HESI A2 SCIENCE
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chrhen2007 on October 16, 2012
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95 terms
Terms | Definitions |
|---|---|
 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 |
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