2.1 Guided Notes Flashcards
Elements are pure substances….
….that cannot be broken down chemically into simpler kinds of matter.
Each element is only made up of….
1 type of atom.
An atom is the simplest particle of an element that refrains…
…all the properties of that element.
Protons have _______ and are __________.
Mass, positive
Electrons are ___________ and have no ___________.
Negative, Mass.
Neutrons are _________ and have __________.
Neutral, mass.
Protons and neutrons make up what?
The Nucleus.
A chemical bond is an interaction between….
….two atoms, which holds them together/connects them.
A chemical reaction makes and breaks what?
Bonds.
Bonds that are broken release energy, while making a bond….
….stores energy.
The four organic compounds necessary for life are:
- Carbohydrates
- Lipids
- Proteins
- Nucleic Acids
Organic compounds contain ___________.
Carbon.
The functions of carbohydrates (Carbs) are…
…short/medium term energy storage.
Carbohydrates (carbs) are made of small repeating units, ___________, and _____________.
Sugars, starches.
Carbohydrates only consist of C_______, H_________, and O__________.
Carbon, hydrogen, oxygen.
Monosaccharides are _________ sugars.
Simple
Many monosaccharides in a chain are called __________.
Polysaccharides.
Polysaccharides have two functions:
Energy storage and structural support (in plants).
A lipids function is….
….long(er) term energy storage.
The two types of lipids are:
Saturated fats and Unsaturated fats.
Saturated fats are saturated with ____________, are formed in ____________ chains, and mostly come from animal sources. They also are more likely to lead to ____________.
hydrogen, straight, heart disease.
Unsaturated fats aren’t bonded to as many hydrogen, due to a ________ bond. This results in a ________ shape. They aren’t able too pack as tightly, and mostly come from _________ and fish.
double, kinked, plants.