells do not contain membrane-bound organelles, eukaryotic cells do
What hormone stimulates milk production in the breast during lactation?
prolactin
What are the two types of measurement important in science?
quantitative and qualitative
Which of the following statements correctly describes a similarity or difference between rocks and minerals?
rocks are classified by their formation and the mineral they contain, while minerals are classified by their chemical composition and physical properites
When an earthquake occurs, the shaking that is observed results directly from:
seismic waves
In which of the following muscle types are the filaments arranged in a disorderly manner?
smooth
Which of the following techniques is NOT a radiometric dating process?
stratigraphic dating
Which of these minerals would have the lowest score on the Mohs scale?
talc
Water is likely to have the shortest residence time in which of the following types of reservoirs?
the atmosphere
Which of the following is a true statement about the Earth's oceans?
the ocean's salinity is usually between 34 and 35 parts per thousand, or 200 parts per million
Which of the following is the best definition for the term circulation?
the transport of oxygen and other nutrients to the tissues via the cardiovascular system
How are lipids different than other organic molecules?
they are not water soluble
What is the point of a phase diagram where a substance can exist as a solid, a liquid and a gas?
triple point
What is the typical result of mitosis in humans?
two diploid cells
Which of the following structures has the lowest blood pressure?
vein
How does water affect the temperature of a living thing?
water keeps temperature stable
Which of the following lists several phases of the sedimentary cycle in the correct order?
weathering, erosion, transportation, deposition
