BIO 120 Exam Review

Na+

Sodium

Mg2+

Magnesium

H+

Hydrogen

K+

Potassium

Ca2+

Calcium

O

Oxygen

C

Carbon

N

Nitrogen

Cl-

Chloride

Define an Ion?

an atom that has an unequal amount of electrons and protons

What are the bodys four most abundant

oxygen, hydrogen, carbon, nitrogen

What is facilitated diffusion?

Protein channel is used

What effects the rate of diffusion?

Temp, size of particles, concentration gradient (high), viscosity of solvent (thin)

Covalent bonds.

Share electrons

What are Nuclei Tides made of?

Monomer; Nucleotides (DNA & RNA)

What are proteins made of?

Monomer; Amino Acids (Collagen and Enzymes)

What are carbohydrates made of?

Monomer; Monosaccharides (Glycogen)

What are lipids made of?

Monomore; fatty acids (triglycerides, phospholipids, cholesterol)

What is the structure of a Triglyceride?

1 glycerol and 3 fatty acids

What is the structure of Phospholipids?

1 phosphate head and 2 fatty acid tails

What is the function of the Nucleus?

contains DNA (chromatin & Chromosomes)

What is the function of the Rough ER Ribosomes?

Protein SynthesisW

What is the function of the Smooth ER?

Lipid synthesis

What is the function of the Golgi Apparatus?

Packs lipis & proteins made by Smooth & Rough Ers to be secreted

What is the function of the Mitochondria?

ATP production (provides the cell with energy)

What is the function of the Lysosome?

breaks down molecular waste