BIO 151 ACTUAL EXAM SCRIPT QUESTIONS AND ANSWERS FULLY REVIEWED MATERIAL

BIO 151 ACTUAL EXAM SCRIPT QUESTIONS
AND ANSWERS FULLY REVIEWED
MATERIAL

●● Evolution
Answer: process of change that has transformed life on earth


●● Properties of life
Answer: -evolutionary adaptation
-order
-energy processing
-reproduction
-growth and development
-response to stimuli in environment
-regulation
-homeostasis


●● Unifying biological themes
Answer: -emergent properties
-organisms interact w/ enviro
-life requires energy

,-structure is related to function
-cell=basic unit of structure
-DNA=basis for continuation of life
-unity+diversity=product of evolution


●● Inductive reasoning
Answer: observations --> general pattern


●● Deductive reasoning
Answer: general pattern --> observations


●● Matter
Answer: -makes up organisms
-anything that has mass and takes up space


●● Elements
Answer: -make up matter


●● Essential elements
Answer: C, O, H, N (P, S)


●● Trace elements

, Answer: Fe, I


●● Atom
Answer: smallest unit of matter that retains properties of element


●● Valance electrons
Answer: outermost shell, determine chem. behavior, can hold 8 electrons


●● Chemical bonds
Answer: -bond between 2 atoms to form molecule
-provides stability by completing valence shell


●● Covalent bonds
Answer: strong, non-metal to non-metal


●● Electronegativity
Answer: the more electronegative an atom is, to stronger it pulls shared
electrons to itself


●● Polar covalent
Answer: electrons are shared unequally (Ex: H₂0)