Bio 161 Penn State Exam 1
Study online at https://quizlet.com/_7wu68t
1. Anatomy Structure of the human body
2. Physiology Function of the human body
3. Homeostasis Adapt to external variables, Temperature, pH, Blood volume, Sugar levels
4. Negative Feed- Body senses change and reacts to negate or reverse the condition
back Loop
5. Hormone Chemical messenger
6. Positive Feed- Cycle in which an initial change leads to a greater change, Self-amplifying, rapid
back Loop change
7. Atom Subatomic particles- protons, neutrons, electrons
8. Element identified by the number of protons
9. Neutral Atom Same number of protons and electrons
10. Ion Atoms that have an uneven number of protons and electrons
11. Cation Positive charge, give up electrons easily
12. Anion Negative charge, accept electrons easily
13. Ionic Bond Transfer of electrons
14. Covalent Bond Two atoms share electrons
15. Action potentials commnunication
16. Molecules multiple atoms held together
17. Polar Molecule difference of charge at both ends of the molecule
1/8
, Bio 161 Penn State Exam 1
Study online at https://quizlet.com/_7wu68t
18. Hydrogen Bonds attraction between polar molecules
19. Monomer single molecular unit of a polymer
20. Polymer molecule containing many repeating monomers
21. Carbohydrate Glucose (Blood sugar), Fructose
Monomers
22. Carbohydrate Glycogen, Cellulose, Starch
Polymer
23. Carbohydrate Provide cellular fuel, enzymes are used to break down sugar in the process of
cellular respiration to release ATP
24. Glycogen stored carbs in humans
25. Phospholipids Cell membrane- Polar hydrophillic Phosphate head, 2 nonpolar hydrophobic fatty
acid tails (carbon + hydrogen)
26. Hydrophobic hates water
27. Hydrophillic loves water
28. Triglycerides Energy storage, Insulation, 3 fatty acids and 1 glycerol
29. Saturated fatty Single bond, as many hydrogens as possible, Meat/dairy, Cardiovascular disease
acids
30. Unsaturated fat- double or triple bonds, could add a hydrogen or two, plant oils, fish, avocados,
ty acids omega fatty acids
31. Steroids nonpolar, flat or circular, often hormones
32. Proteins polymers of amino acid monomers,
2/8
Study online at https://quizlet.com/_7wu68t
1. Anatomy Structure of the human body
2. Physiology Function of the human body
3. Homeostasis Adapt to external variables, Temperature, pH, Blood volume, Sugar levels
4. Negative Feed- Body senses change and reacts to negate or reverse the condition
back Loop
5. Hormone Chemical messenger
6. Positive Feed- Cycle in which an initial change leads to a greater change, Self-amplifying, rapid
back Loop change
7. Atom Subatomic particles- protons, neutrons, electrons
8. Element identified by the number of protons
9. Neutral Atom Same number of protons and electrons
10. Ion Atoms that have an uneven number of protons and electrons
11. Cation Positive charge, give up electrons easily
12. Anion Negative charge, accept electrons easily
13. Ionic Bond Transfer of electrons
14. Covalent Bond Two atoms share electrons
15. Action potentials commnunication
16. Molecules multiple atoms held together
17. Polar Molecule difference of charge at both ends of the molecule
1/8
, Bio 161 Penn State Exam 1
Study online at https://quizlet.com/_7wu68t
18. Hydrogen Bonds attraction between polar molecules
19. Monomer single molecular unit of a polymer
20. Polymer molecule containing many repeating monomers
21. Carbohydrate Glucose (Blood sugar), Fructose
Monomers
22. Carbohydrate Glycogen, Cellulose, Starch
Polymer
23. Carbohydrate Provide cellular fuel, enzymes are used to break down sugar in the process of
cellular respiration to release ATP
24. Glycogen stored carbs in humans
25. Phospholipids Cell membrane- Polar hydrophillic Phosphate head, 2 nonpolar hydrophobic fatty
acid tails (carbon + hydrogen)
26. Hydrophobic hates water
27. Hydrophillic loves water
28. Triglycerides Energy storage, Insulation, 3 fatty acids and 1 glycerol
29. Saturated fatty Single bond, as many hydrogens as possible, Meat/dairy, Cardiovascular disease
acids
30. Unsaturated fat- double or triple bonds, could add a hydrogen or two, plant oils, fish, avocados,
ty acids omega fatty acids
31. Steroids nonpolar, flat or circular, often hormones
32. Proteins polymers of amino acid monomers,
2/8
