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95 terms

HESI A2 SCIENCE

STUDY
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Which tissue cannot be considered a major tissue type
Extracellular Tissue
What is the chemical formula for Ammonia
NH3
Ions that have a negative charge
Anions
What is the most numerous element in the body
Hydrogen
In body weight calculations, what do we have as the highest concentration in the body
Protein
The three dimensional shape of a molecule is known as
Conformation
Which of the following bases of base pairs is not associated with deoxyribonucleic acid
Uracil
Which of the following base of base pairs is not associated with RNA
Thymine
The atomic weight of an atom is the ratio of an atom's mass compared to _____ atom
Carbon
What is the characteristic number of covalent bonds that carbon forms
4
DNA consists of how many chains of nucleotides coiled together
2
Alkaline solutions have a pH that is higher than what
7.0
Which cell is not considered a major class of biological units
cytosol cells
Which of the following is not considered a function of the plasma membrane in cells
protein synthesis
Which organelle is responsible for protein synthesis
Ribosomes
One ____ is the heat required to increase the temp of water 1 degree if 1 gram of water is present on the Celsius scale
Calorie
A state of chemical equilibrium where the product of the reaction has required almost all the reactants
Irreversible reaction
The primary molecule of energy transfer is
ATP
In glucose breakdown what stage is the most energy produced
oxidative phosphorylation
Arterioles, venules and capillaries are collectively known as
microcirculation
Which arteries carry low oxygenated blood to the lungs
pulmonary arteries
blood entering the right ventricle in the heart during normal circulation goes to the ______ next
lungs
Blood entering the left ventricle in the heart during normal circulation goes to the _____ next
systemic circulation
What is not a function of the kidneys?
Secreting enzymes
Is the kidney part of the gastrointestinal structure?
NO
Is the pancreas part of the urinary structure
NO
The point in a female's menstrual cycle that is most associated with pregnancy/fertility
ovulation
Plasma cells make
antibodies
On the periodic table what is Sn
Tin
On the periodic table what is Cr
Chromium
On the periodic table what is Ti
Titanium
What element has the atomic # 1
Hydrogen
One mole is
6.04 x 10 to the 23rd (Avogadro's #)
The "sensory fingers" of a nerve are callled
dendrites
The central nervous system is composed of the
brain and spinal cord
An atom that only has one electron in the outer orbit is considered a
free radical
Solutes dissolve in a ______ to form a solution
solvent
Glucose is considered a _____ sugar
simple
Is glycogen considered a steriod?
NO
The sugar in each nucleotide of RNA is called
Ribose
What cell structures conduct the nerve signal from the cell body to target cells in neural tissue
Axon
The rhythmical changes in the body during a 24 hour period is known as the
Circadian rhythm
The movement of molecules across a membrane
Diffusion
The process of evulution applies the principle of ______ to allow the survival of the fittest
Natural Selection
The human body has ____ chromosomes
23
The process of converting DNA to RNA is called
Transcription
Glucose is converted in the most ATP's under which of the following conditions
Aerobic
The breakdown of organic molecules is called
Catabolism
One calorie is the amount of heat necessary to raise ___g of water ___ degree on the celsius scale
1, 1
Which cell organelle produces the most ATP's
Mitochondria
What is the thin layer of tissue that lines the back of the eyeball that the image of an object is projected on
Retina
The ___ and ___ provide information about the body's position in space with movemement from the ear
utricle and saccule
Which nerve is cranial nerve #1
olfactory
The compound NaCl
Sodium Chloride
Household ammonia and human blood are considered
bases
Human blood is what % water?
91.5%
_____ is the changing of substances into a different form that entered the body
assimilation
When two or more elements are combined this forms a
compound
What type of chemical reaction is this:
AB+CD = AD + CB
Exchange reaction
What type of chemical reaction is this:
AB = A + B
Synthesis reaction
Which of the following cartilage is considered the firmest type of connective tissue
elastic cartilage
Which of the following is not a characteristic of smooth muscle
the presence of intercalated disks
What is the correct sequence of Mitosis
Prophase, Metaphase, Anaphase, Telophase
At what point during mitosis do the chromosomes (chromatids) separate
Anaphase
The process of a WBC engulfing a bacterial cell
phagocytosis
What are the building blocks of proteins
amino acids
Can proteins break down fats?
NO
Lactose is considered a
double sugar
Homeostasis in the body is done through what kind of process
Negative Feedback
Different tissues make up
organs
Skin, sweat glands and nails are considered part of which organ system
Integumentary
Atoms that gain or lose electrons
Ions
The atomic number of an element is classified by the number of ____ in the nucleus
protons
How many electrons are found in the second shell of the atom if the atom is filled to capacity in the second shell
8
Elements are made of small particles known as
Atoms
What can be found in the nucleus of an atom
protons and neutrons
The majority of the periodic table is comprised of elements that are considered
metals
The ability of unspecialized cells to turn into specialized cells is known as
cell differentiation
What is the charge of an electron
-1
Which element is not considered a major element in the human body
Nitrogen
When skeletal muscle contracts which of the following mechanisms is applied
sliding-filament mechanism
which cells can engulf a bacterial cell
WBC's
Which area of the brain controls balance and vision input
occipital lobe
The specific scientific name of an organism is identified by ____ and ____
order and species
Compounds that are in various structure alignments, but are the same mass and made of the same elements are known as
Isomer
Insulin is produced where in the pancreas
Islets of Langerhan
the process of converting sunlight into energy in plants
photosynthesis
Gregor Mendel's ground breaking genetic research was conducted on which type of plants
Pea plants
The thyroid requires ____ to function
Iodine
What compound is necessary for photosynthesis
Carbon Dioxide
Is the tibia part of the axial skeleton
NO
What animal is considered an invertebrate
Starfish
The process of cytoplasm division during plant cell replication is called
cytokenesis
Gas exchange occurs in which tissue
Capillaries
The end products of photosynthesis are ____ and ____
Oxygen and Glucose