ACC A&P Assessment STUDY GUIDE Questions Answered Correctly Rated A+
Describe the Levels of organization in multi cellular organisms starting with atoms and ending with
organisms. - Answers The levels of organization are atoms, molecules, organelle, cell, tissue, organ,
organ system and organism.
Define the term homeostasis. - Answers Homeostasis is an organism or cell that regulates it's internal
conditions by a system of feedback controls.
Describe, in general terms, how negative and positive feedback mechanisms are used by organisms to
maintain homeostasis. - Answers Negative Feedback; is the response opposite of original deviation
returns the variable to a set point.
EXAMPLE: Blood Glucose, temperature.
Positive Feedback; reinforces original deviation causes rapid and temporary change in a variable.
EXAMPLE: blood clotting
THE METRIC SYSTEM - Answers
State the basic units of the metric system for length, mass, time, and volume. - Answers Basic Units:
Length: (M) Meter
Mass: (G) Gram
Time: (S) Second
Volume: (L) Liter
Identify the fraction or multiple associated with each of the following prefixes: Kilo, Deci, Centi, Milli,
Micro and Nano. - Answers Kilo: (K) (The largest)
1000
10^3
Deci: (D)
1/10
0.1
10^-1
Centi: (C)
,1/100
0.01
10^-2
Milli: (M)
1/1000
0.001
10^-3
Micro: (U)
1/1,000,000
0.000,001
10^-6
Nano: (N) (The Smallest)
1/1,000,000,000
0.000,000,001
10^-9
****Combine the prefixes above with a metric unit and know the correct abbreviation of the combined
prefix and unit. - Answers
****Convert Quantities between the metric system. - Answers REMEMBER: King Henry Died by Drinking
Chocolate Milk.
ATOMS, MOLECULES, BONDS, and PROPERTIES of MATTER: - Answers
Define the term element. - Answers An element is a substance that cannot be further broken down.
Identify the common chemical symbols for: Oxygen, Carbon, Hydrogen, Nitrogen, Calcium, Potassium,
Sodium, Chlorine, Iron and Phosphorus. - Answers Oxygen: O
Carbon: C
Hydrogen: H
Nitrogen: N
Calcium: Ca
, Potassium: K
Sodium: Na
Chlorine: Cl
Iron: Fe
Phosphorus: P
Identify the chemical formulas for carbon dioxide, carbon monoxide, water, hydrochloric acid, sodium
chloride, glucose, and sodium bicarbonate. ( Also known as sodium hydrogen carbonate. ) - Answers
Carbon Dioxide: C02
Carbon Monoxide: CO
Water: H2O
Hydrochloric Acid: HCl
Sodium Chloride: NACl
Glucose: C6Hl2O6
Define the term atom. - Answers An atom is the basic and smallest unit of a chemical element.
Describe the basic structure of an atom. (Protons, Neutrons and Electrons.) - Answers Atoms consist of
electrons surrounding a nucleus that contains neutrons and protons.
Identify the charge and the location in the atom of protons, neutrons and electrons. - Answers Electrons
are on the outside with a negative charge. Protons are in the center and have a positive charge.
Neutrons are in the nucleus as well, but are neutral.
Define the term isotope. - Answers An isotope is atoms of the same element with different numbers of
neutrons.
Recognize that isotopes are used in diagnosis and treatment in medicine. - Answers
Define the terms molecule and ion. Explain the role of electrons in chemical bonding. - Answers
Molecule: it consists of two or more atoms held together by chemical bonds.
Ion: An atom or molecule in which the total number of electrons are not equal to the total number of
protons, giving it a net positive or negative electrical charge.
The role of electrons are ionic and covalent bonds.
****Compare how covalent and ionic bonds hold atoms together and how each type of bond is shown
in a diagram. - Answers Ionic Bonding: An electron from one atom is transferred to another atom.
Describe the Levels of organization in multi cellular organisms starting with atoms and ending with
organisms. - Answers The levels of organization are atoms, molecules, organelle, cell, tissue, organ,
organ system and organism.
Define the term homeostasis. - Answers Homeostasis is an organism or cell that regulates it's internal
conditions by a system of feedback controls.
Describe, in general terms, how negative and positive feedback mechanisms are used by organisms to
maintain homeostasis. - Answers Negative Feedback; is the response opposite of original deviation
returns the variable to a set point.
EXAMPLE: Blood Glucose, temperature.
Positive Feedback; reinforces original deviation causes rapid and temporary change in a variable.
EXAMPLE: blood clotting
THE METRIC SYSTEM - Answers
State the basic units of the metric system for length, mass, time, and volume. - Answers Basic Units:
Length: (M) Meter
Mass: (G) Gram
Time: (S) Second
Volume: (L) Liter
Identify the fraction or multiple associated with each of the following prefixes: Kilo, Deci, Centi, Milli,
Micro and Nano. - Answers Kilo: (K) (The largest)
1000
10^3
Deci: (D)
1/10
0.1
10^-1
Centi: (C)
,1/100
0.01
10^-2
Milli: (M)
1/1000
0.001
10^-3
Micro: (U)
1/1,000,000
0.000,001
10^-6
Nano: (N) (The Smallest)
1/1,000,000,000
0.000,000,001
10^-9
****Combine the prefixes above with a metric unit and know the correct abbreviation of the combined
prefix and unit. - Answers
****Convert Quantities between the metric system. - Answers REMEMBER: King Henry Died by Drinking
Chocolate Milk.
ATOMS, MOLECULES, BONDS, and PROPERTIES of MATTER: - Answers
Define the term element. - Answers An element is a substance that cannot be further broken down.
Identify the common chemical symbols for: Oxygen, Carbon, Hydrogen, Nitrogen, Calcium, Potassium,
Sodium, Chlorine, Iron and Phosphorus. - Answers Oxygen: O
Carbon: C
Hydrogen: H
Nitrogen: N
Calcium: Ca
, Potassium: K
Sodium: Na
Chlorine: Cl
Iron: Fe
Phosphorus: P
Identify the chemical formulas for carbon dioxide, carbon monoxide, water, hydrochloric acid, sodium
chloride, glucose, and sodium bicarbonate. ( Also known as sodium hydrogen carbonate. ) - Answers
Carbon Dioxide: C02
Carbon Monoxide: CO
Water: H2O
Hydrochloric Acid: HCl
Sodium Chloride: NACl
Glucose: C6Hl2O6
Define the term atom. - Answers An atom is the basic and smallest unit of a chemical element.
Describe the basic structure of an atom. (Protons, Neutrons and Electrons.) - Answers Atoms consist of
electrons surrounding a nucleus that contains neutrons and protons.
Identify the charge and the location in the atom of protons, neutrons and electrons. - Answers Electrons
are on the outside with a negative charge. Protons are in the center and have a positive charge.
Neutrons are in the nucleus as well, but are neutral.
Define the term isotope. - Answers An isotope is atoms of the same element with different numbers of
neutrons.
Recognize that isotopes are used in diagnosis and treatment in medicine. - Answers
Define the terms molecule and ion. Explain the role of electrons in chemical bonding. - Answers
Molecule: it consists of two or more atoms held together by chemical bonds.
Ion: An atom or molecule in which the total number of electrons are not equal to the total number of
protons, giving it a net positive or negative electrical charge.
The role of electrons are ionic and covalent bonds.
****Compare how covalent and ionic bonds hold atoms together and how each type of bond is shown
in a diagram. - Answers Ionic Bonding: An electron from one atom is transferred to another atom.
