amino acids dna Flashcards
1
Q
State and explain one risk associated with the use of cisplatin as an anticancer drug
A
May attach to DNA in normal cells
Killing them or causing damage
2
Q
What are proteins?
A
polymers made of combinations of amino acids
3
Q
State the components that make up a nucleotide in DNA.
A
- 2 deoxyribose
- phosphate group
- base
4
Q
base pairs
A
Adenine + Thymine
Guanine + Cytosine
5
Q
primary structure of proteins
A
sequence of amino acids bonded by covalent peptide bonds
6
Q
secondary structure of proteins
A
- hydrogen bonds between N/O atom and H atom
- can form α helix or β pleated sheet
7
Q
Describe how an α helix.
A
H bonds between every fourth peptide bond
8
Q
Describe how a β pleated sheet is formed.
A
→ protein folds so that two parts of polypeptide chain are parallel to each other
→ hydrogen bonds form between parallel peptide bonds
