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43 Cards in this Set
- Front
- Back
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emergent property
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a characteristic of a system that does not appear in any of its component parts
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_____are fundamental building blocks of all mater
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atoms
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the smallest unit of life is a _____
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cell
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__________ move around for at least part of their life
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cell
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organisms require ______&_____ to maintain themselves grow and reproduce
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energy and nutriants
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____ is the process that maintains conditions in the internal environment within ranges that cells cna tolerate
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homeostatasis
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bacteria archaea and eukarya are three _____
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domains
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Dna ______
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containes instructions for building protons undergoes mutation is transmited from parents to offspring
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_____ is the transmission of DNA to offspring
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inheritance
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____ is the process by whick an organism produces offspring
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reproduction
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science only addresses that which is ___________
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observable
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__________ are the original source of variation in traits
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mutations
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a trait is _____ if it improves an organisms chances to survive and reproduce in its environment
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adaptive
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a control group is _____
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the standard against the experimental groups can be compared
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emergent property
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occures at a higher organizational level in nature not at levels be low it
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natural selection
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differential survival and reproduction among individuals of a population that vary in details of shared traits
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scientific theory
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time tested hypothesis
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hypothesis
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testable explanation
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prediction
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a statement of what a hypothesis leads you to expect to see
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species
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type of organism
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a _____ is a molecule in to which a radioisotope has bee incorporated
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tracer
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an ion is an atom that has __________
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a diffrent number of electrons and protons
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a _______ forms when atoms of 2 or more elements bond covalently
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compound
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the measure of an atoms ability to pull electrons away from another atom is called ____
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electronegitivity
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atoms share electrons evenly in a _____
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polar covalent bond
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symbols for the elements are arranged according to ______ in the periodic table of elements
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atomic number
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liquid water has
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profusion of hydrogen bonds cohesion resistance to increases in tempature
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a ______ substance repels water
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hydrophobic
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hydrogen ions are ______
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indicated by pH dissolved in blood and they are protons
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when desolved in water ______ donates H+
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acid
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salt releases ions other than ____ in water
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hydrogen ions (H+) or hydroxyl ions (OH-)
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a ______ is a chemical partnership between a weak acid or base and its salt
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buffer system
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hydrophillic
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polar readily dissolves in water
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atomic number
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number of protons in the nucleus
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mass number
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number of protons and neutrons in the nucleus
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tempature
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measure of molecular motion
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each carbon atom can share pairs of electrons with up to ____ other atoms
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four
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sugars are types of _______
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carbohydrate
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_______ is a simple sugar (a mono saccharide)
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glucose and ribose
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unlike saturated fat the fatty acid tails of unsaturated fats incorporate 1 or more
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double covalent bonds
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T or F. unlike saturated fats all of the unsaturated fats are beneficial to health because their fatty acid tails bend and do not pack together
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false
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steroids are among the lipids with no _____
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fatty acid tails
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which is a class of molecule that encompasses all of the other molecules listed? triglycerides waxes lipids fatty acids steroids or phospholipids
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lipids
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