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BIO 210 Chapter 1-2 Study Guide With Explanations Of Answers.

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  • BIO 210
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  • BIO 210

Anything that takes up space is considered to be - correct answer Matter Nerve impulses involve the flow of an electrical current, a type of energy know as _________ enegry - correct answer Electrical ...

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  • August 9, 2024
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BIO 210 Chapter 1-2 Study Guide

Anything that takes up space is considered to be - correct answer Matter



Nerve impulses involve the flow of an electrical current, a type of energy know as _________ enegry -
correct answer Electrical



Atoms that have lost or gained electrons are known as - correct answer Ions



The most abundant element in the human body is - correct answer Oxygen



The atomic number of an atom is equal to the number of _______ an atom contains - correct answer
protons



Compounds that contain carbon-hydrogen bonding are collectively termed________ compounds -
correct answer Organic



Polar molecules like water result when electrons are shared ______ - correct answer
unequally between atoms



An atom's outermost shell is known as its ________ shell. - correct answer
valence



an acid is a molecule that releases (donates) ______ - correct answer protons
(hydrogen ions)



Proteins are synthesized from ________ during synthesis reactions. - correct answer
amino acids

,Glycogen and starch are examples of a specific category of carbohydrates called ________ - correct
answer polysaccharides



A solution with a pH of 11.7is _________ times more basic (alkaline) than a solution with a pH of 8.7 -
correct answer 1000



Unsaturated fatty acid chains contain one or more _____ bonds between carbon atoms - correct answer
double



Enzymes are examples of _________ proteins - correct answer globular
(functional)



The complementary base to adenine in a molecule of DNA is _____ - correct answer
Thymine



A nucleotide of DNA contain three components: - correct answer deoxyribose,
phosphate group, nitrogen-containing base



Elements are composed of building blocks known as - correct answer atoms



The movement of ions across plasma membranes is an example of - correct answer
electrical energy



Water is classified as a/an _______ compound - correct answer inorganic



An atom has lost two electrons. It is known as a/an - correct answer Cation



Increased temperature leads to _______ - correct answer An increase in the
rate of a chemical reaction



Atomic mass is equivalent to the number of _____ in an atom - correct answer
protons and neutrons

, The major function of potassium is to - correct answer play a role in nerve
impulse transmissions and muscle contractions



Iodine is needed to make what? - correct answer Functional thyroid hormones



An atom with an atomic number of 14 will have __________ electrons in its valence shell. - correct
answer 4



An atom with 6 protons, 7 neutrons, and 6 electrons shares four pairs of electrons with four other
atoms. This atom is now considered to be: - correct answer stable



An atom has 6 protons, 8 neutrons, and 6 electrons. Its atomic mass is: - correct answer
14



Atomic number of an atom reveals the number of _____ - correct answer
protons in the atomic nucleus



Isotopes have different numbers of __________; thus they also have different __________. - correct
answer neutrons; atomic masses



A molecule of methane, CH4, is known specifically as a(n) ________. - correct answer
compound



The subatomic particles that are responsible for the chemical behavior of atoms are the_____ - correct
answer Electrons



What type of bond results when electrons are completely transferred from one atom to another -
correct answer ionic bond



The growth of cells and repair of worn-out tissues is accomplished by _____ - correct answer
synthesis reactions

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