Organizational levels, Systems, Homeostasis, Chemistry & Biomolecules (Ch. 1-4) Flashcards
Cation vs Anion
Cations are positive, anions are negative
3 types of organic molecules
Carbohydrates, Lipids, and Proteins
3 types of Carbohydrates
Monosaccharides, Disaccharides, and Polysaccharides
5 functions of carbohydrates
1) Energy
2) Molecular structure
3) Cell Membrane Components
- signals, identification flags
4) Extracellular Matrix
- materials between cells
5) Dietary Fiber
- plant fibers
11 major elements in the body
Oxygen, Carbon, Nitrogen, Hydrogen, Calcium, Phosphorus, Potassium, Sodium, Magnesium, Chlorine, Sulfur
6 Functions of lipid compounds
1) Energy - storage
2) Structure - cell membrane
3) Vitamins - absorbs fat soluble vitamins
4) Protection - organs
5) Insulation - skin
6) Regulation - make up hormones
7 functions of Protein Compounds
1) Provide structure - skin, nails, cell membrane
2) Catalyze chemical reactions
3) Transport substances in blood -
4) Communicate information to cells - chemical messengers
5) Act as receptors - binding sites
6) Defend the body against harmful agents - antibodies
7) Provide energy
What do bases do to pH?
Increase OH-, decrease H+, and Increase pH (8-14)
What do acids do to pH?
Increase H+, Decrease OH-, Decrease pH
What are molecules?
Atoms of two or elements that join together
- could be from the same element
- H2, CO2
Name the 3 types of chemical bonds
1) Ionic
2) Covalent
3) Hydrogen
What are free radicals?
Temporarily unattached, highly reactive chemical groups
Inorganic vs. Organic compounds
Organic
- Contain C-C or C-H bonds
- larger and more complex
- In all living organisms
Inorganic
- NO C-C or C-H bonds
- not living
What is the most common organic compound?
Carbon
How many types of amino acids are there?
There are 21 amino acids
- 8 essential
- 13 nonessential
What are electrolytes?
Acids, bases, and salts
What are ionic bonds?
- transfer electrons from one atom to the other
- one positive atom and one negative atom
- opposites attract
How do you find an atom’s atomic mass?
Add the number of protons and the number of neutrons in the nucleus.