ACTUAL Exam Questions and CORRECT
Answers
Homeostasis - CORRECT ANSWER - Controlled internal environment
Negative feedback - CORRECT ANSWER - Detects changes from normal and returns to
normal
Cells - CORRECT ANSWER - Smallest unit of life
Tissues - CORRECT ANSWER - Groups of cells
Organs - CORRECT ANSWER - Groups of tissues
Organ systems - CORRECT ANSWER - Groups of organs
Organism - CORRECT ANSWER - Group of organ systems maintaining homeostasis
Proteins - CORRECT ANSWER - Made of amino acids
Carbohydrates - CORRECT ANSWER - Provides quick energy
Fats - CORRECT ANSWER - Long term energy storage, insulation, protection
Nucleic acids - CORRECT ANSWER - Information storage and transfer system for cells
, Hydrogen - CORRECT ANSWER - 1p; mass=1
Carbon - CORRECT ANSWER - 6p, 6n, 6e; mass=12
Nitrogen - CORRECT ANSWER - 7p, 7n, 7e; mass=7
Oxygen - CORRECT ANSWER - 8p, 8n, 8e; mass=8
Atoms - CORRECT ANSWER - Smallest unit of an element with its properties
Nucleus - CORRECT ANSWER - Contains protons and neutrons
Atomic number - CORRECT ANSWER - Number of protons
Atomic mass - CORRECT ANSWER - Number of protons + neutrons
Simple carbohydrates - CORRECT ANSWER - Provides quick energy
Lipids - CORRECT ANSWER - Don't dissolve in water, mostly carbon and hydrogen
Fats and oils - CORRECT ANSWER - Long term energy storage, insulation, protection
Enzymes - CORRECT ANSWER - Speed chemical reactions without being consumed
Nucleic acids - CORRECT ANSWER - Information storage and transfer system for cells
DNA - CORRECT ANSWER - Made of 4 different subunits: A, C, T, G