Discussion topics (Exam 1) Flashcards
lipoprotein complexes
groups of molecules with a single layer of phospholipids on the outside ad fats and cholesterol on the inside
How are lipoprotein complexes transported in the blood?
the phospholipid layer is hydrophilic which it allows it to attach to the water molecules in blood and move through the blood stream
Why do the fats and cholesterols in a lipoprotein complex have to be contained within the phospholipid layer?
the fats an cholesterol are nonpolar (hydrophobic) so they cannot attract to the water molecules in the blood and move throughout the bloodstream
Why do glucose and amino acids not require a lipoprotein complex to be transported in the blood?
they’re polar
Why does water have such a high specific heat capacity?
the energy used to heat water has to break through the hydrogen bonds
cis and trans bonds
have C=C
polar
hydrophilic
nonpolar
hydrophobic
alpha glucose monomers
hydroxyls on the same side
beta glucose monomers
hydroxyls on opposite sides
differences between DNA & RNA
- DNA has thymine and RNA has Uracil
- DNA is double stranded, RNA is single stranded
- DNA has deoxyribose, RNA has ribose
similarities between DNA and RNA
- both contain adenine, guanine, and cytosine
2. both have phosphodiester bonds
Bonds present in DNA/RNA strands
-phosphodiester bonds
basic structure of amino acids
H
I
NH4+ - C. - COO-
I
R group5 categories for R groups
charged: positive and negative
non charged: polar & nonpolar
special cases
