LEC 5 Flashcards
(19 cards)
What is Biochemistry?
The chemistry of life
List the 2 types of compounds?
- Organic
- Inorganic
What is inorganic compounds?
Does not contain carbon bonded to hydrogen
What is organic compound?
Has carbon bonded to hydrogen (C6 & H2)
What are the 4 important compounds in the human body?
- Water
- Acids
- Bases
- Salts
What types of solutes can water dissolve?
Hydrophilic solutes (water loving)
(Polar covalent bonds)
What types of solution can’t be dissolved in water?
Hydrophobic (water hating)
Non-polar molecules- oils, fats
What’s are acids?
Hydrogen ion donor
When acid is placed in water - Hydrogen donates electrons - INCREASE
Give one example of an acid in the body?
Hydrochloric acid (HCl)
What are base?
Hydrogen acceptor
When a base is mixed in water - hydrogen ions DECREASES
What is a pH scale?
Represent hydrogen ion concentration in solution
Goes from 0-14
TRUE OR FALSE
1.The more hydrogen ion solution the lower the pH
- The fewer the hydrogen ion the higher the pH
- TRUE
- TRUE
Give examples of Neutral substances?
Water, blood, milk
What is Buffer?
-Maintains normal blood PH (7.4)
-Chemical system - prevent large change in pH
-increase or decrease pH to maintain 7.4 pan level
What is the normal blood pH value?
Blood pH = 7.4
What is salt?
Metal + non-metal joined by ionic bond.
Metal cation and non-metal anion joined by ionic bonds
Note: salt is the major component of the bones and teeth
TRUE OR FALSE
- From 1-5 is acidic with (1) being the strongest and 7 the weakest?
2.When the pH goes down it’s Acidic?
3.When the pH goes up it’s base?
ALL TRUE!
TRUE OR FALSE
Every number on the scale changes by 10 fold?
TRUE
TRUE OR FALSE
(1). 1 on the pH scale is more acidic than 6?
(2) 1 is stronger than 3 how many times?
- TRUE
- 100x (always multiple each space(fold) by 10)
