Intro & Chemistry Flashcards
Unit 1
Anatomy
The study of structure
Physiology
The study of Function
Atom
The smallest piece of matter
“Basic building block of all matter”
Molecule
Two or more atoms that are attached to each other by chemical bonds
Compound
Two or more atoms of two or more elements attached to each other by chemical bonds
Tissue
Group of cells
1. Epithelial
2. Muscular
3. Connective
4. Nervous
Organ
Group of tissues
ex. Live, spleen, kidney
Organ system
Group of organs
ex. Nervous system, digestive system, etc
Homeostasis
Maintain a stable internal environment at which the body works at its best
Positive feedback loop
Stimulate movement away from homeostasis to a finite point, stops, and returns to homeostasis
Negative feedback loop
Stops movement away from homeostasis and returns back to normal body temperature
ion
electrically charged atom
Cation
Positively charged atom
Anion
Negatively charged atom
Acid
Compound that releases hydrogen
Base
A compound that releases hydroxyl ion
Solvent
dissolver
Solute
What’s being dissolved
Element
smallest unique piece of matter
Ionic bond
One element donates its electron to another element
Covalent Bond
One atom shares electrons with another
Non polar covalent bond
atoms are shared equally
Polar covalent bond
atoms are shared unequally
Hydrogen bond
-Attached polar compounds together
Peptide bond
- attached amino acids together to form protein
3 Chemical reactions
- Synthesis
- Decomposition
- Exchange
Synthesis
Smaller pieces attach together to form bigger pieces
Decomposition
Bigger pieces break apart into smaller pieces
Exchange
Bigger pieces break into smaller pieces then attach to a different piece to create a new bigger piece
Inorganic molecules/compounds
Doesn’t have both carbon and Hydrogen as their structure
- water
- Oxygen
- Carbon
- Salts
- Acids and Bases
Organic compounds
Has both carbon and hydrogen as their structure
- Carbohydrates
- Lipids
- Proteins
- Nucleic acid
- Adenosine triphosphate
Types of chemical bonds that attach atoms together to form compounds
Ionic bond & Covalent bond
Two types of Covalent bond
- Polar
- Non Polar
Types of bond that attach molecules/ compounds together to form bigger molecules/compounds
Hydrogen & Peptide
Water properties
- Liquid
- Solvent
- Transports
- High heat capacity
- Lubricant (reduce friction)
- Chemical reagents (without water chemical reactions wont happen)
Oxygen function
O2
Used by cells to generate energy
Carbon dioxide function
CO2
Regulate PH of blood
Salts
Compounds where the atoms are held together by ionic bonds
Function of electrolytes
- Muscle contraction
- Generate energy
- Bone development
3 forms of Carbohydrates
- Monosaccharides
- Disaccharides
- Polysaccharides
Monosaccharide
- Smallest sugar
- Bonds with other
5 important monosaccharides & its function/structure
- Glucose
- Fructose
- Galacatose
Used my bells to make energy - Ribose - structure of RNA
- Deoxyribose - structure of DNA
Disaccharide
Two monosaccharides attached together
3 primary disaccharides
- Sucrose
- Maltose
- Lactose
Sucrose breakdown
Sugar
Glucose and Fructose
Maltose breakdown
Found in fruit
Glucose and Glucose
Lactose breakdown
Found in dairy
Glucose and Galactose
Polysaccharides
Many monosaccharides attached together
3 Important polysaccharides
- Glycogen
- Starch
- Celluose
Glycogen
- Made by animal cells
- lots of monosaccharides attached together MAINLY glucose
Starch function
Made by plant cells
Function: energy store
Cellulose
Made by plant cells
aka: fiber ( doesn’t digest)
Function: structure
Organic Compounds
- Carbohydrates
- Lipids
- Protein
- Nucleic Acid
- Adenosine triphosphate
Lipids
Contains atoms of Carbon, Hydrogen, and Oxygen
Not good solvents or solute
3 Main Lipids
Triglycerides
Phospholipids
Steroids/Cholesterol
Triglycerides function
Makes way more energy than glucose
Function: used by cells to make energy
Phospholipids function
Polar compound
Function: Main component of a cell membrane
Steroids/Cholesterol
Without cholesterol -> cant make testosterone
Function: steroid synthesis
Types of dietary lipids
- Saturated
- Unsaturated
- Trans
Saturated Lipid
Natural, solid at room temp
Unsaturated Lipid
Natural, liquid at room temp
Trans Lipid
Man made
Protein
Organic molecule composed of amino acids linked by peptide bonds
Amino acids
Used by cells to make energy
Used as building blocks to form protein
Polypeptides & Proteins
Strands of amino acids that are going to be attached to each other by peptide bonds
2 Main types of proteins
- Fibrous
- Globulus
Fibrous function
ex. collagen, Keratin
strand of amino acids that looks like a thread
Form structure of cell or tissue
Globulus
ex. hormones, enzymes, hemoglobin
Strand of amino acid folded
Function: makes things functional
Nucleic Acid
- RiboNucleic Acid
- DeoxyriboNucleic Acid
Adenosine triphosphate
Function: energy
Main elements of the body
- Oxygen
- Hydrogen
- Carbon